The increasingdemand of isobutene makes isobutane oxydehydrogenation an active research area recently. The existing issues of commercialized Pt- and CrOx-based catalysts are now making the development of oxydehydrogenation catalysts a hot topic. The market prospective of isobutene was introduced,and the current developing status of isobutane dehydrogenation to isobutene was summarized. The types,active species and research direction of catalysts for isobutane oxydehydrogenation to isobutene(including MoOx–,VOx–,In2O3–,Ni-based oxides catalysts and single-atom catalysts)which is largely reported in literature were overviewed and analyzed. We found that the methods for preparing metallic oxide catalyst were easy,but the isobutene yields,stability and some other aspects still need to be improved. By contrast,single-atom catalysts(SAC)which only contain one active metal atom,decrease the metal loading,and maximize the efficiency of metal utilization,so they have a broad research prospect. The preparation methods and practicability are the main focus of SAC in the future.%异丁烯市场的迅猛发展,促使异丁烷氧化脱氢制异丁烯技术得以重视,商业化的Pt基和CrOx基催化剂存在的不足,使得对新型脱氢催化剂的研究开发成为热点.本文简述了异丁烯市场及发展前景,概述了异丁烷氧化脱氢制异丁烯技术的发展现状,综述了目前文献广泛报道的异丁烷氧化脱氢制异丁烯催化剂的类型(包括MoOx基、VOx基、In2O3基、Ni基催化剂和单原子催化剂)、活性物种及研究方向,并分析了上述催化剂的优缺点.分析发现,金属氧化物催化剂制备方法传统易行,但产物烯烃收率和稳定性等方面仍待提高,与之相比,单原子催化剂只含有一种活性金属原子,降低了金属负载量的同时提高了其利用率,具有巨大的研究前景.制备方法和实际应用性是未来单原子催化剂的研究重点.
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