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Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage SCIE
期刊论文 | 2024 , 40 (9) , 4852-4859 | LANGMUIR
WoS CC Cited Count: 7
Abstract&Keyword Cite Version(2)

Abstract :

Transition metal oxides with the merits of high theoretical capacities, natural abundance, low cost, and environmental benignity have been regarded as a promising anodic material for lithium ion batteries (LIBs). However, the severe volume expansion upon cycling and poor conductivity limit their cycling stability and rate capability. To address this issue, NiO embedded and N-doped porous carbon nanorods (NiO@NCNR) and nanotubes (NiO@NCNT) are synthesized by the metal-catalyzed graphitization and nitridization of monocrystalline Ni(II)-triazole coordinated framework and Ni(II)/melamine mixture, respectively, and the following oxidation in air. When applied as an anodic material for LIBs, the NiO@NCNR and NiO@NCNT hybrids exhibit a decent capacity of 895/832 mA h g(-1) at 100 mA g(-1), high rate capability of 484/467 mA h g(-1) at 5.0 A g(-1), and good long-term cycling stability of 663/634 mA h g(-1) at 600th cycle at 1 A g-1, which are much better than those of NiO@carbon black (CB) control sample (701, 214, and 223 mA h g(-1)). The remarkable electrochemical properties benefit from the advanced nanoarchitecture of NiO@NCNR and NiO@NCNT, which offers a length-controlled one-dimensional porous carbon nanoarchitecture for effective e-/Li+ transport, affords a flexible carbon skeleton for spatial confinement, and forms abundant nanocavities for stress buffering and structure reinforcement during discharge/charging processes. The rational structural design and synthesis may pave a way for exploring advanced metal oxide based anodic materials for next-generation LIBs.

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GB/T 7714 Chen, Ming , Zhao, Ming-Yang , Liu, Feng-Ming et al. Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage [J]. | LANGMUIR , 2024 , 40 (9) : 4852-4859 .
MLA Chen, Ming et al. "Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage" . | LANGMUIR 40 . 9 (2024) : 4852-4859 .
APA Chen, Ming , Zhao, Ming-Yang , Liu, Feng-Ming , Li, Meng-Ting , Zhang, Meng-Lei , Qian, Xing et al. Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage . | LANGMUIR , 2024 , 40 (9) , 4852-4859 .
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Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage Scopus
期刊论文 | 2024 , 40 (9) , 4852-4859 | Langmuir
Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage EI
期刊论文 | 2024 , 40 (9) , 4852-4859 | Langmuir
Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution SCIE
期刊论文 | 2024 , 655 | APPLIED SURFACE SCIENCE
WoS CC Cited Count: 6
Abstract&Keyword Cite Version(2)

Abstract :

Green energy such as hydrogen energy has broad development prospects in promoting the adjustment of energy structure due to its advantages in cleanliness and efficiency. Hydrogen evolution reaction (HER) for water splitting can be used as a simple and effective avenue for hydrogen production. Platinum (Pt), a noble metal, has shown excellent catalytic performance as a conventional cathode catalyst for HER, but its high price has severely hindered its commercial application. Herein, a hollow nanorod array based Pt-free self-supporting electrode with a unique structure was developed for efficient hydrogen evolution reactions. This electrode was composed of a hollow ordered Ni-CoS2@MoS2 array as the main catalyst and a highly conductive Ti foil as a conducting substrate. In the synthesis process, ammonium tetrathiomolybdate was used as a multifunctional vulcanizing agent. Thanks to the unique structure of the hollow nanorods, the active ingredient was adequately revealed, making it possible to improve catalytic activity. This unique catalyst exhibited excellent HER performance at different pH values. Ni-CoS2@MoS2/Ti electrode exhibited high HER performance in alkaline, acidic, and neutral media, with overpotentials of 153, 192, and 196 mV at 10 mA cm -2 and Tafel slopes of 65.8, 67.8, and 93.3 mV dec-1, respectively.

