Tree branch-shaped cupric oxide for highly effective photoelectrochemical water reduction

Nanoscale
Youn Jeong JangJae Sung Lee

Abstract

Highly efficient tree branch-shaped CuO photocathodes are fabricated using the hybrid microwave annealing process with a silicon susceptor within 10 minutes. The unique hierarchical, one-dimensional structure provides more facile charge transport, larger surface areas, and increased crystallinity and crystal ordering with less defects compared to irregular-shaped CuO prepared by conventional thermal annealing. As a result, the photocathode fabricated with the tree branch-shaped CuO produces an unprecedently high photocurrent density of -4.4 mA cm(-2) at 0 VRHE under AM 1.5 G simulated sunlight compared to -1.44 mA cm(-2) observed for a photocathode fabricated by thermal annealing. It is also confirmed that stoichiometric hydrogen and oxygen are produced from photoelectrochemical water splitting on the tree branch-shaped CuO photocathode and a platinum anode.

References

Jun 22, 2005·Journal of Synchrotron Radiation·B Ravel, M Newville
Jun 30, 2005·Journal of the American Chemical Society·Ming YinStephen O'Brien
May 10, 2011·Nature Materials·Adriana ParacchinoElijah Thimsen
Jan 8, 2013·Journal of the American Chemical Society·Brian SegerIb Chorkendorff
Mar 8, 2013·Journal of the American Chemical Society·Eun Sun KimJae Sung Lee

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Citations

Feb 26, 2016·ACS Applied Materials & Interfaces·Youn Jeong JangJae Sung Lee
Jun 6, 2015·ACS Applied Materials & Interfaces·Jae Young KimJae Sung Lee
Jun 2, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Allison C CardielKyoung-Shin Choi
Sep 28, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Shi-Fang DuanDong-Dong Qin
Feb 23, 2018·Nature·Hao YanNicholas A Melosh
May 4, 2016·Chemical Communications : Chem Comm·Yidong HouXinchen Wang
Jun 13, 2021·Advanced Materials·Roozbeh Siavash MoakharMichael Saliba
Nov 7, 2019·Journal of the American Chemical Society·Margaret A LumleyKyoung-Shin Choi

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