Stable and efficient chlorine evolution reaction with atomically dispersed Ru on surface tensile strained TiO2

被引：5

作者：

Jadhav, Amol R. ^{[1
,7
]}

Liu, Xinghui ^{[2
]}

Silambarasan, P. ^{[1
]}

Kanade, Vinit ^{[3
]}

Liu, Yang ^{[1
]}

Nga, Ta Thi Thuy ^{[6
]}

Yang, Taehun ^{[1
]}

Kim, My Tran ^{[1
]}

Han, Yeonsu ^{[1
]}

Kim, Taesung ^{[3
]}

Shao, Xiaodong ^{[1
]}

Zhi, Chunyi ^{[2
]}

Dong, Chung-Li ^{[6
]}

Lee, Hyoyoung ^{[1
,4
,5
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem, Suwon 16419, South Korea

[2] City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China

[3] Sungkyunkwan Univ, Dept Nano Sci & Technol, SKKU Adv Inst Nanotechnol SAINT, Suwon 16419, South Korea

[4] Sungkyunkwan Univ, Creat Res Inst, Suwon 16419, South Korea

[5] Sungkyunkwan Univ, Inst Quantum Biophys, Suwon 16419, South Korea

[6] Tamkang Univ, Dept Phys, New Taipei, Taiwan

[7] Lincoln Agritech Ltd, POB 69 133, Christchurch 7640, New Zealand

来源：

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2024年 / 359卷

基金：

新加坡国家研究基金会;

关键词：

Chlorine evolution reaction; Surface tensile strain; Metal-support interactions; Chloralkali industry; Single atom catalyst; OXYGEN EVOLUTION; SELECTIVITY; ELECTROCATALYSIS; PERFORMANCE; PD;

D O I：

10.1016/j.apcatb.2024.124456

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Developing highly efficient and selective electrocatalysts for the chlorine evolution reaction (CER) in the chloralkali industry is of great importance. Here, we report the discovery of a new electrocatalyst for CER consisting of atomically dispersed Ru sites on surface tensile strained TiO2 (Ru-S-TiO2). The single-atom Ru species were stabilized on the strained TiO2 surface by strong metal-support interactions. The Ru-S-TiO2 is highly efficient, initiating CER at only 5 mV above the E-CER, and has shown excellent stability for over 100 hours. It exhibited >95 % CER selectivity even in acidic media with low Cl concentrations (0.2 M). Our results demonstrate that the strong metal-support interactions between the atomically dispersed Ru species and the strained TiO2 surface are crucial for the high catalytic activity, selectivity, and stability of Ru-S-TiO2 for CER. RuS-TiO2 holds great promise as a viable alternative to existing mixed metal oxides-based electrocatalysts for CER in the chloralkali industry.

引用

页数：11

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