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学者姓名:刘哲源

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A halide-oxide composite solid-state electrolyte for enhancing ionic conductivity by promoting interfacial healing through low-temperature heat treatment SCIE
期刊论文 | 2025 | JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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Abstract :

An ideal solid-state electrolyte needs to combine the properties of high ionic conductivity, wide electrochemical stability window, high electrode-electrolyte chemical compatibility, and low cost. Composite solid-state electrolyte is one of the feasible ways to solve this problem. In this work, a composite solid-state electrolyte Li2ZnSiO4 (LZSO)/ LiAlCl4 is reported. The low melting-point LiAlCl4 is introduced to solve the interfacial impedance problem of LZSO solid-state electrolyte due to the hardness of the particles. The structure and electrochemical properties of the two compositions were also characterized, and the effects of different composite ratios on the ionic conductivity of the composite solid-state electrolyte and the low-temperature healing surface structure on the performance enhancement were investigated. The optimal ratio LZSO/LiAlCl4 (7:3) exhibits good interfacial contactness and an ionic conductivity of 1.65 x 10(-4) S cm(-1) at 60 degrees C as well as a low activation energy of 0.31 eV. The assembled lithium symmetric batteries were stably cycled up to 750 h. Compared with the single component of LZSO, which cannot satisfy the full-cell assembly, Li/LFP batteries assembled with composite solid-state electrolytes exhibit good cycling performance.

Keyword :

Interfacial healing Interfacial healing Li2ZnSiO4 Li2ZnSiO4 LiAlCl4 LiAlCl4 Solid-state lithium metal batteries Solid-state lithium metal batteries

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GB/T 7714 Xu, Chenyuan , Chao, Yu , Yang, Sisheng et al. A halide-oxide composite solid-state electrolyte for enhancing ionic conductivity by promoting interfacial healing through low-temperature heat treatment [J]. | JOURNAL OF SOLID STATE ELECTROCHEMISTRY , 2025 .
MLA Xu, Chenyuan et al. "A halide-oxide composite solid-state electrolyte for enhancing ionic conductivity by promoting interfacial healing through low-temperature heat treatment" . | JOURNAL OF SOLID STATE ELECTROCHEMISTRY (2025) .
APA Xu, Chenyuan , Chao, Yu , Yang, Sisheng , Li, Borong , Yu, Yan , Xu, Xiaoming et al. A halide-oxide composite solid-state electrolyte for enhancing ionic conductivity by promoting interfacial healing through low-temperature heat treatment . | JOURNAL OF SOLID STATE ELECTROCHEMISTRY , 2025 .
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A halide-oxide composite solid-state electrolyte for enhancing ionic conductivity by promoting interfacial healing through low-temperature heat treatment Scopus
期刊论文 | 2025 | Journal of Solid State Electrochemistry
Z-Type Interstice Leap Migration Driving High Ionic Conductivity in Monoclinic LiBiBr4 Solid State Electrolyte SCIE
期刊论文 | 2025 , 21 (19) | SMALL
WoS CC Cited Count: 1
Abstract&Keyword Cite Version(1)

Abstract :

Halide solid electrolytes receive much attention due to their electrochemical properties, such as high ionic conductivity, oxidative stability, and ease of preparation. In this work, a bromide solid electrolyte LiBiBr4, exhibiting ease of processing and high ionic conductivity, is designed for the first time and investigated through a comparative investigation with monoclinic LiAlCl4 and LiAlBr4 for the migration path. The processing pressure for LiBiBr4 with annealing at 120 degrees C is less than one-tenth that of other chloride electrolytes (approximate to 5 MPa). Computational analyses unveil crucial mechanistic insights into the three migration mechanisms and the factors that influence them within the monoclinic structure. The distribution and distance of non-Li polyhedrons to the migration pathways are pivotal for the migration. The strategic positioning of the Bi polyhedron in LiBiBr4 is far from the Li+ pathway. The unique leap migration within the LiBiBr4 has a lower energy barrier and facilitates an interconnected migration that forms a 3D interstice network. This interconnected leap migration network within LiBiBr4 constitutes a Z-type interstice leap migration along the ab-axis. Thus, the LiBiBr4 obtains a high ionic conductivity of 0.19 mS cm(-1) with the 0.349 eV low activation energy. This discovery and research methods provide significant impetus and support for the development of halogen-based electrolytes.

