Novo Nordisk Foundation (NNF) CO2 Research Center, Department of Chemistry/Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, 8000, Aarhus C, Denmark.
Leibniz-Institut für Katalyse, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany.
Angew Chem Int Ed Engl. 2022 Nov 14;61(46):e202204008. doi: 10.1002/anie.202204008. Epub 2022 Oct 7.
Formaldehyde (HCHO) is a crucial C building block for daily-life commodities in a wide range of industrial processes. Industrial production of HCHO today is based on energy- and cost-intensive gas-phase catalytic oxidation of methanol, which calls for exploring other and more sustainable ways of carrying out this process. Utilization of carbon dioxide (CO ) as precursor presents a promising strategy to simultaneously mitigate the carbon footprint and alleviate environmental issues. This Minireview summarizes recent progress in CO -to-HCHO conversion using hydrogenation, hydroboration/hydrosilylation as well as photochemical, electrochemical, photoelectrochemical, and enzymatic approaches. The active species, reaction intermediates, and mechanistic pathways are discussed to deepen the understanding of HCHO selectivity issues. Finally, shortcomings and prospects of the various strategies for sustainable reduction of CO to HCHO are discussed.
甲醛（HCHO）是广泛的工业过程中日常生活用品的重要 C 构建块。目前 HCHO 的工业生产基于甲醇的能源和成本密集型气相催化氧化，这需要探索其他更可持续的方法来进行此过程。利用二氧化碳（CO ）作为前体是一种很有前途的策略，可以同时减少碳足迹并缓解环境问题。本文综述了使用氢化、氢硼化/硅氢化以及光化学、电化学、光电化学和酶促方法将 CO 转化为 HCHO 的最新进展。讨论了活性物种、反应中间体和反应机理，以加深对 HCHO 选择性问题的理解。最后，讨论了可持续还原 CO 为 HCHO 的各种策略的缺点和前景。
