In situ transformation of Cu2O@MnO2 to Cu@Mn(OH)(2) nanosheet-on-nanowire arrays for efficient hydrogen evolution

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	In situ transformation of Cu2O@MnO2 to Cu@Mn(OH)(2) nanosheet-on-nanowire arrays for efficient hydrogen evolution
	Chen, Li; Zhang, Xing; Jiang, Wenjie; Zhang, Yun; Huang, Linbo; Chen, Yuyun; Yang, Yuguo; Li, Li; Hu, Jinsong
刊名	NANO RESEARCH
	2018-04-01
卷号	11 期号:4 页码:1798-1809
英文摘要	The development of new non-precious metal catalysts and understanding the origin of their activity for the hydrogen evolution reaction (HER) are essential for rationally designing highly active low-cost catalysts as alternatives to state-of-the-art precious metal catalysts. Herein, manganese oxide/hydroxide was demonstrated as a highly active electrocatalysts for the HER by fabricating MnO2 nanosheets coated with Cu2O nanowire arrays (Cu2O@MnO2 NW@NS) on Cu foam followed by an in situ chronopotentiometry (CP) treatment. It was discovered that the in situ transformation of Cu2O@MnO2 into Cu@Mn(OH)(2) NW@NS by the CP treatment drastically boosted the catalytic activity for the HER due to an enhancement of its intrinsic activity. Together with the benefits from such three-dimensional (3D) core-shell arrays for exposing more accessible active sites and efficient mass and electron transfers, the resulting Cu@Mn(OH)(2) NW@NS exhibited excellent HER activity and outstanding durability in terms of a low overpotential of 132 mV vs. RHE at 10 mA/cm(2). Overall, we expect these findings to generate new opportunities for the exploration of other Mn-based nanomaterials as efficient electrocatalysts and enable further understanding of their catalytic processes.
WOS记录号	WOS:000427907700005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38697]
专题	化学研究所_其它
推荐引用方式 GB/T 7714	Chen, Li,Zhang, Xing,Jiang, Wenjie,et al. In situ transformation of Cu2O@MnO2 to Cu@Mn(OH)(2) nanosheet-on-nanowire arrays for efficient hydrogen evolution[J]. NANO RESEARCH,2018,11(4):1798-1809.
APA	Chen, Li.,Zhang, Xing.,Jiang, Wenjie.,Zhang, Yun.,Huang, Linbo.,...&Hu, Jinsong.(2018).In situ transformation of Cu2O@MnO2 to Cu@Mn(OH)(2) nanosheet-on-nanowire arrays for efficient hydrogen evolution.NANO RESEARCH,11(4),1798-1809.
MLA	Chen, Li,et al."In situ transformation of Cu2O@MnO2 to Cu@Mn(OH)(2) nanosheet-on-nanowire arrays for efficient hydrogen evolution".NANO RESEARCH 11.4(2018):1798-1809.