Composition-optimized TiO2/CdSxSe1-x core/shell nanowire arrays for photoelectrochemical hydrogen generation

Composition-optimized TiO2/CdSxSe1-x core/shell nanowire arrays for photoelectrochemical hydrogen generation
复制标题

用于光电化学制氢的成分优化的 TiO2/CdSxSe1-x 核/壳纳米线阵列

DOI:
10.1063/1.4901001
复制
发表时间:
2014-11
影响因子:
3.2
通讯作者:
Jianxin Zhong
Jianxin Zhong
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Guanjie Ai;Rong Mo;Hang Xu;Qian Chen;Sui Yang;Hongxing Li;Jianxin Zhong

文献摘要

参考文献

被引文献

相似文献

以FTO为导电基底,在水热法制备的TiO 2纳米线阵列上,通过物理气相沉积法制备了CdSxSe 1-x纳米线阵列(NWAs)。通过改变TiO 2/CdSxSe 1-x纳米复合材料中硫含量(x),观察到光吸收边在540 ~ 710 nm的宽波长范围内逐渐调谐。当用作光阳极时,所制备的TiO 2/CdSxSe(1-x)NWAs显示出比纯TiO 2 NWAs高得多的光电催化活性。此外,x = 0.52的TiO 2/CdSxSe 1-x光电极具有最高的光电流水平和优异的稳定性,更适合于长时间产氢。本研究对于设计具有最佳化学成分的合金异质结光电极,以获得更高效率的太阳能转换装置,具有重要的参考价值。
Core/shell heterostructured TiO2/CdSxSe1-x nanowire arrays (NWAs) were prepared via physical vapor deposition of CdSxSe1-x layer onto the hydrothermal pre-grown TiO2 NWAs with FTO as conductive substrate. By change the sulfur content (x) in the TiO2/CdSxSe1-x nano-composites, it was observed that the light absorption edge can be gradually tuned within a broad wavelength from 540 to 710 nm. When used as photoanodes for hydrogen generation, the as-prepared TiO2/CdSxSe1-x NWAs show much higher photoelectroncatalytic activity than the pristine TiO2 NWAs. Moreover, the TiO2/CdSxSe1-x photoelectrode with x = 0.52 exhibited the highest photocurrent level and outstanding stability, which is more suitable for long-time hydrogen generation. This study may be useful in the design of alloy hetrostructure photoelectrodes with optimal chemical composition toward the more efficient solar conversion devices.
DOI: 10.1039/b718969a
发表时间: 2008-05-28
影响因子: --
作者:
van de Krol, Roe;Liang, Yongqi;Schoonman, Joop
通讯作者: Schoonman, Joop
DOI: 10.1063/1.4745918
发表时间: 2012-08
影响因子: 4
作者:
Zhenxing Wang;Xueying Zhan;Yajun Wang;M. Safdar;Mutong Niu;Jinping Zhang;Ying Huang;Jun He
通讯作者: Zhenxing Wang;Xueying Zhan;Yajun Wang;M. Safdar;Mutong Niu;Jinping Zhang;Ying Huang;Jun He
DOI: 10.1007/bf01349680
发表时间: 1921-04-01
影响因子: --
作者:
Vegard, L
通讯作者: Vegard, L
DOI: 10.1021/jp204747w
发表时间: 2012-02-09
影响因子: 3.7
作者:
Li, Hongxing;Cheng, Chuanwei;Fan, Hong Jin
通讯作者: Fan, Hong Jin
DOI: 10.1088/0957-4484/17/4/040
发表时间: 2006-02-28
期刊: NANOTECHNOLOGY
影响因子: 3.5
作者:
Pan, AL;Yang, H;Zou, BS
通讯作者: Zou, BS