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He Y, Zhou X, Jia Y, Li H, Wang Y, Liu Y, Tan Q. Advances in Transition-Metal-Based Dual-Atom Oxygen Electrocatalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206477. [PMID: 37147778 DOI: 10.1002/smll.202206477] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/31/2023] [Indexed: 05/07/2023]
Abstract
Oxygen electrocatalysis has aroused considerable interest over the past years because of the new energy technologies boom in hydrogen energy and metal-air battery. However, due to the sluggish kinetic of the four-electron transfer process in oxygen reduction reaction and oxygen evolution reaction, the electro-catalysts are urgently needed to accelerate the oxygen electrocatalysis. Benefit from the high atom utilization efficiency, unprecedentedly high catalytic activity, and selectivity, single-atom catalysts (SACs) are considered the most promising candidate to replace the traditional Pt-group-metal catalysts. Compared with SACs, the dual-atom catalysts (DACs) are attracting more attraction including higher metal loading, more versatile active sites, and excellent catalytic activity. Therefore, it is essential to explore the new universal methods approaching to the preparation, characterization, and to elucidate the catalytic mechanisms of the DACs. In this review, several general synthetic strategies and structural characterization methods of DACs are introduced and the involved oxygen catalytic mechanisms are discussed. Moreover, the state-of-the-art electrocatalytic applications including fuel cells, metal-air batteries, and water splitting have been sorted out at present. The authors hope this review has given some insights and inspiration to the researches about DACs in electro-catalysis.
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Affiliation(s)
- Yuting He
- State Key Laboratory for Mechanical Behaviour of Materials, School of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Xingchen Zhou
- State Key Laboratory for Mechanical Behaviour of Materials, School of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Yufei Jia
- State Key Laboratory for Mechanical Behaviour of Materials, School of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Hongtao Li
- State Key Laboratory for Mechanical Behaviour of Materials, School of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Yi Wang
- State Key Laboratory for Mechanical Behaviour of Materials, School of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Yongning Liu
- State Key Laboratory for Mechanical Behaviour of Materials, School of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Qiang Tan
- State Key Laboratory for Mechanical Behaviour of Materials, School of Materials Science & Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
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2
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Vijay AK, Meyerstein D, Marks V, Albo Y. Reaction of H 2 with polyoxometalate supported Rhodium(0) and Iridium(0) nanoparticles in aqueous suspensions: a kinetic study. NEW J CHEM 2022. [DOI: 10.1039/d2nj02253b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of the reaction between Rh0 and Ir0 NPs with H2 was measured in the absence of an electrical bias via monitoring the catalytic reduction of PW12O403− and it was compared to the previous results of Pt0 NPs.
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Affiliation(s)
- Aswin Kottapurath Vijay
- Department of Chemical Science and The Radical Research Center, Ariel University, Ariel, Israel
- Department of Chemistry Ben-Gurion University, Beer-Sheva, Israel
| | - Dan Meyerstein
- Department of Chemical Science and The Radical Research Center, Ariel University, Ariel, Israel
- Department of Chemistry Ben-Gurion University, Beer-Sheva, Israel
| | - Vered Marks
- Department of Chemical Science Ariel University, Ariel, Israel
| | - Yael Albo
- Department of Chemical Engineering and The Radical Research Center Ariel University, Ariel, Israel
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3
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Recovery of High Purity Chlorine by Cu‐Doped Fe
2
O
3
in Nitrogen Containing Carbon Matrix: A Bifunctional Electrocatalyst for HCl Electrolysis. ChemElectroChem 2021. [DOI: 10.1002/celc.202100695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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4
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Serrano‐Maldonado A, Reina A, Portales‐Martínez B, Guerrero‐Ríos I. Thioglycerol‐Stabilized Rhodium Nanoparticles in Biphasic Medium as Catalysts in Multistep Reactions. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000451] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Alejandro Serrano‐Maldonado
- Departamento de Química Inorgánica y Nuclear Universidad Nacional Autónoma de México Av. Universidad 3000 04510 Ciudad de México México
| | - Antonio Reina
- Departamento de Química Inorgánica y Nuclear Universidad Nacional Autónoma de México Av. Universidad 3000 04510 Ciudad de México México
| | - Benjamín Portales‐Martínez
- CONACYT, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada Laboratorio Nacional de Conversión y Almacenamiento de Energía Instituto Politécnico Nacional Calzada Legaría 694, Col. Irrigación 11500 Ciudad de México Mexico
| | - Itzel Guerrero‐Ríos
- Departamento de Química Inorgánica y Nuclear Universidad Nacional Autónoma de México Av. Universidad 3000 04510 Ciudad de México México
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5
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Meng X, Ma C, Jiang L, Si R, Meng X, Tu Y, Yu L, Bao X, Deng D. Distance Synergy of MoS
2
‐Confined Rhodium Atoms for Highly Efficient Hydrogen Evolution. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003484] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiangyu Meng
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100039 China
- State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Chao Ma
- College of Materials Science and Engineering Hunan University Changsha 410082 China
| | - Luozhen Jiang
- University of Chinese Academy of Sciences Beijing 100039 China
- Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201204 China
| | - Rui Si
- Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201204 China
| | - Xianguang Meng
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
| | - Yunchuan Tu
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
| | - Liang Yu
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100039 China
| | - Xinhe Bao
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100039 China
| | - Dehui Deng
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100039 China
- State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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6
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Meng X, Ma C, Jiang L, Si R, Meng X, Tu Y, Yu L, Bao X, Deng D. Distance Synergy of MoS
2
‐Confined Rhodium Atoms for Highly Efficient Hydrogen Evolution. Angew Chem Int Ed Engl 2020; 59:10502-10507. [DOI: 10.1002/anie.202003484] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 03/24/2020] [Indexed: 01/14/2023]
Affiliation(s)
- Xiangyu Meng
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100039 China
- State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Chao Ma
- College of Materials Science and Engineering Hunan University Changsha 410082 China
| | - Luozhen Jiang
- University of Chinese Academy of Sciences Beijing 100039 China
- Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201204 China
| | - Rui Si
- Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201204 China
| | - Xianguang Meng
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
| | - Yunchuan Tu
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
| | - Liang Yu
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100039 China
| | - Xinhe Bao
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100039 China
| | - Dehui Deng
- State Key Laboratory of Catalysis,iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100039 China
- State Key Laboratory of Physical Chemistry of Solid Surfaces,iChEM College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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7
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Matsagar BM, Wang Z, Sakdaronnarong C, Chen SS, Tsang DCW, Wu KC. Effect of Solvent, Role of Formic Acid and Rh/C Catalyst for the Efficient Liquefaction of Lignin. ChemCatChem 2019. [DOI: 10.1002/cctc.201901010] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Zheng‐Yen Wang
- Department of Chemical EngineeringNational Taiwan University Taipei 10617 Taiwan
| | - Chularat Sakdaronnarong
- Department of Chemical Engineering Faculty of EngineeringMahidol University Pathom 73170 Thailand
| | - Season S. Chen
- Department of Civil and Environmental EngineeringThe Hong Kong Polytechnic University Hong Kong ZS946 P. R. China
| | - Daniel C. W. Tsang
- Department of Civil and Environmental EngineeringThe Hong Kong Polytechnic University Hong Kong ZS946 P. R. China
| | - Kevin C.‐W. Wu
- Department of Chemical EngineeringNational Taiwan University Taipei 10617 Taiwan
- Center of Atomic Initiative for New Materials (AI-MAT)National Taiwan University Taipei 10617 Taiwan
- International Graduate Program of Molecular Science and TechnologyNational Taiwan University (NTU-MST) Taipei 10617 Taiwan
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8
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Yan Y, Wang Q, Xiang Z, Yang Y. Separation of Pt(IV), Pd(II), Ru(III), and Rh(III) from chloride medium using liquid–liquid extraction with mixed imidazolium-based ionic liquids. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1440304] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Yan Yan
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, PR China
| | - Qi Wang
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, PR China
| | - Zeyang Xiang
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, PR China
| | - Yanzhao Yang
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, PR China
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9
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Serrano-Maldonado A, Rozenel SS, Jimenez-Santiago JL, Guerrero-Ríos I, Martin E. Rh nanoparticles from thiolate dimers: selective and reusable hydrogenation catalysts in ionic liquids. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00227d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Thiolate-capped RhNPs in imidazolium-based ionic liquids were synthesized from [Rh(μ-SR)(COD)]2 dimmers under H2 pressure without external addition of ligand stabilizers, preserving thiolate integrity on the nanoparticle surface. This nanoparticulated systems showed a remarkable selectivity that led to their application in the one pot reductive N-alkylation to produce amines.
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Affiliation(s)
- A. Serrano-Maldonado
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - S. S. Rozenel
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - J. L. Jimenez-Santiago
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - I. Guerrero-Ríos
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - E. Martin
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
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10
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Mamtani K, Jain D, Co AC, Ozkan US. Investigation of Chloride Poisoning Resistance for Nitrogen-Doped Carbon Nanostructures as Oxygen Depolarized Cathode Catalysts in Acidic Media. Catal Letters 2017. [DOI: 10.1007/s10562-017-2205-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Luo Z, Tan C, Zhang X, Chen J, Cao X, Li B, Zong Y, Huang L, Huang X, Wang L, Huang W, Zhang H. Preparation of Cobalt Sulfide Nanoparticle-Decorated Nitrogen and Sulfur Co-Doped Reduced Graphene Oxide Aerogel Used as a Highly Efficient Electrocatalyst for Oxygen Reduction Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:5920-5926. [PMID: 27592615 DOI: 10.1002/smll.201602615] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Indexed: 05/06/2023]
Abstract
A novel 3D cobalt sulfide (CoS) nanoparticle-decorated nitrogen and sulfur co-doped reduced graphene oxide aerogel (NSGA), referred to as CoS/NSGA, is prepared via three sequential processes, i.e., freeze-drying, annealing, and sulfidization. The obtained CoS/NSGA exhibits excellent electrocatalytic performance in the alkaline solution.
