1
|
Onajah S, Sarkar R, Islam MS, Lalley M, Khan K, Demir M, Abdelhamid HN, Farghaly AA. Silica-Derived Nanostructured Electrode Materials for ORR, OER, HER, CO 2RR Electrocatalysis, and Energy Storage Applications: A Review. CHEM REC 2024; 24:e202300234. [PMID: 38530060 DOI: 10.1002/tcr.202300234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 02/13/2024] [Indexed: 03/27/2024]
Abstract
Silica-derived nanostructured catalysts (SDNCs) are a class of materials synthesized using nanocasting and templating techniques, which involve the sacrificial removal of a silica template to generate highly porous nanostructured materials. The surface of these nanostructures is functionalized with a variety of electrocatalytically active metal and non-metal atoms. SDNCs have attracted considerable attention due to their unique physicochemical properties, tunable electronic configuration, and microstructure. These properties make them highly efficient catalysts and promising electrode materials for next generation electrocatalysis, energy conversion, and energy storage technologies. The continued development of SDNCs is likely to lead to new and improved electrocatalysts and electrode materials. This review article provides a comprehensive overview of the recent advances in the development of SDNCs for electrocatalysis and energy storage applications. It analyzes 337,061 research articles published in the Web of Science (WoS) database up to December 2022 using the keywords "silica", "electrocatalysts", "ORR", "OER", "HER", "HOR", "CO2RR", "batteries", and "supercapacitors". The review discusses the application of SDNCs for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), hydrogen evolution reaction (HER), carbon dioxide reduction reaction (CO2RR), supercapacitors, lithium-ion batteries, and thermal energy storage applications. It concludes by discussing the advantages and limitations of SDNCs for energy applications.
Collapse
Affiliation(s)
- Sammy Onajah
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, 60439, United States
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois, 60637, United States
| | - Rajib Sarkar
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia, 23284-2006, United States
| | - Md Shafiul Islam
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, 60439, United States
| | - Marja Lalley
- Department of Chemistry, University of Chicago, Chicago, Illinois, 60637, United States
| | - Kishwar Khan
- Department of Chemistry, City University of Hong Kong, Hong Kong, 999077, China
| | - Muslum Demir
- Department of Chemical Engineering, Bogazici University, 34342, Istanbul, Turkey
- TUBITAK Marmara Research Center, Material Institute, Gebze, 41470, Turkey
| | - Hani Nasser Abdelhamid
- Advanced Multifunctional Materials Laboratory, Department of Chemistry, Assiut University, Assiut, 71516, Egypt
- Egyptian Russian University, Badr City, Cairo, 11829, Egypt
| | - Ahmed A Farghaly
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois, 60439, United States
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois, 60637, United States
- Chemistry Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| |
Collapse
|
2
|
Chen MT, Huang ZX, Ye X, Zhang L, Feng JJ, Wang AJ. Caffeine derived graphene-wrapped Fe 3C nanoparticles entrapped in hierarchically porous FeNC nanosheets for boosting oxygen reduction reaction. J Colloid Interface Sci 2023; 637:216-224. [PMID: 36701867 DOI: 10.1016/j.jcis.2023.01.077] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/11/2023] [Accepted: 01/15/2023] [Indexed: 01/19/2023]
Abstract
It is a vital requirement to explore high-efficiency and stable electrocatalysts for oxygen reduction reaction (ORR) to further relieve energy depletion. However, it is a critical challenge to develop low cost and high-quality carbon-based catalysts. Herein, a caffeine chelation-triggered pyrolysis approach was developed to construct graphene-wrapped Fe3C nanoparticles incorporated in hierarchically porous FeNC nanosheets (G-Fe3C/FeNC). The present Fe salt and its content as well as the pyrolysis temperature were carefully investigated in the control groups. The G-Fe3C/FeNC catalyst showed a more positive onset potential (Eonset = 1.09 V) and half-wave potential (E1/2 = 0.88 V) in a 0.1 M KOH solution, which outperformed commercial Pt/C (E1/2 = 0.83 V, Eonset = 0.95 V), showing the excellent catalytic performance for the ORR activity, coupled with remarkable stability (only 0.18 mV negative shift in E1/2 after 2000 cycles). This work provides some valuable insights for developing advanced electrocatalysts for energy storage and conversion related research.
Collapse
Affiliation(s)
- Meng-Ting Chen
- Key laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Zheng-Xiong Huang
- Key laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Xin Ye
- Key laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Lu Zhang
- Key laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Jiu-Ju Feng
- Key laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Ai-Jun Wang
- Key laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| |
Collapse
|
3
|
Chen MY, Li Y, Wu HR, Lu BA, Zhang JN. Highly Stable Pt-Based Oxygen Reduction Electrocatalysts toward Practical Fuel Cells: Progress and Perspectives. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2590. [PMID: 37048882 PMCID: PMC10095566 DOI: 10.3390/ma16072590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
The high cost and poor reliability of cathodic electrocatalysts for the oxygen reduction reaction (ORR), which requires significant amounts of expensive and scarce platinum, obstructs the broad applications of proton exchange membrane fuel cells (PEMFCs). The principles of ORR and the reasons for the poor stability of Pt-based catalysts are reviewed. Moreover, this paper discusses and categorizes the strategies for enhancing the stability of Pt-based catalysts in fuel cells. More importantly, it highlights the recent progress of Pt-based stability toward ORR, including surface-doping, intermetallic structures, 1D/2D structures, rational design of support, etc. Finally, for atomic-level in-depth information on ORR catalysts in fuel cells, potential perspectives are suggested, such as large-scale preparation, advanced interpretation techniques, and advanced simulation. This review aims to provide valuable insights into the fundamental science and technical engineering for practical Pt-based ORR electrocatalysts in fuel cells.
