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Wang J, Pan F, Chen W, Li B, Yang D, Ming P, Wei X, Zhang C. Pt-Based Intermetallic Compound Catalysts for the Oxygen Reduction Reaction: Structural Control at the Atomic Scale to Achieve a Win–Win Situation Between Catalytic Activity and Stability. ELECTROCHEM ENERGY R 2023. [DOI: 10.1007/s41918-022-00141-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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2
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Lin F, Li M, Zeng L, Luo M, Guo S. Intermetallic Nanocrystals for Fuel-Cells-Based Electrocatalysis. Chem Rev 2023; 123:12507-12593. [PMID: 37910391 DOI: 10.1021/acs.chemrev.3c00382] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Electrocatalysis underpins the renewable electrochemical conversions for sustainability, which further replies on metallic nanocrystals as vital electrocatalysts. Intermetallic nanocrystals have been known to show distinct properties compared to their disordered counterparts, and been long explored for functional improvements. Tremendous progresses have been made in the past few years, with notable trend of more precise engineering down to an atomic level and the investigation transferring into more practical membrane electrode assembly (MEA), which motivates this timely review. After addressing the basic thermodynamic and kinetic fundamentals, we discuss classic and latest synthetic strategies that enable not only the formation of intermetallic phase but also the rational control of other catalysis-determinant structural parameters, such as size and morphology. We also demonstrate the emerging intermetallic nanomaterials for potentially further advancement in energy electrocatalysis. Then, we discuss the state-of-the-art characterizations and representative intermetallic electrocatalysts with emphasis on oxygen reduction reaction evaluated in a MEA setup. We summarize this review by laying out existing challenges and offering perspective on future research directions toward practicing intermetallic electrocatalysts for energy conversions.
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Affiliation(s)
- Fangxu Lin
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Menggang Li
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Lingyou Zeng
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Mingchuan Luo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Shaojun Guo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
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3
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Yu S, Bi L, Xie X, Lu J, Chen A, Jiang H. Facile synthesis of L1 0-PtFe/C intermetallic catalysts with superior catalytic durability for the oxygen reduction reaction. Chem Commun (Camb) 2023; 59:12270-12273. [PMID: 37750926 DOI: 10.1039/d3cc03742h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
An o-PtFe/C intermetallic catalyst was prepared by a facile thermal reduction method with the average particle size of only 6.6 nm in the presence of urea. The loss of mass activity is only 25.9% after 50 000 cycles. This work provides guidance on the suppression of grain coarsening for high-temperature synthesis of Pt-based intermetallic catalysts.
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Affiliation(s)
- Shengwei Yu
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai 200237, China.
| | - Liyuan Bi
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai 200237, China.
| | - Xiang Xie
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai 200237, China.
| | - Jiyuan Lu
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai 200237, China.
| | - Aiping Chen
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai 200237, China.
| | - Haibo Jiang
- Shanghai Engineering Research Center of Hierarchical Nanomaterials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai 200237, China.
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Chen H, Liu J, Wu X, Ye C, Zhang J, Luo JL, Fu XZ. Pt-Co Electrocatalysts: Syntheses, Morphologies, and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204100. [PMID: 35996763 DOI: 10.1002/smll.202204100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Pt-Co electrocatalysts have attracted significant attention because of their excellent performance in many electrochemical reactions. This review focuses on Pt-Co electrocatalysts designed and prepared for electrocatalytic applications. First, the various synthetic methods and synthesis mechanisms are systematically summarized; typical examples and core synthesis parameters are discussed for regulating the morphology and structure. Then, starting with the design and structure-activity relationship of catalysts, the research progress of the morphologies and structures of Pt-Co electrocatalysts obtained based on various strategies, the structure-activity relationship between them, and their properties are summarized. In addition, the important electrocatalytic applications and mechanisms of Pt-Co catalysts, including electrocatalytic oxidation/reduction and bifunctional catalytic reactions, are described and summarized, and their high catalytic activities are discussed on the basis of their mechanism and active sites. Moreover, the advanced electrochemical in situ characterization techniques are summarized, and the challenges and direction concerning the development of high-performance Pt-Co catalysts in electrocatalysis are discussed.
