CdS nanoparticles sensitized large-scale patterned ZnO nanowire arrays for enhanced solar water splitting

2016 ◽  
Vol 20 (12) ◽  
pp. 3499-3505 ◽  
Author(s):  
Zhiming Bai ◽  
Yinghua Zhang
2018 ◽  
Vol 8 (11) ◽  
pp. 2789-2793 ◽  
Author(s):  
Shurong Fu ◽  
Beibei Zhang ◽  
Hongyan Hu ◽  
Yajun Zhang ◽  
Yingpu Bi

Vertically-oriented PtO nanowires have been selectively grown on ZnO nanowire arrays for the first time by a light-controlled method and were utilized as highly efficient OER cocatalysts for remarkably enhancing the PEC performance of water splitting.


2016 ◽  
Vol 4 (14) ◽  
pp. 5124-5129 ◽  
Author(s):  
Yang-Fan Xu ◽  
Hua-Shang Rao ◽  
Xu-Dong Wang ◽  
Hong-Yan Chen ◽  
Dai-Bin Kuang ◽  
...  

A simple wet-chemical treating method is introduced to in situ fabricate ZnFe2O4 onto conductive Al:ZnO nanowire arrays for solar-driven water splitting.


Author(s):  
Dingwang Huang ◽  
Kang Wang ◽  
Lintao Li ◽  
Kuang Feng ◽  
Na An ◽  
...  

3.17% efficient Cu2ZnSnS4–BiVO4 integrated tandem cell and a large scale 5 × 5 cm integrated CZTS–BiVO4 tandem device for standalone overall solar water splitting was assembled for the first time.


NANO ◽  
2019 ◽  
Vol 14 (11) ◽  
pp. 1950146
Author(s):  
Jia Liu ◽  
Yinghua Zhang ◽  
Zhiming Bai ◽  
Zhian Huang ◽  
Yukun Gao ◽  
...  

An integrated tandem photoelectrochemical (PEC) cell, composed of a three-dimensional (3D) ZnO/CdS/NiFe layered double hydroxide (LDH) core/shell/hierarchical nanowire arrays (NWAs) photoanode and a [Formula: see text]-Cu2O photocathode, was designed for unassisted overall solar water splitting in this study. The optical and photoelectrochemical characteristics of ZnO-based photoanodes and Cu2O photocathode were investigated. The results show that ZnO/CdS/NiFe LDH nanostructures offer significantly enhanced performances with a photocurrent density reaching 5.8[Formula: see text]mA[Formula: see text][Formula: see text][Formula: see text]cm[Formula: see text] at 0.9[Formula: see text]V and an onset potential as early as 0.1[Formula: see text]V (versus RHE). The enhancement can be attributed to the existence of CdS nanoparticles (NPs) which boosts the light absorption in visible region and enhances charge separation. Moreover, the introduction of NiFe LDH nanoplates, with unique hierarchical mesoporous architecture, promotes electrochemical reactions by providing more active sites as co-catalyst. On the above basis, the ZnO/CdS/NiFe LDH–Cu2O two-electrode tandem cell system was established. At zero bias, the device shows a photocurrent density of 0.4[Formula: see text]mA[Formula: see text][Formula: see text][Formula: see text]cm[Formula: see text] along with the corresponding solar-to-hydrogen (STH) conversion efficiency reaching 0.50%. Our results indicate that the tandem PEC cells consisting of metal–oxide–semiconductor photoelectrodes based on Earth-abundant and low-cost materials hold promising application potential for overall solar water splitting.


2020 ◽  
Vol 8 (7) ◽  
pp. 3845-3850 ◽  
Author(s):  
Meirong Huang ◽  
Wenhai Lei ◽  
Min Wang ◽  
Shuji Zhao ◽  
Changli Li ◽  
...  

Large-scale BiVO4 photoanodes were prepared for solar water splitting. A photocurrent density of water oxidation of ∼2.23 mA cm−2 at 1.23 VRHE and ∼0.83% conversion efficiency at 0.65 VRHE were achieved, with <4% decay after 5 h of operation under harsh conditions.


Carbon ◽  
2017 ◽  
Vol 121 ◽  
pp. 201-208 ◽  
Author(s):  
Xiaoyong Xu ◽  
Zhijia Bao ◽  
Wenshuai Tang ◽  
Haiyan Wu ◽  
Jing Pan ◽  
...  

2015 ◽  
Vol 6 (3) ◽  
pp. 1501459 ◽  
Author(s):  
Zhiming Bai ◽  
Xiaoqin Yan ◽  
Yong Li ◽  
Zhuo Kang ◽  
Shiyao Cao ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (49) ◽  
pp. 30548-30553 ◽  
Author(s):  
Yiyuan Xie ◽  
Yang Ju ◽  
Yuhki Toku ◽  
Yasuyuki Morita

In this research, we propose a new simple method to fabricate high-density Fe2O3 nanowire arrays for solar water splitting, based on oxidation-assisted stress-induced atomic-diffusion.


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