Collapse
|
4
|
Calcium-based catalyst for ozone catalytic oxidation for advanced treatment of high salt organic wastewater. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
5
|
Li Q, Zhang G, Yuan B, Zhong S, Ji Y, Liu Y, Wu X, Kong Q, Han J, He W. Core‐shell nanocatalysts with reduced platinum content toward more cost‐effective proton exchange membrane fuel cells. NANO SELECT 2022. [DOI: 10.1002/nano.202200111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Qun Li
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures Harbin Institute of Technology Harbin China
| | - Guisheng Zhang
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures Harbin Institute of Technology Harbin China
| | - Botao Yuan
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures Harbin Institute of Technology Harbin China
| | - Shijie Zhong
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures Harbin Institute of Technology Harbin China
| | - Yuanpeng Ji
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin China
- Chongqing Research Institute Harbin Institute of Technology Chongqing China
| | - Yuanpeng Liu
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures Harbin Institute of Technology Harbin China
| | - Xiaoqiang Wu
- School of Mechanical Engineering Chengdu University Chengdu China
| | - Qingquan Kong
- School of Mechanical Engineering Chengdu University Chengdu China
| | - Jiecai Han
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures Harbin Institute of Technology Harbin China
| | - Weidong He
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures Harbin Institute of Technology Harbin China
- Chongqing Research Institute Harbin Institute of Technology Chongqing China
- School of Mechanical Engineering Chengdu University Chengdu China
| |
Collapse
|
6
|
Ji SG, Kwon HC, Kim TH, Sim U, Choi CH. Does the Encapsulation Strategy of Pt Nanoparticles with Carbon Layers Really Ensure Both Highly Active and Durable Electrocatalysis in Fuel Cells? ACS Catal 2022. [DOI: 10.1021/acscatal.2c01618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sang Gu Ji
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Han Chang Kwon
- The CARBON STUDIO, Inc. R&D Center, Daejeon 34015, Republic of Korea
| | - Tae-Hoon Kim
- Department of Materials Science and Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Uk Sim
- School of Energy Technology, Korea Institute of Energy Technology (KENTECH), Jeollanamdo 58330, Republic of Korea
| | - Chang Hyuck Choi
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| |
Collapse
|
7
|
Song J, Kim Y, Bae HE, Kang SY, Lee J, Karuppannan M, Sung YE, Cho YH, Kwon OJ. Effect of Precursor Status on the Transition from Complex to Carbon Shell in a Platinum Core-Carbon Shell Catalyst. ACS OMEGA 2022; 7:15615-15624. [PMID: 35571819 PMCID: PMC9096943 DOI: 10.1021/acsomega.2c00418] [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: 01/20/2022] [Accepted: 04/13/2022] [Indexed: 06/15/2023]
Abstract
Encapsulating platinum nanoparticles with a carbon shell can increase the stability of core platinum nanoparticles by preventing their dissolution and agglomeration. In this study, the synthesis mechanism of a platinum core-carbon shell catalyst via thermal reduction of a platinum-aniline complex was investigated to determine how the carbon shell forms and identify the key factor determining the properties of the Pt core-carbon shell catalyst. Three catalysts originating from the complexes with different platinum to carbon precursor ratios were synthesized through pyrolysis. Their structural characteristics were examined using various analysis techniques, and their electrochemical activity and stability were evaluated through half-cell and unit-cell tests. The relationship between the nitrogen to platinum ratio and structural characteristics was revealed, and the effects on the electrochemical activity and stability were discussed. The ratio of the carbon precursor to platinum was the decisive factor determining the properties of the platinum core-carbon shell catalyst.
Collapse
Affiliation(s)
- Jihyeok Song
- Department
of Energy and Chemical Engineering, Incheon
National University, 119 Academi-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Youngkwang Kim
- Department
of Energy and Chemical Engineering, Incheon
National University, 119 Academi-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
- School
of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hyo Eun Bae
- Department
of Energy and Chemical Engineering, Incheon
National University, 119 Academi-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
- School
of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sun Young Kang
- School
of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Republic of Korea
- Center
for Nanoparticle Research, Institute for
Basic Science (IBS), Seoul 08826, Republic of Korea
| | - Jongmin Lee
- School
of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Republic of Korea
- Center
for Nanoparticle Research, Institute for
Basic Science (IBS), Seoul 08826, Republic of Korea
| | - Mohanraju Karuppannan
- Department
of Energy and Chemical Engineering, Incheon
National University, 119 Academi-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Yung-Eun Sung
- School
of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Republic of Korea
- Center
for Nanoparticle Research, Institute for
Basic Science (IBS), Seoul 08826, Republic of Korea
| | - Yong-Hun Cho
- Department
of Chemical Engineering, Kangwon Nataional
University, Samcheok 25913, Republic of Korea
| | - Oh Joong Kwon
- Department
of Energy and Chemical Engineering, Incheon
National University, 119 Academi-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| |
Collapse
|
8
|
Liu D, Zhang J, Liu D, Li T, Yan Y, Wei X, Yang Y, Yan S, Zou Z. N-Doped Graphene-Coated Commercial Pt/C Catalysts toward High-Stability and Antipoisoning in Oxygen Reduction Reaction. J Phys Chem Lett 2022; 13:2019-2026. [PMID: 35195426 DOI: 10.1021/acs.jpclett.1c04005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Stability and antipoisoning effects are the main challenges for the application of commercial Pt/C catalysts. Herein, we soaked and adsorbed polydopamine to coat Pt particles on commercial Pt/C and subsequently converted the coatings to few-layer N-doped graphene by calcination to produce Pt/C@NC. The coatings effectively block the direct contact of Pt nanoparticles and electrolyte, thus enhancing the catalyst stability by avoiding Ostwald ripening and suppressing the competitive adsorption of toxicants, contributing to the enhancement of the antipoisoning ability. More importantly, the coatings do not hurt the oxygen reduction reaction (ORR) activity of commercial Pt/C, which exhibits a half wave potential of 0.84 V in an acidic electrolyte. The spectroscopic and theoretical results confirmed that the coatings originate from a strong Pt bonding to pyridinic N of N-doped graphene and that the high ORR activity results from the coordinately unsaturated carbon atoms, as the real ORR active sites, to strongly capture electrons from Pt.
