Cooperation of Different Active Sites to Promote CO Electroreduction to Multi-carbon Products at Ampere-Level.

Angew Chem Int Ed Engl

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.

Published: April 2024

Electroreduction of CO to C products provides a promising strategy for reaching the goal of carbon neutrality. However, achieving high selectivity of C products at high current density remains a challenge. In this work, we designed and prepared a multi-sites catalyst, in which Pd was atomically dispersed in Cu (Pd-Cu). It was found that the Pd-Cu catalyst had excellent performance for producing C products from CO electroreduction. The Faradaic efficiency (FE) of C products could be maintained at approximately 80.8 %, even at a high current density of 0.8 A cm for at least 20 hours. In addition, the FE of C products was above 70 % at 1.4 A cm. Experiments and density functional theory (DFT) calculations revealed that the catalyst had three distinct catalytic sites. These three active sites allowed for efficient conversion of CO, water dissociation, and CO conversion, ultimately leading to high yields of C products.

Download full-text PDF

Source
http://dx.doi.org/10.1002/anie.202400439DOI Listing

Publication Analysis

Top Keywords

active sites
8
high current
8
current density
8
products
7
cooperation active
4
sites promote
4
promote electroreduction
4
electroreduction multi-carbon
4
multi-carbon products
4
products ampere-level
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!