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Au icosahedrons as efficient electrocatalyst for glucose-based biofuel cells by strain engineering
journal contribution
posted on 2020-03-15, 00:00 authored by Z Fu, M Wu, X Yang, J Ding, Weiwei LeiWeiwei Lei, Y Sui, B Zou© 2019 Elsevier B.V. Strain engineering has proven to be a powerful method in tailoring the surface electronic structure and the catalytic properties of nanomaterials. Here, we develope a green and effective strategy for synthesis of Au icosahedron and report systematic studies Au nanocrystals (including cubes, octahedrons, and icosahedrons) with similar nanosizes as efficient electrocatalyst for glucose-based biofuel cells. Our results demonstrate that the penta-twinned Au icosahedron catalyst shows a maximum specific activity in glucose electrooxidation with 2.5 mA cm−2 current density, which is over 3 times higher than the Au octahedron catalyst. The microstructures of Au icosahedron confirm that such enhanced electrocatalytic activity could be ascribed to the intrinsic surface strain.
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Journal
Materials LettersVolume
263Article number
127220Pagination
1 - 4Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0167-577XeISSN
1873-4979Language
engPublication classification
C1 Refereed article in a scholarly journalUsage metrics
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