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学者姓名：郑云
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Abstract ：
The use of two-dimensional (2D) layered metal-organic frameworks (MOFs) as self-sacrificial templates has been proven to be a successful method to create high-efficiency Selenium (Se)-containing electrocatalysts for overall water splitting. Herein, two strategies are then utilized to introduce Se element into the Co-Fe MOF, one being the etching of as-prepared MOF by SeO2 solution, and the other, the replacing of SCN- with SeCN- as the construction unit. The electrochemical activity of the pristine 2D MOF and their calcinated derivatives for catalyzing the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is evaluated and further discussed. It is found that the effect of introducing Se on improving electrochemical catalytic activity is significant for the HER process. Specifically, the calcinated derivative in the replacing method exhibits an overpotential of 235 mV for HER and 270 mV for OER at a current density of 10 mA/cm2. For comparing the two methods of introducing Se element into MOF, similar electrocatalytic activity can be achieved on the their calcinated derivatives. The high electrochemical performance of 2D CoFe-MOF derivatives may be resulted from the unique 2D hierarchical porous structure and strong synergistic effect between different components in the material.
Keyword ：
2D MOF 2D MOF hydrogen evolution reaction (HER) hydrogen evolution reaction (HER) oxygen evolution reaction (OER) oxygen evolution reaction (OER) selenium (Se)-containing materials selenium (Se)-containing materials
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| GB/T 7714 | Shang, Zhao-ting , Li, Tang-ming , Hu, Bing-qian et al. Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting [J]. | FRONTIERS IN ENERGY , 2024 , 18 (3) : 378-389 . |
| MLA | Shang, Zhao-ting et al. "Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting" . | FRONTIERS IN ENERGY 18 . 3 (2024) : 378-389 . |
| APA | Shang, Zhao-ting , Li, Tang-ming , Hu, Bing-qian , Liu, Min , Lu, Wang-ting , Yu, Fan et al. Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting . | FRONTIERS IN ENERGY , 2024 , 18 (3) , 378-389 . |
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| GB/T 7714 | Zheng, Yun , Yu, Bo , Fu, Xiaogang et al. Special issue on electrochemical conversion and utilization of hydrogen energy [J]. | FRONTIERS IN ENERGY , 2024 , 18 (3) : 263-264 . |
| MLA | Zheng, Yun et al. "Special issue on electrochemical conversion and utilization of hydrogen energy" . | FRONTIERS IN ENERGY 18 . 3 (2024) : 263-264 . |
| APA | Zheng, Yun , Yu, Bo , Fu, Xiaogang , Zhang, Jiujun . Special issue on electrochemical conversion and utilization of hydrogen energy . | FRONTIERS IN ENERGY , 2024 , 18 (3) , 263-264 . |
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Proton exchange membrane fuel cells (PEMFCs) are playing irreplaceable roles in the construction of the future sustainable energy system. However, the insufficient performance of platinum (Pt)-based electrocatalysts for oxygen reduction reaction (ORR) hinders the overall efficiency of PEMFCs. Engineering the surface strain of catalysts is considered an effective way to tune their electronic structures and therefore optimize catalytic behavior. In this paper, insights into strain engineering for improving Pt-based catalysts toward ORR are elaborated in detail. First, recent advances in understanding the strain effects on ORR catalysts are comprehensively discussed. Then, strain engineering methodologies for adjusting Pt-based catalysts are comprehensively discussed. Finally, further information on the various challenges and potential prospects for strain modulation of Pt-based catalysts is provided.
