点击次数：
影响因子：60.1
DOI码：10.1038/s41560-022-01019-4
发表刊物：Nature Energy
摘要：Efficient hydrogen storage and release are essential for effective use of hydrogen as an energy carrier. In principle, formic acid could be used as a convenient hydrogen storage medium via reversible CO 2 hydrogenation. However, noble metal-based catalysts are currently needed to facilitate the (de)hydrogenation, and the CO 2 produced during hydrogen release is generally released, resulting in undesirable emissions. Here we report an α -amino acid-promoted system for reversible CO 2 hydrogenation to formic acid using a Mn-pincer complex as a homogeneous catalyst. We observe good stability and reusability of the catalyst and lysine as the amino acid at high productivities (CO 2 hydrogenation: total turnover number of 2,000,000; formic acid dehydrogenation: total turnover number of 600,000). Employing potassium lysinate, we achieve gt;80% H 2 evolution efficiency and gt;99.9% CO 2 retention in ten charge–discharge cycles, avoiding CO 2 re-loading steps between each cycle. This process was scaled up by a factor of 18 without obvious drop of the productivity.
合写作者：Peter Sponholz*；Henrik Junge*；Matthias Beller*
第一作者：Duo Wei；Rui Sang
论文类型：期刊论文
通讯作者：Peter Sponholz*；Henrik Junge*；Matthias Beller*
文献类型：期刊
卷号：7
期号：5
页面范围：438-447
是否译文：否
发表时间：2022-05-19
收录刊物：SCI
发布期刊链接：https://www.nature.com/articles/s41560-022-01019-4