Hydrogen Evolution from Pt Nanoparticles Covered p-Type CdS:Cu Photocathode in Scavenger-Free Electrolyte

	Hydrogen Evolution from Pt Nanoparticles Covered p-Type CdS:Cu Photocathode in Scavenger-Free Electrolyte
	Qiang Huang; Quan Li; Xudong Xiao
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2014
英文摘要	The photoelectrolysis of water to generate hydrogen by semiconductor photoelectrodes has been known to be a promising approach to utilize clean and sustainable solar energy. In this study, photocathode based on p-type CdS:Cu was successfully fabricated by the thermal evaporation process and photoelectrochemical investigations were carried out to determine its water photoelectrolysis potential. Cu doping concentration at 5.4% was found to be the optimal doping level and the bare CdS:Cu photocathode showed a large transient photocurrent as a result of the slow water reduction kinetics of the photoinduced electrons at the photoelectrode/electrolyte interface. The electrons accumulated at the interface and caused the photocathode to suffer from photodegradation during the stability test. After modifying the photocathode surface with the Pt nanoparticles to reduce the hydrogen evolving reaction overpotential, both the photocurrent and stability were enhanced. Hydrogen evolution from the CdS:Cu/Pt surface in the near neutral and scavenger-free electrolyte demonstrated for the first time the CdS with p-type conductivity was a feasible candidate for solar water splitting.
收录类别	SCI
原文出处	http://pubs.acs.org/doi/abs/10.1021/jp410242e
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/5370]
专题	深圳先进技术研究院_集成所
作者单位	JOURNAL OF PHYSICAL CHEMISTRY C
推荐引用方式 GB/T 7714	Qiang Huang,Quan Li,Xudong Xiao. Hydrogen Evolution from Pt Nanoparticles Covered p-Type CdS:Cu Photocathode in Scavenger-Free Electrolyte[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2014.
APA	Qiang Huang,Quan Li,&Xudong Xiao.(2014).Hydrogen Evolution from Pt Nanoparticles Covered p-Type CdS:Cu Photocathode in Scavenger-Free Electrolyte.JOURNAL OF PHYSICAL CHEMISTRY C.
MLA	Qiang Huang,et al."Hydrogen Evolution from Pt Nanoparticles Covered p-Type CdS:Cu Photocathode in Scavenger-Free Electrolyte".JOURNAL OF PHYSICAL CHEMISTRY C (2014).