CO₂ methanation reaction has attracted renewed interest since the power‐to‐gas (PtG) concept emerged as a promising alternative for CO₂ emission abatement using surplus renewable electricity. Although the reaction has been reported for more than a century, improvements in the catalytic system and reactor design remain challenging. Recently, hydrotalcite (HT) materials known for their facile synthesis and high performance are extensively used as precursors for supported catalysts in a wide range of reactions, including CO₂ hydrogenation to CH₄. Herein, a comprehensive overview on HT‐derived catalysts applied for CO₂ methanation is provided. More importantly, new reactor concepts are extensively investigated, such as honeycomb and microchannel reactors, to overcome issues related to the high exothermic nature of the reaction. The latest achievements with respect to structured reactors are also comprehensively reviewed and thoroughly discussed.

中文翻译：

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水滑石衍生的催化剂和结构化反应器上的二氧化碳甲烷化：综述

自从电力制气（PtG）概念作为使用多余的可再生电力减少CO ₂排放的有希望的替代方法出现以来，CO ₂甲烷化反应就引起了人们的新兴趣。尽管已经报道了超过一个世纪的反应，但是催化体系和反应器设计的改进仍然具有挑战性。近来，以其容易合成和高性能而闻名的水滑石（HT）材料被广泛用作包括CO ₂加氢成CH ₄在内的广泛反应中的负载型催化剂的前体。在此，对应用于CO _2的HT衍生催化剂进行了全面概述提供甲烷化。更重要的是，广泛研究了新的反应器概念，例如蜂窝和微通道反应器，以克服与反应的高放热性质有关的问题。还对结构化反应器的最新成就进行了全面回顾和深入讨论。