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Cu-doped CaFeO3 per...
Cu-doped CaFeO3 perovskite oxide as oxygen reduction catalyst in air cathode microbial fuel cells
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- Zhang, Hongguo (författare)
- Guangzhou Univ, Guangzhou Univ Linkoping Univ Res Ctr Urban Susta, Guangzhou, Peoples R China; Guangzhou Univ, Peoples R China
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- Shi, Huihui (författare)
- Guangzhou Univ, Peoples R China; Hefei Hengli Equipment Ltd, Peoples R China
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- You, Henghui (författare)
- Guangzhou Univ, Peoples R China
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- Su, Minhua (författare)
- Guangzhou Univ, Peoples R China
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- Huang, Lei (författare)
- Guangzhou Univ, Peoples R China
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- Zhou, Zikang (författare)
- Guangzhou Univ, Peoples R China
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- Zhang, Citao (författare)
- Guangzhou Univ, Peoples R China
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- Zuo, Jianliang (författare)
- Guangzhou Univ, Peoples R China
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- Yan, Jia (författare)
- Guangzhou Univ, Peoples R China
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- Xiao, Tangfu (författare)
- Guangzhou Univ, Peoples R China
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- Liu, Xianjie (författare)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Xu, Tao (författare)
- Guangzhou Univ, Peoples R China
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(creator_code:org_t)
- ACADEMIC PRESS INC ELSEVIER SCIENCE, 2022
- 2022
- Engelska.
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Ingår i: Environmental Research. - : ACADEMIC PRESS INC ELSEVIER SCIENCE. - 0013-9351 .- 1096-0953. ; 214
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Cathode electrocatalyst is quite critical to realize the application of microbial fuel cells (MFCs). Perovskite oxides have been considered as potential MFCs cathode catalysts to replace Pt/C. Herein, Cu-doped perovskite oxide with a stable porous structure and excellent conductivity was successfully prepared through a sol-gel method. Due to the incorporation of Cu, CaFe0.9Cu0.1O3 has more micropores and a larger surface area, which are more conducive to contact with oxygen. Doping Cu resulted in more Fe3+ in B-site and thus enhanced its binding capability to oxygen molecules. The data from electrochemical test demonstrated that the as-prepared catalyst has good conductivity, high stability, and excellent ORR properties. Compared with Pt/C catalyst, CaFe0.9Cu0.1O3 exhibits a lower overpotential, which had an onset potential of 0.195 V and a half-wave potential of 0.224 V, respectively. CaFe0.9Cu0.1O3 displays an outstanding four-electron pathway for ORR mechanism and demonstrates superiors corrosion resistance and stability. The MFC with CaFe0.9Cu0.1O3 has a greater maximum power density (1090 mW m(-3)) rather than that of Pt/C cathode (970 mW m(-3)). This work demonstrated CaFe0.9Cu0.1O3 is an economic and efficient cathodic catalyst for MFCs.
Ämnesord
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- Perovskite; Porous structure; Oxygen reduction reaction; Microbial fuel cells
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- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Zhang, Hongguo
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Shi, Huihui
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You, Henghui
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Su, Minhua
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Huang, Lei
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Zhou, Zikang
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Zhang, Citao
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Zuo, Jianliang
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Yan, Jia
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Xiao, Tangfu
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Liu, Xianjie
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Xu, Tao
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Annan kemi
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Environmental Re ...
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Linköpings universitet