Noble metal nanowire arrays as an ethanol oxidation electrocatalyst

Zhenhui Lam, Cuicui Liu, Dongmeng Su, Hua Bing Tao, Hsin Yi Wang, Jiazang Chen, Weichang Xu, Liping Zhang, Yihan Zhu, L. M. Liu, Yu Han, Hongyu Chen, Bin Liu

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Vertically aligned noble metal nanowire arrays were grown on conductive electrodes based on a solution growth method. They show significant improvement of electrocatalytic activity in ethanol oxidation, from a re-deposited sample of the same detached nanowires. The unusual morphology provides open diffusion channels and direct charge transport pathways, in addition to the high electrochemically active surface from the ultrathin nanowires. Our best nanowire arrays exhibited much enhanced electrocatalytic activity, achieving a 38.0 fold increase in specific activity over that of commercial catalysts for ethanol electrooxidation. The structural design provides a new direction to enhance the electrocatalytic activity and reduce the size of electrodes for miniaturization of portable electrochemical devices.
Original languageEnglish (US)
Pages (from-to)177-181
Number of pages5
JournalNanoscale Advances
Volume3
Issue number1
DOIs
StatePublished - 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-01-18
Acknowledgements: We would like to acknowledge funding support from Singapore Ministry of Education Academic Research Fund (AcRF) Tier 1: RG5/16 and RG1/15, Singapore A*Star Science and Engineering Research Council – Public Sector Funding (PSF): 1421200075 and the National Research Foundation (NRF), Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) program as well as financial support from Nanjing Tech University and SICAM Fellowship from Jiangsu National Synergetic Innovation Center for Advanced Materials, National Natural Science Foundation of China (No. 21673117), Taizhou 500 Talent Program (2016NMS01) and Taizhou Municipal Science and Technology Program (2016NMS02).

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