Keyword :

LiBiBr4 LiBiBr4 lithium Ion batteries lithium Ion batteries migration path migration path solid-state electrolyte solid-state electrolyte

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GB/T 7714 Chao, Yu , Yang, Sisheng , Xu, Chenyuan et al. Z-Type Interstice Leap Migration Driving High Ionic Conductivity in Monoclinic LiBiBr4 Solid State Electrolyte [J]. | SMALL , 2025 , 21 (19) .
MLA Chao, Yu et al. "Z-Type Interstice Leap Migration Driving High Ionic Conductivity in Monoclinic LiBiBr4 Solid State Electrolyte" . | SMALL 21 . 19 (2025) .
APA Chao, Yu , Yang, Sisheng , Xu, Chenyuan , Li, Borong , Liu, Zheyuan , Fu, Xiaobin et al. Z-Type Interstice Leap Migration Driving High Ionic Conductivity in Monoclinic LiBiBr4 Solid State Electrolyte . | SMALL , 2025 , 21 (19) .
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Z-Type Interstice Leap Migration Driving High Ionic Conductivity in Monoclinic LiBiBr4 Solid State Electrolyte Scopus
期刊论文 | 2025 | Small
p-d orbital hybridization induced by CuGa2 promotes selective N2 electroreduction SCIE
期刊论文 | 2025 , 44 (1) | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
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Abstract :

In the quest to align with industrial benchmarks, a noteworthy gap remains in the field of electrochemical nitrogen fixation, particularly in achieving high Faradaic efficiency (FE) and yield. The electrocatalytic nitrogen fixation process faces considerable hurdles due to the difficulty in cleaving the highly stable NN triple bond. Additionally, the electrochemical pathway for nitrogen fixation is often compromised by the concurrent hydrogen evolution reaction (HER), which competes aggressively for electrons and active sites on the catalyst surface, thereby reducing the FE of nitrogen reduction reaction (NRR). To surmount these challenges, this study introduces an innovative bimetallic catalyst, CuGa2, synthesized through p-d orbital hybridization to selectively facilitate N2 electroreduction. This catalyst has demonstrated a remarkable NH3 yield of 9.82 mu g h-1 cm-2 and an associated FE of 38.25%. Our findings elucidate that the distinctive p-d hybridization interaction between Ga and Cu enhances NH3 selectivity by reducing the reaction energy barrier for hydrogenation and suppressing hydrogen evolution. This insight highlights the significance of p-d orbital hybridization in optimizing the electrocatalytic performance of CuGa2 for nitrogen fixation.

Keyword :

Bimetallic catalyst Bimetallic catalyst CuGa 2 alloy CuGa 2 alloy Electrochemical nitrogen fixation Electrochemical nitrogen fixation Liquid metals Liquid metals p -d orbital hybridization p -d orbital hybridization

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GB/T 7714 Chen, Bin , Zheng, Chaoyang , Shi, Dehuan et al. p-d orbital hybridization induced by CuGa2 promotes selective N2 electroreduction [J]. | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2025 , 44 (1) .
MLA Chen, Bin et al. "p-d orbital hybridization induced by CuGa2 promotes selective N2 electroreduction" . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY 44 . 1 (2025) .
APA Chen, Bin , Zheng, Chaoyang , Shi, Dehuan , Huang, Yi , Deng, Renxia , Wei, Yang et al. p-d orbital hybridization induced by CuGa2 promotes selective N2 electroreduction . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2025 , 44 (1) .
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Rational hierarchical micellar gel electrolytes with synergistic hydrophobic-hydrophilic integration for dendrite-free zinc-ion batteries SCIE
期刊论文 | 2025 , 13 (9) , 6709-6718 | JOURNAL OF MATERIALS CHEMISTRY A
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Abstract :