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Affiliation(s)
- Hao Chen
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Jianwen Liu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Xuexian Wu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Chunyi Ye
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Jiujun Zhang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
- Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Jing-Li Luo
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Xian-Zhu Fu
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
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Mao ZX, Zhang W, Yang X, Deng Y, Li J, Li J, Wei Z. Unusual Role of the Surfactant in the Self-Assembly of Pt Alloy in Ordered Mesoporous Carbon: Tuning the Nanocluster Size. ACS APPLIED MATERIALS & INTERFACES 2022; 14:42347-42355. [PMID: 36097330 DOI: 10.1021/acsami.2c10715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In the one-step self-assembly synthesis of metallic nanocrystals in ordered mesoporous carbon (OMC), the surfactant functionalizes well as the structure directing agent and mesopore template. Interestingly, this work demonstrates another unusual role the surfactant plays: tuning the size of the nanocrystals. Our investigation shows that the decreasing molecular weight of the PS segment of PEO-b-PS leads to sequentially reduced PtRu particle sizes of 4.4, 3.9, and 2.9 nm, while F127 which has a distinctly smaller hydrophobic PO domain with a bending structure in the micelles successfully results in sub-2 nm PtM (M = Ru, Ir, Rh, Pd) nanoclusters in OMC. This well indicates that the nanocluster size is largely decided by the volume of the hydrophobic segment of the surfactant to which the metallic precursor is linked. The smaller the volume, the fewer the precursor molecules are adsorbed, and the smaller the alloy nanoclusters. In the electrocatalytic methanol oxidation reaction, the mass activity of PtRu-1.6/OMC with 1.6 nm PtRu clusters at 0.87 V reaches 1.07 A mgPt-1, which is 2.9 times that of commercial PtRu/C with an average alloy size of 2.7 nm. In principle, a wide range of ultrafine metallic clusters embedded in OMC can be prepared via this route for various applications.
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Affiliation(s)
- Zhan Xin Mao
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing 401331, China
- China Automotive Engineering Research Institute Corporation Limited, No. 9 Jinyu Avenue, Chongqing 401122, China
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Wenjing Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing 401331, China
| | - Xuanyu Yang
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Yonghui Deng
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Jingwei Li
- Multi-scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering, Chongqing University; Chongqing 400044 P. R. China
| | - Jing Li
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing 401331, China
| | - Zidong Wei
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Road 55, Chongqing 401331, China
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6
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Kumar A, Dutta S, Kim S, Kwon T, Patil SS, Kumari N, Jeevanandham S, Lee IS. Solid-State Reaction Synthesis of Nanoscale Materials: Strategies and Applications. Chem Rev 2022; 122:12748-12863. [PMID: 35715344 DOI: 10.1021/acs.chemrev.1c00637] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nanomaterials (NMs) with unique structures and compositions can give rise to exotic physicochemical properties and applications. Despite the advancement in solution-based methods, scalable access to a wide range of crystal phases and intricate compositions is still challenging. Solid-state reaction (SSR) syntheses have high potential owing to their flexibility toward multielemental phases under feasibly high temperatures and solvent-free conditions as well as their scalability and simplicity. Controlling the nanoscale features through SSRs demands a strategic nanospace-confinement approach due to the risk of heat-induced reshaping and sintering. Here, we describe advanced SSR strategies for NM synthesis, focusing on mechanistic insights, novel nanoscale phenomena, and underlying principles using a series of examples under different categories. After introducing the history of classical SSRs, key theories, and definitions central to the topic, we categorize various modern SSR strategies based on the surrounding solid-state media used for nanostructure growth, conversion, and migration under nanospace or dimensional confinement. This comprehensive review will advance the quest for new materials design, synthesis, and applications.