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Affiliation(s)
- Zhimin Luo
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Chaoliang Tan
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Xiao Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Junze Chen
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Xiehong Cao
- College of Materials Science and Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China
| | - Bing Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Singapore, 138634, Singapore
| | - Yun Zong
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Singapore, 138634, Singapore
| | - Ling Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Xiao Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Display (KLOEID) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, 210046, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
- Key Laboratory for Organic Electronics and Information Display (KLOEID) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, 210046, China
| | - Hua Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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12
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Gatselou V, Christodouleas DC, Kouloumpis A, Gournis D, Giokas DL. Determination of phenolic compounds using spectral and color transitions of rhodium nanoparticles. Anal Chim Acta 2016; 932:80-7. [DOI: 10.1016/j.aca.2016.05.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 05/17/2016] [Accepted: 05/20/2016] [Indexed: 10/21/2022]
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13
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Rhodium nanoparticle-modified screen-printed graphite electrodes for the determination of hydrogen peroxide in tea extracts in the presence of oxygen. Talanta 2015; 134:482-487. [DOI: 10.1016/j.talanta.2014.11.033] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 11/07/2014] [Accepted: 11/17/2014] [Indexed: 11/21/2022]
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14
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Ji J, Lv S, Liu H, Wang F, Li Z, Liu J, Song Y, Ja Y. Carbon-Supported Rh17S15-Rh Electrocatalysts Applied in the Oxygen Reduction Reaction. ELECTROANAL 2014. [DOI: 10.1002/elan.201400069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Li C, Shao Z, Pang M, Williams CT, Zhang X, Liang C. Carbon Nanotubes Supported Mono- and Bimetallic Pt and Ru Catalysts for Selective Hydrogenation of Phenylacetylene. Ind Eng Chem Res 2012. [DOI: 10.1021/ie202342a] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chuang Li
- Laboratory of Advanced Materials
and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhengfeng Shao
- Laboratory of Advanced Materials
and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Min Pang
- Laboratory of Advanced Materials
and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Christopher T. Williams
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina
29208, United States
| | - Xiongfu Zhang
- Laboratory of Advanced Materials
and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Changhai Liang
- Laboratory of Advanced Materials
and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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16
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Jin C, Nagaiah TC, Xia W, Bron M, Schuhmann W, Muhler M. Polythiophene-assisted vapor phase synthesis of carbon nanotube-supported rhodium sulfide as oxygen reduction catalyst for HCl electrolysis. CHEMSUSCHEM 2011; 4:927-930. [PMID: 21433301 DOI: 10.1002/cssc.201000315] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Revised: 02/15/2011] [Indexed: 05/30/2023]
Affiliation(s)
- Chen Jin
- Laboratory of Industrial Chemistry, Ruhr University Bochum, Bochum, Germany
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17
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Jin C, Nagaiah TC, Xia W, Spliethoff B, Wang S, Bron M, Schuhmann W, Muhler M. Metal-free and electrocatalytically active nitrogen-doped carbon nanotubes synthesized by coating with polyaniline. NANOSCALE 2010; 2:981-987. [PMID: 20648296 DOI: 10.1039/b9nr00405j] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Nitrogen doping of multi-walled carbon nanotubes (CNTs) was achieved by the carbonization of a polyaniline (PANI) coating. First, the CNTs were partially oxidized with KMnO4 to obtain oxygen-containing functional groups. Depending on the KMnO4 loading, thin layers of birnessite-type MnO2 (10 wt% and 30 wt%) were obtained by subsequent thermal decomposition. CNT-supported MnO2 was then used for the oxidative polymerization of aniline in acidic solution, and the resulting PANI-coated CNTs were finally heated at 550 degrees C and 850 degrees C in inert gas. The samples were characterized by transmission electron microscopy and X-ray photoelectron spectroscopy. A thin layer of carbonized PANI was observed on the CNT surface, and the surface nitrogen concentration of samples prepared from 30% MnO2 was found to amount to 7.6 at% and 3.8 at% after carbonization at 550 degrees C and 850 degrees C, respectively. These CNTs with nitrogen-containing shell were further studied by electrochemical impedance spectroscopy and used as catalysts for the oxygen reduction reaction. The sample synthesized from 30 wt% MnO2 followed by carbonization at 850 degrees C showed the best electrochemical performance indicating efficient nitrogen doping.
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Affiliation(s)
- Chen Jin
- Laboratory of Industrial Chemistry, Ruhr-University Bochum, 44780, Bochum, Germany
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