The uncontrolled dendritic growth and severe side reactions significantly constrain zinc-ion batteries' further application. This study presents a novel micellar gel electrolyte, innovatively designed through hydrophobic association. The micellar gel electrolyte harmonizes macroscopic and microscopic properties through a rational hierarchical design. At the macroscopic level, the hydrophilic domains as water-absorbing nets and the hydrophobic domains as pillars are intricately interwoven. On the microscopic scale, the copolymerization resulted in a microphase-separated architecture, with hydrophilic and hydrophobic domains establishing distinct micro-regions within the gel matrix. The hydrophilic domains contribute to the stabilization of the hydrogen bond network through amide groups, while the abundant carbonyl groups optimize the solvation structure and migration pathways of Zn2+. The hydrophobic domains provide a robust supporting framework while simultaneously reducing H2O activity and thereby minimizing parasitic reactions. Thus, the enhanced interfacial stability forms a robust and flexible barrier against dendrite formation. The rational hierarchical gel composition and cross-linked network effectively direct Zn deposition preferentially along the (002) plane, ensuring a uniform and stable interface. The assembled Zn & Vert;MnO2 batteries show 80% capacity retention after 1200 cycles at 1C.

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GB/T 7714 Chen, Zheming , Lin, Yushuang , Shi, Dehuan et al. Rational hierarchical micellar gel electrolytes with synergistic hydrophobic-hydrophilic integration for dendrite-free zinc-ion batteries [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (9) : 6709-6718 .
MLA Chen, Zheming et al. "Rational hierarchical micellar gel electrolytes with synergistic hydrophobic-hydrophilic integration for dendrite-free zinc-ion batteries" . | JOURNAL OF MATERIALS CHEMISTRY A 13 . 9 (2025) : 6709-6718 .
APA Chen, Zheming , Lin, Yushuang , Shi, Dehuan , Song, Kangwei , Luo, Jing , Qiu, Yanbin et al. Rational hierarchical micellar gel electrolytes with synergistic hydrophobic-hydrophilic integration for dendrite-free zinc-ion batteries . | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (9) , 6709-6718 .
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Rational hierarchical micellar gel electrolytes with synergistic hydrophobic-hydrophilic integration for dendrite-free zinc-ion batteries Scopus
期刊论文 | 2025 , 13 (9) , 6709-6718 | Journal of Materials Chemistry A
Rational hierarchical micellar gel electrolytes with synergistic hydrophobic-hydrophilic integration for dendrite-free zinc-ion batteries EI
期刊论文 | 2025 , 13 (9) , 6709-6718 | Journal of Materials Chemistry A
Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic-inorganic hybrid metal halide crystals SCIE
期刊论文 | 2025 , 68 (4) , 1004-1011 | SCIENCE CHINA-MATERIALS
WoS CC Cited Count: 1
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Abstract :

The influence of hydrogen bonding on spectroscopic properties is one of the fundamental issues in the field of luminescent organic-inorganic hybrid metal halides (OIMHs). We design and prepare three OIMHs, namely, crystals 1, 2 and 3, using 2,2 '-bipyridine and ZnCl2 as starting materials. From crystals 1 to 3, the hydrogen bonding environment surrounding the 2,2 '-bipyridinium cations gradually weakens, with both the dihedral angle and the number of hydrogen bonds around them decreasing progressively. Correspondingly, the blue emission belonging to the S1 -> S0 transition of the three crystals gradually increases, with crystal 3 exhibiting the strongest blue light emission and a photo-luminescence quantum yield reaching 34.10%. In crystal 1, the dense hydrogen bonding environment of the 2,2 '-bipyridinium cation results in an obvious energy transfer from S1 to T1. This reduces the population of the S1 state, thereby leading to weaker blue light emission. In crystals 2 and 3, the weaker hydrogen bonding environment and smaller spatial distortion of organic cations weaken or even prevent energy transfer between S1 and T1, thereby enhancing blue light emission. These findings provide new insights for exploring novel luminescent OIMHs and developing more effective means of regulating their luminescence performance. (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)-(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic)(OIMHs)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)2,2 '-(sic)(sic)(sic)(sic)ZnCl2(sic)(sic)(sic), (sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)OIMH, (sic)(sic)(sic)1,2(sic)3. (sic)(sic)(sic)1(sic)(sic)(sic)3, 2,2 '-(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic) (sic). (sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)S1 -> S0(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)3 (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)34.10%. (sic)(sic)(sic)1(sic), 2,2 '-(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)S1(sic)T1(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic) (sic)(sic)S1(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)2(sic)3(sic), (sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)S1(sic)T1(sic)(sic)(sic) (sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)OIMHs(sic) (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).