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Affiliation(s)
- Amit Kumar
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Soumen Dutta
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Seonock Kim
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Taewan Kwon
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Santosh S Patil
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Nitee Kumari
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Sampathkumar Jeevanandham
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - In Su Lee
- Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR) and Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.,Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Seoul 03722, Korea
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7
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Advanced Pt-based intermetallic nanocrystals for the oxygen reduction reaction. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63991-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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8
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PtCo-Based nanocatalyst for oxygen reduction reaction: Recent highlights on synthesis strategy and catalytic mechanism. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.03.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Wang Y, Han C, Xie P, Li H, Yao P, Cao J, Ruan M, Song P, Gong X, Lu M, Xu W. Highly dispersed PtNi nanoparticles modified carbon black as high-performanced electrocatalyst for oxygen reduction in acidic medium. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115908] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Jin C, Lou Y, Liu J, Wang F. Crystal Orientation in Pt-Based Alloys Induced by W(CO) 6: Driving Oxygen Electroreduction Catalysis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:45406-45415. [PMID: 34542999 DOI: 10.1021/acsami.1c10790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Integrating crystal orientation as well as structural and compositional advantages into one catalyst might be a promising strategy for high-performance Pt-based catalysts for proton-exchange membrane fuel cells. Herein, by introducing W(CO)6 as a structure-oriented template, Pt-based alloys with a well-defined crystal orientation along the (111) facet were obtained. The oxygen reduction reaction mass and specific activities of the crystal-facet-tuned alloys reach a new level. Moreover, the outstanding durability stems from the combination of their exposed crystal facets and incorporated W. The density functional theory calculation results reveal that the formation of the preferred (111) alloys can be attributed to the lower free energy of (111) facets and the weaker adsorption of CO released by W(CO)6. This proposed synthesis strategy of using transition-metal carbonyl compounds as additives to synthesize alloys with strong crystal orientation may open a door to the design of various alloy catalysts with ultrahigh activity.
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Affiliation(s)
- Chun Jin
- State Key Laboratory of Chemical Resource Engineering; Beijing Key Laboratory of Electrochemical Process and Technology for Materials; Beijing University of Chemical Technology, Beijing 100029, P R China
| | - Yiwei Lou
- State Key Laboratory of Chemical Resource Engineering; Beijing Key Laboratory of Electrochemical Process and Technology for Materials; Beijing University of Chemical Technology, Beijing 100029, P R China
| | - Jingjun Liu
- State Key Laboratory of Chemical Resource Engineering; Beijing Key Laboratory of Electrochemical Process and Technology for Materials; Beijing University of Chemical Technology, Beijing 100029, P R China
| | - Feng Wang
- State Key Laboratory of Chemical Resource Engineering; Beijing Key Laboratory of Electrochemical Process and Technology for Materials; Beijing University of Chemical Technology, Beijing 100029, P R China
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11
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He S, Liu Y, Zhan H, Guan L. Direct Thermal Annealing Synthesis of Ordered Pt Alloy Nanoparticles Coated with a Thin N-Doped Carbon Shell for the Oxygen Reduction Reaction. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02434] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Suqiong He
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002 Fujian, China
