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Enhanced oxygen red...
Enhanced oxygen reduction upon Ag/Fe co-doped UiO-66-NH2-derived porous carbon as bacteriostatic catalysts in microbial fuel cells
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- Zhong, Kengqiang (författare)
- Guangzhou Univ, Peoples R China; Univ Sci & Technol China, Peoples R China
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- Huang, Linzhe (författare)
- Guangzhou Univ, Peoples R China
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- Li, Han (författare)
- Guangzhou Univ, Peoples R China
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- Dai, Yi (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
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- Yang, Ruoyun (författare)
- Guangzhou Univ, Peoples R China
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- Arulmani, Samuel Raj Babu (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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- Huang, Lei (författare)
- Guangzhou Univ, Peoples R China
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- Yan, Jia (författare)
- Guangzhou Univ, Peoples R China
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(creator_code:org_t)
- PERGAMON-ELSEVIER SCIENCE LTD, 2021
- 2021
- Engelska.
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Ingår i: Carbon. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0008-6223 .- 1873-3891. ; 183, s. 62-75
- 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
- As a promising energy storage/conversion technology, the microbial fuel cell (MFC) is generally restricted by the biofouling on the cathode and the sluggish kinetics of oxygen reduction reaction (ORR). Consequently, developing bacteriostatic and high-performance ORR catalysts is critical for the large-scale application of MFC. Herein, we prepare an electrocatalyst of porous octahedral zirconium-based metal organic framework (MOF) UiO-66-NH2 with dispersed Ag and Fe3C nanoparticles (Ag/Fe-N-C) through a facile impregnation and pyrolysis method for an efficient alkaline and neutral ORR. Systematic experimental results demonstrate that the synergistic effect of Ag and Fe can optimize the d-band center of catalyst to boost the interfacial charge transfer, thus resulting in an increased ORR kinetics. As expected, the catalyst with Ag/Fe-N-C-2:1 exhibits outstanding onset potential (1.01 V vs. RHE) and half-wave potential (0.58 V vs. RHE) in neutral electrolyte, which is comparable to Pt/C catalyst. Meanwhile, Ag/Fe-N-C-2:1 indicates obvious antibacterial activity, inhibiting the biofouling on the cathode surface. The MFC with the Ag/Fe-N-C-2:1 as the cathode catalyst can achieve a maximum power density of 1261.1 +/- 24 mW m(-3), outperforms the MFC with Pt/C (1087.5 +/- 14 mW m(-3)). In summary, Ag/Fe-N-C2:1 composite can serve as a feasible alternative cathode catalyst for MFC. (C) 2021 Elsevier Ltd. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
Nyckelord
- Microbial fuel cell; Oxygen reduction reaction; Metal organic frameworks; Antibacterial
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Carbon
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Zhong, Kengqiang
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Huang, Linzhe
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Li, Han
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Dai, Yi
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Zhang, Hongguo
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Yang, Ruoyun
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visa fler...
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Arulmani, Samuel ...
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Liu, Xianjie
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Huang, Lei
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Yan, Jia
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Oorganisk kemi
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Carbon
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Linköpings universitet