Collapse
Affiliation(s)
- Depei Liu
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
- Jiangsu Key Laboratory for Nano Technology, National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Jie Zhang
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Duanduan Liu
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
- Jiangsu Key Laboratory for Nano Technology, National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Taozhu Li
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Yuandong Yan
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Xinying Wei
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Yandong Yang
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Shicheng Yan
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| | - Zhigang Zou
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
- Jiangsu Key Laboratory for Nano Technology, National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing, Jiangsu 210093, P.R. China
| |
Collapse
|
9
|
Liu Q, Ranocchiari M, van Bokhoven JA. Catalyst overcoating engineering towards high-performance electrocatalysis. Chem Soc Rev 2021; 51:188-236. [PMID: 34870651 DOI: 10.1039/d1cs00270h] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Clean and sustainable energy needs the development of advanced heterogeneous catalysts as they are of vital importance for electrochemical transformation reactions in renewable energy conversion and storage devices. Advances in nanoscience and material chemistry have afforded great opportunities for the design and optimization of nanostructured electrocatalysts with high efficiency and practical durability. In this review article, we specifically emphasize the synthetic methodologies for the versatile surface overcoating engineering reported to date for optimal electrocatalysts. We discuss the recent progress in the development of surface overcoating-derived electrocatalysts potentially applied in polymer electrolyte fuel cells and water electrolyzers by correlating catalyst intrinsic structures with electrocatalytic properties. Finally, we present the opportunities and perspectives of surface overcoating engineering for the design of advanced (electro)catalysts and their deep exploitation in a broad scope of applications.
Collapse
Affiliation(s)
- Qiang Liu
- Institute for Chemical and Bioengineering, ETH Zurich, Vladimir Prelog Weg 1, 8093 Zurich, Switzerland. .,Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - Marco Ranocchiari
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - Jeroen A van Bokhoven
- Institute for Chemical and Bioengineering, ETH Zurich, Vladimir Prelog Weg 1, 8093 Zurich, Switzerland. .,Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| |
Collapse
|
10
|
Nie Y, Li L, Wei Z. Achievements in Pt nanoalloy oxygen reduction reaction catalysts: strain engineering, stability and atom utilization efficiency. Chem Commun (Camb) 2021; 57:12898-12913. [PMID: 34797362 DOI: 10.1039/d1cc05534h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Pt nanoalloy surfaces often show unique electronic and physicochemical properties that are distinct from those of their parent metals, which provide significant room for manipulating their oxygen reduction reaction (ORR) behaviour. In this Feature Article, we present the progress of our recent research and that of other groups in Pt nanoalloy catalysts for ORR from three aspects, namely, strain engineering, stability and atom utilization efficiency. Some new insights into Pt surface strain engineering will be firstly introduced, with a focus on discussing the effect of compressive and tensile strain on the chemisorption properties. Secondly, the design concepts and synthetic methodologies to intensify the inherent stability of Pt nanoalloys will be summarized. Then, the exciting research push in developing nanostructured alloys with high atom utilization efficiency of Pt will be presented. Finally, a brief illumination of challenges and future developing perspectives of Pt nanoalloy catalysts will be provided.
Collapse
Affiliation(s)
- Yao Nie
- Chongqing Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Li Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, College of Chemistry and Chemical Engineering, Chongqing University, Shapingba 174, Chongqing 400044, China.
| | - Zidong Wei
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, College of Chemistry and Chemical Engineering, Chongqing University, Shapingba 174, Chongqing 400044, China.
| |
Collapse
|
11
|
Wang J, Wu G, Xuan W, Peng L, Feng Y, Ding W, Li L, Liao Q, Wei Z. A framework ensemble facilitates high Pt utilization in a low Pt loading fuel cell. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00028d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Rationally designing the structure of catalyst layer in MEA to achieve the dispersion of active sites at the cross of three-phase field and the effective transfer network paths for protons through catalysts and catalyst layer.
Collapse
Affiliation(s)
- Jian Wang
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Guangping Wu
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Wenhui Xuan
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Lishan Peng
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Yong Feng
- State Key Laboratory of Advanced Chemical Power Sources
- Guizhou Meiling Power Sources Co. Ltd
- Zunyi
- China
| | - Wei Ding
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Li Li
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Qiang Liao
- Institute of Engineering Thermophysics
- Chongqing University
- Chongqing
- China
| | - Zidong Wei
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| |
Collapse
|
12
|
Lee D, Gok S, Kim Y, Sung YE, Lee E, Jang JH, Hwang JY, Kwon OJ, Lim T. Methanol Tolerant Pt-C Core-Shell Cathode Catalyst for Direct Methanol Fuel Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:44588-44596. [PMID: 32924426 DOI: 10.1021/acsami.0c07812] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Methanol crossover is one of the largest problems in direct methanol fuel cells (DMFCs). Methanol passing from the anode to the cathode through the membrane is oxidized at the cathode, degrading the DMFC performance, and the intermediates of the methanol oxidation reaction (MOR) cause cathode catalyst poisoning. Therefore, it is essential to develop a cathode catalyst capable of inhibiting MOR while promoting the oxygen reduction reaction (ORR), which is a typical cathode reaction in DMFCs. In this study, a carbon-encapsulated Pt cathode catalyst was synthesized for this purpose. The catalyst was simply synthesized by heat treatment of Pt-aniline complex-coated carbon nanofibers. The carbon shell of the catalyst was effective in inhibiting methanol from accessing the Pt core, and this effect became more prominent as the graphitization degree of the carbon shell increased. Meanwhile, the carbon shell allowed O2 to permeate regardless of the graphitization degree, enabling the Pt core to participate in ORR. The synthesized catalyst showed higher performance and stability in single-cell tests under various conditions compared to commercial Pt/C.
