Gallium‐Based Eutectic Alloys as Liquid Electron Donors to Ruthenium Single‐Atom Catalysts for Selective Hydrogenation of Vanillin
Abstract
Abstract Tuning the catalytic pathways of atomically dispersed single‐atom catalysts (SAC) has emerged as an effective strategy to optimize their overall catalytic activity. Herein, we present Ru 1 @m‐tube, a hollow carbon nitride‐supported Ru SAC, coated with eutectic galinstan (GaInSn), as a model catalyst, we demonstrate a performance inversion in vanillin conversion. Vanillin, as a biomass‐derived compound with industrial relevance, presents challenges in catalytic hydrogenation, making it an ideal model reaction to test and compare the catalyst's selectivity and efficiency. The as‐obtained Ru 1 @m‐tube(GaInSn) achieved nearly 100% vanillin conversion within 5 h and exhibited an impressive 93.8% selectivity for vanillyl alcohol. Electron spillover from gallium‐based eutectic alloys to highly diluted ruthenium sites enhances the desorption of vanillyl alcohol, resulting in an exceptional performance shift between hydrogenation and hydrodeoxygenation. Our findings not only offer a novel approach for modulating SAC performance via liquid–metal interfaces but also expand the understanding of promoter screening for various challenging reactions.
Article Details
Authors (20)
Jia Song
Institute of Molecular Medicine (IMM), Renji Hospital, School of Medicine, College of Chemistry and Chemical Engineering
Jianuo Liu
The Dermatology Department of The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China Hefei Anhui 230001 China
Xiaorong Zhu
Xiaoming Mou
Analytical and Testing Center Qingdao University of Science and Technology Qingdao 266042 China
Handuo Zheng
School of Management University of Science and Technology of China Hefei 230026 China
Huang Zhou
The Dermatology Department of The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine
Wenyu Wang
Department of Pharmaceutics, School of Pharmacy
Yong Guan
National Synchrotron Radiation Laboratory
Jun Tang
The Dermatology Department of The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine
Yue Lin
Lirong Zheng
Tao Yao
National Synchrotron Radiation Laboratory, State Key Laboratory of Precision and Intelligent Chemistry, School of Nuclear Science and Technology
Juncai Dong
Beijing Synchrotron Radiation Facility, Institute of High Energy Physics
Shiqiang Wei
National Synchrotron Radiation Laboratory, State Key Laboratory of Precision and Intelligent Chemistry
Weixin Huang
Lin Gu
Jun Luo
Yafei Li
Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials Science
Yafei Zhao
Yuen Wu
The Dermatology Department of The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine