Catalytic non-oxidative dehydrogenation of light alkanes is one of the most promising routes for the production of value-added olefins because of high selectivity to the target alkenes and increased supply of natural and shale gas. In this review, we emphasize the recent advances in the development of metal-based catalysts for the direct dehydrogenation of light alkanes to olefins. Metal-based catalysts including Pt-, Pd-, Rh- and Ni-based catalysts, particularly Pt-based bimetallic catalysts, are summarized and exemplified. A detailed discussion of the structure–performance correlations of these catalysts is presented. We systematically discussed the geometric and electronic effects of the promoters on these metal-based catalysts. Moreover, we highlighted recent advanced strategies for improving the dehydrogenation performance and the stability of metal-based catalysts. In light of the existing contributions, a perspective was provided to evaluate some of the potential avenues into future research. We hope that this review will inspire the rational design of metal-based catalysts to realize efficient direct dehydrogenation of light alkanes for olefins production.

中文翻译：

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用于轻链烷烃非氧化脱氢为轻烯烃的金属基催化剂

轻质烷烃的催化非氧化脱氢是生产增值烯烃的最有希望的途径之一，因为对目标烯烃的选择性高，天然气和页岩气的供应增加。在这篇综述中，我们强调了用于轻链烷烃直接脱氢为烯烃的金属基催化剂的最新进展。总结并举例说明了包括Pt-，Pd-，Rh-和Ni-基催化剂的金属基催化剂，特别是Pt-基双金属催化剂。提出了对这些催化剂的结构-性能相关性的详细讨论。我们系统地讨论了助催化剂在这些金属基催化剂上的几何和电子效应。此外，我们重点介绍了用于改善脱氢性能和金属基催化剂稳定性的最新先进策略。鉴于现有的贡献，提供了一个角度来评估未来研究的一些潜在途径。我们希望这篇评论会启发金属基催化剂的合理设计，以实现轻质烷烃的高效直接脱氢以生产烯烃。