文献类型：期刊文献

英文题名：Catalytic transfer hydrogenolysis of C-O bonds in lignin model compounds without arene hydrogenation

作者：Cui, Kai[1];Zhao, Xiuge[1];Peng, Qingpo[1];Gong, Honghui[1];Wei, Xinjia[1];Wang, Jiajia[1];Chen, Manyu[1];Hou, Zhenshan[1]

机构：[1]East China Univ Sci & Technol, Res Inst Ind Catalysis, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China

年份：2022

卷号：3

期号：1

起止页码：25

外文期刊名：GREEN CHEMICAL ENGINEERING

收录：EI(收录号：20224313012969);WOS:【ESCI(收录号:WOS:001075134000001)】；

基金：The authors thank for support from the National Natural Science Foundation of China (21773061, 21978095) and the Open Research Fund of Shanghai Key Laboratory of Green Chemistry and Chemical Processes.

语种：英文

外文关键词：C -O bond cleavage; Hydrogenolysis; Zirconium phosphate; Biomass conversion; Ni catalysts

摘要：The shortage of resources and the destruction of the environment have caused serious resource and environmental problems shared by all countries around the world. As a ubiquitous renewable resource, biomass has great prospects for replacing fossil energy and attracted attention from the society. The use of catalytic approach to transform biomass into high-value chemicals is an effective way to use biomass efficiently. In this work, Nisupported catalysts has been developed for the selective cleavage of C-O bonds in lignin model compounds with 2-propanol as the hydrogen source solvent. Among these catalysts, it was indicated that zirconium phosphate (ZrP)-supported Ni catalysts were highly efficient and recyclable for alkyl-aryl ether (alpha-O-4 and 13-O-4) cleavage in lignin model compounds. The further investigation demonstrated that the transfer hydrogenolysis of the C-O bond is highly selective, which afforded phenols and aromatics as dominant products without the products arising from hydrogenation of aromatic rings. Through a series of characterization of the catalyst, it was demonstrated that the medium strong acid sites of the ZrP support promoted the cleavage of alkyl-aryl ethers (alpha-O-4 and 13-O-4), and Bronsted acid sites favored for achieving high selectivity toward C-O bond cleavage. Additionally, Ni(0) sites on the ZrP catalysts were responsible for the catalytic transfer hydrogenolysis.