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Chen Z, Ma T, Wei W, Wong WY, Zhao C, Ni BJ. Work Function-Guided Electrocatalyst Design. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2401568. [PMID: 38682861 DOI: 10.1002/adma.202401568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/14/2024] [Indexed: 05/01/2024]
Abstract
The development of high-performance electrocatalysts for energy conversion reactions is crucial for advancing global energy sustainability. The design of catalysts based on their electronic properties (e.g., work function) has gained significant attention recently. Although numerous reviews on electrocatalysis have been provided, no such reports on work function-guided electrocatalyst design are available. Herein, a comprehensive summary of the latest advancements in work function-guided electrocatalyst design for diverse electrochemical energy applications is provided. This includes the development of work function-based catalytic activity descriptors, and the design of both monolithic and heterostructural catalysts. The measurement of work function is first discussed and the applications of work function-based catalytic activity descriptors for various reactions are fully analyzed. Subsequently, the work function-regulated material-electrolyte interfacial electron transfer (IET) is employed for monolithic catalyst design, and methods for regulating the work function and optimizing the catalytic performance of catalysts are discussed. In addition, key strategies for tuning the work function-governed material-material IET in heterostructural catalyst design are examined. Finally, perspectives on work function determination, work function-based activity descriptors, and catalyst design are put forward to guide future research. This work paves the way to the work function-guided rational design of efficient electrocatalysts for sustainable energy applications.
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Affiliation(s)
- Zhijie Chen
- School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Tianyi Ma
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Wei Wei
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hung Hom Kowloon, Hong Kong, P. R. China
| | - Chuan Zhao
- School of Chemistry, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Bing-Jie Ni
- School of Civil and Environmental Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
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2
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Zhang Q, Lan XY, Chen XQ, Hong JM. Elucidating the roles of Ni ions and crosslinking heteroatoms in Ni 3(BHT) 2/2GO as electron shuttles for electrocatalytic oxidation of tetracycline hydrochloride. CHEMOSPHERE 2024; 349:140849. [PMID: 38043619 DOI: 10.1016/j.chemosphere.2023.140849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
As a hot candidate for marine pollution control, electrocatalytic oxidation strongly depends on the characteristics of anode materials. Even though emerging 2D metal-organic frameworks (2D-MOFs)/graphene oxide (GO) complex has satisfied the conductive and tunable requirements of anode, electrocatalytic efficiency still needs to be improved by maximizing the electron carriers or shuttles. Herein, we capitalized upon crosslinking heteroatoms as pointcut to adjust the electron distribution, mobility, and transfer orientation in 2D-MOFs/GO. As a result, Ni3(BHT)2/2GO (metal centers: Ni; crosslinking heteroatoms: S), which was much higher than materials with metal centers of Cu or crosslinking heteroatoms of N, achieved superior conductivity and 100% tetracycline hydrochloride removal within 12 min. In Ni3(BHT)2/2GO, Ni ions and S atoms cooperated as electron shutters rather than isolated active center and granted accelerated electron transfer from 2D-MOFs to GO layers. Furthermore, Ni sites and S crosslinking heteroatoms exhibited superior activity for ⋅O2- and ⋅OH generation, whereas 1O2 depended more on C and O substrates. All experiments, theory calculations, and application expanding approved the practice feasibility of 2D-MOFs/GO in electrocatalytic oxidation by adjusting crosslinking heteroatoms. All these results provided new perspectives on the micro-molecular regulation for improving electrocatalytic efficiency.
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Affiliation(s)
- Qian Zhang
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China; Xiamen Engineering Research Center of Industrial Wastewater Biochemical Treatment, Xiamen, 361021, China; Fujian Provincial Research Center of Industrial Wastewater Biochemical Treatment (Huaqiao University), Xiamen, 361021, China
| | - Xin-Yue Lan
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China; Xiamen Engineering Research Center of Industrial Wastewater Biochemical Treatment, Xiamen, 361021, China; Fujian Provincial Research Center of Industrial Wastewater Biochemical Treatment (Huaqiao University), Xiamen, 361021, China
| | - Xiao-Qi Chen
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China; Xiamen Engineering Research Center of Industrial Wastewater Biochemical Treatment, Xiamen, 361021, China; Fujian Provincial Research Center of Industrial Wastewater Biochemical Treatment (Huaqiao University), Xiamen, 361021, China
| | - Jun-Ming Hong
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China; Xiamen Engineering Research Center of Industrial Wastewater Biochemical Treatment, Xiamen, 361021, China; Fujian Provincial Research Center of Industrial Wastewater Biochemical Treatment (Huaqiao University), Xiamen, 361021, China.