- College of Material Science and Engineering, Fuzhou University, Fuzhou 350108 Fujian, China
| | - Yang Liu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002 Fujian, China
| | - Hongbing Zhan
- College of Material Science and Engineering, Fuzhou University, Fuzhou 350108 Fujian, China
| | - Lunhui Guan
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002 Fujian, China
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12
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Zhang X, Li H, Yang J, Lei Y, Wang C, Wang J, Tang Y, Mao Z. Recent advances in Pt-based electrocatalysts for PEMFCs. RSC Adv 2021; 11:13316-13328. [PMID: 35423850 PMCID: PMC8697640 DOI: 10.1039/d0ra05468b] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/28/2020] [Indexed: 01/30/2023] Open
Abstract
In order to reduce the cost and improve the performance of proton exchange membrane fuel cells (PEMFCs), it is imperative to further enhance the activity and durability of Pt based electrocatalysts for the oxygen reduction reaction (ORR). This article analyzes the latest advances in Pt-based ORR electrocatalysts, including the Pt alloys, Pt–M core–shell structures, particle size effects, support effects, doping in Pt/PtM and post treatment. In addition, the performance of some of the developed novel electrocatalysts in membrane electrode assemblies (MEA) is also included for comparison, as they are rarely available and the superior activity and durability exhibited in RDE frequently doesn't translate into MEA. In this paper, the latest progress in the design of Pt-based ORR electrocatalysts is reviewed, including the understanding of research progress in the synthesis of high activity and high stability catalysts.![]()
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Affiliation(s)
- Xuewei Zhang
- Weichai Power Intelligent Manufacturing Joint Research Institute, INET, Tsinghua University Beijing China.,Weichai Power Co., Ltd. Weifang 261061 Shandong China
| | - Haiou Li
- Weichai Power Intelligent Manufacturing Joint Research Institute, INET, Tsinghua University Beijing China.,Weichai Power Co., Ltd. Weifang 261061 Shandong China
| | - Jian Yang
- Weichai Power Intelligent Manufacturing Joint Research Institute, INET, Tsinghua University Beijing China
| | - Yijie Lei
- Weichai Power Intelligent Manufacturing Joint Research Institute, INET, Tsinghua University Beijing China
| | - Cheng Wang
- Weichai Power Intelligent Manufacturing Joint Research Institute, INET, Tsinghua University Beijing China
| | - Jianlong Wang
- Weichai Power Intelligent Manufacturing Joint Research Institute, INET, Tsinghua University Beijing China
| | - Yaping Tang
- Weichai Power Intelligent Manufacturing Joint Research Institute, INET, Tsinghua University Beijing China
| | - Zongqiang Mao
- Weichai Power Intelligent Manufacturing Joint Research Institute, INET, Tsinghua University Beijing China
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14
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Peng L, Zhou L, Kang W, Li R, Qu K, Wang L, Li H. Electrospinning Synthesis of Carbon-Supported Pt 3Mn Intermetallic Nanocrystals and Electrocatalytic Performance towards Oxygen Reduction Reaction. NANOMATERIALS 2020; 10:nano10091893. [PMID: 32971762 PMCID: PMC7559926 DOI: 10.3390/nano10091893] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/11/2020] [Accepted: 09/12/2020] [Indexed: 11/29/2022]
Abstract
To realize the large-scale application of fuel cells, it is still a great challenge to improve the performance and reduce the cost of cathode catalysts towards oxygen reduction reaction (ORR). In this work, carbon-supported ordered Pt3Mn intermetallic catalysts were prepared by thermal annealing electrospun polyacrylonitrile nanofibers containing Platinum(II) acetylacetonate/ Manganese(III) acetylacetonate. Compared with its counterparts, the ordered Pt3Mn intermetallic obtained at 950 °C exhibits a more positive half-potential and higher kinetic current density during the ORR process. Benefiting from their defined stoichiometry and crystal structure, the Mn atoms in Pt3Mn intermetallic can modulate well the geometric and electronic structure of surface Pt atoms, endowing Pt3Mn catalyst with an enhanced ORR catalytic activity. Moreover, it also has a better catalytic stability and methanol tolerance than commercial Pt/C catalyst. Our study provides a new strategy to fabricate a highly active and durable Pt3Mn intermetallic electrocatalyst towards ORR.
