期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 5, 期 26, 页码 13320-13328出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta01767g
关键词
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资金
- Ministry of Science and Technology [104-2628-M-007-004-MY3, 104-2221-E-007-048-MY3, 105-2633-M-007-003, 105-2119-M-009-009]
- National Tsing Hua University [105A0088J4]
Copper nanowire networks (NWs) coated with a graphene layer through a carbon-enclosed chemical vapor deposition technique at a low temperature of 400 degrees C with a low sheet resistance of 23.2 Omega 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 Omega sq(-1) even after annealing at a temperature of 240 degrees C in a pure oxygen environment for 1 h, while a sheet resistance less than 100 Omega 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.
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