Oxygen harvesting from carbon dioxide: simultaneous epoxidation and CO formation,Chemical Science

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Oxygen harvesting from carbon dioxide: simultaneous epoxidation and CO formation
Chemical Science ( IF 7.6 ) Pub Date : 2021-09-13 , DOI: 10.1039/d1sc04209b
Han Xu _{1,

2} , Muhammad Shaban ₁ , Sui Wang _{1,

3} , Anas Alkayal ₄ , Dingxin Liu ₃ , Michael G Kong ₃ , Felix Plasser ₄ , Benjamin R Buckley ₄ , Felipe Iza _{1,

5}

Affiliation

Due to increasing concentrations in the atmosphere, carbon dioxide has, in recent times, been targeted for utilisation (Carbon Capture Utilisation and Storage, CCUS). In particular, the production of CO from CO₂ has been an area of intense interest, particularly since the CO can be utilized in Fischer–Tropsch synthesis. Herein we report that CO₂ can also be used as a source of atomic oxygen that is efficiently harvested and used as a waste-free terminal oxidant for the oxidation of alkenes to epoxides. Simultaneously, the process yields CO. Utilization of the atomic oxygen does not only generate a valuable product, but also prevents the recombination of O and CO, thus increasing the yield of CO for possible application in the synthesis of higher-order hydrocarbons.

中文翻译：

从二氧化碳中收集氧气：同时环氧化和 CO 形成

由于大气中的浓度不断增加，近年来，二氧化碳已成为利用的目标（碳捕获利用和储存，CCUS）。特别是，从 CO ₂生产 CO一直是一个备受关注的领域，特别是因为 CO 可用于费-托合成。在此我们报告，CO ₂也可以用作原子氧的来源，它可以被有效地收集并用作无废物的末端氧化剂，用于将烯烃氧化成环氧化物。同时，该过程产生 CO。利用原子氧不仅可以产生有价值的产品，而且可以防止 O 和 CO 重新结合，从而提高 CO 的产率，可能用于合成高级烃。

更新日期：2021-09-20

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