Collapse
Affiliation(s)
- Dohyeon Lee
- Department of Energy and Chemical Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Sujin Gok
- Department of Energy and Chemical Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Youngkwang Kim
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Seoul 08826, Republic of Korea
| | - Yung-Eun Sung
- School of Chemical and Biological Engineering, Seoul National University, 1 Gwanak-ro, Seoul 08826, Republic of Korea
| | - Eunjik Lee
- Research & Development Division, Hyundai Motor Group, 37 Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do 16082, Republic of Korea
| | - Ji-Hoon Jang
- Research & Development Division, Hyundai Motor Group, 37 Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do 16082, Republic of Korea
| | - Jee Youn Hwang
- Research & Development Division, Hyundai Motor Group, 37 Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do 16082, Republic of Korea
| | - Oh Joong Kwon
- Department of Energy and Chemical Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea
| | - Taeho Lim
- Department of Chemical Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
| |
Collapse
|
13
|
Chen K, Liu K, An P, Li H, Lin Y, Hu J, Jia C, Fu J, Li H, Liu H, Lin Z, Li W, Li J, Lu YR, Chan TS, Zhang N, Liu M. Iron phthalocyanine with coordination induced electronic localization to boost oxygen reduction reaction. Nat Commun 2020; 11:4173. [PMID: 32820168 PMCID: PMC7441147 DOI: 10.1038/s41467-020-18062-y] [Citation(s) in RCA: 163] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 07/29/2020] [Indexed: 01/20/2023] Open
Abstract
Iron phthalocyanine (FePc) is a promising non-precious catalyst for the oxygen reduction reaction (ORR). Unfortunately, FePc with plane-symmetric FeN4 site usually exhibits an unsatisfactory ORR activity due to its poor O2 adsorption and activation. Here, we report an axial Fe-O coordination induced electronic localization strategy to improve its O2 adsorption, activation and thus the ORR performance. Theoretical calculations indicate that the Fe-O coordination evokes the electronic localization among the axial direction of O-FeN4 sites to enhance O2 adsorption and activation. To realize this speculation, FePc is coordinated with an oxidized carbon. Synchrotron X-ray absorption and Mössbauer spectra validate Fe-O coordination between FePc and carbon. The obtained catalyst exhibits fast kinetics for O2 adsorption and activation with an ultralow Tafel slope of 27.5 mV dec-1 and a remarkable half-wave potential of 0.90 V. This work offers a new strategy to regulate catalytic sites for better performance.
Collapse
Affiliation(s)
- Kejun Chen
- State Key Laboratory of Powder Metallurgy, School of Physical and Electronics, Central South University, Changsha, 410083, China
| | - Kang Liu
- State Key Laboratory of Powder Metallurgy, School of Physical and Electronics, Central South University, Changsha, 410083, China
| | - Pengda An
- State Key Laboratory of Powder Metallurgy, School of Physical and Electronics, Central South University, Changsha, 410083, China.,School of Materials Science and Engineering, Central South University, Changsha, 410083, China
| | - Huangjingwei Li
- State Key Laboratory of Powder Metallurgy, School of Physical and Electronics, Central South University, Changsha, 410083, China
| | - Yiyang Lin
- State Key Laboratory of Powder Metallurgy, School of Physical and Electronics, Central South University, Changsha, 410083, China
| | - Junhua Hu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, China
| | - Chuankun Jia
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Junwei Fu
- State Key Laboratory of Powder Metallurgy, School of Physical and Electronics, Central South University, Changsha, 410083, China
| | - Hongmei Li
- State Key Laboratory of Powder Metallurgy, School of Physical and Electronics, Central South University, Changsha, 410083, China
| | - Hui Liu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Zhang Lin
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Wenzhang Li
- School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Jiahang Li
- Changjun High School of Changsha, Changsha, 410002, China
| | - Ying-Rui Lu
- National Synchrotron Radiation Research Center, 300, Hsinchu, Taiwan
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center, 300, Hsinchu, Taiwan
| | - Ning Zhang
- School of Materials Science and Engineering, Central South University, Changsha, 410083, China
| | - Min Liu
- State Key Laboratory of Powder Metallurgy, School of Physical and Electronics, Central South University, Changsha, 410083, China.
