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A co-doped oxygen r...
A co-doped oxygen reduction catalyst with FeCu promotes the stability of microbial fuel cells
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- Li, Han (författare)
- Guangzhou Univ, Peoples R China; South China Univ Technol, Peoples R China
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- Shi, HuiHui (författare)
- Guangzhou Univ, Peoples R China
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- Dai, Yi (författare)
- Guangzhou Univ, Peoples R China
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- You, HengHui (författare)
- Guangzhou Univ, Peoples R China
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- Arulmani, Samuel Raj Babu (författare)
- Guangzhou Univ, Peoples R China
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- Zhang, Hongguo (författare)
- Guangzhou Univ, Res Ctr Urban Sustainable Dev, Guangzhou 510006, Peoples R China; Guangzhou Univ, Peoples R China; Guangzhou Univ, Peoples R China
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- Feng, Chunhua (författare)
- South China Univ Technol, Peoples R China
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- Huang, Lei (författare)
- Guangzhou Univ, Peoples R China
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- Zeng, Tianyu (författare)
- Guangzhou Univ, Peoples R China
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- Yan, Jia (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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(creator_code:org_t)
- ACADEMIC PRESS INC ELSEVIER SCIENCE, 2022
- 2022
- Engelska.
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Ingår i: Journal of Colloid and Interface Science. - : ACADEMIC PRESS INC ELSEVIER SCIENCE. - 0021-9797 .- 1095-7103. ; 628, s. 652-662
- 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
- Air cathode microbial fuel cell (AC-MFC) cannot be used on a large scale because of its low oxygen reduction reaction (ORR) efficiency. Despite the fact that bimetallic catalysts can greatly enhance the oxygen reduction rate by regulating the electronic structure of the active site, the flaws of insufficient exposure of the active site and easy metal agglomeration limit its catalytic activity. Herein, we report on the preparation of a stable heteroatomic substrate using a copper material organic framework as a precursor, covered by Fe-based active sites. As a result of dipole-dipole interactions, the reduced product Fe2+ forms a weak Fe-O surface that is conducive to the adsorption of active substances. The presence of Fe-0 enhances the electrical conductivity of the catalytic, thus promoting ORR efficiency. Through redox coupling, the D -band center of Fe at FeCu@CN is optimized and brought close to the Fermi level to facilitate electron transfer. Notably, FeCu@CN demonstrates a superior power density of 2796.23 +/- 278.58 mW m(-3), far exceeding that of Pt/C (1363.93 +/- 102.56 mW m(-3)), in the application of microbial fuel cells (MFCs). Meanwhile, the MFC-loaded FeCu@CN maintains excellent stability and outstanding output voltage after 1000 h, which provides feasibility for large-scale application. (C) 2022 Elsevier Inc. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- Bimetallic co-doped material; D-band center; Oxygen reduction reaction; Stability; Microbial fuel cells
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Li, Han
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Shi, HuiHui
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Dai, Yi
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You, HengHui
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Arulmani, Samuel ...
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Zhang, Hongguo
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visa fler...
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Feng, Chunhua
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Huang, Lei
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Zeng, Tianyu
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Yan, Jia
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Liu, Xianjie
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Annan kemi
- Artiklar i publikationen
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Journal of Collo ...
- Av lärosätet
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Linköpings universitet