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学者姓名：冯亚南
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Abstract ：
As a class of emerging photoluminescent materials, hybrid halide crystals have drawn research attention for their potential application in the fields of light-emitting, security, and waveguide. Nevertheless, hybrid halide crystals containing antimony with long-term stability and tunable light emission are still increasingly in demand. In this work, serial new hybrid halide crystals (BZA)(2)ZnCl42H(2)O:xSb(3+) (x = 0-0.2, x represents the reaction ratio) and (BZA)(2)SbCl5 are synthesized (BZA = 2,4-diamino-6-phenyl-1,3,5-triazine). In (BZA)(2)ZnCl42H(2)O:xSb(3+) crystals, Sb3+ cations replace partial Zn2+ cations to form [SbCl4](-) tetrahedron. Red light emission caused by the substitution of Sb3+ for Zn2+ enhances as the doping rate increases, resulting in the tunable emission from light blue to pink and finally to dark red. There are two kinds of Sb3+ in (BZA)(2)SbCl5 crystal. Sb(1) has a sixfold coordination with Cl to form a [Sb(1)Cl-5]infinity 1D zigzag chain. Sb(2) atom adopts a fivefold coordination with Cl and is separated from each other by BZA(+) cations. (BZA)(2)SbCl5 crystal shows bright orange-yellow light emission with a photoluminescence quantum yield of 45%. Moreover, the organic-inorganic hybrid metal halide crystals containing antimony have excellent long-term stability, with phase and luminescence keeping nearly unchanged after more than six months in ambient air.
Keyword ：
hybrid halide crystals hybrid halide crystals Sb3+ Sb3+ stability stability tunable light emission tunable light emission
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| GB/T 7714 | Zhang, Yaqing , Jiang, Yan , Zhang, Qi et al. Antimony Doped Hybrid Zinc Halide Crystals with Tunable Light Emission and Long-Term Stability [J]. | ADVANCED OPTICAL MATERIALS , 2024 , 12 (12) . |
| MLA | Zhang, Yaqing et al. "Antimony Doped Hybrid Zinc Halide Crystals with Tunable Light Emission and Long-Term Stability" . | ADVANCED OPTICAL MATERIALS 12 . 12 (2024) . |
| APA | Zhang, Yaqing , Jiang, Yan , Zhang, Qi , Liu, Qingyi , Guo, Weiping , Zhang, Wei et al. Antimony Doped Hybrid Zinc Halide Crystals with Tunable Light Emission and Long-Term Stability . | ADVANCED OPTICAL MATERIALS , 2024 , 12 (12) . |
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As an important interaction among organic cations containing aromatic rings, the pi-pi stacking interaction is a crucial factor determining the crystal structure of organic-inorganic hybrid metal halides (OIMHs). However, the relationship between pi-pi interaction and optical properties of luminescent OIMHs is yet to be studied. (C10H10N2)Cd1-xZnxCl4 (23-Cd1-xZnxCl4) crystals with 0D structures are synthesized by using optically active 2,3 '-bipyridine as the organic ligand. When x <= 0.2, there is no pi-pi interaction among 2,3 '-bipyridinium cations in 23-Cd1-xZnxCl4 crystals. When x > 0.2, pi-pi interaction among organic cations occurs and enhances as the Zn2+ content increases. The tailoring of the pi-pi interaction endows 23-Cd1-xZnxCl4 with tunable light emitting properties, resulting in a broad band emission involving blue and orange species. The blue emission dominates when there is no pi-pi interaction, while the orange emission enhances and finally becomes dominant as the strength of pi-pi interaction increases. The pi-pi interaction promotes the energy transfer from the higher energy valley to the lower one of the S-1 state of the organic cation, resulting in the enhancement of orange emission. Notably, the 23-ZnCl crystal exhibits a photo-luminescence quantum yield (PLQY) of 32%. This is the highest reported value to date among the Zn-based OIMHs, which have optical emission originating from the organic component. The mechanism of pi-pi stacking induced tunable light emission revealed in our work provides new guidance for the design of luminescent OIMHs.