| |
Collapse
|
14
|
Robust MOF-253-derived N-doped carbon confinement of Pt single nanocrystal electrocatalysts for oxygen evolution reaction. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63488-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
Li W, Wang D, Zhang Y, Tao L, Wang T, Zou Y, Wang Y, Chen R, Wang S. Defect Engineering for Fuel-Cell Electrocatalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907879. [PMID: 32176409 DOI: 10.1002/adma.201907879] [Citation(s) in RCA: 165] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 02/11/2020] [Accepted: 02/13/2020] [Indexed: 06/10/2023]
Abstract
The commercialization of fuel cells, such as proton exchange membrane fuel cells and direct methanol/formic acid fuel cells, is hampered by their poor stability, high cost, fuel crossover, and the sluggish kinetics of platinum (Pt) and Pt-based electrocatalysts for both the cathodic oxygen reduction reaction (ORR) and the anodic hydrogen oxidation reaction (HOR) or small molecule oxidation reaction (SMOR). Thus far, the exploitation of active and stable electrocatalysts has been the most promising strategy to improve the performance of fuel cells. Accordingly, increasing attention is being devoted to modulating the surface/interface electronic structure of electrocatalysts and optimizing the adsorption energy of intermediate species by defect engineering to enhance their catalytic performance. Defect engineering is introduced in terms of defect definition, classification, characterization, construction, and understanding. Subsequently, the latest advances in defective electrocatalysts for ORR and HOR/SMOR in fuel cells are scientifically and systematically summarized. Furthermore, the structure-activity relationships between defect engineering and electrocatalytic ability are further illustrated by coupling experimental results and theoretical calculations. With a deeper understanding of these complex relationships, the integration of defective electrocatalysts into single fuel-cell systems is also discussed. Finally, the potential challenges and prospects of defective electrocatalysts are further proposed, covering controllable preparation, in situ characterization, and commercial applications.
Collapse
Affiliation(s)
- Wei Li
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, The National Supercomputing Center in Changsha, Hunan University, Changsha, 410082, P. R. China
| | - Dongdong Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, The National Supercomputing Center in Changsha, Hunan University, Changsha, 410082, P. R. China
| | - Yiqiong Zhang
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, 410082, P. R. China
| | - Li Tao
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, The National Supercomputing Center in Changsha, Hunan University, Changsha, 410082, P. R. China
| | - Tehua Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, The National Supercomputing Center in Changsha, Hunan University, Changsha, 410082, P. R. China
| | - Yuqin Zou
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, The National Supercomputing Center in Changsha, Hunan University, Changsha, 410082, P. R. China
| | - Yanyong Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, The National Supercomputing Center in Changsha, Hunan University, Changsha, 410082, P. R. China
| | - Ru Chen
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, The National Supercomputing Center in Changsha, Hunan University, Changsha, 410082, P. R. China
| | - Shuangyin Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, The National Supercomputing Center in Changsha, Hunan University, Changsha, 410082, P. R. China
- Shenzhen Research Institute of Hunan University, Shenzhen, 518057, P. R. China
| |
Collapse
|
16
|
Hwang J, Kim Y, Karuppnan M, Lim T, Kwon OJ. Facile Synthesis of a Carbon-Encapsulated Pd Catalyst for Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cells. Electrocatalysis (N Y) 2019. [DOI: 10.1007/s12678-019-00567-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
17
|
Liu J, Li W, Cheng R, Wu Q, Zhao J, He D, Mu S. Stabilizing Pt Nanocrystals Encapsulated in N-Doped Carbon as Double-Active Sites for Catalyzing Oxygen Reduction Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:2580-2586. [PMID: 30682889 DOI: 10.1021/acs.langmuir.8b03947] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Polypropylene fiber, a cheap source of nitrogen-doped carbon, is introduced to design robust nitrogen-doped carbon-encapsulated small Pt nanocrystals with Pt and nitrogen-carbon double-active centers toward oxygen reduction reaction (ORR). Ascribed to the separation effect of the polypropylene fiber, even suffering from a high-temperature carbonization treatment at 720 °C for 90 min, the polypropylene fiber-derived carbon-encapsulated Pt nanocrystal maintains a small particle size (3 nm diameter on average). As expected, its ORR mass activity is up to 116.5 mA/mg at 0.9 V. After 8000 cycles, the half-wave potential of the prepared catalyst declines only by 14 mV compared with 43 mV for the commercial Pt/C catalyst. The significantly improved electrochemical properties of the as-prepared catalyst are resulted from the nitrogen-doped carbon-encapsulated Pt nanocrystal structure, which is benefited to adsorption and activation of oxygen due to the presence of nitrogen-doped carbon as the important active site for ORR besides Pt metal. In addition, the migration, aggregation, and growth of Pt nanoparticles are prohibited in terms of the outer nitrogen-doped carbon protection layer, greatly enhancing the stability of the catalyst.
Collapse
|
18
|
Sun K, Li J, Wang F, He W, Fei M, Lu Z, Zhang H, Liu J, Zou Z. Highly enhanced durability of a graphitic carbon layer decorated PtNi 3 alloy electrocatalyst toward the oxygen reduction reaction. Chem Commun (Camb) 2019; 55:5693-5696. [PMID: 31025688 DOI: 10.1039/c9cc02510c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The durability issue of a carbon supported PtNi3 alloy catalyst (PtNi3/C) under acidic conditions has been solved by introducing an N-doped graphitic carbon (NGC) layer to coat the surface of the PtNi3/C catalyst. The as-prepared PtNi3/C@NGC catalyst exhibits superior durability, being able to undergo 10 000 voltage cycles with negligible activity decay.
Collapse
Affiliation(s)
- Kui Sun
- Jiangsu Key Laboratory for Nano Technology, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 22 Hankou Road, Nanjing 210093, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
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).
