journal article·2023-11-10

Flowerlike Nanosheet-Based High-Entropy Oxides as Catalysts for Aerobic Oxidation of Benzyl Alcohol

Bingzhen Zhang, Jian Chen, Ying Li, Yahui Zhu, Yanping Yang, Sheng Liao, Weiming Xiao, Shuhua Wang, Pengfei Zhang, Yuan Shu, Shunli Shi, Chao Chen

ACS Applied Nano Materials· Volume 6· Issue 21
Publisher page

Abstract

Aerobic oxidation of benzyl alcohol (BAL) under ambient reaction conditions is a charming goal for the fabrication of high-value oxygenates. However, competent catalysts are presently lacking. Herein, we present a flower-like high entropy oxide (HEO) nanosheet with rich oxygen vacancies for the BAL oxidation by utilizing the high-entropy metal organic framework (HE-MOF) as a precursor. Collective characterizations indicate that the substantial O V and massive pores of HEO facilitate substrate activation, promote mass transfer, and enhance catalytic efficiency. Both experimental results and density functional theory (DFT) simulations clearly illustrate the promoting role of O V in the process for reactant activation, thus significantly contributing to the formation of active oxygen species and driving subsequent oxidation more feasible. This work shines light on structural microenvironmental regulation induced via oxygen-vacancy defect engineering to realize superior selective oxidation catalysis.
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Research context

OpenAlex topics: Catalytic Processes in Materials Science · Electrocatalysts for Energy Conversion · Catalysis and Oxidation Reactions

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

Affiliations

Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Jiangxi 330031, P. R. China

School of Power and Mechanical Engineering, The Institute of Technological Sciences, Wuhan University, Hubei 430072, P. R. China

State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China

Funding

Government of Inner Mongolia Autonomous Region · National Key Research and Development Program of China · National Natural Science Foundation of China · Natural Science Foundation of Jiangxi Province · Key Laboratory of Nanchang City · Ordos Plateau

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