Keyword :

Active cite Active cite Hollow nanorod array Hollow nanorod array Hydrogen evolution Hydrogen evolution Water splitting Water splitting Wide pH range Wide pH range

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GB/T 7714 Qian, Xing , Wu, Jiashuo , Yang, Yajie et al. Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution [J]. | APPLIED SURFACE SCIENCE , 2024 , 655 .
MLA Qian, Xing et al. "Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution" . | APPLIED SURFACE SCIENCE 655 (2024) .
APA Qian, Xing , Wu, Jiashuo , Yang, Yajie , Zhang, Wanting , Zheng, Han , Xia, Juan et al. Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution . | APPLIED SURFACE SCIENCE , 2024 , 655 .
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Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution Scopus
期刊论文 | 2024 , 655 | Applied Surface Science
Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution EI
期刊论文 | 2024 , 655 | Applied Surface Science
N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions EI
期刊论文 | 2024 , 1001 | Journal of Alloys and Compounds
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Abstract :

An available approach to ameliorate the property of electrocatalysts for transition metal selenides (TMSs) is to transform their structure, morphology, and elemental composition, especially for hydrogen evolution reactions (HER), which can be a long-term task. In this work, Ni-Co nanospheres were synthesized by a hydrothermal method, and then in the synchronous processes of selenization and carbonization, it reacted with the peripherally coated melamine-copper complex, which was the reactant between melamine and copper ions. Ultimately, CoSe2/NiSe2@Cu2Se-NC nanospheres with a core-shell structure were synthesized after annealing process. This special structure provided more active attachment sites, enabling CoSe2/NiSe2@Cu2Se-NC to exhibit excellent HER properties under wide-pH range. Especially, in acidic conditions, it had a low initial potential of 41.0 mV, a small Tafel slope value of 48.7 mV dec–1, and a long service life. The proposed scheme indicates that a new approach will be added to the synthesis of electrocatalysts based on TMSs. © 2024 Elsevier B.V.

Keyword :

Binary alloys Binary alloys Carbon Carbon Carbonization Carbonization Cobalt alloys Cobalt alloys Cobalt compounds Cobalt compounds Copper compounds Copper compounds Doping (additives) Doping (additives) Electrocatalysts Electrocatalysts Electrolysis Electrolysis Hydrogen Hydrogen Metal ions Metal ions Nanospheres Nanospheres Nickel compounds Nickel compounds pH pH Selenium compounds Selenium compounds Shells (structures) Shells (structures) Transition metals Transition metals

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GB/T 7714 Guo, Ming , Chen, Siyan , Xiong, Yonglian et al. N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions [J]. | Journal of Alloys and Compounds , 2024 , 1001 .
MLA Guo, Ming et al. "N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions" . | Journal of Alloys and Compounds 1001 (2024) .
APA Guo, Ming , Chen, Siyan , Xiong, Yonglian , Chen, Ming , Xia, Juan , Chen, Wenbin et al. N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions . | Journal of Alloys and Compounds , 2024 , 1001 .
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N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions SCIE
期刊论文 | 2024 , 1001 | JOURNAL OF ALLOYS AND COMPOUNDS
N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions Scopus
期刊论文 | 2024 , 1001 | Journal of Alloys and Compounds
Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex EI
期刊论文 | 2024 , 602 | Journal of Power Sources
Abstract&Keyword Cite Version(2)

Abstract :

The efficiency and stability of perovskite solar cells (PSCs) can be greatly affected by various factors such as passivating the perovskite film, oxidizing the hole-transport material of 2,2′,7,7′-tetras(N,N-p-methoxyaniline)-9,9′-spirodifluorene (Spiro-OMeTAD), and inhibiting the iodide migration. Here we introduce a multifunctional starch-iodine complex in the perovskite film to enhance the fill factor and stability of PSCs. Results demonstrate that the starch-iodine complex from the perovskite film can release iodine molecules to gently oxidize the Spiro-OMeTAD, which can significantly increase the PSC's fill factor. Moreover, the remaining starch can effectively passivate the perovskite film to obviously improve the PSC's long-term stability. Furthermore, the starch-iodine complex can absorb and store the iodide ions to generate a starch-triiodide complex, which can release iodide ions to promote iodide defect self-healing and suppress iodide migration in the perovskite films, resulting in a further enhancement of the PSC's long-term stability. As a result, the PSC based on the starch-iodine complex obtains a superior cell efficiency of 22.60% with a high fill factor of 79.54%, and keeps 91.12% of its original efficiency after 1500 h. © 2024 Elsevier B.V.

