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Updated: May 29, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
Published on: February 8, 2018
Interfacial creation of positively charged sites in LaPO4/Fe3(PO4)2 heterojunctions for high-current-density oxygen
Sitong Liu1,2, Yudi Zhang2,3, Wen Sun2,3
1State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China. dszhang@shu.edu.cn.
Abstract:
The creation of positively charged active sites is crucial for enhancing the adsorption of negatively charged hydroxide ions, thereby improving the sluggish oxygen evolution reaction (OER). We engineered LaPO4/Fe3(PO4)2 heterojunctions with a low flat-band potential, facilitating interfacial charge transfer and generation of positively charged holes, resulting in a highly active and stable OER catalyst at 500 mA cm-2.

