Intensification of anodic charge transfer by contaminant degradation for efficient H-2 production

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Intensification of anodic charge transfer by contaminant degradation for efficient H-2 production
	Zhang, Kai; Zhang, Gong; Qu, Jiuhui; Liu, Huijuan
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2018-06-14
卷号	6 期号:22 页码:10297-10303
ISSN号	2050-7488
文献子类	Article
英文摘要	Hydrogen (H-2) production from electrocatalytic water splitting is at present limited by the sluggish oxygen evolution reaction (OER). Breakthroughs in low overpotential and stable anodic reactions are urgently needed to complement the rapid advancements in H-2 production. Using nickel (Ni)-based catalysts as an example, we intensified charge transfer on a nickel phosphide (Ni2P) anode for efficient H-2 production using substitution of contaminant degradation for the OER. Based on X-ray photoelectron spectroscopy (XPS) and in situ Raman spectroscopy, we confirmed that a decreased two-electron-transfer pathway was responsible for the superior formate oxidation, whereas the formation of the desired oxidation state of Ni-III accounted for the efficient urea degradation. Both scenarios were beneficial for accelerating charge transfer across the interface between the anode and electrolyte, thus achieving high H-2 production efficiency at low voltage. A voltage of only 1.40 V supported currents of 12.5 and 6.0 mA in urea- and formate-containing solutions, respectively, which reached 150 and 60 mA after the voltage was increased to 1.70 V, several times higher than that under basic conditions.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41154]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Zhang, Kai,Zhang, Gong,Qu, Jiuhui,et al. Intensification of anodic charge transfer by contaminant degradation for efficient H-2 production[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(22):10297-10303.
APA	Zhang, Kai,Zhang, Gong,Qu, Jiuhui,&Liu, Huijuan.(2018).Intensification of anodic charge transfer by contaminant degradation for efficient H-2 production.JOURNAL OF MATERIALS CHEMISTRY A,6(22),10297-10303.
MLA	Zhang, Kai,et al."Intensification of anodic charge transfer by contaminant degradation for efficient H-2 production".JOURNAL OF MATERIALS CHEMISTRY A 6.22(2018):10297-10303.