Keyword ：
catalytic performance catalytic performance oxygen reduction reaction (ORR) oxygen reduction reaction (ORR) proton exchange membrane fuel cells (PEMFCs) proton exchange membrane fuel cells (PEMFCs) Pt-based catalysts Pt-based catalysts strain engineering strain engineering
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| GB/T 7714 | Wang, Zeyu , Liu, Yanru , Chen, Shun et al. Strain engineering of Pt-based electrocatalysts for oxygen reaction reduction [J]. | FRONTIERS IN ENERGY , 2024 , 18 (2) : 241-262 . |
| MLA | Wang, Zeyu et al. "Strain engineering of Pt-based electrocatalysts for oxygen reaction reduction" . | FRONTIERS IN ENERGY 18 . 2 (2024) : 241-262 . |
| APA | Wang, Zeyu , Liu, Yanru , Chen, Shun , Zheng, Yun , Fu, Xiaogang , Zhang, Yan et al. Strain engineering of Pt-based electrocatalysts for oxygen reaction reduction . | FRONTIERS IN ENERGY , 2024 , 18 (2) , 241-262 . |
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The electrochemistry of cathode materials for sodium-ion batteries differs significantly from lithium-ion batteries and offers distinct advantages. Overall, the progress of commercializing sodium-ion batteries is currently impeded by the inherent inefficiencies exhibited by these cathode materials, which include insufficient conductivity, slow kinetics, and substantial volume changes throughout the process of intercalation and deintercalation cycles. Consequently, numerous methodologies have been utilized to tackle these challenges, encompassing structural modulation, surface modification, and elemental doping. This paper aims to highlight fundamental principles and strategies for the development of sodium transition metal oxide cathodes. Specifically, it emphasizes the role of various elemental doping techniques in initiating anionic redox reactions, improving cathode stability, and enhancing the operational voltage of these cathodes, aiming to provide readers with novel perspectives on the design of sodium metal oxide cathodes through the doping approach, as well as address the current obstacles that can be overcome/alleviated through these dopant strategies.
Keyword ：
doping strategy doping strategy sodium-ion batteries sodium-ion batteries transition metal cathode transition metal cathode
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| GB/T 7714 | Zhang, Zhijing , Zhang, Haoze , Wu, Yaopeng et al. Advances in doping strategies for sodium transition metal oxides cathodes: A review [J]. | FRONTIERS IN ENERGY , 2024 . |
| MLA | Zhang, Zhijing et al. "Advances in doping strategies for sodium transition metal oxides cathodes: A review" . | FRONTIERS IN ENERGY (2024) . |
| APA | Zhang, Zhijing , Zhang, Haoze , Wu, Yaopeng , Yan, Wei , Zhang, Jiujun , Zheng, Yun et al. Advances in doping strategies for sodium transition metal oxides cathodes: A review . | FRONTIERS IN ENERGY , 2024 . |
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Solid-state electrolytes (SSEs) with flame retardancy and good adaptability to lithium-metal anodes can have great potential in enabling high safety and high energy density lithium-metal batteries. In addition to optimize the composition/structure of current three main types of SSEs including inorganic SSEs, polymeric SSEs, and inorganic/polymer composite SSEs, massive efforts are under way to seek for new SSE formulations. Recently, metal-organic frameworks (MOFs), a type of crystalline inorganic-organic materials with the structural features of rich porous, ordered channels, tunable functionality, are emerging as a research hotspot in the field of SSEs, which have attracted tremendous efforts. Based on the latest investigations, in this paper, a systematic overview of the recent development in MOFs-based SSEs (MSSEs) for lithium-metal batteries is presented. Classification and compositions, development history, fabrication approaches, and recent progress of five main types of MSSEs are comprehensively reviewed, and the roles of MOFs in MSSEs including ionic conductors, ionic transport carriers, and added fillers are highlighted. Moreover, the main challenges are analyzed and the perspectives of MSSEs are also presented for their future research and development. This review not only contributes to the study of new systems of solid-state electrolytes, but also for further development of electrified transportation.
