摘要
本研究报道了一种通过大豆和钴盐热解制备的甲酸脱氢用Co_(2)P催化剂,制备过程简单且环境友好。催化过程中,催化剂上的含K固体碱可作为路易斯酸性位点促进HCOO^(-)中间体的吸附,而自掺杂的N可作为碱性位点促进H+的吸附。大豆生物质中的P可与钴盐结合并热解成Co_(2)P,该位点可裂解HCOO^(-)的H-C键。催化剂制备过程中当Co(NO_(3))_(2)·6H_(2)O/大豆的质量比为1:15时,所得Co_(2)P催化剂对甲酸脱氢反应的产气率可达237.47 mL/(g·h),并展现出良好的稳定性。本研究结果可为甲酸选择性产氢用非贵金属非均相催化剂的开发提供一定的借鉴基础。
Formic acid(FA)is a sustainable liquid organic hydrogen carrier and the catalyst for hydrogen production from FA has received significant attention.However,the development of efficient non-noble metal catalysts still remains challenges.In this work,we provide a technologically rather simple and environmental-friendly strategy to synthesize Co_(2)P catalyst for dehydrogenation of FA by pyrolyzing soybean powder and cobalt salt.The K-containing solid bases in catalyst could act as Lewis acid sites for the HCOO−intermediate adsorption while the self-doped N could act as Lewis base sites to enhance the H+adsorption.The P contained in soybean could combine with Co to form Co_(2)P for H−C bond cleavage of HCOO^(-).At a Co(NO_(3))_(2)·6H_(2)O/soybean mass ratio of 1∶15,the as prepared Co_(2)P catalyst demonstrated a gas production rate of 237.47 mL/(g·h)and a good stability.This study provides a novel strategy to develop non-noble metal heterogeneous catalysts for FA dehydrogenation.
作者
王碧溪
刘泽宇
吴亚北
杨言言
杨颂
王荀
叶子
董洪亮
朱峰
余焕焕
吕英英
余钟亮
WANG Bixi;LIU Zeyu;WU Yabei;YANG Yanyan;YANG Song;WANG Xun;YE Zi;DONG Hongliang;ZHU Feng;YU Huanhuan;LÜYingying;YU Zhongliang(School of Chemistry and Environmental Sciences,Shangrao Normal University,Shangrao 334001,China;College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan 030024,China;College of Safety and Emergency Management Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi Coking Coal Group Co.LTD,Taiyuan 030024,China;Center for High Pressure Science and Technology Advanced Research,Shanghai 201203,China)
出处
《燃料化学学报(中英文)》
EI
CAS
CSCD
北大核心
2024年第6期883-892,共10页
Journal of Fuel Chemistry and Technology
基金
supported by the National Natural Science Foundation of China(22169017,22366034)
Natural Science Foundation of Jiangxi Province(20224BAB203026)
the Fundamental Research Program of Shanxi Province(202103021223115)
the Science and Technology Project of Jiangxi Education Department(GJJ201709,GJJ2201823,GJJ2201824,GJJ2201830)
the Subsidy Project after R&D Investment of Shangrao City(SKB2021002,2023AB017,2023AB014,SKB2021017)。
关键词
甲酸
多相催化剂
生物质
脱氢反应
formic acid
heterogeneous catalyst
biomass
dehydrogenation