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Anchoring Fe Specie...
Anchoring Fe Species on the Highly Curved Surface of S and N Co-Doped Carbonaceous Nanosprings for Oxygen Electrocatalysis and a Flexible Zinc-Air Battery
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Wang, Yanzhi (author)
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- Yang, Taimin, 1991- (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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Fan, Xing (author)
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Bao, Zijia (author)
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Tayal, Akhil (author)
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Tan, Huang (author)
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Shi, Mengke (author)
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Liang, Zuozhong (author)
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Zhang, Wei (author)
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Lin, Haiping (author)
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Cao, Rui (author)
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- Huang, Zhehao, 1987- (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),South China University of Technology, China
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Zheng, Haoquan (author)
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(creator_code:org_t)
- 2024
- 2024
- English.
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In: Angewandte Chemie International Edition. - 1433-7851 .- 1521-3773. ; 63:7
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Oxygen reduction reaction (ORR) is of critical significance in the advancement of fuel cells and zinc-air batteries. The iron-nitrogen (Fe−Nx) sites exhibited exceptional reactivity towards ORR. However, the task of designing and controlling the local structure of Fe species for high ORR activity and stability remains a challenge. Herein, we have achieved successful immobilization of Fe species onto the highly curved surface of S, N co-doped carbonaceous nanosprings (denoted as FeNS/Fe3C@CNS). The induction of this twisted configuration within FeNS/Fe3C@CNS arose from the assembly of chiral templates. For electrocatalytic ORR tests, FeNS/Fe3C@CNS exhibits a half-wave potential (E1/2) of 0.91 V in alkaline medium and a E1/2 of 0.78 V in acidic medium. The Fe single atoms and Fe3C nanoparticles are coexistent and play as active centers within FeNS/Fe3C@CNS. The highly curved surface, coupled with S substitution in the coordination layer, served to reduce the energy barrier for ORR, thereby enhancing the intrinsic catalytic activity of the Fe single-atom sites. We also assembled a wearable flexible Zn-air battery using FeNS/Fe3C@CNS as electrocatalysts. This work provides new insights into the construction of highly curved surfaces within carbon materials, offering high electrocatalytic efficacy and remarkable performance for flexible energy conversion devices.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Curved Surface
- Iron
- Nanospring
- Oxygen Reduction Reaction
- Zn-Air Battery
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Wang, Yanzhi
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Yang, Taimin, 19 ...
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Fan, Xing
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Bao, Zijia
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Tayal, Akhil
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Tan, Huang
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show more...
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Shi, Mengke
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Liang, Zuozhong
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Zhang, Wei
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Lin, Haiping
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Cao, Rui
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Huang, Zhehao, 1 ...
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Zheng, Haoquan
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
- Articles in the publication
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Angewandte Chemi ...
- By the university
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Stockholm University