The highly selective hydrogenation of CO₂ into alcohols, including methanol and higher alcohols containing two or more carbons (C₂₊OH), remains greatly challenging due to the high thermodynamic stability of CO₂. We develop an efficient FeZn-based catalyst for methanol synthesis via CO₂ hydrogenation and, through crystal structure engineering, enable the direct selective synthesis of higher alcohols. To our knowledge, we discovered for the first time that ZnFe₂O₄ spinel catalysts can achieve methanol selectivity values up to 84.5% during CO₂ hydrogenation. Introducing the iron carbide (Fe₅C₂) phases to form the ZnFe₂O₄/Fe₅C₂ interface breaks the traditional Anderson-Schulz-Flory distribution and greatly boosts the C₂₊OH selectivity in oxygenates to 98.2% promoted by the facile migration of alkyl species to the interface and their efficient C–C coupling with CHO∗ species, resulting in an unprecedented yield of higher alcohols with three or more carbons (C₃₊OH) of 5.3% versus the current reported maximum C₃₊OH yield of ≤2.1%.

由于CO _{2的高热力学稳定性，将CO 2}高选择性加氢成醇，包括甲醇和含有两个或更多个碳(C ₂₊ OH)的高级醇，仍然具有很大的挑战性。我们开发了一种高效的FeZn基催化剂，用于通过CO ₂加氢合成甲醇，并通过晶体结构工程，能够直接选择性合成高级醇。据我们所知，我们首次发现ZnFe ₂ O _{4尖晶石催化剂在CO 2}加氢过程中可以实现高达84.5%的甲醇选择性值。引入碳化铁(Fe ₅ C ₂ )相形成ZnFe ₂ O ₄ /Fe ₅ C ₂界面打破了传统的Anderson-Schulz-Flory分布，并大大提高了含氧化合物中C ₂₊ OH的选择性至98.2%。烷基物质容易迁移到界面，并与 CHO* 物质进行有效的 C-C 偶联，从而使具有三个或更多碳 (C _{3+ OH) 的高级醇的产率达到前所未有的 5.3%（与目前报道的最大 C 3+}相比）OH收率≤2.1%。