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| GB/T 7714 | Zhang, Qi , Lin, Xinyi , Guo, Shanji et al. Tailoring the π-π stacking interaction among organic cations in hybrid metal halide crystals towards tunable light emission [J]. | JOURNAL OF MATERIALS CHEMISTRY C , 2024 , 12 (19) : 7053-7061 . |
| MLA | Zhang, Qi et al. "Tailoring the π-π stacking interaction among organic cations in hybrid metal halide crystals towards tunable light emission" . | JOURNAL OF MATERIALS CHEMISTRY C 12 . 19 (2024) : 7053-7061 . |
| APA | Zhang, Qi , Lin, Xinyi , Guo, Shanji , Zhang, Yaqing , Jiang, Yan , Zhang, Wei et al. Tailoring the π-π stacking interaction among organic cations in hybrid metal halide crystals towards tunable light emission . | JOURNAL OF MATERIALS CHEMISTRY C , 2024 , 12 (19) , 7053-7061 . |
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Beyond traditional paper, multifunctional nanopaper has received much attention in recent years. Currently, many nanomaterials have been successfully used as building units of nanopaper. However, it remains a great challenge to prepare flexible and freestanding metal-organic framework (MOF) nanopaper owing to the low aspect ratio and brittleness of MOF nanocrystals. Herein, this work develops a flexible and free-standing MOF nanopaper with MOF nanowires as building units. The manganese-based MOF (Mn-MOF) nanowires with lengths up to 100 mu m are synthesized by a facile solvothermal method. Through a paper-making technique, the Mn-MOF nanowires interweave with each other to form a three-dimensional architecture, thus creating a flexible and free-standing Mn-MOF nanowire paper. Furthermore, the surface properties can be engineered to obtain high hydrophobicity by modifying polydimethylsiloxane (PDMS) on the surfaces of the Mn-MOF nanowire paper. The water contact angle reaches 130 degrees. As a proof of concept, this work presents two potential applications of the Mn-MOF/PDMS nanowire paper: (i) The as-prepared Mn-MOF/PDMS nanowire paper is compatible with a commercial printer. The as-printed colorful patterns are of high quality, and (ii) benefiting from the highly hydrophobic surfaces, the Mn-MOF/PDMS nanowire paper is able to efficiently separate oil from water.
Keyword ：
flexible flexible free-standing free-standing metal-organic frameworks metal-organic frameworks nanopaper nanopaper nanowires nanowires
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| GB/T 7714 | Yang, Yong , Yang, Zhe , Zhuang, Guoxin et al. Flexible and Free-Standing Metal-Organic Framework Nanowire Paper [J]. | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (23) : 30306-30313 . |
| MLA | Yang, Yong et al. "Flexible and Free-Standing Metal-Organic Framework Nanowire Paper" . | ACS APPLIED MATERIALS & INTERFACES 16 . 23 (2024) : 30306-30313 . |
| APA | Yang, Yong , Yang, Zhe , Zhuang, Guoxin , Feng, Ya-Nan , Chen, Fei-Fei , Yu, Yan . Flexible and Free-Standing Metal-Organic Framework Nanowire Paper . | ACS APPLIED MATERIALS & INTERFACES , 2024 , 16 (23) , 30306-30313 . |
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Two-dimension nanosheets are ideal photocatalysts for CO2 reduction due to their high exposure of active sites and short charge transfer pathway. However, 2D photocatalysts have a tendency to agglomeration, thus compromising the performance of photocatalytic CO2 reduction. Trees, one of the most important plants for photosynthesis, have a unique “leaf-on-branch” structure. This unique two-dimension/one-dimension (2D/1D) configuration maximizes the adsorption of CO2 molecules and light harvesting. Herein, a tree-inspired semiconductor-on-ceramic 2D/1D heterostructure for efficient photocatalytic CO2 reduction is reported. The cobalt silicate (CoSi) nanosheets (∼0.68 nm) are in situ grown on the surfaces of hydroxyapatite (HAP) nanowires, creating a well-defined 2D/1D hierarchical structure. The vertical alignment of ultrathin CoSi nanosheets on the HAP nanowires effectively suppresses their agglomeration, leading to a large BET surface area (106.45 m2/g) and excellent CO2 adsorption (8.00 cm3 g−1). The results of photoelectrochemical characterization demonstrate that the 2D/1D hierarchical structure is powerful to expedite charge transfer. As a result, the gas generation rate of CO is as high as 28780 μmol g−1 h−1 over the CoSi-on-HAP 2D/1D heterostructure. In addition, the electron transfer mechanism and reaction pathways of CO2 reduction are revealed by in situ irradiated XPS and in situ DRIFT spectra. © 2024 Elsevier B.V.
