In-situ Ru nanoparticles anchored on MgO-modified TS-1 for selective hydrodeoxygenation of lignin to alkylcyclohexanol
In-situ Ru nanoparticles anchored on MgO-modified TS-1 for selective hydrodeoxygenation of lignin to alkylcyclohexanol
研究概述
将原位生成Ru纳米颗粒锚定于MgO改性TS-1，串联木质素氢解与酚类加氢脱氧，制备烷基环己醇。单体总收率36.4%，其中烷基环己醇占55.8%、收率20.2%；高分散Ru0与适宜酸碱性协同提升催化效果，XAFS等用于结构分析。
谱图与表征信息
Fig. 3. (a) Survey XPS scan for HRO5-MgO20@TS-1. XPS spectra of (b) Mg 2p, (c) Si 2p, and (d) Ti 2p for HRO5-MgO20@TS-1. (e) XPS spectra of Ru 3d for HRO5@TS-1, HRO5-MgO20@TS-1, Ru-MgO20@TS-1, and Pre-Ru5/MgO20@TS-1. (f) Normalized Ru K-edge XANES spectra, (g) fitted valence states, and (h) FT- EXAFS spectra of Ru foil, RuO2, HRO5-MgO20@TS-1, and Ru-MgO20@TS-1. (i–k) Wavelet transforms for the k2-weighted Ru K-edge EXAFS signal of (i) Ru foil, (j) Ru-MgO20@TS-1, and (k) RuO2.