In situ synthesis of Fe-N-C catalysts from cellulose for hydrogenation of nitrobenzene to aniline

作     者：Hao Wang Xiaohao Liu Guangyue Xu Ziwei Guo Ying Zhang 王昊;刘小好;许光月;郭子薇;张颖

作者机构：Department of ChemistryUniversity of Science and Technology of ChinaHefei 230026AnhuiChina Dalian National Laboratory for Clean EnergyDalian 116023LiaoningChina 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2019年第40卷第10期

页      面：1557-1565页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China (51876200, 21572213) the DNL Cooperation Fund, CAS (DNL180301)~~ 

主　　题：Co-pyrolysis Iron Nitrogen-doped Carbon Hydrogenation 

摘      要：Owing to Fe being the most abundant and least expensive transition metal on the earth,the utilization of Fe-based catalysts for catalytic hydrogenation has attracted worldwide *** this work,a series of N-doped C supported Fe catalysts(Fe-N-C)were prepared by co-pyrolysis of cellulose and ferric chloride under ammonia *** methods such as elemental analysis,atomic absorption spectroscopy,nitrogen adsorption-desorption isotherms,transmission electron microscopy,high-resolution transmission electron microscopy,X-ray diffraction,and X-ray photoelectron spectroscopy were carried out to explore the physicochemical properties of the *** hydrogenation of nitrobenzene as a model reaction,the catalysts prepared at different pyrolysis temperatures displayed different ***-N-C-700 exhibited the best activity among these catalysts,with the yield of aniline being up to 98.0%under 5 MPa H2 at 120℃ after 12 *** with the results of catalyst characterization and comparative tests,the transformation of Fe species and the generation of N-doped C,especially graphitized N-doped C,in the catalyst may be the main factors affecting the activity.A kinetic study was carried out and the apparent activation energy was obtained as 31.53 kJ/*** stability of the catalyst was also tested and no significant decrease in the activity was observed after 5 runs.