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Electronic configuration modulation of tin dioxide by phosphorus dopant for pathway change in electrocatalytic water oxidation

Electronic configuration modulation of tin dioxide by phosphorus dopant for pathway change in electrocatalytic water oxidation

Authors :
Ying Zhang
Ning Zhang
Yanyu Liu
Renzhi Ma
Hao Wan
Wei Ma
Gen Chen
Xiaohe Liu
Xue Xiao
Yijun Cao
Source :
Inorganic Chemistry Frontiers. 9:83-89
Publication Year :
2022
Publisher :
Royal Society of Chemistry (RSC), 2022.

Abstract

The oxygen evolution process is a crucial part determining the total reaction kinetics of electrocatalytic overall water splitting for clean hydrogen production. However, for some semiconductor materials, e.g. tin dioxide (SnO2) and tungsten oxide (WO3), the water oxidation process generally proceeds following the two-electron pathway with rather high driving potential for the generation of hydrogen peroxide (H2O2 or HO2−). In this work, efficient electronic configuration modulation of SnO2 nanoparticles was realized by non-metallic phosphorus (P) doping, giving rise to the considerable transformation into a four-electron transfer-governed water oxidation reaction with the electrocatalytic activity even comparable to the benchmark RuO2 nanoparticles. These results validate the great potential in remarkably tuning the electrocatalytic performance of transition metal compound electrocatalysts with non-metallic element dopants.

Details

ISSN :
20521553
Volume :
9
Database :
OpenAIRE
Journal :
Inorganic Chemistry Frontiers
Accession number :
edsair.doi...........52447e5afb6f94a81566756cde8eb0a0
Full Text :
https://doi.org/10.1039/d1qi01169c