Solar Hydrogen Production from Zinc Telluride Photocathode Modified with Carbon and Molybdenum Sulfide

ACS Applied Materials & Interfaces
Youn Jeong JangJae Sung Lee

Abstract

A zinc telluride (ZnTe) film modified with MoS2 and carbon has been studied as a new photocathode for solar hydrogen production from photoelectrochemical (PEC) water splitting. The modification enhances PEC activity and stability of the photocathode. Thus, the MoS2/C/ZnTe/ZnO electrode exhibits highly improved activity of -1.48 mA cm(-2) at 0 VRHE with a positively shifted onset potential up to 0.3 VRHE relative to bare ZnO/ZnTe electrode (-0.19 mA cm(-2), 0.18 VRHE) under the simulated 1 sun illumination. This represents the highest value ever reported for ZnTe-based electrodes in PEC water splitting. The carbon densely covers the surface of ZnTe to protect it against photocorrosion in aqueous electrolyte and improves charge separation. In addition, MoS2 further enhances the PEC performance as a hydrogen evolution co-catalyst.

References

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Jul 7, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Seungho ChoKun-Hong Lee
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Jul 19, 2012·The Journal of Physical Chemistry Letters·Carrie G ReadKyoung-Shin Choi

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Citations

Jul 8, 2016·Chemical Communications : Chem Comm·Youn Jeong JangJae Sung Lee
May 3, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Shouli BaiAifan Chen
Aug 15, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·C K Sumesh, Sebastian C Peter
Jul 22, 2021·Journal of Chemical Information and Modeling·Oxana AndriucKristin A Persson

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