Photoelectrochemical Water Splitting with p‐Type Metal Oxide Semiconductor Photocathodes

Photoelectrochemical (PEC) water splitting is a promising way to produce clean and sustainable hydrogen fuel. Solar hydrogen production by using p‐type metal oxide semiconductor photocathodes has not been studied as extensively as that with n‐type metal oxide semiconductor photoanodes and p‐type pho...

Full description

Saved in:
Bibliographic Details
Published in:ChemSusChem 2019-05, Vol.12 (9), p.1835-1845
Main Authors: Jang, Youn Jeong, Lee, Jae Sung
Format: Article
Language:English
Subjects:
Aqueous solutions
Charge transport
electrochemistry
Hydrogen fuels
Hydrogen production
Metal oxide semiconductors
Metal oxides
Oxidation
Photocathodes
photochemistry
semiconductors
Stability
Water splitting
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Photoelectrochemical (PEC) water splitting is a promising way to produce clean and sustainable hydrogen fuel. Solar hydrogen production by using p‐type metal oxide semiconductor photocathodes has not been studied as extensively as that with n‐type metal oxide semiconductor photoanodes and p‐type photovoltaic‐grade non‐oxide semiconductor photocathodes. Copper‐based oxide photocathodes show relatively good conductivity, but suffer from instability in aqueous solution under illumination, whereas iron‐based metal oxide photocathodes demonstrate more stable PEC performance but have problems in charge separation and transport. Herein, an overview of recent progress in p‐type metal oxide‐based photocathodes for PEC water reduction is provided. Although these materials have not been fully developed to reach their potential performance, the challenges involved have been identified and strategies to overcome these limitations have been proposed. Future research in this field should address these issues and challenges in addition to the discovery of new materials. Progressing p‐type performance: An overview of recent progress in the preparation of p‐type metal oxide‐based photocathodes for photoelectrochemical water reduction is provided. Although the materials have not yet reached their full performance potential, the challenges involved have been identified and strategies to overcome the limitations have been proposed.
ISSN:1864-5631
1864-564X
DOI:10.1002/cssc.201802596