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Tailoring the d-ban...
Tailoring the d-band center by intermetallic charge-transfer manipulation in bimetal alloy nanoparticle confined in N-doped carbon nanobox for efficient rechargeable Zn-air battery
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- Nie, Zhicheng (författare)
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Anhui, Huainan, China
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- Chen, Mengshan (författare)
- National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhejiang, Zhoushan, China
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- Zhang, Lei (författare)
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Anhui, Huainan, China
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- Feng, Qing (författare)
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Anhui, Huainan, China
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- Hu, Jinsong (författare)
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Anhui, Huainan, China
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- Huang, Xinhua (författare)
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Anhui, Huainan, China
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- Zhou, Chunhui (författare)
- School of Materials Science and Engineering, State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Anhui, Huainan, China
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- Zhou, Yingtang (författare)
- National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhejiang, Zhoushan, China
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- Wågberg, Thomas, 1971- (författare)
- Umeå universitet,Institutionen för fysik
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- Hu, Guangzhi (författare)
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Yunnan, Kunming, China
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(creator_code:org_t)
- Elsevier, 2023
- 2023
- Engelska.
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Ingår i: Chemical Engineering Journal. - : Elsevier. - 1385-8947 .- 1873-3212. ; 463
- 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
- In this effort, the electronic-structure modulation strategy through nano-alloying was rationally designed to fabricate Fe-Ni alloy particles embedded in an N-doped carbon nanobox. The as-developed catalyst outperformed the commercialized noble-metal benchmarks with a decent half-wave potential of 0.891 V for ORR and a small overpotential of 325 mV at 10 mA/cm2 for OER both in 0.1 M KOH solution. Beyond that, a highly-efficient regenerative Zn-air battery was also successfully constructed, evidenced by a small potential gap of 0.664 V (between Ej=10 and E1/2), a high specific capacity of 763 mAh/g, a large peak power density of 270 mW/cm2, and robust stability. Ultraviolet photoelectron spectroscopy and theoretical simulation confirmed that the alloying of Ni into Fe could well manipulate the electronic structure, leading to favorable intermetallic charge-transfer and then downshifting the d-band center of Fe adsorption sites, all of which help to significantly lower the reaction barriers of the involved intermediates during the electrocatalytic ORR/OER processes.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Bi-functional oxygen electrode
- Charge-transfer
- Ni-Fe alloy
- Nitrogen-doped carbon
- Zn-air battery
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Nie, Zhicheng
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Chen, Mengshan
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Zhang, Lei
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Feng, Qing
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Hu, Jinsong
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Huang, Xinhua
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visa fler...
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Zhou, Chunhui
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Zhou, Yingtang
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Wågberg, Thomas, ...
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Hu, Guangzhi
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