DataVXChemNanoMatPaper
journal article·2016-07

Nonequilibrium Ti4+ Doping Significantly Enhances the Performance of Fe2O3 Photoanodes by Quenching

Ting Wang, Wenjun Luo, Xin Wen, Zhigang Zou, Wei Huang

ChemNanoMat· Volume 2· Issue 7
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Source abstract

Abstract

Abstract Hematite (α‐Fe2O3) is one of the most promising photoanodes for solar water splitting due to its narrow band gap, high photostability and low cost. Though intensive studies have been done on α‐Fe2O3 photoelectrodes in the past decades, the reported record efficiency is still much lower than the theoretical maximum value (about 16 %). High resistance is one of key challenges for high performance. In this work, we used a facile quenching method to realize nonequilibrium Ti4+ doping and decrease resistance of a Fe2O3 photoanode, which indicated much higher performance than that of a sample cooled naturally by conventional methods. To the best of our knowledge, this is the first demonstration of improving the performance of doped Fe2O3 by a quenching method. This method can serve as a reference for other doped photoelectrodes for solar water splitting.
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Research context

OpenAlex topics: Iron oxide chemistry and applications · Advanced Photocatalysis Techniques · Arsenic contamination and mitigation

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211816 P.R. China

Eco-materials and Renewable Energy Research Center (ERERC) National Laboratory of Solid State Microstructures and Department of Physics Nanjing University Nanjing 210093 P.R. China

Key Laboratory for Organic Electronics and Information Displays and Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing University of Posts & Telecommunications 9 Wenyuan Road Nanjing 210023 P.R. China

Funding

National Basic Research Program of China · Natural Science Foundation of Jiangsu Province of China · Synergetic Innovation Center for Organic Electronics and Information Displays · Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) · Open Research Fund of Key Laboratory for Organic Electronics & Information Displays · Science Research Division of Nanjing Tech University

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