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学者姓名：蔡平伟
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Abstract ：
Herein, cobalt ammine complexes are combined with alkali-resistant polyoxoniobates (PONbs) at the molecular level to obtain two new organic-inorganic hybrid Co-containing PONbs with the same polyanions but different Co contents. The Co-containing PONb with higher Co content exhibits superior hydrogen evolution reaction (HER) activity under highly alkaline conditions, which is better than the results for the similar Cu-containing PONb, highlighting the critical role of cobalt in improving HER performance. This study provides a new insight into the relationship between the structural properties of metal complexes during electrocatalysis.
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| GB/T 7714 | Chen, Chun-Xia , Duan, Shui-Lin , Zhang, Xiao-Yue et al. Organic-inorganic hybrid Co-containing polyoxoniobates as hydrogen evolution catalysts in alkaline media [J]. | DALTON TRANSACTIONS , 2025 , 54 (9) : 3591-3596 . |
| MLA | Chen, Chun-Xia et al. "Organic-inorganic hybrid Co-containing polyoxoniobates as hydrogen evolution catalysts in alkaline media" . | DALTON TRANSACTIONS 54 . 9 (2025) : 3591-3596 . |
| APA | Chen, Chun-Xia , Duan, Shui-Lin , Zhang, Xiao-Yue , Sun, Rong-Zhi , Cai, Ping-Wei , Sun, Cai et al. Organic-inorganic hybrid Co-containing polyoxoniobates as hydrogen evolution catalysts in alkaline media . | DALTON TRANSACTIONS , 2025 , 54 (9) , 3591-3596 . |
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A series of novel cage-like transition-metal (TM) incorporated heteropolyoxoniobates {TM4Nb64O200} (1-TM, TM = Ni, Cu, Mn, Cd) were hydrothermally synthesized and isolated as salts of mixed K+ and [CN3H6]+. As a result of transition metal ions incorporation, the charge distribution, redox potential, and active sites of the formed polyoxoniobates (PONbs) are variants, leading to differences in their electrocatalytic hydrogen evolution reaction (HER). Among these compounds, 1-Ni showed the best HER activity with an overpotential of 560 mV at 10 mA cm-2 and a minimum Tafel slope of 405.8 mV dec-1.
Keyword ：
Cage-like Cage-like Hydrogen evolution reaction Hydrogen evolution reaction Polyoxometalate Polyoxometalate Transition metal substitution Transition metal substitution
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| GB/T 7714 | Wu, Lan , Hu, Fen , Sun, Rong-Zhi et al. Development of cage-like transition-metal incorporated polyoxoniobates for hydrogen evolution reaction electrocatalysts [J]. | JOURNAL OF SOLID STATE CHEMISTRY , 2025 , 345 . |
| MLA | Wu, Lan et al. "Development of cage-like transition-metal incorporated polyoxoniobates for hydrogen evolution reaction electrocatalysts" . | JOURNAL OF SOLID STATE CHEMISTRY 345 (2025) . |
| APA | Wu, Lan , Hu, Fen , Sun, Rong-Zhi , Xia, Wen-Jun , Zeng, Qing-Xin , Cai, Ping-Wei et al. Development of cage-like transition-metal incorporated polyoxoniobates for hydrogen evolution reaction electrocatalysts . | JOURNAL OF SOLID STATE CHEMISTRY , 2025 , 345 . |
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Electrochemical carbon dioxide reduction to multi-carbon (C2+) products presents a significant opportunity for converting greenhouse gases into valuable fuels and feedstocks. The development of highly active and stable catalysts remains a critical challenge. In this study, we report the design and synthesis of cyclodextrin-modified Cu/Cu2O electrocatalysts, which exhibit remarkable efficiency in driving the CO2 electroreduction process towards C2+ products. Our optimized catalyst achieves a C2+ Faradaic efficiency exceeding 50 % at a high current density of over 200 mA cm(-2). Experimental findings, supported by density functional theory (DFT) calculations, reveal that cyclodextrin plays a dual role in stabilizing Cu+ and increasing the surface density of hydroxyl radicals. This dual function greatly benefits for enhancing *CO intermediate adsorption and promotes *CHO formation, thereby facilitating the crucial dimerization step for the formation of C2+ products. This work provides valuable insights into the development of highly active and selective electrocatalysts by carefully tuning the local catalytic environment, potentially opening new avenues for functionalizing electrocatalysts for future research in this area.