Keyword :

Efficiency Efficiency Passivation Passivation Perovskite Perovskite Perovskite solar cells Perovskite solar cells Stability Stability Starch Starch

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GB/T 7714 Wang, Yunpeng , Xiao, Yaoming , Wang, Lidan et al. Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex [J]. | Journal of Power Sources , 2024 , 602 .
MLA Wang, Yunpeng et al. "Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex" . | Journal of Power Sources 602 (2024) .
APA Wang, Yunpeng , Xiao, Yaoming , Wang, Lidan , Su, Zisheng , Xu, Yunpeng , Fan, Liangbiao et al. Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex . | Journal of Power Sources , 2024 , 602 .
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Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex SCIE
期刊论文 | 2024 , 602 | JOURNAL OF POWER SOURCES
Enhanced fill factor and stability of perovskite solar cells with a multifunctional additive of starch-iodine complex Scopus
期刊论文 | 2024 , 602 | Journal of Power Sources
Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells EI
期刊论文 | 2024 , 675 , 761-771 | Journal of Colloid and Interface Science
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Abstract :

Among the various non-precious metal catalysts that drive hydrogen evolution reactions (HERs) and dye-sensitized solar cells (DSSCs), transition metal selenides (TMSs) stand out due to their unique electronic properties and tunable morphology. Herein, the multicomponent selenide CuSe-Co3Se4@VSe2 was successfully synthesized by doping with metal element vanadium and selenization on the copper-cobalt carbonate hydroxide (CuCo-CH) template. CuSe-Co3Se4@VSe2 exhibited the dandelion-like cluster structure composed of hollow nanotubes doped with VSe2 nanoparticles. Due to the unique structure and the synergistic effect of various elements, CuSe-Co3Se4@VSe2 showed excellent alkaline HER and DSSC performances. The DSSC based on CuSe-Co3Se4@VSe2 exhibited an impressive power conversion efficiency (PCE) of 9.64 %, which was much higher than that of Pt (8.39 %). Besides, it possessed a low HER overpotential of 76 mV@10 mA cm−2 and a small Tafel slope of 88.9 mV dec−1 in 1.0 M KOH. © 2024 Elsevier Inc.

Keyword :

Cobalt compounds Cobalt compounds Conversion efficiency Conversion efficiency Copper compounds Copper compounds Dye-sensitized solar cells Dye-sensitized solar cells Electronic properties Electronic properties Hydrogen Hydrogen Nanocatalysts Nanocatalysts Nanotubes Nanotubes Potassium hydroxide Potassium hydroxide Selenium compounds Selenium compounds Transition metals Transition metals

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GB/T 7714 Qian, Xing , Yu, Hao , Chen, Wenbin et al. Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells [J]. | Journal of Colloid and Interface Science , 2024 , 675 : 761-771 .
MLA Qian, Xing et al. "Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells" . | Journal of Colloid and Interface Science 675 (2024) : 761-771 .
APA Qian, Xing , Yu, Hao , Chen, Wenbin , Wu, Jianhua , Xia, Juan , Chen, Ming et al. Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells . | Journal of Colloid and Interface Science , 2024 , 675 , 761-771 .
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Dandelion-like VSe 2-embellished CuSe-Co 3 Se 4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells SCIE
期刊论文 | 2024 , 675 , 761-771 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
Dandelion-like VSe2-embellished CuSe-Co3Se4 hollow nanotube clusters as bifunctional catalysts for high-performance alkaline hydrogen evolution and solar cells Scopus
期刊论文 | 2024 , 675 , 761-771 | Journal of Colloid and Interface Science
Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution EI
期刊论文 | 2024 , 78 , 851-860 | International Journal of Hydrogen Energy
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Abstract :

At present, the exploration of renewable energy is a huge challenge, and water electrolysis is regarded as a promising method for producing hydrogen. However, the hydrogen evolution reaction (HER) has been hampered due to expensive Pt-based catalysts. Herein, the Fe2P-coated Ni2P/Co2P nanospheres with yolk-shelled structure were successfully synthesized according to a facile approach of doping transition metal elements and phosphating on the template Ni-Co nanospheres, successively. All samples were tested as HER catalysts at various pH environments. The results showed that the Fe2P-Ni2P/Co2P possesses superior electrocatalytic ability and good stability. The Fe2P-Ni2P/Co2P achieved the lower ηonset (overpotential at 1.0 mA cm−2) of 36.6, 64.2, and 65.9 mV, η10 (overpotential at 10 mA cm−2) of 89.7, 125, and 212 mV, and Tafel slopes of 48.0, 60.3, and 135 mV dec−1 in acidic, alkaline, and neutral solutions, respectively, exhibiting an excellent electrocatalytic activity of the multicomponent phosphides for HER. © 2024 Hydrogen Energy Publications LLC

Keyword :

