Sb-Doped CeO2 Nanospheres for Selective CO2 Electroreduction to Ethanol through Dynamic Redox Cycling of Surface Sb and Ce Sites DOI
Xiangyu Wang, Peng Wang, Chunhua Wu

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

It is challenging to construct non-Cu catalysts toward CO2 electroreduction (CO2ER) ethanol with high selectivity due the difficulty in adjusting active sites for controlling evolution of reaction intermediates. In this work, Sb-doped CeO2 nanospheres are constructed tune intermediates on selective generation. The primary one Sb site and two Ce undergo fluctuations oxidation states during CO2ER, which promotes *CO*OH formation conversion linear *COL further C–C coupling produce ethanol. optimal Sb5.0%-CeO2 can convert as a single liquid product over 50% broad potential range from −0.5 −1.0 V. Remarkably, it exhibits an Faradaic efficiency 70.5 ± 1.2% at −0.7 V stable operation 48 h. This work provides insights into catalyst design CO2ER selectivity.

Language: Английский

Sb-Doped CeO2 Nanospheres for Selective CO2 Electroreduction to Ethanol through Dynamic Redox Cycling of Surface Sb and Ce Sites DOI
Xiangyu Wang, Peng Wang, Chunhua Wu

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

It is challenging to construct non-Cu catalysts toward CO2 electroreduction (CO2ER) ethanol with high selectivity due the difficulty in adjusting active sites for controlling evolution of reaction intermediates. In this work, Sb-doped CeO2 nanospheres are constructed tune intermediates on selective generation. The primary one Sb site and two Ce undergo fluctuations oxidation states during CO2ER, which promotes *CO*OH formation conversion linear *COL further C–C coupling produce ethanol. optimal Sb5.0%-CeO2 can convert as a single liquid product over 50% broad potential range from −0.5 −1.0 V. Remarkably, it exhibits an Faradaic efficiency 70.5 ± 1.2% at −0.7 V stable operation 48 h. This work provides insights into catalyst design CO2ER selectivity.

Language: Английский

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