Keyword ：
CO2 reduction CO2 reduction Heterostructure Heterostructure Hydroxyapatite nanowires Hydroxyapatite nanowires Photocatalysis Photocatalysis Silicate nanosheets Silicate nanosheets
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| GB/T 7714 | Hu, Y. , Zhu, Y. , He, X. et al. Tree-inspired semiconductor-on-ceramic 2D/1D heterostructure for efficient CO2 photoreduction [J]. | Applied Surface Science , 2024 , 672 . |
| MLA | Hu, Y. et al. "Tree-inspired semiconductor-on-ceramic 2D/1D heterostructure for efficient CO2 photoreduction" . | Applied Surface Science 672 (2024) . |
| APA | Hu, Y. , Zhu, Y. , He, X. , Feng, Y.-N. , Chen, F.-F. , Yu, Y. . Tree-inspired semiconductor-on-ceramic 2D/1D heterostructure for efficient CO2 photoreduction . | Applied Surface Science , 2024 , 672 . |
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An S-scheme nanoparticle heterojunction of Co3O4-TiO2/C has been designed to enhance CO2 adsorption and accelerate interfacial electron transfer, thereby boosting photocatalytic CO2 reduction. Co2+-loaded MXene nanosheets are used as a single precursor for in situ confined growth of Co3O4-TiO2/C. The in situ confined growth of the nanoparticle heterojunction enables good particle dispersion and a small particle size, which makes the surface and active sites highly exposed and accessible for CO2 molecules. In addition, p-type Co3O4 and n type TiO2 build an S-scheme heterojunction. As a result, the Co3O4-TiO2/C nanoparticle heterojunction exhibits a higher specific surface area, larger CO2 adsorption capacity, and faster charge transfer compared to pure Co3O4 and TiO2/C. The gas generation rate over Co3O4-TiO2/C is as high as 33.21 mmol g-1 h-1, which is 8.34 and 1.69 times higher than that of pure TiO2/C and Co3O4, respectively. 3 h photocatalysis affords a remarkable turnover number of 15.53 that is comparable to state-of-the-art photocatalysts.