Alkalinity Alkalinity Binary alloys Binary alloys Cobalt alloys Cobalt alloys Cobalt compounds Cobalt compounds Electrocatalysts Electrocatalysts Electrolysis Electrolysis Hydrogen production Hydrogen production Nanospheres Nanospheres Phosphorus compounds Phosphorus compounds Transition metals Transition metals

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GB/T 7714 Chen, Wenbin , Chen, Siyan , Guo, Ming et al. Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution [J]. | International Journal of Hydrogen Energy , 2024 , 78 : 851-860 .
MLA Chen, Wenbin et al. "Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution" . | International Journal of Hydrogen Energy 78 (2024) : 851-860 .
APA Chen, Wenbin , Chen, Siyan , Guo, Ming , Jiang, Xiancai , Xia, Juan , Chen, Ming et al. Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution . | International Journal of Hydrogen Energy , 2024 , 78 , 851-860 .
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Fe2 P-coated Ni2 P/Co2 P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution SCIE
期刊论文 | 2024 , 78 , 851-860 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution Scopus
期刊论文 | 2024 , 78 , 851-860 | International Journal of Hydrogen Energy
Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries Scopus
期刊论文 | 2024 , 230 | Carbon
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Abstract :

Fe3N nanocrystals embedded in cracked N-doped carbon nanotubes (Fe3N@NCNT) with a cowpea-like shape are innovatively prepared by metal-catalyzed graphitization and nitridization processes based on melamine and FeC2O4 precursor. The new in-situ synthesis strategy is proved to be effective to open the NCNT using a migratory metal carbide nanocatalyst via expansion effect and fabricate a metal nitride embedded NCNT with fully active ingredients. The detailed tip-growth mechanism of cracked NCNT with latitudinal-longitudinal graphene layers is studied by in-situ XRD analysis of the phase evolution of melamine and FeC2O4, and ex-situ SEM/TEM investigation of the topography correlation of NCNT and Fe3C floating catalyst. The Fe3N@NCNT microclews based anodes have a moderate carbon content of 35.45 wt%, electroactive NCNT conductive network, abundant microcracks and an open short-cavity system, showing a stable discharge capacity of 667 mAh g−1 at 0.1C, outstanding rate capability of 448 mAh g−1 at 5C and remarkable long-term cycling stability of 546 mAh g−1 after 600 cycles at 1C. The combined good electronic/ionic conductivity of cracked NCNT and robust mechanical stability of geometrically confined Fe3N nanoparticles contribute to the excellent redox activities, stabilized solid-electrolyte-interphase film and cycling durability of Fe3N@NCNT. © 2024 Elsevier Ltd

Keyword :

Anodes Anodes Carbon nanotubes Carbon nanotubes Growth mechanism Growth mechanism Iron nitrides Iron nitrides Lithium-ion batteries Lithium-ion batteries

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GB/T 7714 Chen, M. , Liu, F.-M. , Zhao, M.-Y. et al. Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries [J]. | Carbon , 2024 , 230 .
MLA Chen, M. et al. "Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries" . | Carbon 230 (2024) .
APA Chen, M. , Liu, F.-M. , Zhao, M.-Y. , Qian, X. , Yuan, Z.-Y. , Wan, R. et al. Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries . | Carbon , 2024 , 230 .
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Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries SCIE
期刊论文 | 2024 , 230 | CARBON
Controllable synthesis and growth mechanism of cracked cowpea-like NCNT encapsulated with Fe3N nanoparticles for high-performance anode material in lithium-ion batteries EI
期刊论文 | 2024 , 230 | Carbon
One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices SCIE
期刊论文 | 2024 , 221 | EUROPEAN POLYMER JOURNAL
Abstract&Keyword Cite Version(2)

Abstract :