Keyword :

blue emission blue emission hydrogen bonding hydrogen bonding optical materials optical materials organic-inorganic hybrid metal halides organic-inorganic hybrid metal halides photoluminescence photoluminescence

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GB/T 7714 Zhang, Qi , Huang, Tianwen , Liu, Zheyuan et al. Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic-inorganic hybrid metal halide crystals [J]. | SCIENCE CHINA-MATERIALS , 2025 , 68 (4) : 1004-1011 .
MLA Zhang, Qi et al. "Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic-inorganic hybrid metal halide crystals" . | SCIENCE CHINA-MATERIALS 68 . 4 (2025) : 1004-1011 .
APA Zhang, Qi , Huang, Tianwen , Liu, Zheyuan , Feng, Ya-Nan , Yu, Yan , Li, Lingyun . Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic-inorganic hybrid metal halide crystals . | SCIENCE CHINA-MATERIALS , 2025 , 68 (4) , 1004-1011 .
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Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic–inorganic hybrid metal halide crystals EI
期刊论文 | 2025 , 68 (4) , 1004-1011 | Science China Materials
Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic–inorganic hybrid metal halide crystals; [一系列锌基有机-无机杂化金属卤化物晶体中的氢键 演变和高效蓝光发射] Scopus
期刊论文 | 2025 , 68 (4) , 1004-1011 | Science China Materials
Hydrogen bonding evolution and efficient blue light emission in a series of Zn-based organic–inorganic hybrid metal halide crystals; [一系列锌基有机-无机杂化金属卤化物晶体中的氢键 演变和高效蓝光发射] Scopus
期刊论文 | 2025 | Science China Materials
The leveraging ether C-H bond shielding strategy for antioxidative electrolyte in lithium-ion batteries SCIE
期刊论文 | 2025 , 13 (12) , 8518-8525 | JOURNAL OF MATERIALS CHEMISTRY A
WoS CC Cited Count: 1
Abstract&Keyword Cite Version(3)

Abstract :

Ether-based electrolytes exhibit low antioxidative properties (<4.2 V), significantly limiting their application in high-voltage cathodes. To address this gap, this study presents the leveraging ether C-H bond shielding (LEBS) strategy, an efficient approach to enhance the antioxidative properties of ether molecules through minimal functionalization. We selected a series of features related to conjugation effects, induction effects, and the molecular structure, using the change in carbon-hydrogen bond dissociation energy as the target value. Among the factors determining the antioxidative properties of ether molecules, the conjugation effect is dominant (89.72%) and negatively correlated with antioxidative properties. Therefore, weakening the stabilizing effect of the conjugation effect on ether carbon radicals is a crucial strategy for enhancing the antioxidative properties. The LEBS strategy categorizes ether molecules into symmetric and asymmetric types and classifies the functional groups on ether molecules to provide theoretical guidance for the modification scheme.

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GB/T 7714 Shi, Dehuan , Wang, Lei , Chen, Zheming et al. The leveraging ether C-H bond shielding strategy for antioxidative electrolyte in lithium-ion batteries [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (12) : 8518-8525 .
MLA Shi, Dehuan et al. "The leveraging ether C-H bond shielding strategy for antioxidative electrolyte in lithium-ion batteries" . | JOURNAL OF MATERIALS CHEMISTRY A 13 . 12 (2025) : 8518-8525 .
APA Shi, Dehuan , Wang, Lei , Chen, Zheming , Liu, Zheyuan , Yu, Yan , Yang, Chengkai . The leveraging ether C-H bond shielding strategy for antioxidative electrolyte in lithium-ion batteries . | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (12) , 8518-8525 .
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The leveraging ether C-H bond shielding strategy for antioxidative electrolyte in lithium-ion batteries Scopus
期刊论文 | 2025 , 13 (12) , 8518-8525 | Journal of Materials Chemistry A
The leveraging ether C-H bond shielding strategy for antioxidative electrolyte in lithium-ion batteries Scopus
期刊论文 | 2025 | Journal of Materials Chemistry A
The leveraging ether C-H bond shielding strategy for antioxidative electrolyte in lithium-ion batteries EI
期刊论文 | 2025 , 13 (12) , 8518-8525 | Journal of Materials Chemistry A
Suppressing intergranular cracking with near-surface layer regulation for electrochemical-thermal stabilization of LiCoO2 SCIE
期刊论文 | 2025 , 12 (9) , 3152-3159 | MATERIALS HORIZONS
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Abstract :

