RETRACTED: Room-temperature hydrogenation of levulinic acid by uniform nano-TiO2 supported Ru catalysts (Retracted article. See vol. 463, pg. 150, 2019)

被引：9

作者：

Li, Guoqiang ^{[1
,2
]}

Yang, Huanhuan ^{[1
,2
]}

Cheng, Mei ^{[1
,2
]}

Hu, Wei ^{[1
,2
]}

Tian, Lihong ^{[1
,2
]}

Mao, Wuxiang ^{[3
]}

Nie, Renfeng ^{[1
,2
]}

机构：

[1] Hubei Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China

[2] Hubei Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Synth & Applicat Organ Funct Mol, Wuhan 430062, Hubei, Peoples R China

[3] Hubei Univ, Coll Life Sci, Hubei Collaborat Innovat Ctr Green Transformat Bi, Wuhan 430062, Hubei, Peoples R China

来源：

MOLECULAR CATALYSIS | 2018年 / 455卷

基金：

中国国家自然科学基金;

关键词：

TiO2; nanoparticles; Electron donation; Room-temperature hydrogenation; Biomass; Water; GAMMA-VALEROLACTONE; SELECTIVE HYDROGENATION; FORMIC-ACID; CARBON; BIOMASS; CONVERSION; TIO2; HYDRODEOXYGENATION; BIOFUELS; VANILLIN;

D O I：

10.1016/j.mcat.2018.05.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Uniform TiO2 nanoparticles (NPs) is synthesized by a facile hydrothermal approach and used as support for Ru NPs. It is found that HF amount has a considerable influence in the size and uniformity of TiO2 NPs, and the optimized Ru/TiO2-0.4 is highly efficient for fast room-temperature hydrogenation of levulinic acid (LA) to gamma-valerolactone (GVL) in water. For example, Ru/TiO2-0.4 Exhibits 5.1 times higher activity in comparison with commercial TiO2 supported Ru (Ru/TiO2-C), and affords 97.4% LA conversion and > 99% GLV selectivity at 30 degrees C and 1 MPa H-2 for 30 min. In particular, Ru/TiO2-0.4 can even reach 88.5% LA conversion at lower temperature to 10 degrees C. This catalyst is stable for recycle and also affords good conversion as well as high selectivity for hydrodeoxygenation (HDO) of biomass-derived vanillin, attributed to smaller sized TiO2 NPs, easier electron donation from TiO2 to Ru and higher reducibility of Ru species.

引用

页码：95 / 102

页数：8

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