Ambient-pressure hydrogenation of CO2 into long-chain olefins
- 影响因子：14.919
- DOI码：10.1038/s41467-022-29971-5
- 发表刊物：Nat. Commun.
- 关键字：alternative energy, carbon dioxide, catalyst, chemical reaction, decentralization, optimization
- 摘要：The conversion of CO2 by renewable power-generated hydrogen is a promising approach to a sustainable production of long-chain olefins (C4+=) which are currently produced from petroleum resources. The decentralized small-scale electrolysis for hydrogen generation requires the operation of CO2 hydrogenation in ambient-pressure units to match the manufacturing scales and flexible on-demand production. Herein, we report a Cu-Fe catalyst which is operated under ambient pressure with comparable C4+= selectivity (66.9%) to that of the state-of-the-art catalysts (66.8%) optimized under high pressure (35 bar). The catalyst is composed of copper, iron oxides, and iron carbides. Iron oxides enable reverse-water-gas-shift to produce CO. The synergy of carbide path over iron carbides and CO insertion path over interfacial sites between copper and iron carbides leads to efficient C-C coupling into C4+=. This work contributes to the development of small-scale low-pressure devices for CO2 hydrogenation compatible with sustainable hydrogen production.
- 合写作者：Menglin Wang, Yanan Wang, Xinlong Ma, Lei Luo, Yue Chen, Kaiyuan Fan, Yang Pan
- 第一作者：Zhongling Li, Wenlong Wu
- 通讯作者：Hongliang Li, Jie Zeng
- 文献类型：SCI
- 卷号：13
- 期号：1
- 页面范围：2396
- 是否译文：否
- 发表时间：2022/05/03
- 发布期刊链接：https://www.nature.com/articles/s41467-022-29971-5