Keyword ：
C2+ Selectivity C2+ Selectivity Carbon dioxide reduction Carbon dioxide reduction *CO adsorption *CO adsorption Cu/Cu2O Cu/Cu2O Cyclodextrin-modification Cyclodextrin-modification
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| GB/T 7714 | Cai, Pingwei , Weng, Wanting , Han, Yue et al. Boosting multi-carbon products selectivity of carbon dioxide reduction via bifunctional cyclodextrin-modification on copper/copper(I) oxide electrocatalysts [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 680 : 453-458 . |
| MLA | Cai, Pingwei et al. "Boosting multi-carbon products selectivity of carbon dioxide reduction via bifunctional cyclodextrin-modification on copper/copper(I) oxide electrocatalysts" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 680 (2025) : 453-458 . |
| APA | Cai, Pingwei , Weng, Wanting , Han, Yue , Li, Xin , Lu, Zhiwen , Wen, Zhenhai . Boosting multi-carbon products selectivity of carbon dioxide reduction via bifunctional cyclodextrin-modification on copper/copper(I) oxide electrocatalysts . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 680 , 453-458 . |
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Nature seems to favor the formation of closed anion-templated silver clusters. How precisely to create non-closed sliver clusters remains an interesting challenge. In this work, we propose that the use of transition-metal-coordination-cluster substituted polyoxometalates (TMCC-substituted POMs) as templates is an effective synthetic strategy for creating the non-closed silver clusters, as demonstrated by the obtainment of four types of rare non-closed silver cluster species of Ag38-TM (TM = Co, Ni or Zn), Ag37-Zn, {Ag37-Zn}∞ and Ag36-TM (TM = Co, Ni). The idea of the strategy is to employ the TMCC-substituted POMs containing cluster modules with different bond interactions with Ag+ ions as templates to guide the formation of the non-closed silver clusters. For example, TMCC-substituted POM clusters are used as templates in this work, which contain POM modules that can coordinate with the Ag+ ions and TMCC moieties that are difficult to coordinate with the Ag+ ions, leading to the Ag+ ions being unable to form closed clusters around TMCC-substituted POM templates. The work demonstrates a promising approach to developing intriguing and unexplored non-closed silver clusters. © 2024 The Royal Society of Chemistry.
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| GB/T 7714 | Ge, R. , Cai, P.-W. , Sun, C. et al. Development of non-closed silver clusters by transition-metal-coordination-cluster substituted polyoxometalate templates [J]. | Chemical Science , 2024 , 15 (31) : 12543-12549 . |
| MLA | Ge, R. et al. "Development of non-closed silver clusters by transition-metal-coordination-cluster substituted polyoxometalate templates" . | Chemical Science 15 . 31 (2024) : 12543-12549 . |
| APA | Ge, R. , Cai, P.-W. , Sun, C. , Sun, Y.-Q. , Li, X.-X. , Zheng, S.-T. . Development of non-closed silver clusters by transition-metal-coordination-cluster substituted polyoxometalate templates . | Chemical Science , 2024 , 15 (31) , 12543-12549 . |
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It is important but still challenging to reveal the effect of precise structural modification of polyoxometalates (POMs) on electrocatalytic hydrogen evolution reaction (HER). Here, we present the syntheses of five polyoxoniobate (PONb) analogs with well-defined structures, including Na-GeNb 12 , Cu-GeNb 12 , GeV 2 Nb 12 , V 3 Nb 12 , and SiV 2 Nb 12 , as model systems, enabling us to unravel the effects of structural modification of POMs on the electrocatalytic HER at the atomic level. Our results revealed that the bridging O atoms of PONbs were the primary active sites for HER, whose catalytic performance was mostly affected by the central atom of PONb, followed by surface composition and then by counterion. Comprehensive characterizations and theoretical calculations were performed to confirm and interpret the above findings, which provide a rational atomic-level design of efficient POM-based HER electrocatalysts.
