journal article·2023-10Open access

Oxygen‐Saturated Strong Metal‐Support Interactions Triggered by Water on Titania Supported Catalysts

Hai Wang, Xue Dong, Yu Hui, Yiming Niu, Bingsen Zhang, Lujie Liu, Ji Cao, Mizuho Yabushita, Yoshinao Nakagawa, Keiichi Tomishige, Yucai Qin, Lijuan Song, Jianping Xiao, Liang Wang, Feng‐Shou Xiao

Advanced Functional Materials· Volume 33· Issue 42

Abstract

Abstract Strong metal‐support interaction (SMSI) greatly improves the performances of various supported metal nanoparticle catalysts. Classical SMSI relies on the oxide species with substoichiometric oxygen concentration, which prefers to retreat off in humid and oxidative atmospheres. A SMSI is reported with oxygen‐saturated overlayers on Au/TiO2 catalyst achieved by steaming treatment, an opposite condition to the classical SMSI formation. Through a combination of experimental and theoretical methods, this study demonstrates that the strong interactions between the TiOxHy (x≥2) species and Au surface cause the support migration to encapsulate Au nanoparticles. The oxygen‐saturated oxide overlayers are stable in oxidative, reductive, and humid atmospheres, providing great vitality to stabilize metal nanoparticle catalysts under varied and complex reaction conditions to outperform the classical SMSI.
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Research context

OpenAlex topics: Catalytic Processes in Materials Science · Nanomaterials for catalytic reactions · Electrocatalysts for Energy Conversion

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China

Key Laboratory of Petrochemical Catalytic Science and Technology Liaoning Petrochemical University Fushun 113001 China

Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China

Department of Applied Chemistry, School of Engineering Tohoku University 6‐6‐07 Aoba, Aramaki Aoba‐ku Sendai 980–8579 Japan

University of Chinese Academy of Sciences Beijing 100049 China

Funding

National Basic Research Program of China · National Natural Science Foundation of China · China Postdoctoral Science Foundation

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