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Dopant-tuned stabilization of intermediates promotes electrosynthesis of valuable C3 products
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Dopant-tuned stabilization of intermediates promotes electrosynthesis of valuable C3 products
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Journal Article
Dopant-tuned stabilization of intermediates promotes electrosynthesis of valuable C3 products
2019
Overview
The upgrading of CO
2
/CO feedstocks to higher-value chemicals via energy-efficient electrochemical processes enables carbon utilization and renewable energy storage. Substantial progress has been made to improve performance at the cathodic side; whereas less progress has been made on improving anodic electro-oxidation reactions to generate value. Here we report the efficient electroproduction of value-added multi-carbon dimethyl carbonate (DMC) from CO and methanol via oxidative carbonylation. We find that, compared to pure palladium controls, boron-doped palladium (Pd-B) tunes the binding strength of intermediates along this reaction pathway and favors DMC formation. We implement this doping strategy and report the selective electrosynthesis of DMC experimentally. We achieve a DMC Faradaic efficiency of 83 ± 5%, fully a 3x increase in performance compared to the corresponding pure Pd electrocatalyst.
The electro-oxidative synthesis of valued chemicals offers to enhance the overall efficiency and economic viability of renewable electrosynthesis systems. Here, the authors use dopant-tuned catalysts to promote the electrosynthesis of dimethyl carbonate from CO and methanol via oxidative carbonylation.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