Keyword ：
High ionic conductivity High ionic conductivity Lithium -metal batteries Lithium -metal batteries Metal -organic frameworks Metal -organic frameworks Solid-state electrolytes Solid-state electrolytes
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| GB/T 7714 | Wang, Hongyao , Duan, Song , Zheng, Yun et al. Solid-state electrolytes based on metal-organic frameworks for enabling high-performance lithium-metal batteries: Fundamentals, progress, and perspectives [J]. | ETRANSPORTATION , 2024 , 20 . |
| MLA | Wang, Hongyao et al. "Solid-state electrolytes based on metal-organic frameworks for enabling high-performance lithium-metal batteries: Fundamentals, progress, and perspectives" . | ETRANSPORTATION 20 (2024) . |
| APA | Wang, Hongyao , Duan, Song , Zheng, Yun , Qian, Lanting , Liao, Can , Dong, Li et al. Solid-state electrolytes based on metal-organic frameworks for enabling high-performance lithium-metal batteries: Fundamentals, progress, and perspectives . | ETRANSPORTATION , 2024 , 20 . |
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| GB/T 7714 | Zheng, Yun , Zhang, Gaixia , Deng, Sixu et al. Special issue on electrochemical energy storage and conversion [J]. | FRONTIERS IN ENERGY , 2024 , 18 (2) : 125-127 . |
| MLA | Zheng, Yun et al. "Special issue on electrochemical energy storage and conversion" . | FRONTIERS IN ENERGY 18 . 2 (2024) : 125-127 . |
| APA | Zheng, Yun , Zhang, Gaixia , Deng, Sixu , Zhang, Jiujun . Special issue on electrochemical energy storage and conversion . | FRONTIERS IN ENERGY , 2024 , 18 (2) , 125-127 . |
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Solid polymer electrolytes (SPEs) for lithium metal batteries have garnered considerable interests owing to their low cost, flexibility, lightweight, and favorable interfacial compatibility with battery electrodes. Their soft mechanical nature compared to solid inorganic electrolytes give them a large advantage to be used in low pressure solid-state lithium metal batteries, which can avoid the cost and weight of the pressure cages. However, the application of SPEs is hindered by their relatively low ionic conductivity. In addressing this limitation, enormous efforts are devoted to the experimental investigation and theoretical calculations/simulation of new polymer classes. Recently, metal-organic frameworks (MOFs) have been shown to be effective in enhancing ion transport in SPEs. However, the mechanisms in enhancing Li+ conductivity have rarely been systematically and comprehensively analyzed. Therefore, this review provides an in-depth summary of the mechanisms of MOF-enhanced Li+ transport in MOF-based solid polymer electrolytes (MSPEs) in terms of polymer, MOF, MOF/polymer interface, and solid electrolyte interface aspects, respectively. Moreover, the understanding of Li+ conduction mechanisms through employing advanced characterization tools, theoretical calculations, and simulations are also reviewed in this review. Finally, the main challenges in developing MSPEs are deeply analyzed and the corresponding future research directions are also proposed.
Keyword ：
lithium metal batteries lithium metal batteries mechanisms for ionic conduction mechanisms for ionic conduction metal-organic frameworks metal-organic frameworks solid polymer electrolytes solid polymer electrolytes
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| GB/T 7714 | Duan, Song , Qian, Lanting , Zheng, Yun et al. Mechanisms of the Accelerated Li+ Conduction in MOF-Based Solid-State Polymer Electrolytes for All-Solid-State Lithium Metal Batteries [J]. | ADVANCED MATERIALS , 2024 , 36 (32) . |
| MLA | Duan, Song et al. "Mechanisms of the Accelerated Li+ Conduction in MOF-Based Solid-State Polymer Electrolytes for All-Solid-State Lithium Metal Batteries" . | ADVANCED MATERIALS 36 . 32 (2024) . |
| APA | Duan, Song , Qian, Lanting , Zheng, Yun , Zhu, Yanfei , Liu, Xiang , Dong, Li et al. Mechanisms of the Accelerated Li+ Conduction in MOF-Based Solid-State Polymer Electrolytes for All-Solid-State Lithium Metal Batteries . | ADVANCED MATERIALS , 2024 , 36 (32) . |