Conductive hydrogels have shown a great potential in the field of flexible electronics. However, it is difficult to combine high strength and high toughness in conductive hydrogels prepared by conventional methods, which limits their applications in various fields. In this work, we pioneered a facile and cost-effective strategy to prepare soy protein isolate/poly(vinyl alcohol) (SPI/PVA) conductive hydrogels with high strength, toughness, low- temperature resistance, and recyclability by introducing all the salts into the prescuor solution directly. To solve the problem of unable to directly introducing high concentration Na3Cit into the soy protein isolate/PVA solution, MgCl2 was used to alleviate the strong salting-out effect of Na3Cit. Thus the stable SPI/PVA/EG/MgCl2/ Na3Cit complex solution was obtained and the SPI/PVA/EG/MgCl2/Na3Cit (SPEMS) organohydrogel was prepared by the freezing/thawing process. The optimum tensile strength of the SPEMS organohydrogel was 1.1 +0.07 MPa, and the elongation at break was 701.3+23.67 %, respectively. Meanwhile, the ionic conductivity of the organohydrogel was as high as 1.7+0.01 S/m. Finally, the EG/H2O binary solvent system endowed the organohydrogel with excellent low-temperature resistance (freezing point of-19.4 degrees C). The strain sensors assembled with SPEMS organohydrogels were characterized by high sensitivity (GF = 3.2, strain range from 20 %-500 %) and long-term stability. The flexible all-solid-state supercapacitor assembled with SPEMS organohydrogel as the electrolyte and activated carbon as the electrodes has a high area specific capacitance (113.76 mF/cm2) and good cycling stability (capacitance retention of 81.62 % after 1,000 charging and discharging cycles) at room temperature.

Keyword :

Hofmeister effect Hofmeister effect One-pot preparation One-pot preparation Poly(vinyl alcohol) Poly(vinyl alcohol) Soy protein isolate Soy protein isolate Strain sensor Strain sensor

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GB/T 7714 Hu, Mingqiang , Deng, Yingxue , Qian, Xing et al. One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices [J]. | EUROPEAN POLYMER JOURNAL , 2024 , 221 .
MLA Hu, Mingqiang et al. "One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices" . | EUROPEAN POLYMER JOURNAL 221 (2024) .
APA Hu, Mingqiang , Deng, Yingxue , Qian, Xing , Ye, Dezhan , Jiang, Xiancai , Xiao, Gao . One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices . | EUROPEAN POLYMER JOURNAL , 2024 , 221 .
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One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices Scopus
期刊论文 | 2024 , 221 | European Polymer Journal
One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices EI
期刊论文 | 2024 , 221 | European Polymer Journal
MOFs-derived bifunctional Ni-Fe-Mo sulfide electrode catalysts with hollow bipyramidal structures for efficient photovoltaics and hydrogen generation SCIE
期刊论文 | 2023 , 437 | ELECTROCHIMICA ACTA
WoS CC Cited Count: 7
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Abstract :

The effective improvements in structure and composition are critical to the performances of inexpensive elec-trocatalysts based on transition metal chalcogenides (TMCs), especially in dye-sensitized solar cell (DSSC) and hydrogen evolution reaction (HER), which will be an ongoing challenge. Herein, a novel method of forming Ni-Fe-Mo sulfide composite electrocatalyst (denoted as Ni-Fe-MoSx) by adding molybdenum element when modi-fying the active sites on the surface of Ni-Fe layered double hydroxide (Ni-Fe LDH) was proposed and studied. Beginning with MIL-88A (Fe), Ni-Fe LDH was prepared by the hydrolysis of nickel and iron ions in alkaline solution, and then vulcanized by ammonium tetrathiomolybdate to synthesize Ni-Fe-MoSx electrocatalyst with hollow bipyramidal structure and rich active sites on the modified surface. Benefiting from the advantages of hollow construction and the enhanced intrinsic activity of more active sites, Ni-Fe-MoSx electrode delivered an outstanding power conversion efficiency (PCE) of 9.37% in DSSC. Accompanying with a low onset potential of 30.4 mV, its stability in acid HER could maintain well over long periods of time. The successful implementation of the scheme is expected to provide a novel avenue for synthesizing bifunctional electrocatalysts based on TMCs.

Keyword :

Bifunctional electrocatalyst Bifunctional electrocatalyst Dye-sensitized solar cell Dye-sensitized solar cell Hollow bipyramidal structure Hollow bipyramidal structure Hydrogen evolution reaction Hydrogen evolution reaction Ni-Fe-MoSx Ni-Fe-MoSx