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3
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Zhu X, Liu G, Tao X, Huang P, Wang Q, Chen G, Yang J, Zhang L, Zhou Y. Role of the Metal Precursor in Preparing Dual-Atom Catalysts for the Oxygen Reduction Reaction. ACS OMEGA 2023; 8:41708-41717. [PMID: 37970012 PMCID: PMC10633877 DOI: 10.1021/acsomega.3c06005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 09/14/2023] [Indexed: 11/17/2023]
Abstract
Dual-atom catalysts (DACs) have arisen as a novel type of heterogeneous catalyst that extends from single-atom catalysts (SACs) by incorporating two kinds of metals. These materials have demonstrated enhanced performance when compared to SACs. The choice of metal precursors plays an important role in the synthesis of DACs. Here, we choose Fe and Co as DAC models and study types, contents, molar ratios of two precursors, and oxygen reduction reaction (ORR) activity. The Fe,Co DACs were synthesized by an adsorption-annealing approach, using nitrogen-doped graphitic carbon (NC) as the support. As a result, the adsorption ability of metal precursors on the support determines the metal loadings in Fe and Co DACs, leading to differences in ORR performance. The Fe precursors win the adsorption competitions in most cases, resulting in a much higher loading than that of Co precursors. Importantly, it is difficult to increase the precursor content by simply increasing the initial amount. Choosing the right combination of metal precursors, such as ferrocene and cobalt chloride, can yield Fe,Co DACs with enhanced ORR performance..
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Affiliation(s)
- Xiu Zhu
- School
of Materials Science and Engineering, Jiangsu
University, Zhenjiang 212013, Jiangsu, China
| | - Genlin Liu
- Institute
of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, Jiangsu, China
| | - Xiafang Tao
- School
of Materials Science and Engineering, Jiangsu
University, Zhenjiang 212013, Jiangsu, China
- Max
Planck Institute for Polymer Research, Mainz 55128, Germany
| | - Pengwei Huang
- School
of Materials Science and Engineering, Jiangsu
University, Zhenjiang 212013, Jiangsu, China
| | - Qing Wang
- Institute
for Catalysis, Hokkaido University, Kita 21-10, Sapporo 001-0021, Japan
| | - Guangbo Chen
- Faculty
of Chemistry and Food Chemistry &; Center for Advancing Electronics
Dresden (cfaed), Technische Universität
Dresden, Dresden 01062, Germany
| | - Juan Yang
- School
of Materials Science and Engineering, Jiangsu
University, Zhenjiang 212013, Jiangsu, China
| | - Liang Zhang
- Institute
of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, Jiangsu, China
| | - Yazhou Zhou
- School
of Materials Science and Engineering, Jiangsu
University, Zhenjiang 212013, Jiangsu, China
- Max
Planck Institute for Polymer Research, Mainz 55128, Germany
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4
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Zeng T, Meng X, Sun S, Ling M, Zhang C, Yuan W, Cao D, Niu M, Zhang LY, Li CM. Tensile-Strained Holey Pd Metallene toward Efficient and Stable Electrocatalysis. SMALL METHODS 2023; 7:e2300791. [PMID: 37555503 DOI: 10.1002/smtd.202300791] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/01/2023] [Indexed: 08/10/2023]
Abstract
Noble metal-based metallenes are attracting intensive attention in energy catalysis, but it is still very challenging to precisely control the surface structures of metallenes for higher catalytic properties on account of their intrinsic thermodynamic instability. Herein, the synthesis of tensile-strained holey Pd metallene by oxidative etching is reported using hydrogen peroxide, which exhibits highly enhanced catalytic activity and stability in comparison with normal Pd metallene toward both oxygen reduction reaction and formic acid oxidation. The pre-prepared Pd metallene functions as a catalyst to decompose hydrogen peroxide, and the Pd atoms in amorphous regions of Pd metallene are preferentially removed by the introduced hydrogen peroxide during the etching process. The greatly enhanced ORR activity is mainly determined by the strong electrostatic repulsion between intermediate O* and the dopant O, which balances the adsorption strength of O* on Pd sites, ultimately endowing a weakened adsorption energy of O* on TH-Pd metallene. This work creates a facile and economical strategy to precisely shape metallene-based nanoarchitectures with broad applications for energy systems and sensing devices.
