Evident Enhancement of Photoelectrochemical Hydrogen Production by Electroless Deposition of M-B (M = Ni, Co) Catalysts on Silicon Nanowire Arrays

doi:10.1021/acsami.6b09600

	Evident Enhancement of Photoelectrochemical Hydrogen Production by Electroless Deposition of M-B (M = Ni, Co) Catalysts on Silicon Nanowire Arrays
	Sunt, Licheng 1,4; Yang, Yong 1; Wang, Mei 1; Zhang, Peili 1; Wang, Weihan 1; Han, Hongxian 2,3
刊名	ACS APPLIED MATERIALS & INTERFACES
	2016-11-09
卷号	8 期号:44 页码:30143-30151
关键词	Cobalt Boride Nickel Boride Silicon Photocathode Hydrogen Evolution Reaction Photoelectrochemical Catalysis
ISSN号	1944-8244
DOI	10.1021/acsami.6b09600
文献子类	Article
英文摘要	Modification of p-type Si surface by active and stable earth-abundant electrocatalysts is an effective strategy to improve the sluggish kinetics for the hydrogen evolution reaction (HER) at p-Si/electrolyte interface and to develop highly efficient and low-cost photocathodes for hydrogen production from water. To this end, Si nanowire (Si-NW) array has been loaded-with highly efficient electrocatalysts, M-B (M = Ni, Co), by facile and quick electroless plating to build M-B catalyst-modified Si nanowire-array-textured photocathodes for water reduction to H-2. Compared with the bare Si-NW array, composite Si-NWs/M-B arrays display evidently enhanced photoelectrochemical (PEC) performance. The onset potential (V-phon) of cathodic photocurrent is positively shifted by 530-540 mV to 0.44-0.45 V vs RHE, and the short-circuit current density (J(sc)) is up to 19.5 mA cm(-2) in neutral buffer solution under simulated 1 sun illumination. Impressively, the half-cell photopower conversion efficiencies (eta(hc)) of the optimized Si-NWs/Co-B (2.53%) and Si-NWs/Ni-B (2.45%) are comparable to that of Si-NWs/Pt (2.46%). In terms of the large J(sc), V-phon, and eta(hc) values, as well as the high Faradaic efficiency, Si-NW-s/M-B electrodes are among the top performing Si photocathodes which are modified with HER electrocatalysts but have no buried solid/solid junction.
WOS关键词	MOLYBDENUM SULFIDE CATALYST ; ATOMIC LAYER DEPOSITION ; EVOLUTION REACTION ; WATER REDUCTION ; RADIAL JUNCTION ; H-2 EVOLUTION ; P-SILICON ; PHOTOCATHODES ; GENERATION ; EFFICIENT
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000387737200035
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169706]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Wang, Mei
作者单位	1.Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, State Key Lab Fine Chem, Dalian 116024, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 4.KTH Royal Inst Technol, Dept Chem, S-10044 Stockholm, Sweden
推荐引用方式 GB/T 7714	Sunt, Licheng,Yang, Yong,Wang, Mei,et al. Evident Enhancement of Photoelectrochemical Hydrogen Production by Electroless Deposition of M-B (M = Ni, Co) Catalysts on Silicon Nanowire Arrays[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(44):30143-30151.
APA	Sunt, Licheng,Yang, Yong,Wang, Mei,Zhang, Peili,Wang, Weihan,&Han, Hongxian.(2016).Evident Enhancement of Photoelectrochemical Hydrogen Production by Electroless Deposition of M-B (M = Ni, Co) Catalysts on Silicon Nanowire Arrays.ACS APPLIED MATERIALS & INTERFACES,8(44),30143-30151.
MLA	Sunt, Licheng,et al."Evident Enhancement of Photoelectrochemical Hydrogen Production by Electroless Deposition of M-B (M = Ni, Co) Catalysts on Silicon Nanowire Arrays".ACS APPLIED MATERIALS & INTERFACES 8.44(2016):30143-30151.