Graphene-coated copper nanowire networks as a highly stable transparent electrode in harsh environments toward efficient electrocatalytic hydrogen evolution reactions

Arumugam Manikandan, Ling Lee, Yi Chung Wang, Chia Wei Chen, Yu Ze Chen, Henry Medina, Jiun Yi Tseng, Zhiming M. Wang, Yu Lun Chueh

研究成果: Article同行評審

84 引文 斯高帕斯(Scopus)

摘要

Copper nanowire networks (NWs) coated with a graphene layer through a carbon-enclosed chemical vapor deposition technique at a low temperature of 400 °C with a low sheet resistance of 23.2 Ω sq-1 and a high transmittance of 83.4%, which is comparable to the typical values of tin-doped indium oxide (ITO), as a transparent conducting electrode were demonstrated. The graphene-coated copper NW networks retain a low sheet resistance of less than 25 Ω sq-1 even after annealing at a temperature of 240 °C in a pure oxygen environment for 1 h, while a sheet resistance less than 100 Ω sq-1 can still be maintained in natural sea water, and acidic and basic solutions. Their highly stable features in harsh environments make these graphene-coated copper nanowire networks suitable as a catalyst toward high-efficiency hydrogen evolution reactions (HERs) with a low overpotential of 252 mV at 10 mA Cm-2 and a low Tafel slope of 67 mV dec-1. The non-corrosive and anti-oxidant graphene-coated copper nanowire networks could be used as an alternative transparent conducting electrode in harsh environments, such as in tandem photocatalytic water splitting.

原文English
頁(從 - 到)13320-13328
頁數9
期刊Journal of Materials Chemistry A
5
發行號26
DOIs
出版狀態Published - 2017

All Science Journal Classification (ASJC) codes

  • 一般化學
  • 可再生能源、永續發展與環境
  • 一般材料科學

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