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Affiliation(s)
- Tiantian Zeng
- Institute of Materials for Energy and Environment, Institute of Biochemical Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Xiaomin Meng
- Institute of Materials for Energy and Environment, Institute of Biochemical Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Shiwei Sun
- Institute of Materials for Energy and Environment, Institute of Biochemical Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Miao Ling
- Institute of Materials for Energy and Environment, Institute of Biochemical Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Chuanhui Zhang
- Institute of Materials for Energy and Environment, Institute of Biochemical Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Weiyong Yuan
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Institute for Clean Energy and Advanced Materials, Southwest University, Chongqing, 400715, P. R. China
- Ningbo Research Institute, Zhejiang University, Ningbo, 315100, P. R. China
| | - Dapeng Cao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Mang Niu
- Institute of Materials for Energy and Environment, Institute of Biochemical Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Lian Ying Zhang
- Institute of Materials for Energy and Environment, Institute of Biochemical Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
- Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies, Institute for Clean Energy and Advanced Materials, Southwest University, Chongqing, 400715, P. R. China
| | - Chang Ming Li
- Institute for Materials Science and Devices, Suzhou University of Science and Technology, Suzhou, 215011, P. R. China
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5
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Cheng J, Lyu C, Dong G, Liu Y, Hu Y, Han B, Geng D, Zhao D. The Underlying Mechanism Trade-Off between Particle Proximity Effect and Low-Pt Loading for Oxygen Reduction and Methanol Oxidation Reaction Activity. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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6
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Wan K, Chu T, Li B, Ming P, Zhang C. Rational Design of Atomically Dispersed Metal Site Electrocatalysts for Oxygen Reduction Reaction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2203391. [PMID: 36717282 PMCID: PMC10104677 DOI: 10.1002/advs.202203391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 11/29/2022] [Indexed: 06/18/2023]
Abstract
Future renewable energy supply and a cleaner Earth greatly depend on various crucial catalytic reactions for the society. Atomically dispersed metal site electrocatalysts (ADMSEs) have attracted tremendous research interest and are considered as the next-generation promising oxygen reduction reaction (ORR) electrocatalysts due to the maximum atom utilization efficiency, tailorable catalytic sites, and tunable electronic structures. Despite great efforts have been devoted to the development of ADMSEs, the systematic summary for design principles of high-efficiency ADMSEs is not sufficiently highlighted for ORR. In this review, the authors first summarize the fundamental ORR mechanisms for ADMSEs, and further discuss the intrinsic catalytic mechanism from the perspective of theoretical calculation. Then, the advanced characterization techniques to identify the active sites and effective synthesis methods to prepare catalysts for ADMSEs are also showcased. Subsequently, a special emphasis is placed on effective strategies for the rational design of the advanced ADMSEs. Finally, the present challenges to be addressed in practical application and future research directions are also proposed to overcome the relevant obstacles for developing high-efficiency ORR electrocatalysts. This review aims to provide a deeper understanding for catalytic mechanisms and valuable design principles to obtain the advanced ADMSEs for sustainable energy conversion and storage techniques.
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Affiliation(s)
- Kechuang Wan
- Clean Energy Automotive Engineering Center and School of Automotive StudiesTongji University4800 Cao'an RoadShanghai201804China
| | - Tiankuo Chu
- Clean Energy Automotive Engineering Center and School of Automotive StudiesTongji University4800 Cao'an RoadShanghai201804China
| | - Bing Li
- Clean Energy Automotive Engineering Center and School of Automotive StudiesTongji University4800 Cao'an RoadShanghai201804China
| | - Pingwen Ming
- Clean Energy Automotive Engineering Center and School of Automotive StudiesTongji University4800 Cao'an RoadShanghai201804China
| | - Cunman Zhang
- Clean Energy Automotive Engineering Center and School of Automotive StudiesTongji University4800 Cao'an RoadShanghai201804China
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7
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The generation of carbon/oxygen double defects in FeP/CoP-N-C enhanced by β particles for photic driving degradation of levofloxacin. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Chang B, Wu S, Wang Y, Sun T, Cheng Z. Emerging single-atom iron catalysts for advanced catalytic systems. NANOSCALE HORIZONS 2022; 7:1340-1387. [PMID: 36097878 DOI: 10.1039/d2nh00362g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Due to the elusive structure-function relationship, traditional nanocatalysts always yield limited catalytic activity and selectivity, making them practically difficult to replace natural enzymes in wide industrial and biomedical applications. Accordingly, single-atom catalysts (SACs), defined as catalysts containing atomically dispersed active sites on a support material, strikingly show the highest atomic utilization and drastically boosted catalytic performances to functionally mimic or even outperform natural enzymes. The molecular characteristics of SACs (e.g., unique metal-support interactions and precisely located metal sites), especially single-atom iron catalysts (Fe-SACs) that have a similar catalytic structure to the catalytically active center of metalloprotease, enable the accurate identification of active centers in catalytic reactions, which afford ample opportunity for unraveling the structure-function relationship of Fe-SACs. In this review, we present an overview of the recent advances of support materials for anchoring an atomic dispersion of Fe. Subsequently, we highlight the structural designability of support materials as two sides of the same coin. Moreover, the applications described herein illustrate the utility of Fe-SACs in a broad scope of industrially and biologically important reactions. Finally, we present an outlook of the major challenges and opportunities remaining for the successful combination of single Fe atoms and catalysts.