To further meet the application needs of lithium-ion batteries, developing cathodes with higher voltage and higher operating temperatures has become a primary goal. However, LiCoO2 cathodes encounter structural issues, particle fracture, and side reactions during high-voltage and high-temperature cycling. Thus, this work designs a novel interface engineering approach involving near-surface Li layer regulation and enhances the stability of the R3m layered structure, suppressing intergranular cracking. An undistorted surface with reduced phase transitions was revealed by the HAADF-STEM. The interface regulation by post-cycle simulations and XRD stabilizes interplanar spacing. The strong B-O bonds lower the O 2p energies, preventing oxygen loss and side reactions confirmed by XPS and band structure. Therefore, even under 50 degrees C, the half-cell maintains a capacity retention rate of 79% after 200 cycles at 5C at 4.5 V.

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GB/T 7714 Song, Kangwei , Shen, Yu , Xu, Tongmin et al. Suppressing intergranular cracking with near-surface layer regulation for electrochemical-thermal stabilization of LiCoO2 [J]. | MATERIALS HORIZONS , 2025 , 12 (9) : 3152-3159 .
MLA Song, Kangwei et al. "Suppressing intergranular cracking with near-surface layer regulation for electrochemical-thermal stabilization of LiCoO2" . | MATERIALS HORIZONS 12 . 9 (2025) : 3152-3159 .
APA Song, Kangwei , Shen, Yu , Xu, Tongmin , Lin, Yushuang , Chen, Zheming , Zhang, Weicheng et al. Suppressing intergranular cracking with near-surface layer regulation for electrochemical-thermal stabilization of LiCoO2 . | MATERIALS HORIZONS , 2025 , 12 (9) , 3152-3159 .
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Suppressing intergranular cracking with near-surface layer regulation for electrochemical-thermal stabilization of LiCoO2 EI
期刊论文 | 2025 , 12 (9) , 3152-3159 | Materials Horizons
Suppressing intergranular cracking with near-surface layer regulation for electrochemical-thermal stabilization of LiCoO2 Scopus
期刊论文 | 2025 | Materials Horizons
Porphyrin-Thiophene Based Conjugated Polymer Cathode with High Capacity for Lithium-Organic Batteries SCIE
期刊论文 | 2024 , 63 (14) | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Abstract&Keyword Cite Version(3)

Abstract :

Organic electrode materials are promising for next-generation energy storage materials due to their environmental friendliness and sustainable renewability. However, problems such as their high solubility in electrolytes and low intrinsic conductivity have always plagued their further application. Polymerization to form conjugated organic polymers can not only inhibit the dissolution of organic electrodes in the electrolyte, but also enhance the intrinsic conductivity of organic molecules. Herein, we synthesized a new conjugated organic polymer (COPs) COP500-CuT2TP (poly [5,10,15,20-tetra(2,2 '-bithiophen-5-yl) porphyrinato] copper (II)) by electrochemical polymerization method. Due to the self-exfoliation behavior, the porphyrin cathode exhibited a reversible discharge capacity of 420 mAh g-1, and a high specific energy of 900 Wh Kg-1 with a first coulombic efficiency of 96 % at 100 mA g-1. Excellent cycling stability up to 8000 cycles without capacity loss was achieved even at a high current density of 5 A g-1. This highly conjugated structure promotes COP500-CuT2TP combined high energy density, high power density, and good cycling stability, which would open new opportunity for the designable and versatile organic electrodes for electrochemical energy storage. A new porphyrin conjugated polymer cathode, COP500-CuT2TP is achieved under electrochemical polymerization. Self-exfoliation of polymer cathode promotes charge storage, leading to a specific capacity of 420 mAh g-1 and 900 Wh Kg-1. Excellent cycling stability up to 8000 cycles at 5 A g-1 is achieved. Mechanistic insights by combining experimental and computational investigations supports the charge storage performance. image

