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

Amol R. Jadhav; Xinghui Liu; P. Silambarasan; Vinit Kanade; Yang Liu; Ta Thi Thuy Nga; Taehun Yang; My Tran Kim; Yeonsu Han; Taesung Kim; Xiaodong Shao; Chunyi Zhi; Chung-Li Dong; Hyoyoung Lee

doi:10.1016/j.apcatb.2024.124456

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

Amol R. Jadhav, Xinghui Liu, P. Silambarasan, Vinit Kanade, Yang Liu, Ta Thi Thuy Nga, Taehun Yang, My Tran Kim, Yeonsu Han, Taesung Kim, Xiaodong Shao, Chunyi Zhi, Chung-Li Dong, Hyoyoung Lee^*

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

13 Citations (Scopus)

Abstract

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. Ru-S-TiO₂ holds great promise as a viable alternative to existing mixed metal oxides-based electrocatalysts for CER in the chloralkali industry. © 2024 Elsevier B.V.

Original language	English
Article number	124456
Journal	Applied Catalysis B: Environment and Energy
Volume	359
Online published	30 Jul 2024
DOIs	https://doi.org/10.1016/j.apcatb.2024.124456
Publication status	Published - 15 Dec 2024

Research Keywords

Chloralkali industry
Chlorine evolution reaction
Metal-support interactions
Single atom catalyst
Surface tensile strain

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Jadhav, A. R., Liu, X., Silambarasan, P., Kanade, V., Liu, Y., Nga, T. T. T., Yang, T., Kim, M. T., Han, Y., Kim, T., Shao, X., Zhi, C., Dong, C.-L., & Lee, H. (2024). Stable and efficient chlorine evolution reaction with atomically dispersed Ru on surface tensile strained TiO₂. Applied Catalysis B: Environment and Energy, 359, Article 124456. https://doi.org/10.1016/j.apcatb.2024.124456

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title = "Stable and efficient chlorine evolution reaction with atomically dispersed Ru on surface tensile strained TiO2",

abstract = "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 ECER, 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. Ru-S-TiO2 holds great promise as a viable alternative to existing mixed metal oxides-based electrocatalysts for CER in the chloralkali industry. {\textcopyright} 2024 Elsevier B.V.",

keywords = "Chloralkali industry, Chlorine evolution reaction, Metal-support interactions, Single atom catalyst, Surface tensile strain",

author = "Jadhav, {Amol R.} and Xinghui Liu and P. Silambarasan and Vinit Kanade and Yang Liu and Nga, {Ta Thi Thuy} and Taehun Yang and Kim, {My Tran} and Yeonsu Han and Taesung Kim and Xiaodong Shao and Chunyi Zhi and Chung-Li Dong and Hyoyoung Lee",

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TY - JOUR

T1 - Stable and efficient chlorine evolution reaction with atomically dispersed Ru on surface tensile strained TiO2

AU - Jadhav, Amol R.

AU - Liu, Xinghui

AU - Silambarasan, P.

AU - Kanade, Vinit

AU - Liu, Yang

AU - Nga, Ta Thi Thuy

AU - Yang, Taehun

AU - Kim, My Tran

AU - Han, Yeonsu

AU - Kim, Taesung

AU - Shao, Xiaodong

AU - Zhi, Chunyi

AU - Dong, Chung-Li

AU - Lee, Hyoyoung

PY - 2024/12/15

Y1 - 2024/12/15

N2 - 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 ECER, 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. Ru-S-TiO2 holds great promise as a viable alternative to existing mixed metal oxides-based electrocatalysts for CER in the chloralkali industry. © 2024 Elsevier B.V.

AB - 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 ECER, 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. Ru-S-TiO2 holds great promise as a viable alternative to existing mixed metal oxides-based electrocatalysts for CER in the chloralkali industry. © 2024 Elsevier B.V.

KW - Chloralkali industry

KW - Chlorine evolution reaction

KW - Metal-support interactions

KW - Single atom catalyst

KW - Surface tensile strain

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DO - 10.1016/j.apcatb.2024.124456

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