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| GB/T 7714 | Liu, Haibing , Chen, Kaihang , Feng, Ya-Nan et al. In Situ Confined Growth of Co3O4-TiO2/C S-Scheme Nanoparticle Heterojunction for Boosted Photocatalytic CO2 Reduction [J]. | JOURNAL OF PHYSICAL CHEMISTRY C , 2023 , 127 (11) : 5289-5298 . |
| MLA | Liu, Haibing et al. "In Situ Confined Growth of Co3O4-TiO2/C S-Scheme Nanoparticle Heterojunction for Boosted Photocatalytic CO2 Reduction" . | JOURNAL OF PHYSICAL CHEMISTRY C 127 . 11 (2023) : 5289-5298 . |
| APA | Liu, Haibing , Chen, Kaihang , Feng, Ya-Nan , Zhuang, Zanyong , Chen, Fei-Fei , Yu, Yan . In Situ Confined Growth of Co3O4-TiO2/C S-Scheme Nanoparticle Heterojunction for Boosted Photocatalytic CO2 Reduction . | JOURNAL OF PHYSICAL CHEMISTRY C , 2023 , 127 (11) , 5289-5298 . |
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Cobalt-based catalysts are ideal for CO2 reduction reaction (CO2RR) due to the strong binding and efficient activation of CO2 molecules on cobalt. However, cobalt-based catalysts also show low free energy of hydrogen evolution reaction (HER), making HER competitive with CO2RR. Therefore, how to improve the product selectivity of CO2RR while maintaining the catalytic efficiency is a great challenge. Here, this work demonstrates the critical roles of the rare earth (RE) compounds (Er2O3 and ErF3) in regulating the activity and selectivity of CO2RR on cobalt. It is found that the RE compounds not only promote charge transfer but also mediate the reaction paths of CO2RR and HER. Density functional theory calculations verify that the RE compounds lower the energy barrier of *CO -> CO conversion. On the other hand, the RE compounds increase the free energy of HER, which leads to the suppression of HER. As a result, the RE compounds (Er2O3 and ErF3) improve the CO selectivity of cobalt from 48.8 to 69.6%, as well as significantly increase the turnover number by a factor of over 10.
Keyword ：
CO2 reduction CO2 reduction cobalt cobalt metal-organic frameworks metal-organic frameworks photocatalysts photocatalysts rare earth rare earth
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| GB/T 7714 | Sun, Yakun , Li, Long , Li, Xinxu et al. Regulating Activity and Selectivity of Photocatalytic CO2 Reduction on Cobalt by Rare Earth Compounds [J]. | ACS APPLIED MATERIALS & INTERFACES , 2023 , 15 (13) : 16621-16630 . |
| MLA | Sun, Yakun et al. "Regulating Activity and Selectivity of Photocatalytic CO2 Reduction on Cobalt by Rare Earth Compounds" . | ACS APPLIED MATERIALS & INTERFACES 15 . 13 (2023) : 16621-16630 . |
| APA | Sun, Yakun , Li, Long , Li, Xinxu , Feng, Ya-Nan , Chen, Fei-Fei , Li, Lingyun et al. Regulating Activity and Selectivity of Photocatalytic CO2 Reduction on Cobalt by Rare Earth Compounds . | ACS APPLIED MATERIALS & INTERFACES , 2023 , 15 (13) , 16621-16630 . |
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Multi-wavelength lasers, especially the triple-wavelength laser around 1060 nm, could be produced by the F-4(3/2) -> I-4(11/2) transition of Nd3+ and present numerous challenges and opportunities in the field of optoelectronics. The Nd3+-doped high-temperature phase of LaBSiO5 (beta-LBSO) is an ideal crystal to produce triple-wavelength lasers; however, the crystal growth is challenging because of the phase transition from beta-LBSO to low-temperature phase (alpha-LBSO) at 162 degrees C. This phase transition is successfully suppressed when the doping content of Nd3+ is larger than 6.3 at. %, and the Nd3+-doped beta-LBSO is stable at room temperature. The local disorder of BO4 tetrahedra due to Nd3+ doping is essential to the stabilization of beta-LBSO. For the first time, the beta-LBSO:8%Nd3+ crystal with a dimension of 1.8 x 1.8 x 1.8 cm(3) is obtained through the top-seeded solution method. The crystal shows strong optical absorption in the range of 785-815 nm, matching well with the commercial laser diode pumping source. The optical emission of F-4(3/2) -> I-4(11/2) splits into four peaks with the highest optical emission cross section of 2.14 x 10(-20) cm(2) at 1068 nm. The continuous-wave triple-wavelength generation of coherent light at 1047, 1071, and 1092 nm is achieved with the highest output power of 235 mW and efficiency of 12.1%.
