Highly Durable Ruthenium Silicon Nanoalloy Robust for Electrocatalytic Reduction of Biomass-Derived Aldehydes

作者：Man Zhang, Nadaraj Sathishkumar, Wenhao Luo, Jinlu He, Juan Zhang, Yanheng Hao, Ke Li, Yuchen Wang, Bin Liu, Huixia Luo, Guoqing Guan, Qian He, Kai Yan · 发表于：ACS Catalysis · 年份：2025 · DOI：10.1021/acscatal.5c01181 · 被引用次数：10 · 研究领域：Electrocatalysts for Energy Conversion、Catalysis for Biomass Conversion、Catalysis and Hydrodesulfurization Studies

The electrocatalytic reduction (ECR) of biomass-derived feedstocks to value-added chemicals offers a promising solution for harnessing renewable electricity and biomass-based resources. Herein, we demonstrate the development of high-performing and stable silicon-based nanoalloy catalysts for the ECR of biomass-derived aldehydes. Ruthenium silicon (RuSi) nanoalloy electrocatalysts are prepared via a solvent-free microwave pyrolysis strategy (denoted as M-RuSi) achieve nearly perfect conversion of 5-hydroxymethylfurfural (HMF) with an unprecedented 2,5-dihydroxymethylfuran selectivity of 99% at −0.6 V RHE over 200 h durability. In situ attenuated total reflectance Fourier transform infrared spectroscopy and theoretical calculations reveal that H* active species with high coverage are generated on M-RuSi nanoalloy, and the rate-determining step is HMF adsorption (F-CHO* → F-CH 2 O*) for ECR, which effectively suppresses the competing hydrogen evolution reaction. This M-RuSi nanoalloy can robustly catalyze a series of biomass aldehydes, suggesting promising practical applications.