The effect of strain on water dissociation on reduced rutile TiO2(110) surface

The effect of external uniaxial strain on water dissociation on a reduced rutile TiO2(110) surface has been theoretically studied using first-principles calculations. We find that when the tensile strain along [110] is applied, the energy barrier of water dissociation substantially decreases with th...

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Veröffentlicht in:RSC advances 2021-03, Vol.11 (15), p.8485-8490
Hauptverfasser: Zhi-Wen, Wang, Wei-Guang, Chen, Teng, Da, Zhang, Jie, An-Ming, Li, Zhao-Han, Li, Tang, Ya-Nan
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container_title RSC advances
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Wei-Guang, Chen
Teng, Da
Zhang, Jie
An-Ming, Li
Zhao-Han, Li
Tang, Ya-Nan
description The effect of external uniaxial strain on water dissociation on a reduced rutile TiO2(110) surface has been theoretically studied using first-principles calculations. We find that when the tensile strain along [110] is applied, the energy barrier of water dissociation substantially decreases with the increase of strain. In particular, water almost automatically dissociates when the strain is larger than 3%. Besides, the water dissociation mechanism changes from indirect to direct dissociation when the compressive strain is larger than 1.3% along [110] or 3% along [001]. The results strongly suggest that it is feasible to engineer the water dissociation on the reduced rutile TiO2(110) surface using external strain.
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subjects Chemistry
Compressive properties
Energy of dissociation
First principles
Rutile
Tensile strain
Titanium dioxide
title The effect of strain on water dissociation on reduced rutile TiO2(110) surface
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