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Affiliation(s)
- Baisong Chang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Shaolong Wu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Yang Wang
- Department of Medical Technology, Suzhou Chien-shiung Institute of Technology, Taicang 215411, P. R. China
| | - Taolei Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China.
| | - Zhen Cheng
- State Key Laboratory of Drug Research, Molecular Imaging Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, P. R. China.
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9
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Jiao P, Ye D, Zhu C, Wu S, Qin C, An C, Hu N, Deng Q. Non-precious transition metal single-atom catalysts for the oxygen reduction reaction: progress and prospects. NANOSCALE 2022; 14:14322-14340. [PMID: 36106572 DOI: 10.1039/d2nr03687h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The massive exploitation and use of fossil resources have created many negative issues, such as energy shortage and environmental pollution. It prompts us to turn our attention to the development of new energy technologies. This review summarizes the recent research progress of non-precious transition metal single-atom catalysts (NPT-SACs) for the oxygen reduction reaction (ORR) in Zn-air batteries and fuel cells. Some commonly used preparation methods and their advantages/disadvantages have been summarized. The factors affecting the ORR performances of NPT-SACs have been focused upon, such as the substrate type, coordination environment and nanocluster effects. The loading mass of a metal atom has a direct effect on the ORR performances. Some general strategies for stabilizing metal atoms are included. This review points out some existing challenges of NPT-SACs, and also provides ideas for designing and synthesizing NPT-SACs with excellent ORR performances. The large-scale preparation and commercialization of NPT-SACs with excellent ORR properties are prospected.
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Affiliation(s)
- Penggang Jiao
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology, and School of Mechanical Engineering, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China.
| | - Donghao Ye
- Wuhan Marine Electric Propulsion Research Institute, Wuhan 430064, China
| | - Chunyou Zhu
- Hunan Aerospace Kaitian Water Services Co., Ltd., Changsha 410100, China
| | - Shuai Wu
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology, and School of Mechanical Engineering, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China.
| | - Chunling Qin
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology, and School of Mechanical Engineering, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China.
| | - Cuihua An
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology, and School of Mechanical Engineering, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China.
| | - Ning Hu
- State Key Laboratory of Reliability and Intelligence Electrical Equipment, Hebei University of Technology, Tianjin, 300130, China
| | - Qibo Deng
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology, and School of Mechanical Engineering, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, China.
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10
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Han XQ, Yang T, Zhang FY, Lang ZL, Xu HL, Su ZM. Synergize curvature and confinement effects for Fe-, Co-, Ni- N2 sites on graphene nanobuds towards eNRR. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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11
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Jiao Y, Gu X, Zhai P, Wei Y, Liu W, Chen Q, Yang Z, Zuo J, Wang L, Xu T, Gong Y. Three-Dimensional Fe Single-Atom Catalyst for High-Performance Cathode of Zn-Air Batteries. NANO LETTERS 2022; 22:7386-7393. [PMID: 36121181 DOI: 10.1021/acs.nanolett.2c02159] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Designing cost-effective and highly active oxygen reduction reaction (ORR) catalysts is critical for the development of Zn-air batteries (ZABs). Iron-nitrogen-carbon (Fe-N-C) catalysts with single-atom Fe-Nx active sites are considered as one of the most promising alternatives to noble Pt but are hindered by unsatisfactory activity and durability. Herein, a NaCl template-assisted in situ pyrolysis technique is utilized to massively fabricate Fe-N-C single-atom catalysts (SACs) anchored on the three-dimensional open-pore carbon networks (denoted as 3D SAFe). The 3D SAFe catalyst exhibits ultrahigh activity with a half-wave potential of 0.90 V (vs RHE), benefiting from the enhanced mass diffusion and the increased amount of effective Fe-N4 sites. Consequently, the ZABs assembled with 3D SAFe deliver high peak power density up to 156 mW cm-2 and outstanding durability of 80 h, suggesting the application potential of the 3D SAFe catalyst. This work inspires the rational design and synthesis of highly efficient SACs for ZABs.