Collapse
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
| |
Collapse
|
20
|
Chung DY, Yoo JM, Sung YE. Highly Durable and Active Pt-Based Nanoscale Design for Fuel-Cell Oxygen-Reduction Electrocatalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704123. [PMID: 29359829 DOI: 10.1002/adma.201704123] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 10/04/2017] [Indexed: 05/16/2023]
Abstract
Fuel cells are one of the promising energy-conversion devices due to their high efficiency and zero emission. Although recent advances in electrocatalysts have been achieved using various material designs such as alloys, core@shell structures, and shape control, many issues still remain to be resolved. Especially, material design issues for high durability and high activity are recently accentuated owing to severe instability of nanoparticles under fuel-cell operating conditions. To address these issues, fundamental understanding of functional links between activity and durability is timely urgent. Here, the activity and durability of nanoscale materials are summarized, focusing on the nanoparticle size effect. In addition to phenomenological observation, two major degradation origins, including atomic dissolution and particle size increase, are discussed related to the activity decrease. Based on the fundamental understanding of nanoparticle degradation, recent promising strategies for durable Pt-based nanoscale electrocatalysts are introduced and the role of each design for durability enhancement is discussed. Finally, short comments related to the future direction of nanoparticle issues are provided in terms of nanoparticle synthesis and analysis.
Collapse
Affiliation(s)
- Dong Young Chung
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, South Korea
- School of Chemical and Biological Engineering, Seoul National University (SNU), Seoul, 08826, South Korea
| | - Ji Mun Yoo
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, South Korea
- School of Chemical and Biological Engineering, Seoul National University (SNU), Seoul, 08826, South Korea
| | - Yung-Eun Sung
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, South Korea
- School of Chemical and Biological Engineering, Seoul National University (SNU), Seoul, 08826, South Korea
| |
Collapse
|
21
|
Duma AD, Wu YC, Su WN, Pan CJ, Tsai MC, Chen HM, Lee JF, Sheu HS, Ho VTT, Hwang BJ. In Situ Confined Synthesis of Ti4
O7
Supported Platinum Electrocatalysts with Enhanced Activity and Stability for the Oxygen Reduction Reaction. ChemCatChem 2018. [DOI: 10.1002/cctc.201701503] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Alemayehu Dubale Duma
- Nanoelectrochemistry Laboratory, Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 106 Taiwan
| | - Yi-Chen Wu
- Nanoelectrochemistry Laboratory, Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 106 Taiwan
| | - Wei-Nien Su
- Nanoelectrochemistry Laboratory, Graduate Institute of Applied Science and Technology; National Taiwan University of Science and Technology; Taipei 106 Taiwan
| | - Chun-Jern Pan
- Nanoelectrochemistry Laboratory, Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 106 Taiwan
| | - Meng-Che Tsai
- Nanoelectrochemistry Laboratory, Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 106 Taiwan
| | - Hung-Ming Chen
- Nanoelectrochemistry Laboratory, Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 106 Taiwan
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center; Hsinchu 30076 Taiwan
| | - Hwo-Shuenn Sheu
- National Synchrotron Radiation Research Center; Hsinchu 30076 Taiwan
| | - Van Thi Thanh Ho
- Nanoelectrochemistry Laboratory, Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 106 Taiwan
| | - Bing-Joe Hwang
- Nanoelectrochemistry Laboratory, Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 106 Taiwan
- National Synchrotron Radiation Research Center; Hsinchu 30076 Taiwan
| |
Collapse
|
22
|
Wang Y, Li J, Wei Z. Recent Progress of Carbon-Based Materials in Oxygen Reduction Reaction Catalysis. ChemElectroChem 2018. [DOI: 10.1002/celc.201701335] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yao Wang
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology; College of Chemistry and Chemical Engineering; Chongqing University; Shapingba 174 Chongqing China
| | - Jing Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology; College of Chemistry and Chemical Engineering; Chongqing University; Shapingba 174 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; Shapingba 174 Chongqing China
| |
Collapse
|
23
|
Mi S, Cheng N, Jiang H, Li C, Jiang H. Porous Pt3Ni with enhanced activity and durability towards oxygen reduction reaction. RSC Adv 2018; 8:15344-15351. [PMID: 35539461 PMCID: PMC9080043 DOI: 10.1039/c8ra02219d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 04/03/2018] [Indexed: 11/21/2022] Open
Abstract
The size of nanocrystals (NCs) is regarded as one of the vital factors determining their electrochemical performance. To achieve high electrochemical activity and durability at the same time still remains a big challenge. This work has demonstrated the successful synthesis of Pt3Ni nanocrystals of large size with porous characteristics (PNC-Pt3Ni). The mass and specific activity of the as-prepared catalyst are 6 and 6.6 times more than those of commercial Pt/C at 0.9 volts versus the reversible hydrogen electrode (RHE), respectively. More importantly, PNC-Pt3Ni prevails against a durability test (23.7% loss of mass activity after 10 000 potential cycling) with little change to the porous morphology under harsh experimental conditions. Density functional theory calculations show a much lower activation energy for PNC-Pt3Ni during the process of dissociation of the oxygen molecule adsorbed on the surface of the catalyst, which may account for the improvement in the catalytic activity. The lower series resistance for PNC-Pt3Ni is also verified by electrochemical impedance spectroscopy (EIS) data, resulting from fewer grain boundaries for nanocrystals with large sizes. This exciting work contributes a new strategy for the optimization of electrochemical performance and durability. Porous Pt3Ni nanocrystals of large size possess enhanced electrochemical activity and durability towards oxygen reduction reaction is preferred.![]()
Collapse
Affiliation(s)
- Shuying Mi
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Na Cheng
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Hao Jiang
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Chunzhong Li
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Haibo Jiang
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| |
Collapse
|
24
|
Luo L, Zhu F, Tian R, Li L, Shen S, Yan X, Zhang J. Composition-Graded PdxNi1–x Nanospheres with Pt Monolayer Shells as High-Performance Electrocatalysts for Oxygen Reduction Reaction. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01775] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Liuxuan Luo
- Institute of Fuel Cells, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Fengjuan Zhu
- Institute of Fuel Cells, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Renxiu Tian
- Institute of Fuel Cells, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Lin Li
- Institute of Fuel Cells, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Shuiyun Shen
- Institute of Fuel Cells, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Xiaohui Yan
- Institute of Fuel Cells, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Junliang Zhang
- Institute of Fuel Cells, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| |
Collapse
|
25
|
Liu Y, Chen N, Wang F, Cai Y, Zhu H. Pt–Co deposited on polyaniline-modified carbon for the electro-reduction of oxygen: the interaction between Pt–Co nanoparticles and polyaniline. NEW J CHEM 2017. [DOI: 10.1039/c7nj00145b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PANI partially decomposed at 500 °C and metal–nitrogen bonds appeared in Pt–Co/C-PANI-500 °C, improving the ORR activity.