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15
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Zhou M, Li C, Fang J. Noble-Metal Based Random Alloy and Intermetallic Nanocrystals: Syntheses and Applications. Chem Rev 2020; 121:736-795. [DOI: 10.1021/acs.chemrev.0c00436] [Citation(s) in RCA: 129] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ming Zhou
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
| | - Can Li
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
| | - Jiye Fang
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States
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16
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Amperometric hydrazine sensor based on the use of a gold nanoparticle-modified nanocomposite consisting of porous polydopamine, multiwalled carbon nanotubes and reduced graphene oxide. Mikrochim Acta 2020; 187:89. [DOI: 10.1007/s00604-019-4014-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 11/08/2019] [Indexed: 01/10/2023]
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17
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He Y, Wu YL, Zhu XX, Wang JN. Remarkable Improvement of the Catalytic Performance of PtFe Nanoparticles by Structural Ordering and Doping. ACS APPLIED MATERIALS & INTERFACES 2019; 11:11527-11536. [PMID: 30821140 DOI: 10.1021/acsami.9b01810] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
To achieve fuel cell commercialization, the performance improvement and cost reduction of catalysts are still the main challenges. To enhance the catalytic activity and durability for oxygen reduction reaction (ORR), we prepare Au-PtFe particles entrapped in a porous carbon and then convert them to have a fine-grained and highly ordered intermetallic structure. The optimal Au-PtFe particles in catalyzing ORR exhibit initial specific and mass activities 9 times higher than the commercial catalyst of Pt/C. Such a large enhancement is much higher than most of the Pt-based ordered intermetallic catalysts reported in the literature. Accelerated durability testing induces little degradation of the catalytic activity to the ordered structure, particularly the Au-doped one, after potential cycling for many thousands of cycles under harsh electrochemical conditions involving an acidic medium and a high potential range of 0.66-1.3 V. This is in big contrast with the large degradation shown by most previous catalysts. The excellent activity and durability are attributed to synergistic effects of the fine-grained and ordered structure of the particles, the confining support of the porous carbon, and the homogeneous incorporation of a trace amount of Au. The new intermetallic catalyst of Au-PtFe/C represents a new strategy for performance enhancement and cost reduction and thus promotes practical applications of proton-exchange membrane fuel cells.
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Affiliation(s)
- Yang He
- Nanocarbon and Manufacturing Innovation Center, School of Mechanical and Power Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
| | - Yan Lin Wu
- Nanocarbon and Manufacturing Innovation Center, School of Mechanical and Power Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
| | - Xin Xing Zhu
- Nanocarbon and Manufacturing Innovation Center, School of Mechanical and Power Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
| | - Jian Nong Wang
- Nanocarbon and Manufacturing Innovation Center, School of Mechanical and Power Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , P. R. China
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18
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Affiliation(s)
- Leonard Rößner
- Faculty of Natural Sciences, Institute of Chemistry, Materials for Innovative Energy Concepts, Chemnitz University of Technology, 09107 Chemnitz, Germany
| | - Marc Armbrüster
- Faculty of Natural Sciences, Institute of Chemistry, Materials for Innovative Energy Concepts, Chemnitz University of Technology, 09107 Chemnitz, Germany
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19
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Gao X, Chen S, Deng J, Ibraheem S, Li J, Zhou Q, Lan H, Zou X, Wei Z. High temperature self-assembly one-step synthesis of a structurally ordered PtFe catalyst for the oxygen reduction reaction. Chem Commun (Camb) 2019; 55:12028-12031. [DOI: 10.1039/c9cc05714e] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we present a high-temperature self-assembly strategy that directly allows the transformation of adsorbed Pt(NH3)42+ and Fe3+ sources into structurally ordered face-centered tetragonal (fct)-PtFe alloy NPs (2.6 ± 0.2 nm).
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Affiliation(s)
- Xiaoyan Gao
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Siguo Chen
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Jianghai Deng
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Shumaila Ibraheem
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Jia Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Qiuyun Zhou
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Huiying Lan
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Xiao Zou
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Zidong Wei
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
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