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| GB/T 7714 | Li, Lingyun , Huang, Fazheng , Shi, Yi et al. Triple-Wavelength Lasing with a Stabilized beta-LaBSiO5:Nd3+ Crystal [J]. | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2022 . |
| MLA | Li, Lingyun et al. "Triple-Wavelength Lasing with a Stabilized beta-LaBSiO5:Nd3+ Crystal" . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022) . |
| APA | Li, Lingyun , Huang, Fazheng , Shi, Yi , Luo, Zhong-Zhen , Wang, Guo-Qiang , Li, Xin-Xiong et al. Triple-Wavelength Lasing with a Stabilized beta-LaBSiO5:Nd3+ Crystal . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2022 . |
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The metal/carbon composites prepared by direct pyrolysis of metal-organic frameworks (MOFs) are regarded as ideal catalysts. However, conventional MOFs show a three-dimensional bulk structure. For bulk MOF-derived catalysts, most active metal sites are confined in the interior and not fully utilized. In this work, metal-organic monolayers (MOLs) are used as the starting precursors to prepare carbon-wrapped metal nanoparticles, which are further employed as catalysts for photocatalytic CO2 reduction. The as-prepared Ni-MOLs and Co-MOLs have an ultrathin thickness of similar to 1 nm. It is interestingly found that their derived Ni@C and Co@C nanoparticles are highly dispersive and connected with each other like a piece of paper. As compared with bulk MOF-derived counterparts, MOL-derived catalysts increase the accessibility of active metal sites, which can accelerate electron transfer from photosensitizers to Ni@C and Co@C nanoparticles. In this way, the catalytic activity can be greatly improved. Besides, the magnetic nature of Ni@C and Co@ C nanoparticles enables the easy separation and recycling of catalysts. It is expected that this work will provide instructive guidelines for the rational design of MOL-derived catalysts.
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| GB/T 7714 | Zhou, Linghao , Chen, Fei-Fei , Chen, Jianfeng et al. Highly Dispersive Ni@C and Co@C Nanoparticles Derived from Metal-Organic Monolayers for Enhanced Photocatalytic CO2 Reduction [J]. | INORGANIC CHEMISTRY , 2021 , 60 (14) : 10738-10748 . |
| MLA | Zhou, Linghao et al. "Highly Dispersive Ni@C and Co@C Nanoparticles Derived from Metal-Organic Monolayers for Enhanced Photocatalytic CO2 Reduction" . | INORGANIC CHEMISTRY 60 . 14 (2021) : 10738-10748 . |
| APA | Zhou, Linghao , Chen, Fei-Fei , Chen, Jianfeng , Feng, Ya-Nan , Li, Lingyun , Yu, Yan . Highly Dispersive Ni@C and Co@C Nanoparticles Derived from Metal-Organic Monolayers for Enhanced Photocatalytic CO2 Reduction . | INORGANIC CHEMISTRY , 2021 , 60 (14) , 10738-10748 . |
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An efficient photocatalytic CO2 reduction has been reported in ZIF-67-derived-Co nanoparticles (NPs) encapsulated in nitrogen-doped carbon layers (N-C/Co). This work demonstrates that the pyrolysis temperature is crucial in tuning the grain size and components of metallic Co-0 of N-C/Co composite catalysts, which optimizes their photocatalytic activities. Syntheses were conducted at 600, 700, and 800 degrees C giving the N-C/Co-600, N-C/Co-700, and N-C/Co-800 samples, respectively. N-C layers can well wrap the Co NPs obtained at a low pyrolysis temperature (600 degrees C) owing to their smaller grains than those of other samples. A high metallic Co-0 content in the N-C/Co-600 sample can be attributed to the effective inhibition of surface oxidation. By contrast, the surface CoOx oxides in the N-C/Co-700 and N-C/Co-800 samples cover inside Co cores, inhibiting charge separation and transfer. As a result, the N-C/Co-600 sample yields the best photocatalytic activity. The carbon monoxide and hydrogen generation rates are as high as 1.62 x 10(4) and 2.01 x 10(4) mu mol g(-1) h(-1), respectively. Additionally, the Co NPs make composite catalysts magnetic, enabling rapid and facile recovery of catalysts with the assistance of an external magnetic field. This work is expected to provide an instructive guideline for designing metal-organic framework-derived carbon/metal composite catalysts.