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Affiliation(s)
- Yuying Jiao
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Xiaokang Gu
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Pengbo Zhai
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Yi Wei
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Wei Liu
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Qian Chen
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Zhilin Yang
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Jinghan Zuo
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Lei Wang
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Tengfei Xu
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
| | - Yongji Gong
- School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China
- Center for Micro-Nano Innovation, Beihang University, Beijing 100191, China
- Key Laboratory of Intelligent Sensing Materials and Chip Integration Technology of Zhejiang Province, Hangzhou 310051, China
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12
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Gao D, Zheng L, Hu L, Li Y, Liu H, Xue Y, Liu F, Zhang J, Tang C. Nitrogen-Doped Carbon Nanotubes Filled with Fe3C Nanowires for Efficient Electrocatalytic Oxygen Reduction. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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MOF Derived Manganese Oxides Nanospheres Embedded in N-Doped Carbon for Oxygen Reduction Reaction. INORGANICS 2022. [DOI: 10.3390/inorganics10090126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Manganese oxides (MnOx) have been regarded as promising catalyst candidates for oxygen reduction reaction (ORR) due to their natural abundance and extremely low toxicity. However, the intrinsic low conductivity of MnOx limits their application. In this work, Mn oxide embedded in N doped porous carbon (MnOx@C-N) electrocatalysts were prepared through a facile zeolitic imidazolate framework (ZIF-8) template method for ORR. The structure, morphology, and composition of the prepared materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). Electrocatalytic performances of the prepared materials were investigated by linear sweep voltammetry. Benefiting from the well-defined morphology, high surface area, and porous structure, the MnOx@C-N electrocatalyst showed the highest ORR activity among all investigated materials with the limiting current density of 5.38 mA/cm2 at a rotation speed of 1600 rpm, the positive half-wave potential of 0.645 V vs. RHE, and the electron transfer number of 3.90. This work showcases an effective strategy to enhance ORR activity of MnOx.
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14
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Ao X, Ding Y, Nam G, Soule L, Jing P, Zhao B, Hwang JY, Jang JH, Wang C, Liu M. A Single-Atom Fe-N-C Catalyst with Ultrahigh Utilization of Active Sites for Efficient Oxygen Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203326. [PMID: 35789062 DOI: 10.1002/smll.202203326] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Indexed: 06/15/2023]
Abstract
Fe-N-C single-atom catalysts (SACs) are emerging as a promising class of electrocatalysts for the oxygen reduction reaction (ORR) to replace Pt-based catalysts. However, due to the limited loading of Fe for SACs and the inaccessibility of internal active sites, only a small portion of the sites near the external surface are able to contribute to the ORR activity. Here, this work reports a metal-organic framework-derived Fe-N-C SAC with a hierarchically porous and concave nanoarchitecture prepared through a facile but effective strategy, which exhibits superior electrocatalytic ORR activity with a half-wave potential of 0.926 V (vs RHE) in alkaline media and 0.8 V (vs RHE) in acidic media while maintaining excellent stability. The superior ORR activity of the as-designed catalyst stems from the unique architecture, where the hierarchically porous architecture contains micropores as Fe SAC anchoring sites, meso-/macro-pores as accessible channels, and concave shell for increasing external surface area. The unique architecture has dramatically enhanced the utilization of previously blocked internal active sites, as confirmed by a high turnover frequency of 3.37 s-1 and operando X-ray absorption spectroscopy analysis with a distinct shift of adsorption edge.
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Affiliation(s)
- Xiang Ao
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yong Ding
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Gyutae Nam
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Luke Soule
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Panpan Jing
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Bote Zhao
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jee Youn Hwang
- Catalysis & Computational Science Research Department, Hyundai, Uiwang-si, Gyeonggi-do, 16082, Republic of Korea
| | - Ji-Hoon Jang
- Catalysis & Computational Science Research Department, Hyundai, Uiwang-si, Gyeonggi-do, 16082, Republic of Korea
| | - Chundong Wang
- School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Meilin Liu
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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