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Electrocatalytic oxidation as a promising route to produce value-added products from biomass-derived organics has received increasing attention in recent years. However, the efficient conversion of concentrated feedstock solutions with high selectivity and Faradaic efficiency (FE) remains challenging. Herein, we report a cation-defective Ni-based electrocatalyst derived from the surface reconstruction of the NiCo Prussian blue analogue (NiCo PBA) in alkaline media for the efficient oxidation of biomass-derived organics in a high concentration solution. Taking 5-hydroxymethylfurfural (HMF) as an example, the NiCo PBA can deliver a satisfactory catalytic performance in terms of high HMF conversion (97%), selectivity to 2,5-furandicarboxylic acid (98%), and FE (100%), even at a concentration as high as 100 mM. Theoretical calculations suggest that the cation defects not only promote the fast conversion of Ni(OH)(2) to electrochemically active NiOOH under anodic potential but also enhance the adsorption of HMF onto the active sites and accelerate the spontaneous chemical oxidation. This study provides deep insights into the structural evolution of PBA-based catalysts and reveals the pivotal factor that affects the performance of electrocatalytic oxidation, paving the way to further develop advanced electrocatalysts for efficient oxidation reactions with a high concentration.
Keyword ：
biomass upgrade biomass upgrade cation defects cation defects electrooxidation electrooxidation operandoRaman spectroscopies operandoRaman spectroscopies Prussian blue analogues catalysts Prussian blue analogues catalysts
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| GB/T 7714 | Zhang, Hongwei , Yang, Qin , Luo, Shuting et al. On the Activity and Selectivity of 5-Hydroxymethylfurfural Electrocatalytic Oxidation over Cation-Defective Nickel Hydroxides [J]. | ACS CATALYSIS , 2024 , 14 (12) : 9565-9574 . |
| MLA | Zhang, Hongwei et al. "On the Activity and Selectivity of 5-Hydroxymethylfurfural Electrocatalytic Oxidation over Cation-Defective Nickel Hydroxides" . | ACS CATALYSIS 14 . 12 (2024) : 9565-9574 . |
| APA | Zhang, Hongwei , Yang, Qin , Luo, Shuting , Liu, Zhichen , Huang, Jinming , Zheng, Yun et al. On the Activity and Selectivity of 5-Hydroxymethylfurfural Electrocatalytic Oxidation over Cation-Defective Nickel Hydroxides . | ACS CATALYSIS , 2024 , 14 (12) , 9565-9574 . |
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Lithium metal batteries (LMBs) are considered as one type of the most promising next-generation energy storage devices with high-energy-density, and stabilizing the lithium metal anodes (LMAs) to overcome LMBs' safety concerns and performance degradation has attracted extensive attention. Introducing advanced polymer materials into the critical components of LMBs has proven to be an effective and promising approach for stabilizing LMAs toward practical application of LMBs. In addressing the lack of a timely review on the emerging progress of advanced polymer materials in LMBs for stabilizing LMAs, a comprehensive article summarizing the most recent developments of multiscale cellulose materials, including micron cellulose (MC) and nanocellulose (NC), in LMBs is reviewed. First, the basic structures of cellulose, characteristics comparison, and the development history of introducing cellulose into LMBs are presented. Furthermore, the roles of multiscale cellulose materials and functional mechanisms in various components of LMBs for stabilizing LMAs are summarized. A general conclusion and a perspective on the current limitations and future research directions of cellulose-based stable LMBs are proposed. The aim of this review is not only to summarize the recent progress of multiscale cellulose materials in stabilizing LMAs but also to lighten the pathways for realizing LMBs' practical application. This review aims to provide an in-depth summary of the roles of multiscale cellulose materials (i.e., micron cellulose (MC) and nanocellulose (NC)) in various components of lithium-metal batteries (LMBs), including separators, electrolytes, interfaces, and anode current collectors. Additionally, a general conclusion and a perspective on the current limitations and future research directions of cellulose-based stable LMBs are proposed. image