Keyword ：
atomic- level design atomic- level design central heteroat- om substitution central heteroat- om substitution HER activity HER activity polyoxometalates polyoxometalates surface modification surface modification
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| GB/T 7714 | Sun, Rong-Zhi , Chen, Jun-Xiang , Huang, Shu-Lin et al. Dissecting Structural Modi fi cation Effects on the Electrocatalytic Hydrogen Evolution Reaction Activity of Atomically Precise [J]. | CCS CHEMISTRY , 2024 . |
| MLA | Sun, Rong-Zhi et al. "Dissecting Structural Modi fi cation Effects on the Electrocatalytic Hydrogen Evolution Reaction Activity of Atomically Precise" . | CCS CHEMISTRY (2024) . |
| APA | Sun, Rong-Zhi , Chen, Jun-Xiang , Huang, Shu-Lin , Weng, Wan-Ting , Wu, Hua-Pan , Cai, Ping-Wei et al. Dissecting Structural Modi fi cation Effects on the Electrocatalytic Hydrogen Evolution Reaction Activity of Atomically Precise . | CCS CHEMISTRY , 2024 . |
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Selective uptake and elution of trace amounts of hazardous radioactive Sr-90 from large-scale high-level liquid waste (HLW) is crucial for sustainable development. Here, we propose a site differentiation strategy, based on the presence of distinct selective metal capture sites (concavity site and tweezer site) within the giant polyoxoniobate (PONb) nanoclusters of an all-inorganic PONb framework (FZU-1). Through this strategy, FZU-1 can not only effectively remove 98.9% of Sr2+ from simulated nuclear liquid waste, performing best among the reported Sr adsorbents, but also achieve desorption of adsorbed Sr2+ ions by selectively loading Na+ ions, thus enabling the recycling of FZU-1. Based on the well-defined single-crystal structures and theoretical studies, it can be revealed that the rapid and selective uptake of Sr2+ is attributed to the strong binding energy between the Sr2+ ions and the concavity sites. The effective elution of Sr2+, on the other hand, stems from the preferential binding of Na+ ions at the tweezer sites, elevating the cluster's electrostatic potential and indirectly facilitating the elution of Sr2+ ions. The exceptional stability of FZU-1, along with its rapid and selective Sr2+ capture and elution capabilities, positions it as a promising candidate for large-scale nuclear waste treatment and groundwater remediation applications.
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| GB/T 7714 | Liu, Yi-Xin , Wu, Ping-Xin , Dai, Jing-Yi et al. Site differentiation strategy for selective strontium uptake and elution within an all-inorganic polyoxoniobate framework [J]. | NATURE COMMUNICATIONS , 2024 , 15 (1) . |
| MLA | Liu, Yi-Xin et al. "Site differentiation strategy for selective strontium uptake and elution within an all-inorganic polyoxoniobate framework" . | NATURE COMMUNICATIONS 15 . 1 (2024) . |
| APA | Liu, Yi-Xin , Wu, Ping-Xin , Dai, Jing-Yi , Cai, Ping-Wei , Sun, Cai , Zheng, Shou-Tian . Site differentiation strategy for selective strontium uptake and elution within an all-inorganic polyoxoniobate framework . | NATURE COMMUNICATIONS , 2024 , 15 (1) . |
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Polyoxometalates (POMs) have good potential for applications in different fields, including conducting materials, optics, and electrocatalysis. Of particular significance is the synthesis and development of addendum POMs. Molybdenum-oxo clusters, which are renowned for their diverse structures and electronic properties, were utilized to facilitate the synthesis of innovative materials. Herein, we employed presynthesized {XW9 Nb3O40} (X= Si/Ge) polyanions as secondary building units and different molybdenum-oxo clusters as linkers. Four new addendum POMs were constructed, including two dimeric compounds Cs10[H2(SiW9Nb3O40)2(Mo2O4C2O4)]19H2O (1) and Cs8[H4(GeW9Nb3O40)2(Mo2O4C2O4)]17H2O (2), and two tetrameric compounds Cs15(NH4)[(SiW9Nb3O40)4(Mo4O6)]42H2O (3) and Cs10K5[H(GeW9Nb3O40)4(Mo4O6)]39H2O (4). Notably, this is the first report of Mo/W/Nb ternary mixed-addendum POMs. In addition, compounds 3 and 4 facilitate the transfer of protons through extended hydrogen-bonding networks with conductivity values of 1.16 x 10-2 and 7.73 x 10-3 Scm-1 at 85 degrees C and 98% relative humidity, respectively. Furthermore, no discernible decline in conductivity was noted over the course of 10 h.