Collapse
Affiliation(s)
- Yang Liu
- State Key Laboratory of Chemical Resource Engineering
- Institute of Modern Catalysis
- Department of Organic Chemistry
- School of Science
- Beijing University of Chemical Technology
| | - Nanjun Chen
- State Key Laboratory of Chemical Resource Engineering
- Institute of Modern Catalysis
- Department of Organic Chemistry
- School of Science
- Beijing University of Chemical Technology
| | - Fanghui Wang
- State Key Laboratory of Chemical Resource Engineering
- Institute of Modern Catalysis
- Department of Organic Chemistry
- School of Science
- Beijing University of Chemical Technology
| | - Yezheng Cai
- State Key Laboratory of Chemical Resource Engineering
- Institute of Modern Catalysis
- Department of Organic Chemistry
- School of Science
- Beijing University of Chemical Technology
| | - Hong Zhu
- State Key Laboratory of Chemical Resource Engineering
- Institute of Modern Catalysis
- Department of Organic Chemistry
- School of Science
- Beijing University of Chemical Technology
| |
Collapse
|
26
|
Wang Q, Chen S, Shi F, Chen K, Nie Y, Wang Y, Wu R, Li J, Zhang Y, Ding W, Li Y, Li L, Wei Z. Structural Evolution of Solid Pt Nanoparticles to a Hollow PtFe Alloy with a Pt-Skin Surface via Space-Confined Pyrolysis and the Nanoscale Kirkendall Effect. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:10673-10678. [PMID: 27735091 DOI: 10.1002/adma.201603509] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 08/10/2016] [Indexed: 06/06/2023]
Abstract
A space-confined interfacial conversion approach is developed to directly transform 3 nm solid Pt nanoparticles into a 5 nm hollow PtFe alloy featuring a Pt-skin surface. The approach presented for the structural evolution from solid Pt NPs to hollow PtFe alloy with controlled size, structure, and composition can be applied to other multimetallic electrocatalysts.
Collapse
Affiliation(s)
- Qingmei Wang
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Siguo Chen
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Feng Shi
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Ke Chen
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Yao Nie
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Yao Wang
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Rui Wu
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Jia Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Yun Zhang
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Wei Ding
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Yang Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Li Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| | - Zidong Wei
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
| |
Collapse
|
27
|
Del Carmen Gimenez-Lopez M, Kurtoglu A, Walsh DA, Khlobystov AN. Extremely Stable Platinum-Amorphous Carbon Electrocatalyst within Hollow Graphitized Carbon Nanofibers for the Oxygen Reduction Reaction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:9103-9108. [PMID: 27571503 DOI: 10.1002/adma.201602485] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 07/28/2016] [Indexed: 06/06/2023]
Abstract
Unprecedented electrochemical stabilization of platinum nanoparticles (PtNPs) is presented, upon insertion into shortened hollow graphitized carbon nanofibers (PtNP@S-GNF) toward the oxygen-reduction reaction for fuel-cell applications. In contrast to that observed for a commercial Pt/C electrocatalyst, the specific activity and the electrochemical surface area for PtNP@S-GNF remain practically unchanged during durability tests after 50 000 potential cycles, allowing the sustainable use of Pt.
Collapse
Affiliation(s)
| | - Abdullah Kurtoglu
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Darren A Walsh
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Andrei N Khlobystov
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
- Nanoscale & Microscale Research Centre, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
| |
Collapse
|
28
|
Li W, Ding W, Nie Y, Qi X, Wu G, Li L, Liao J, Chen S, Wei Z. Enhancing the stability and activity by anchoring Pt nanoparticles between the layers of etched montmorillonite for oxygen reduction reaction. Sci Bull (Beijing) 2016. [DOI: 10.1007/s11434-016-1161-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
29
|
Xu GR, Wang B, Zhu JY, Liu FY, Chen Y, Zeng JH, Jiang JX, Liu ZH, Tang YW, Lee JM. Morphological and Interfacial Control of Platinum Nanostructures for Electrocatalytic Oxygen Reduction. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01440] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Guang-Rui Xu
- Key
Laboratory of Macromolecular Science of Shaanxi Province, School of
Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Bin Wang
- School
of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Jing-Yi Zhu
- Key
Laboratory of Macromolecular Science of Shaanxi Province, School of
Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Feng-Yi Liu
- School
of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Yu Chen
- Key
Laboratory of Macromolecular Science of Shaanxi Province, School of
Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Jing-Hui Zeng
- Key
Laboratory of Macromolecular Science of Shaanxi Province, School of
Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Jia-Xing Jiang
- Key
Laboratory of Macromolecular Science of Shaanxi Province, School of
Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Zong-Huai Liu
- Key
Laboratory of Macromolecular Science of Shaanxi Province, School of
Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Ya-Wen Tang
- School
of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Jong-Min Lee
- School of
Chemical and Biomedical Engineering, Nanyang Technological University, 637459 Singapore
| |
Collapse
|
30
|
Enhanced Activity of Supported Ni Catalysts Promoted by Pt for Rapid Reduction of Aromatic Nitro Compounds. NANOMATERIALS 2016; 6:nano6060103. [PMID: 28335231 PMCID: PMC5302623 DOI: 10.3390/nano6060103] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/11/2016] [Accepted: 05/13/2016] [Indexed: 11/17/2022]
Abstract
To improve the activities of non-noble metal catalysts is highly desirable and valuable to the reduced use of noble metal resources. In this work, the supported nickel (Ni) and nickel-platinum (NiPt) nanocatalysts were derived from a layered double hydroxide/carbon composite precursor. The catalysts were characterized and the role of Pt was analysed using X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectroscopy (EDS) mapping, and X-ray photoelectron spectroscopy (XPS) techniques. The Ni2+ was reduced to metallic Ni0 via a self-reduction way utilizing the carbon as a reducing agent. The average sizes of the Ni particles in the NiPt catalysts were smaller than that in the supported Ni catalyst. The electronic structure of Ni was affected by the incorporation of Pt. The optimal NiPt catalysts exhibited remarkably improved activity toward the reduction of nitrophenol, which has an apparent rate constant (Ka) of 18.82 × 10−3 s−1, 6.2 times larger than that of Ni catalyst and also larger than most of the reported values of noble-metal and bimetallic catalysts. The enhanced activity could be ascribed to the modification to the electronic structure of Ni by Pt and the effect of exposed crystal planes.
