Jiaxin Liu , Pengcheng Xiu , Yafei Zhu , Kanghong Wang , Shanshan Tong , Yunpeng Ma , Haoquan Guo , Xiaoli Gu
{"title":"Catalytic hydrogenolysis of lignin over Ni/CeO2-Al2O3 catalysts with formic acid as hydrogen source","authors":"Jiaxin Liu , Pengcheng Xiu , Yafei Zhu , Kanghong Wang , Shanshan Tong , Yunpeng Ma , Haoquan Guo , Xiaoli Gu","doi":"10.1016/j.catcom.2024.106868","DOIUrl":null,"url":null,"abstract":"<div><p>Lignin is an aromatic polymer with prospects for producing high value-added chemicals. In this study, hydrogenolysis of alkaline lignin was carried out at 240 °C for 8 h in a hydrothermal kettle using Ni/xCeO<sub>2</sub>-yAl<sub>2</sub>O<sub>3</sub> as catalyst and formic acid as hydrogen source. Compared with Ni catalysts supported by single oxides, the results showed that Ni/xCeO<sub>2</sub>-yAl<sub>2</sub>O<sub>3</sub> composite-supported catalysts exhibited better catalytic depolymerization performance with higher bio-oil yields. Among them, Ni/1CeO<sub>2</sub>–3Al<sub>2</sub>O<sub>3</sub> exhibited the most outstanding catalytic activity, with a bio-oil yield of 52.77 wt% and a phenolic compound yield of 7.21 wt%.</p></div>","PeriodicalId":263,"journal":{"name":"Catalysis Communications","volume":"187 ","pages":"Article 106868"},"PeriodicalIF":3.4000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1566736724000281/pdfft?md5=b255cb7101a06c852ef4d0b9a06c7b7b&pid=1-s2.0-S1566736724000281-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1566736724000281","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Lignin is an aromatic polymer with prospects for producing high value-added chemicals. In this study, hydrogenolysis of alkaline lignin was carried out at 240 °C for 8 h in a hydrothermal kettle using Ni/xCeO2-yAl2O3 as catalyst and formic acid as hydrogen source. Compared with Ni catalysts supported by single oxides, the results showed that Ni/xCeO2-yAl2O3 composite-supported catalysts exhibited better catalytic depolymerization performance with higher bio-oil yields. Among them, Ni/1CeO2–3Al2O3 exhibited the most outstanding catalytic activity, with a bio-oil yield of 52.77 wt% and a phenolic compound yield of 7.21 wt%.
期刊介绍:
Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.