Keyword :

conjugated organic polymers conjugated organic polymers lithium-ion batteries lithium-ion batteries porphyrin porphyrin thiophene thiophene

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GB/T 7714 Wu, Xing , Zhou, Wang , Ye, Chao et al. Porphyrin-Thiophene Based Conjugated Polymer Cathode with High Capacity for Lithium-Organic Batteries [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (14) .
MLA Wu, Xing et al. "Porphyrin-Thiophene Based Conjugated Polymer Cathode with High Capacity for Lithium-Organic Batteries" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 63 . 14 (2024) .
APA Wu, Xing , Zhou, Wang , Ye, Chao , Zhang, Jiahao , Liu, Zheyuan , Yang, Chengkai et al. Porphyrin-Thiophene Based Conjugated Polymer Cathode with High Capacity for Lithium-Organic Batteries . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2024 , 63 (14) .
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Porphyrin‐Thiophene Based Conjugated Polymer Cathode with High Capacity for Lithium‐Organic Batteries
期刊论文 | 2024 , 63 (14) , n/a-n/a | Angewandte Chemie International Edition
Porphyrin-Thiophene Based Conjugated Polymer Cathode with High Capacity for Lithium-Organic Batteries Scopus
期刊论文 | 2024 , 63 (14) | Angewandte Chemie - International Edition
Porphyrin-Thiophene Based Conjugated Polymer Cathode with High Capacity for Lithium-Organic Batteries EI
期刊论文 | 2024 , 63 (14) | Angewandte Chemie - International Edition
Lithium-Lanthanide Heterometallic Organic Frameworks with Near-Unity Photoluminescence Quantum Yields for Single-Composition White-Light Emission and Fluorescent Sensing on Nitrobenzene SCIE
期刊论文 | 2024 , 12 (21) | ADVANCED OPTICAL MATERIALS
WoS CC Cited Count: 2
Abstract&Keyword Cite Version(2)

Abstract :

Lanthanide ion contained metal-organic frameworks (MOFs) have garnered significant attention in the fields of solid-state lighting and chemical sensing due to their porous structure and distinctive optical properties. However, they also present challenges because of the limited photoluminescence (PL) intensity resulting from the parity-forbidden f-f transitions of lanthanide ions. Herein, the study reports a new heterometallic MOFs Ln3Li2L4 (Li-Ln-MOF, Ln = Y, Eu, Tb and Dy, L = deprotonated 1,3,5-tris(4-carboxyphenyl)benzene) with a Brunauer-Emmett-Teller (BET) surface area of 774.1 m2/g. The porous crystal structure of Li-Ln-MOF is characterized by three kinds of channels interpenetrating with each other. By employing ligand alternation and lanthanide ion alloying strategies, Li-Y1-xEux-MOF1 crystal isostructural with Li-Ln-MOF is synthesized by using 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine (H3TATB) as ligand. The Li-Y0.7Eu0.3-MOF1 crystal excels in the comprehensive performance with a BET surface area of 858.8 m2 g-1 and a near-unity PL quantum yield. The time density functional theory and natural transition orbitals calculations unravel that the outstanding optical properties Li-Y0.7Eu0.3-MOF1 originates from the charge transfer between TATB3- and Eu3+. Benefiting from the excellent comprehensive performance of Li-Y1-xEux-MOF1, the study reveals their potentials as single-composition white-light emission and fluorescent sensing probe for the detection of nitrobenzene. A strategy via ligand alteration is developed to achieve a near-unity photoluminescence quantum yield in lanthanide metal-organic frameworks (Ln-MOFs) with a porosity of up to 53.6%. Mechanistic investigation through theoretical calculation and time-resolved spectra unravel that Ln-MOF displayed outstanding optical properties ascribed to the charge transfer from the triple excited state of ligand to the Ln3+. image

Keyword :

fluorescent sensing fluorescent sensing lanthanide-organic frameworks lanthanide-organic frameworks ligand alteration ligand alteration photoluminescence photoluminescence white-light emission white-light emission

