Hierarchical nanowire arrays based on carbon nanotubes and Co3O4 decorated ZnO for enhanced photoelectrochemical water oxidation

Li, Mu; Chang, Kun; Wang, Tao et al.

Journal of Materials Chemistry A, 2015, 3(26), 13731-13737

Permalink : https://hdl.handle.net/2115/62389

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アクセス権
open access
URI
https://hdl.handle.net/2115/62389
タイトル
Hierarchical nanowire arrays based on carbon nanotubes and Co3O4 decorated ZnO for enhanced photoelectrochemical water oxidation
著者
Li, Mu ; Chang, Kun ; Wang, Tao ; Liu, Lequan ; Zhang, Huabin ; Li, Peng ; Ye, Jinhua
著者名
Li, Mu
著者名
Chang, Kun
著者名
Wang, Tao
著者名
Liu, Lequan
著者名
Zhang, Huabin
著者名
Li, Peng
e-Rad_Researcher
90230630
著者名
Ye, Jinhua
言語
英語
発行日
2015-07-14
出版者
Royal Society of Chemistry (RSC)
収録物名
Journal of Materials Chemistry A
巻(号)
3(26)
ページ
13731-13737
抄録
A highly enhanced activity for photoelectrochemical water splitting was achieved by fabricating carbon nanotube (CNT) and Co3O4 decorated hierarchical ZnO nanowire (NW) arrays via a facile stepwise synthesis strategy. The ternary CNT-ZnO-Co3O4 NW composite exhibits an increased photocurrent density (1.9 mA cm(-2) at 0.6 V vs. Ag/AgCl, 2.7 times larger than that of the pristine ZnO NWs) and improved incident photon to current conversion efficiency (52.5% at 340 nm, 5.1 times higher than that of the pristine ZnO NWs) as a photoanode under AM 1.5G simulated sunlight. This enhancement is attributed to the specific heterogeneous ternary architecture, which results in promoted electron-hole charge separation and transfer, decreased water oxidation overpotential as well as increased reaction rates of water splitting by decorating ZnO NWs with CNTs and Co3O4.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
2050-7488
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1039/c5ta02901e