文献类型：期刊文献

英文题名：Bimetallic nickel-cobalt sulfide derived from lignin-MOFs hybrid as a high-efficiency heterogeneous catalyst for hydrogenolysis of lignin dimers

作者：Xue, Haonan[1] Xia, Haihong[2] Li, Hui[1] Ge, Fei[1] Xu, Wei[3] Yang, Xiaohui[2] Zhou, Minghao[1]

第一作者：Xue, Haonan

通信作者：Ge, F[1];Zhou, MH[1];Yang, XH[2]

机构：[1]Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[3]Nanjing Inst Technol, Sch Environm Engn, Nanjing 211167, Peoples R China

年份：2025

卷号：287

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20245117528764);Scopus(收录号：2-s2.0-85211709621);WOS:【SCI-EXPANDED(收录号:WOS:001411625000001)】；

基金：The project was supported by the foundation of the National Key Research and Development Program of China (No. 2022YFB4201803) and Qinglan Project of Jiangsu Province of China.

语种：英文

外文关键词：Lignin; MOFs; Sulfide; Hydrogenolysis

摘要：Lignin represents a significant source of aromatic hydrocarbons in the natural world. The production of high- value chemicals from lignin has the great potential to effectively address the issue of fossil energy scarcity. In this study, complex sulfides of nickel-cobalt bimetallic catalysts were prepared via hydrothermal synthesis and subsequently employed in the catalytic hydrogenolysis of C-O bonds present in lignin. A series of complex sulfides Ni3S2/Co3S4-CSn-x-T derived from lignin-MOF (n = 0.5, 1, 1.5 and 2; x = 2, 4 and 6; T = 400, 500, 600 and 700 degrees C), were prepared under different conditions and subsequently employed in the catalytic hydrogenolysis of lignin model compounds. The optimal catalyst Ni3S2/Co3S4-CS1-4-500 exhibited the highest conversion rate of benzyl phenyl ether (BPE) (about 97.3 %), and the yields of toluene and phenol produced were 49.5 % and 43.6 %, respectively with isopropanol as the reaction solvent and no external H2. The introduction of element sulfur in catalysts could effectively inhibit the further hydrogenation of generated aromatic chemicals. The catalysts were well characterized, and the results demonstrated that the catalysts exhibited high catalytic activity with an increased loading of active components. This study provided some novel findings for the construction of biomass-based catalysts and the production lignin-derived aromatic chemicals.