AI Article Synopsis
- The iron complex, [Fe(PP)(MeCN)](BF4), effectively reduces CO to formate with a high Faradaic efficiency (FE) of about 97.3% in acetonitrile.
- When diethylamine is added as a cocatalyst, the system can also produce methanol with an FE of 68.5%, alongside formamide and formate as other products.
- The study indicates that the hydride complex [FeH(PP)](BF4) is the main active agent in the process, and that the presence of an amine allows for the formation of carbamate, which can further be converted into methanol.
Article Abstract
The iron complex of tetradentate tris[2-(diphenylphosphino) ethyl]phosphine (PP ), [Fe(PP )(MeCN) ](BF ) , was able to electrocatalytically reduce CO to formate with a Faradaic efficiency (FE) of approximately 97.3 % in acetonitrile. Upon addition of diethylamine as a cocatalyst, electrocatalytic reduction to methanol was achieved with an FE of 68.5 %, and other products were formamide and formate. A mechanistic study suggested that the [FeH(PP )](BF ) hydride complex was the active species in the electrocatalysis. Added amine as cocatalyst could react with CO to form carbamate, which could then be reduced to formamide and further to methanol. By contrast, free CO could only be reduced to formate as the end-product.
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| http://dx.doi.org/10.1002/cssc.201802929 | DOI Listing |
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