Collapse
|
31
|
Gao X, Ji Y, He S, Li S, Lee JM. Self-assembly synthesis of reduced graphene oxide-supported platinum nanowire composites with enhanced electrocatalytic activity towards the hydrazine oxidation reaction. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01764e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pt-NWs-P can self-assemble on the GO@NH2 surface. After NaBH4 reduction, Pt-NWs/RGO show improved electrocatalytic activity for the hydrazine oxidation reaction.
Collapse
Affiliation(s)
- Xueqing Gao
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- PR China
| | - Yigang Ji
- Department of Life Sciences and Chemistry
- Jiangsu Second Normal University
- Nanjing 210013
- PR China
| | - Shan He
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- PR China
| | - Shuni Li
- Key Laboratory of Macromolecular Science of Shaanxi Province
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi'an 710062
- PR China
| | - Jong-Min Lee
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
| |
Collapse
|
32
|
Cobalt modified two-dimensional polypyrrole synthesized in a flat nanoreactor for the catalysis of oxygen reduction. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2015.07.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
33
|
Nie Y, Li L, Wei Z. Recent advancements in Pt and Pt-free catalysts for oxygen reduction reaction. Chem Soc Rev 2015; 44:2168-201. [DOI: 10.1039/c4cs00484a] [Citation(s) in RCA: 1606] [Impact Index Per Article: 178.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Based on the understanding of the ORR catalytic mechanism, advanced Pt-based and Pt-free catalysts have been explored.
Collapse
Affiliation(s)
- Yao Nie
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Li Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| | - Zidong Wei
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- China
| |
Collapse
|
34
|
Long Y, Yuan B, Niu J, Tong X, Ma J. Distinctive size effects of Pt nanoparticles immobilized on Fe3O4@PPy used as an efficient recyclable catalyst for benzylic alcohol aerobic oxidation and hydrogenation reduction of nitroaromatics. NEW J CHEM 2015. [DOI: 10.1039/c4nj01869a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Size effects of supported Pt nanoparticles were entirely different for benzylic alcohol aerobic oxidation and hydrogenation reduction of nitroaromatics.
Collapse
Affiliation(s)
- Yu Long
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Bing Yuan
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Jianrui Niu
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Xin Tong
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Jiantai Ma
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| |
Collapse
|
35
|
Huang JF, Chen WY. A facile Pt catalyst regeneration process significantly improves the catalytic activity of Pt–organic composites for the O2 reduction reaction. Chem Commun (Camb) 2015; 51:12052-5. [DOI: 10.1039/c5cc03530a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combination of the “nano-size” effect and Cl− complexation ability causes massive electrodissolution of Pt under acidic conditions to promote the regeneration of Pt–organic composites and to significantly improve the catalytic performance of the O2 reduction reaction.
Collapse
Affiliation(s)
- Jing-Fang Huang
- Department of Chemistry
- National Chung Hsing University
- Taichung
- Republic of China
| | - Wen-Yu Chen
- Department of Chemistry
- National Chung Hsing University
- Taichung
- Republic of China
| |
Collapse
|
36
|
Wang Y, Nie Y, Ding W, Chen SG, Xiong K, Qi XQ, Zhang Y, Wang J, Wei ZD. Unification of catalytic oxygen reduction and hydrogen evolution reactions: highly dispersive Co nanoparticles encapsulated inside Co and nitrogen co-doped carbon. Chem Commun (Camb) 2015; 51:8942-5. [DOI: 10.1039/c5cc02400e] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The elaborately synthesized Co nanoparticles encapsulated inside Co and nitrogen co-doped carbon catalysts with homogenous distribution of Co NPs exhibit evidently outstanding performances toward ORR/HER.
Collapse
Affiliation(s)
- Y. Wang
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing, 400044
- China
| | - Y. Nie
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing, 400044
- China
| | - W. Ding
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing, 400044
- China
| | - S. G. Chen
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing, 400044
- China
| | - K. Xiong
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing, 400044
- China
| | - X. Q. Qi
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing, 400044
- China
| | - Y. Zhang
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing, 400044
- China
| | - J. Wang
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing, 400044
- China
| | - Z. D. Wei
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- College of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing, 400044
- China
| |
Collapse
|