低温催化甲烷直接转化为C_(2)增值化学品研究进展  

Research progress in low-temperature catalytic direct conversion of methane to C_(2) value-added chemicals

作　　者：张同欣 张航 王书航 赵思思 赵震 Tongxin Zhang;Hang Zhang;Shuhang Wang;Sisi Zhao;Zhen Zhao(Institute of Catalysis for Energy and Environment,College of Chemistry and Chemical Engineering,Shenyang Normal University,Shenyang 110034,China)

机构地区：[1]沈阳师范大学化学化工学院,能源与环境催化研究所,沈阳110034

出　　处：《中国科学：化学》2024年第3期353-369,共17页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金重大研究项目(92145301、91845201);国家自然科学基金青年科学基金(22102106、22109105);辽宁省“兴辽英才计划”项目(XLYC2203120)资助。

摘　　要：甲烷不仅是高质量的化石燃料,也是合成高附加值化学品的新材料.由于甲烷的惰性,其直接转化需要高活化能,并且通常需要苛刻的反应条件或强氧化剂.在温和条件下直接将甲烷转化为有价值的能源是一种有前途的技术,可减少直接甲烷转化中的热力学屏障,并避免过氧化和催化剂失活的常见问题,但目前仍然是一个巨大的挑战.本文综述了无氧反应体系和有氧反应体系在甲烷催化转化为C_2增值化学品的研究进展.从活性中心和反应机理方面对催化剂的构建进行了详细的阐述和讨论.最后,我们对这一领域面临的挑战的看法,并提出了潜在的解决方案.Methane,which is abundant and affordable,is not only a high-quality fossil fuel,but also a new material for synthesizing high-value chemicals.Due to its inertness,the direct conversion of methane requires high activation energy and usually requires harsh reaction conditions or strong oxidizing agents.Directly converting methane into valuable energy under mild conditions is a promising technique,which can reduce the thermodynamic barrier in the direct conversion of methane,and avoid the common problems of peroxides and catalyst deactivation,but it is still a huge challenge.In this review,the research progress of anaerobic reaction systems and aerobic reaction systems in the catalyzed conversion of methane to C_(2) value-added chemicals is reviewed.The construction of catalysts is elaborated and discussed in detail from the aspects of active centers and reaction mechanism.Finally,we take a look at the challenges facing this area and propose potential solutions.

关 键 词：甲烷转化 低温 C_(2)增值化学品 C–H键的活化 

分 类 号：TQ032.4[化学工程]