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GB/T 7714 Zhang, Wei , Wang, En-Ting , Li, Xinhao et al. Lithium-Lanthanide Heterometallic Organic Frameworks with Near-Unity Photoluminescence Quantum Yields for Single-Composition White-Light Emission and Fluorescent Sensing on Nitrobenzene [J]. | ADVANCED OPTICAL MATERIALS , 2024 , 12 (21) .
MLA Zhang, Wei et al. "Lithium-Lanthanide Heterometallic Organic Frameworks with Near-Unity Photoluminescence Quantum Yields for Single-Composition White-Light Emission and Fluorescent Sensing on Nitrobenzene" . | ADVANCED OPTICAL MATERIALS 12 . 21 (2024) .
APA Zhang, Wei , Wang, En-Ting , Li, Xinhao , Huang, Weixin , Sun, Yakun , Liu, Zheyuan et al. Lithium-Lanthanide Heterometallic Organic Frameworks with Near-Unity Photoluminescence Quantum Yields for Single-Composition White-Light Emission and Fluorescent Sensing on Nitrobenzene . | ADVANCED OPTICAL MATERIALS , 2024 , 12 (21) .
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Lithium-Lanthanide Heterometallic Organic Frameworks with Near-Unity Photoluminescence Quantum Yields for Single-Composition White-Light Emission and Fluorescent Sensing on Nitrobenzene EI
期刊论文 | 2024 , 12 (21) | Advanced Optical Materials
Lithium-Lanthanide Heterometallic Organic Frameworks with Near-Unity Photoluminescence Quantum Yields for Single-Composition White-Light Emission and Fluorescent Sensing on Nitrobenzene Scopus
期刊论文 | 2024 , 12 (21) | Advanced Optical Materials
Synergistic Effects of Doping and Strain in Bismuth Catalysts for CO2 Electroreduction SCIE
期刊论文 | 2024 , 20 (34) | SMALL
WoS CC Cited Count: 4
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Abstract :

Doping is a recognized method for enhancing catalytic performance. The introduction of strains is a common consequence of doping, although it is often overlooked. Differentiating the impact of doping and strain on catalytic performance poses a significant challenge. In this study, Cu-doped Bi catalysts with substantial tensile strain are synthesized. The synergistic effects of doping and strain in bismuth result in a remarkable CO2RR performance. Under optimized conditions, Cu-1/6-Bi demonstrates exceptional formate Faradaic efficiency (>95%) and maintains over 90% across a wide potential window of 900 mV. Furthermore, it delivers an industrial-relevant partial current density of -317 mA cm(-2) at -1.2 V-RHE in a flow cell, while maintaining its selectivity. Additionally, it exhibits exceptional long-term stability, surpassing 120 h at -200 mA cm(-2). Through experimental and theoretical mechanistic investigations, it has been determined that the introduction of tensile strain facilitates the adsorption of *CO2, thereby enhancing the reaction kinetics. Moreover, the presence of Cu dopants and tensile strain further diminishes the energy barrier for the formation of *OCHO intermediate. This study not only offers valuable insights for the development of effective catalysts for CO2RR through doping, but also establishes correlations between doping, lattice strains, and catalytic properties of bismuth catalysts.

Keyword :

bismuth bismuth CO2 reduction CO2 reduction doping doping strain strain synergistic effect synergistic effect

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GB/T 7714 Wei, Yang , Xu, Xin , Shi, Dehuan et al. Synergistic Effects of Doping and Strain in Bismuth Catalysts for CO2 Electroreduction [J]. | SMALL , 2024 , 20 (34) .
MLA Wei, Yang et al. "Synergistic Effects of Doping and Strain in Bismuth Catalysts for CO2 Electroreduction" . | SMALL 20 . 34 (2024) .
APA Wei, Yang , Xu, Xin , Shi, Dehuan , Jiang, Yaming , Zheng, Chaoyang , Tan, Li et al. Synergistic Effects of Doping and Strain in Bismuth Catalysts for CO2 Electroreduction . | SMALL , 2024 , 20 (34) .
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Synergistic Effects of Doping and Strain in Bismuth Catalysts for CO2 Electroreduction EI
期刊论文 | 2024 , 20 (34) | Small
Synergistic Effects of Doping and Strain in Bismuth Catalysts for CO2 Electroreduction Scopus
期刊论文 | 2024 , 20 (34) | Small
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