{"title":"Boric acid modified MOF-derived Ni@C/Al2O3-xB catalysts boosting the hydrodeoxygenation of guaiacol and raw bio-oil","authors":"Shuai Wang, Tairui Xue, Yanxiu Liu, Feng Li, Yanguang Chen, Bolong Jiang, Hua Song","doi":"10.1016/j.jaap.2025.107025","DOIUrl":null,"url":null,"abstract":"<div><div>Catalytic hydrodeoxygenation (HDO) of lignin-derived phenolic compounds into valuable hydrocarbons is of great significance but remains a challenge. Herein, a series of B modified Ni@C/Al<sub>2</sub>O<sub>3</sub>-B catalysts were prepared via one-pot solvothermal method followed by direct pyrolysis of Ni-MOF-74/Al<sub>2</sub>O<sub>3</sub>-B under N<sub>2</sub> atmosphere. The effect of dopant B on structure and acidity of the prepared catalysts were studied by multitechniques. It is found the increase in B content increased the specific area and strengthened the acidity of the catalysts, thus contributing to the improved HDO activity. Ni@C/Al<sub>2</sub>O<sub>3</sub>-3B catalyst with a B content of 3 mmol exhibited the best HDO activity, guaiacol was completely converted with 91.7 % cyclohexane selectivity at 275 ℃, 3 MPa, 2 h. And anisole was completely converted with 94.5 % cyclohexane selectivity at 275 ℃, 2 MPa, 1 h. Ni@C/Al<sub>2</sub>O<sub>3</sub>-3B catalyst also catalyst displayed excellent HDO performance for real bio-oil. This work can provide technical guidance for designing highly active non-precious catalysts applied in HDO process of lignin into green fuel and value-added chemicals.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"187 ","pages":"Article 107025"},"PeriodicalIF":5.8000,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Analytical and Applied Pyrolysis","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0165237025000786","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Catalytic hydrodeoxygenation (HDO) of lignin-derived phenolic compounds into valuable hydrocarbons is of great significance but remains a challenge. Herein, a series of B modified Ni@C/Al2O3-B catalysts were prepared via one-pot solvothermal method followed by direct pyrolysis of Ni-MOF-74/Al2O3-B under N2 atmosphere. The effect of dopant B on structure and acidity of the prepared catalysts were studied by multitechniques. It is found the increase in B content increased the specific area and strengthened the acidity of the catalysts, thus contributing to the improved HDO activity. Ni@C/Al2O3-3B catalyst with a B content of 3 mmol exhibited the best HDO activity, guaiacol was completely converted with 91.7 % cyclohexane selectivity at 275 ℃, 3 MPa, 2 h. And anisole was completely converted with 94.5 % cyclohexane selectivity at 275 ℃, 2 MPa, 1 h. Ni@C/Al2O3-3B catalyst also catalyst displayed excellent HDO performance for real bio-oil. This work can provide technical guidance for designing highly active non-precious catalysts applied in HDO process of lignin into green fuel and value-added chemicals.
期刊介绍:
The Journal of Analytical and Applied Pyrolysis (JAAP) is devoted to the publication of papers dealing with innovative applications of pyrolysis processes, the characterization of products related to pyrolysis reactions, and investigations of reaction mechanism. To be considered by JAAP, a manuscript should present significant progress in these topics. The novelty must be satisfactorily argued in the cover letter. A manuscript with a cover letter to the editor not addressing the novelty is likely to be rejected without review.