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GB/T 7714 Qian, Xing , Chen, Wenbin , Yang, Jiahui et al. MOFs-derived bifunctional Ni-Fe-Mo sulfide electrode catalysts with hollow bipyramidal structures for efficient photovoltaics and hydrogen generation [J]. | ELECTROCHIMICA ACTA , 2023 , 437 .
MLA Qian, Xing et al. "MOFs-derived bifunctional Ni-Fe-Mo sulfide electrode catalysts with hollow bipyramidal structures for efficient photovoltaics and hydrogen generation" . | ELECTROCHIMICA ACTA 437 (2023) .
APA Qian, Xing , Chen, Wenbin , Yang, Jiahui , Chen, Siyan , Guan, Guoxiang . MOFs-derived bifunctional Ni-Fe-Mo sulfide electrode catalysts with hollow bipyramidal structures for efficient photovoltaics and hydrogen generation . | ELECTROCHIMICA ACTA , 2023 , 437 .
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MOFs-derived bifunctional Ni-Fe-Mo sulfide electrode catalysts with hollow bipyramidal structures for efficient photovoltaics and hydrogen generation EI
期刊论文 | 2023 , 437 | Electrochimica Acta
MOFs-derived bifunctional Ni-Fe-Mo sulfide electrode catalysts with hollow bipyramidal structures for efficient photovoltaics and hydrogen generation Scopus
期刊论文 | 2023 , 437 | Electrochimica Acta
Low-temperature metal-catalyzed synthesis of encapsulated metal oxide nanoparticles in nitrogen-doped carbon nanotubes from carbon nitride as anodic materials of high-performance lithium-ion batteries SCIE
期刊论文 | 2023 , 47 (7) , 3215-3221 | NEW JOURNAL OF CHEMISTRY
WoS CC Cited Count: 7
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Abstract :

Metal oxides have been considered as a promising anode material for lithium ion batteries (LIBs) due to their high theoretical capacities, low cost, natural abundance and environmental friendliness. However, the severe volume expansion upon cycling and poor conductivity limit their cycling stability and rate capability. To address this issue, Co3O4 and NiO nanoparticles encapsulated at the endpoints of nitrogen-doped carbon nanotube (NCNT) hybrids are designed and prepared by a metal catalyzed graphitization-nitridization driven tip-growth process and the subsequent oxidation in air, using (carbon nitride) C3N4 as a new solid-state carbon and nitrogen source. When used as an anode material for LIBs, the representative Co3O4@NCNT hybrid exhibits a high capacity of 1002 mA h g(-1) at 100 mA g(-1), an excellent rate capability of 673 mA h g(-1) at 5.0 A g(-1) and remarkable cycling stability of 837 mA h g(-1) after 800 cycles at 1 A g(-1), which are much superior to those of the Co3O4/CB control sample. The outstanding electrochemical performances of MxOy@NCNTs are due to their unique nanoarchitecture, which offers a porous conductive matrix for effective electron-ion transport and forms carbon nanocap confined MxOy nanoparticles as well as stress buffer nanocavities for robust structural stability during lithiation/delithiation processes. The results may pave a way for the rational structural design of high-performance metal oxide-based anode materials for next-generation LIBs.

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GB/T 7714 Chen, Ming , Liu, Feng-Ming , Chen, Shan-Shuai et al. Low-temperature metal-catalyzed synthesis of encapsulated metal oxide nanoparticles in nitrogen-doped carbon nanotubes from carbon nitride as anodic materials of high-performance lithium-ion batteries [J]. | NEW JOURNAL OF CHEMISTRY , 2023 , 47 (7) : 3215-3221 .
MLA Chen, Ming et al. "Low-temperature metal-catalyzed synthesis of encapsulated metal oxide nanoparticles in nitrogen-doped carbon nanotubes from carbon nitride as anodic materials of high-performance lithium-ion batteries" . | NEW JOURNAL OF CHEMISTRY 47 . 7 (2023) : 3215-3221 .
APA Chen, Ming , Liu, Feng-Ming , Chen, Shan-Shuai , Qian, Xing , Zhao, Yi-Jing , Sun, Yan et al. Low-temperature metal-catalyzed synthesis of encapsulated metal oxide nanoparticles in nitrogen-doped carbon nanotubes from carbon nitride as anodic materials of high-performance lithium-ion batteries . | NEW JOURNAL OF CHEMISTRY , 2023 , 47 (7) , 3215-3221 .
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Low-temperature metal-catalyzed synthesis of encapsulated metal oxide nanoparticles in nitrogen-doped carbon nanotubes from carbon nitride as anodic materials of high-performance lithium-ion batteries EI
期刊论文 | 2023 , 47 (7) , 3215-3221 | New Journal of Chemistry
Low-temperature metal-catalyzed synthesis of encapsulated metal oxide nanoparticles in nitrogen-doped carbon nanotubes from carbon nitride as anodic materials of high-performance lithium-ion batteries Scopus
期刊论文 | 2023 , 47 (7) , 3215-3221 | New Journal of Chemistry
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