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Title: Snowflake relocated Cu2O electrocatalyst on an Ag backbone template for the production of liquid C2+ chemicals from CO2

Journal Article · · Dalton Transactions
DOI: https://doi.org/10.1039/d4dt00199k · OSTI ID:2368824

In this study, we performed the CO2 reduction reaction (CO2RR) using a structural composite catalyst of cuprous oxide (Cu2O) and silver (Ag) that was simultaneously electrodeposited. While the underneath Ag electrodeposits maintained their spiky backbone structures even after the CO2RR, the Cu2O deposits were reduced to Cu(111) and relocated on the backbone template. Here, the structural changes in Cu2O to Cu increase the active area of the Cu–Ag interface, resulting in a remarkable production rate of 125.01 μmol h-1 of liquid C2+ chemicals via the stabilization of the C–C coupling of the key intermediate species of acetaldehyde. This study provides new insights into designing a bimetallic catalyst for producing sustainable C2+ products from CO2 without any selectivity towards the production of methane.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); National Research Foundation of Korea (NRF)
Grant/Contract Number:
SC0012704
OSTI ID:
2368824
Report Number(s):
BNL--225647-2024-JAAM
Journal Information:
Dalton Transactions, Journal Name: Dalton Transactions Journal Issue: 19 Vol. 53; ISSN 1477-9226
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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