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 language | English (US) |
|---|---|
| Pages (from-to) | 177-181 |
| Number of pages | 5 |
| Journal | Nanoscale Advances |
| Volume | 3 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2021 |
Bibliographical note
KAUST Repository Item: Exported on 2021-01-18Acknowledgements: 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).