Keyword ：
CO2 reduction CO2 reduction Co nanoparticles Co nanoparticles N-doped C N-doped C photocatalysis photocatalysis ZIF-67 ZIF-67
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| GB/T 7714 | Chen, Fei-Fei , Chen, Jianfeng , Feng, Ya-Nan et al. Controlling metallic Co-0 in ZIF-67-derived N-C/Co composite catalysts for efficient photocatalytic CO2 reduction [J]. | SCIENCE CHINA-MATERIALS , 2021 , 65 (2) : 413-421 . |
| MLA | Chen, Fei-Fei et al. "Controlling metallic Co-0 in ZIF-67-derived N-C/Co composite catalysts for efficient photocatalytic CO2 reduction" . | SCIENCE CHINA-MATERIALS 65 . 2 (2021) : 413-421 . |
| APA | Chen, Fei-Fei , Chen, Jianfeng , Feng, Ya-Nan , Li, Lingyun , Yu, Yan . Controlling metallic Co-0 in ZIF-67-derived N-C/Co composite catalysts for efficient photocatalytic CO2 reduction . | SCIENCE CHINA-MATERIALS , 2021 , 65 (2) , 413-421 . |
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Cellulose fiber (CF) paper is a low-cost, sustainable, and flexible substrate, which has gained increasing interest recently. Before practical usage, the functionalization of the pristine CF paper is indispensable to meet requirements of specific applications. Different from conventional surface modification or physical mixing methods, we report in situ growth of ultralong hydroxyapatite nanowires (HAPNWs) with lengths larger than 10 mu m on the CF paper. HAPNWs are radially aligned on the surface of CFs, creating a micro/nanoscale hierarchical structure. By means of the excellent ion exchange ability of HAP and the hierarchical structure, the functions of the CF paper can be easily customized. As a proof-of-concept, we demonstrate two kinds of functional CF paper: (1) the photoluminescent CF paper by doping Eu3+ and Tb3+ ions into the crystal lattice of HAPNWs and (2) the superhydrophobic CF paper by coating poly(dimethylsiloxane) on the HAPNW hierarchical structure, which can be applied for self-cleaning and oil/water separation. It is expected that an in situ growth of ultralong HAPNWs will provide an instructive guideline for designing a CF paper with specific functions.
Keyword ：
cellulose fiber cellulose fiber hydroxyapatite hydroxyapatite nanowires nanowires paper paper photoluminescence photoluminescence superhydrophobic superhydrophobic
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| GB/T 7714 | Chen, Fei-Fei , Dai, Zi-Hao , Feng, Ya-Nan et al. Customized Cellulose Fiber Paper Enabled by an In Situ Growth of Ultralong Hydroxyapatite Nanowires [J]. | ACS NANO , 2021 , 15 (3) : 5355-5365 . |
| MLA | Chen, Fei-Fei et al. "Customized Cellulose Fiber Paper Enabled by an In Situ Growth of Ultralong Hydroxyapatite Nanowires" . | ACS NANO 15 . 3 (2021) : 5355-5365 . |
| APA | Chen, Fei-Fei , Dai, Zi-Hao , Feng, Ya-Nan , Xiong, Zhi-Chao , Zhu, Ying-Jie , Yu, Yan . Customized Cellulose Fiber Paper Enabled by an In Situ Growth of Ultralong Hydroxyapatite Nanowires . | ACS NANO , 2021 , 15 (3) , 5355-5365 . |
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