Keyword ：
advanced polymer materials advanced polymer materials lithium metal batteries lithium metal batteries micron cellulose micron cellulose nanocellulose nanocellulose stabilizing lithium metal anodes stabilizing lithium metal anodes
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| GB/T 7714 | Li, Zhenghao , Zheng, Yun , Liao, Can et al. Advanced Polymer Materials for Protecting Lithium Metal Anodes of Liquid-State and Solid-State Lithium Batteries [J]. | ADVANCED FUNCTIONAL MATERIALS , 2024 . |
| MLA | Li, Zhenghao et al. "Advanced Polymer Materials for Protecting Lithium Metal Anodes of Liquid-State and Solid-State Lithium Batteries" . | ADVANCED FUNCTIONAL MATERIALS (2024) . |
| APA | Li, Zhenghao , Zheng, Yun , Liao, Can , Duan, Song , Liu, Xiang , Chen, Guohui et al. Advanced Polymer Materials for Protecting Lithium Metal Anodes of Liquid-State and Solid-State Lithium Batteries . | ADVANCED FUNCTIONAL MATERIALS , 2024 . |
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The poor ambient ionic transport properties of poly(ethylene oxide) (PEO)-based SPEs can be greatly improved through filler introduction. Metal fluorides are effective in promoting the dissociation of lithium salts via the establishment of the Li-F bond. However, too strong Li-F interaction would impair the fast migration of lithium ions. Herein, magnesium aluminum fluoride (MAF) fillers are developed. Experimental and simulation results reveal that the Li-F bond strength could be readily altered by changing fluorine vacancy (VF) concentration in the MAF, and lithium salt anions can also be well immobilized, which realizes a balance between the dissociation degree of lithium salts and fast transport of lithium ions. Consequently, the Li symmetric cells cycle stably for more than 1400 h at 0.1 mA cm-2 with a LiF/Li3N-rich solid electrolyte interphase (SEI). The SPE exhibits a high ionic conductivity (0.5 mS cm-1) and large lithium-ion transference number (0.4), as well as high mechanical strength owing to the hydrogen bonding between MAF and PEO. The corresponding Li//LiFePO4 cells deliver a high discharge capacity of 160.1 mAh g-1 at 1 C and excellent cycling stability with 100.2 mAh g-1 retaining after 1000 cycles. The as-assembled pouch cells show excellent electrochemical stability even at rigorous conditions, demonstrating high safety and practicability. © 2024 American Chemical Society.
Keyword ：
Aluminum compounds Aluminum compounds Bond strength (chemical) Bond strength (chemical) Bond strength (materials) Bond strength (materials) Electrolytes Electrolytes Energy gap Energy gap Fluorine Fluorine Fluorine containing polymers Fluorine containing polymers Hydrogen bonds Hydrogen bonds Lithium Fluoride Lithium Fluoride Magnesium compounds Magnesium compounds Positive ions Positive ions
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| GB/T 7714 | Zhou, Mingxia , Cui, Kai , Wang, Tian-Shuai et al. Bimetal Fluorides with Adjustable Vacancy Concentration Reinforcing Ion Transport in Poly(ethylene oxide) Electrolyte [J]. | ACS Nano , 2024 , 18 (39) : 26986-26996 . |
| MLA | Zhou, Mingxia et al. "Bimetal Fluorides with Adjustable Vacancy Concentration Reinforcing Ion Transport in Poly(ethylene oxide) Electrolyte" . | ACS Nano 18 . 39 (2024) : 26986-26996 . |
| APA | Zhou, Mingxia , Cui, Kai , Wang, Tian-Shuai , Luo, Zhihong , Chen, Li , Zheng, Yun et al. Bimetal Fluorides with Adjustable Vacancy Concentration Reinforcing Ion Transport in Poly(ethylene oxide) Electrolyte . | ACS Nano , 2024 , 18 (39) , 26986-26996 . |
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