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Updated: Sep 13, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Countering in situ reduction of SnO2 during electrochemical CO2 conversion via oxidative pulsing
Sven Arnouts1,2, Kevin Van Daele1, Nick Daems1
1Applied Electrochemistry and Catalysis (ELCAT), University of Antwerp 2610 Wilrijk Belgium Tom.Breugelmans@uantwerpen.be.
Abstract:
The application of periodic anodic pulses in CO2 electroreduction (p-eCO2R) offers a promising route to counteract the inevitable in situ reduction of metal oxide catalysts. This study demonstrates the first application of p-eCO2R to a catalyst composed solely of a tin (oxide) active phase, using a pomegranate-structured SnO2@C nanosphere. Periodic, prolonged anodic pulses (30 s) at 0.2 V vs. RHE improved faradaic efficiency towards formate after 6 hours, retaining 78 ± 2% versus 71 ± 6% under potentiostatic conditions, suggesting p-eCO2R can extend Sn-based catalyst lifetimes for more sustainable CO2 conversion.
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