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| GB/T 7714 | Chen, Si-Jie , Ge, Rui , Hong, Li-Hao et al. Assembly of Four Ternary Polyoxometalate Aggregates by Integrating Presynthesized {XW9Nb3O40} (X = Si/Ge) Units Using Molybdenum-Oxo Clusters [J]. | INORGANIC CHEMISTRY , 2024 , 64 (1) : 142-150 . |
| MLA | Chen, Si-Jie et al. "Assembly of Four Ternary Polyoxometalate Aggregates by Integrating Presynthesized {XW9Nb3O40} (X = Si/Ge) Units Using Molybdenum-Oxo Clusters" . | INORGANIC CHEMISTRY 64 . 1 (2024) : 142-150 . |
| APA | Chen, Si-Jie , Ge, Rui , Hong, Li-Hao , Sun, Yan-Qiong , Cai, Ping-Wei , Sun, Cai et al. Assembly of Four Ternary Polyoxometalate Aggregates by Integrating Presynthesized {XW9Nb3O40} (X = Si/Ge) Units Using Molybdenum-Oxo Clusters . | INORGANIC CHEMISTRY , 2024 , 64 (1) , 142-150 . |
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In this work, a novel organodiphosphate-containing inorganic-organic hybrid polyoxoniobate (PONb) ring {(PO3CH2CH2PO3H)(4)Nb8O16}(4-) (Nb8P8) has been achieved by a one-pot hydrothermal method. The ring is constructed from a tetragonal {Nb8O36} motif and four {PO3CH2CH2PO3H} ligands. Interestingly, Nb8P8 can be joined together via K-H2O clusters {K-2(H2O)(4)(OH)(2)} to form one-dimensional chains {[K-2(H2O)(4)(OH)(2)]Nb8P8}(n) and further linked by {Cu(en)(2)}(2+) (en = ethylenediamine) complexes, resulting in a three-dimensional supramolecular framework {[Cu(en)(2)](2)[K-2(H2O)(4)(OH)(2)]Nb8P8}3enH2O (1). 1 exhibits good chemical and thermal stability and has a high water vapor adsorption capacity of <= 224 cm(3) g(-1) (22.71 molmol(-1)) at 298 K, outperforming most of the known polyoxometalate-based materials. Impedance measurements prove that 1 can transfer protons with moderate conductivity. This study not only contributes to the structural diversity of organodiphosphate-containing PONbs and PONb rings but also provides a reference for the development of PONb-based materials with unique performance.
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| GB/T 7714 | Cong, Yu-Chen , Xiao, Hui-Ping , Cai, Ping-Wei et al. An Organodiphosphate-Containing Polyoxoniobate Ring and Its Assembly into a Three-Dimensional Framework through Hydrogen Bonding [J]. | INORGANIC CHEMISTRY , 2024 , 63 (20) : 9204-9211 . |
| MLA | Cong, Yu-Chen et al. "An Organodiphosphate-Containing Polyoxoniobate Ring and Its Assembly into a Three-Dimensional Framework through Hydrogen Bonding" . | INORGANIC CHEMISTRY 63 . 20 (2024) : 9204-9211 . |
| APA | Cong, Yu-Chen , Xiao, Hui-Ping , Cai, Ping-Wei , Sun, Cai , Sun, Yan-Qiong , Qi, Ming-Qiang et al. An Organodiphosphate-Containing Polyoxoniobate Ring and Its Assembly into a Three-Dimensional Framework through Hydrogen Bonding . | INORGANIC CHEMISTRY , 2024 , 63 (20) , 9204-9211 . |
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Rechargeable Zn-air batteries (ZABs) are considered highly competitive technologies for meeting the energy demands of the next generation, whether for energy storage or portable power. However, their practical application is hindered by critical challenges such as low voltage, CO2 poisoning at the cathode, low power density, and poor charging efficiency Herein, a rechargeable hybrid alkali/acid Zn-air battery (h-RZAB) that effectively separates the discharge process in an acidic environment from the charging process in an alkaline environment, utilizing oxygen reduction reaction (ORR) and glycerol oxidation reaction (GOR) respectively is reported. Compared to previously reported ZABs, this proof-of-concept device demonstrates impressive performance, exhibiting a high power density of 562.7 mW cm-2 and a high operating voltage during discharging. Moreover, the battery requires a significantly reduced charging voltage due to the concurrent utilization of biomass-derived glycerol, resulting in practical and cost-effective advantages. The decoupled system offers great flexibility for intermittently generated renewable power sources and presents cost advantages over traditional ZABs. As a result, this technology holds significant promise in opening avenues for the future development of renewable energy-compatible electrochemical devices. A rechargeable hybrid Zn-air battery (h-RZAB) is proposed by decoupling charging and discharging processes in separate alkaline and acidic electrolytes. which demonstrates a remarkable power density of 562.7 mW cm-2 and maintains a high operating voltage during discharging. Additionally, the battery requires a significantly reduced charging voltage due to the concurrent utilization of biomass-derived glycerol. image
