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Nanoengineering electrode for yttria-stabilized zirconia-based symmetrical solid oxide fuel cells to achieve superior output performance. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Recent Progress in Design and Fabrication of SOFC Cathodes for Efficient Catalytic Oxygen Reduction. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Yu W, Zhang D, Zhang X, Liu T, Wang Y. Advanced Ru‐Infiltrated Perovskite Oxide Electrodes for Boosting the Performance of Syngas Fueled Solid Oxide Fuel Cell. ChemElectroChem 2022. [DOI: 10.1002/celc.202200024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wenqing Yu
- Key Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education School of Power and Mechanical Engineering Wuhan University Wuhan Hubei 430072 PR China
| | - Dong Zhang
- Key Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education School of Power and Mechanical Engineering Wuhan University Wuhan Hubei 430072 PR China
| | - Xiaoyu Zhang
- Key Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education School of Power and Mechanical Engineering Wuhan University Wuhan Hubei 430072 PR China
| | - Tong Liu
- Key Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education School of Power and Mechanical Engineering Wuhan University Wuhan Hubei 430072 PR China
- School of Chemical Engineering ane Pharmarcy Wuhan Institute of Technology Wuhan Hubei 430205 China
| | - Yao Wang
- Key Laboratory of Hydraulic Machinery Transients (Wuhan University) Ministry of Education School of Power and Mechanical Engineering Wuhan University Wuhan Hubei 430072 PR China
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Kim H, Lim C, Kwon O, Oh J, Curnan MT, Jeong HY, Choi S, Han JW, Kim G. Unveiling the key factor for the phase reconstruction and exsolved metallic particle distribution in perovskites. Nat Commun 2021; 12:6814. [PMID: 34819509 PMCID: PMC8613209 DOI: 10.1038/s41467-021-26739-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 10/01/2021] [Indexed: 11/09/2022] Open
Abstract
To significantly increase the amount of exsolved particles, the complete phase reconstruction from simple perovskite to Ruddlesden-Popper (R-P) perovskite is greatly desirable. However, a comprehensive understanding of key parameters affecting the phase reconstruction to R-P perovskite is still unexplored. Herein, we propose the Gibbs free energy for oxygen vacancy formation in Pr0.5(Ba/Sr)0.5TO3-δ (T = Mn, Fe, Co, and Ni) as the important factor in determining the type of phase reconstruction. Furthermore, using in-situ temperature & environment-controlled X-ray diffraction measurements, we report the phase diagram and optimum 'x' range required for the complete phase reconstruction to R-P perovskite in Pr0.5Ba0.5-xSrxFeO3-δ system. Among the Pr0.5Ba0.5-xSrxFeO3-δ, (Pr0.5Ba0.2Sr0.3)2FeO4+δ - Fe metal demonstrates the smallest size of exsolved Fe metal particles when the phase reconstruction occurs under reducing condition. The exsolved nano-Fe metal particles exhibit high particle density and are well-distributed on the perovskite surface, showing great catalytic activity in fuel cell and syngas production.
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Affiliation(s)
- Hyunmin Kim
- grid.42687.3f0000 0004 0381 814XSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 Republic of Korea
| | - Chaesung Lim
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
| | - Ohhun Kwon
- grid.25879.310000 0004 1936 8972Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Jinkyung Oh
- grid.42687.3f0000 0004 0381 814XSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 Republic of Korea
| | - Matthew T. Curnan
- grid.49100.3c0000 0001 0742 4007Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
| | - Hu Young Jeong
- grid.42687.3f0000 0004 0381 814XDepartment of Materials Science and Engineering and UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 Republic of Korea
| | - Sihyuk Choi
- Department of Mechanical Engineering (Aeronautics, Mechanical and Electronic Convergence Engineering), Kumoh National Institute of Technology, Gyeongbuk, 39177, Republic of Korea.
| | - Jeong Woo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
| | - Guntae Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea.
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High-Efficiency of Bi-Functional-Based Perovskite Nanocomposite for Oxygen Evolution and Oxygen Reduction Reaction: An Overview. MATERIALS 2021; 14:ma14112976. [PMID: 34072851 PMCID: PMC8198805 DOI: 10.3390/ma14112976] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 01/12/2023]
Abstract
High efficient, low-cost and environmentally friendly-natured bi-functional-based perovskite electrode catalysts (BFPEC) are receiving increasing attention for oxygen reduction/oxygen evolution reaction (ORR/OER), playing an important role in the electrochemical energy conversion process using fuel cells and rechargeable batteries. Herein, we highlighted the different kinds of synthesis routes, morphological studies and electrode catalysts with A-site and B-site substitution co-substitution, generating oxygen vacancies studies for boosting ORR and OER activities. However, perovskite is a novel type of oxide family, which shows the state-of-art electrocatalytic performances in energy storage device applications. In this review article, we go through different types of BFPECs that have received massive appreciation and various strategies to promote their electrocatalytic activities (ORR/OER). Based on these various properties and their applications of BFPEC for ORR/OER, the general mechanism, catalytic performance and future outlook of these electrode catalysts have also been discussed.
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