摘要
合成气经费托合成(Fischer-Tropsch synthesis,FTs)转化为燃料和高附加值化学品是解决煤炭等资源清洁利用问题的重要途径,是现代煤化工的重要组成部分,对于降低石油进口依赖度,保证国家能源战略安全具有重要意义。钴基催化剂因活性高、链增长活性强、CO_(2)选择性低、寿命长等而成为目前研究最为广泛的FTs催化剂之一。如何通过调控表界面性质来打破还原度和分散度的依赖关系,提高催化剂的反应活性以及一定碳链范围内的产物选择性依然是高效钴基FTs催化剂开发面临的重要挑战。本文分别从结构敏感性(尺寸和晶面效应)、金属-载体间相互作用和限域效应三个方面阐述钴基FTs催化剂表界面性质调控策略的最新研究进展,以期为钴基FTs催化剂微观结构设计及反应性能调控提供理论依据。
The conversion of synthesis gas into fuel and high value-added chemicals through the Fischer-Tropsch synthesis(FTs)process is a crucial way to solve the problem of clean utilization of resources such as coal,which has been an important part of the modern coal chemical industry in China.It can reduce the dependence on petroleum imports and ensure national energy strategy security.Cobalt-based catalysts have become one of the most widely studied Fischer-Tropsch synthesis catalysts due to their outstanding catalytic activity,high chain growth factor,low CO_(2)selectivity,and long life.How to adjust the surface and interface properties of the catalyst to break the dependence of reduction and dispersion,and improve the reaction activity and product selectivity within a certain carbon chain range is still a significant challenge for the development of high-performance cobalt-based Fischer-Tropsch synthesis catalysts.In this paper,the latest research progress in the regulation of the surface and interface properties of cobalt-based Fischer-Tropsch synthesis catalysts is reviewed from three aspects:structure sensitivity(size and crystal effect),metal-support interaction,and confinement effect,so as to provide a theoretical basis for the design of catalyst microstructure and regulation of reaction performance.
作者
杨林颜
郭宇鹏
李正甲
岑洁
姚楠
李小年
Linyan Yang;Yupeng Guo;Zhengjia Li;Jie Cen;Nan Yao;Xiaonian Li(College of Chemical Engineering,Institute of Industrial Catalysis,Zhejiang University of Technology,Hangzhou 310014,China)
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2022年第10期2254-2266,共13页
Progress in Chemistry
基金
国家自然科学基金项目(No.22108253)
国家重点研发计划项目(2017YFB0602500)资助。
关键词
费托合成
钴基催化剂
结构敏感性
金属-载体相互作用
限域效应
Fischer-Tropsch synthesis
cobalt-based catalysts
structure sensitivity
metal-support interaction
confinement effect
作者简介
通讯作者:李正甲,e-mail:lizhengjia@zjut.edu.cn;通讯作者:姚楠,e-mail:kenyao@zjut.edu.cn;通讯作者:李小年,e-mail:xnli@zjut.edu.cn。