Keyword ：
alkali/acid electrolytes alkali/acid electrolytes glycerol oxidation reaction glycerol oxidation reaction high power density high power density hybrid Zn-air battery hybrid Zn-air battery reduced charging voltage reduced charging voltage
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| GB/T 7714 | Yin, Ximeng , Sun, Wei , Chen, Kai et al. High-Power-Density Rechargeable Hybrid Alkali/Acid Zn-Air Battery Performance Through Value-Added Conversion Charging [J]. | ADVANCED SCIENCE , 2024 , 11 (23) . |
| MLA | Yin, Ximeng et al. "High-Power-Density Rechargeable Hybrid Alkali/Acid Zn-Air Battery Performance Through Value-Added Conversion Charging" . | ADVANCED SCIENCE 11 . 23 (2024) . |
| APA | Yin, Ximeng , Sun, Wei , Chen, Kai , Lu, Zhiwen , Chen, Junxiang , Cai, Pingwei et al. High-Power-Density Rechargeable Hybrid Alkali/Acid Zn-Air Battery Performance Through Value-Added Conversion Charging . | ADVANCED SCIENCE , 2024 , 11 (23) . |
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Electrochemical energy devices serve as a vital link in the mutual conversion between chemical energy and electrical energy. This role positions them to be essential for achieving high-efficiency utilization and advancement of renewable energy. Electrochemical reactions, including anodic and cathodic reactions, play a crucial role in facilitating the connection between two types of charge carriers: electrons circulating within the external circuit and ions transportation within the internal electrolyte, which ensures the completion of the circuit in electrochemical devices. While electrons are uniform, ions come in various types, we herein propose the concept of hybrid electrochemical energy technologies (h-EETs) characterized by the utilization of different ions as charge carriers of anodic and cathodic reactions. Accordingly, this review aims to explore the fundamentals of emerging hybrid electrochemical energy technologies and recent research advancements. We start with the introduction of the concept and foundational aspects of h-EETs, including the proposed definition, the historical background, operational principles, device configurations, and the underlying principles governing these configurations of the h-EETs. We then discuss how the integration of hybrid charge carriers influences the performance of associated h-EETs, to facilitate an insightful understanding on how ions carriers can be beneficial and effectively implemented into electrochemical energy devices. Furthermore, a special emphasis is placed on offering an overview of the research progress in emerging h-EETs over recent years, including hybrid battery capacitors that extend beyond traditional hybrid supercapacitors, as well as exploration into hybrid fuel cells and hybrid electrolytic synthesis. Finally, we highlight the major challenges and provide anticipatory insights into the future perspectives of developing high-performance h-EETs devices. (c) 2024 Science China Press. Published by Elsevier B.V. and Science China Press. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
Keyword ：
Batteries Batteries Electrochemical energy technologies Electrochemical energy technologies Electrosynthesis Electrosynthesis Ion charge carriers Ion charge carriers
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| GB/T 7714 | Cai, Pingwei , Hu, Xiang , Chen, Kai et al. The emerging hybrid electrochemical energy technologies [J]. | SCIENCE BULLETIN , 2024 , 69 (22) : 3571-3589 . |
| MLA | Cai, Pingwei et al. "The emerging hybrid electrochemical energy technologies" . | SCIENCE BULLETIN 69 . 22 (2024) : 3571-3589 . |
| APA | Cai, Pingwei , Hu, Xiang , Chen, Kai , Lu, Zhiwen , Wen, Zhenhai . The emerging hybrid electrochemical energy technologies . | SCIENCE BULLETIN , 2024 , 69 (22) , 3571-3589 . |
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