Atomically dispersed NiOx cluster on high-index Pt facets boost ethanol electrooxidation through long-range synergistic sites

Yao Wang; Meng Zheng; Yunrui Li; Lidan Zhu; Haoran Li; Qishun Wang; Hui Zhao; Jiawei Zhang; Yuming Dong; Yongfa Zhu

Advanced Powder Materials (Dec 2024)

Atomically dispersed NiOx cluster on high-index Pt facets boost ethanol electrooxidation through long-range synergistic sites

Yao Wang,
Meng Zheng,
Yunrui Li,
Lidan Zhu,
Haoran Li,
Qishun Wang,
Hui Zhao,
Jiawei Zhang,
Yuming Dong,
Yongfa Zhu

Affiliations

Yao Wang: Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; Corresponding author.
Meng Zheng: College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
Yunrui Li: Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
Lidan Zhu: Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
Haoran Li: Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
Qishun Wang: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Hui Zhao: Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
Jiawei Zhang: Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; Corresponding author.
Yuming Dong: Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
Yongfa Zhu: Department of Chemistry, Tsinghua University, Beijing 100084, China; Corresponding author.

Journal volume & issue: Vol. 3, no. 6
p. 100244

Abstract

Read online

Constructing the desired long-range dual sites to enhance the C–C bond-cleavage and CO-tolerate ability during ethanol oxidation reaction is of importance for further applications. Herein, the concept of holding atomically dispersed NiOx cluster supported on Pt-based high-index facets (NiOx/Pt) is proposed to build O-bridged Pt–Ni dual sites. Strikingly, the obtained NiOx/Pt dual sites show 4.97 times specific activity higher than that of commercial Pt/C (0.35 mA cm−2), as well as outstanding CO-tolerance and durability. The advanced electrochemical in-situ characterizations reveal that the NiOx/Pt can accelerate rapid dehydroxylation and C–C bond-cleavage over the Pt–Ni dual sites. Theoretical calculations disclose that the atomically dispersed NiOx species can lower the adsorption/reaction energy barriers of intermediates. This tactic provides a promising methodology on regulating the surface synergistic sites via engineering atomically dispersed oxide site.

Published in Advanced Powder Materials

ISSN: 2772-834X (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/advanced-powder-materials/

About the journal

Abstract

Keywords