Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/155755
Title: Insights into improving photoelectrochemical water-splitting performance using hematite anode
Authors: Devi, Hemam Rachna
Ong, Boon Chong
Zhao, Xin
Dong, Zhili
Nanda, Karuna Kar
Chen, Zhong
Keywords: Engineering::Materials
Issue Date: 2022
Source: Devi, H. R., Ong, B. C., Zhao, X., Dong, Z., Nanda, K. K. & Chen, Z. (2022). Insights into improving photoelectrochemical water-splitting performance using hematite anode. Energy Technology, 10(1), 2100457-. https://dx.doi.org/10.1002/ente.202100457
Project: RG15/16
RG16/18
Journal: Energy Technology
Abstract: Designing an efficient photoanode is of great importance for photoassisted solar water splitting. Herein, a series of modifications to a nanorod structure hematite, to be used as anode for photoelectrochemical (PEC) water-splitting reactions is designed. Ti doping, oxygen vacancy formation by N2 treatment, TiO2 passivation, and FeOOH cocatalyst decoration are explored for their roles and contributions to the improvement of the PEC water oxidation performance. It is found that Ti doping and N2 treatment can greatly increase the charge carrier density, which has boosted the photocurrent. TiO2 passivation enhances the photovoltage, resulting in a cathodic shift in the onset potential (≈170 mV with respect to prepassivation). Further, the FeOOH cocatalyst decoration improves the reaction kinetics, thereby improving the overall photoassisted water oxidation performance.
URI: https://hdl.handle.net/10356/155755
ISSN: 2194-4296
DOI: 10.1002/ente.202100457
Rights: This is the peer reviewed version of the following article: Devi, H. R., Ong, B. C., Zhao, X., Dong, Z., Nanda, K. K. & Chen, Z. (2022). Insights into improving photoelectrochemical water-splitting performance using hematite anode. Energy Technology, 10(1), 2100457-, which has been published in final form at doi.org/10.1002/ente.202100457. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: embargo_20230207
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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