Stable nanoporous Sn/SnO2 composites for efficient electroreduction of CO2 to formate over wide potential range

Liu, S, Pang, F, Zhang, Q, Guo, R, Wang, Z, Wang, Y, Zhang, W and Ou, J 2018, 'Stable nanoporous Sn/SnO2 composites for efficient electroreduction of CO2 to formate over wide potential range', Applied Materials Today, vol. 13, pp. 135-143.


Document type: Journal Article
Collection: Journal Articles

Title Stable nanoporous Sn/SnO2 composites for efficient electroreduction of CO2 to formate over wide potential range
Author(s) Liu, S
Pang, F
Zhang, Q
Guo, R
Wang, Z
Wang, Y
Zhang, W
Ou, J
Year 2018
Journal name Applied Materials Today
Volume number 13
Start page 135
End page 143
Total pages 9
Publisher Elsevier BV
Abstract Seeking for an efficient and stable electrocatalyst in a wide potential range is vital for the electrocatalytic reduction of CO2 into high-value added liquid fuels. Herein, the nanoporous Sn/SnO2 (np-Sn/SnO2) composites with high mesoporosity are fabricated through a two-step dealloying strategy. At all the applied potentials, the as-prepared np-Sn/SnO2 composites show obviously higher Faradaic efficiency of formate relative to porous Sn structures. More importantly, the np-Sn/SnO2 composites exhibit high FE HCOO − of >70% at a wide potential range from −0.8 to −1.4V vs. RHE. In addition, np-Sn/SnO2 composites possess an excellent long-term stability over 58h at −0.8V vs. RHE. As compared to the porous Sn structures, the superiority of np-Sn/SnO2 composites toward electroreduction of CO2 to formate could be mainly attributed to their unique mesoporous structures with high-density grain boundaries and large surface area.
Subject Materials Engineering not elsewhere classified
Keyword(s) CO2 electroreduction
Dealloying
Formate
Nanoporous
Sn/SnO2 composites
DOI - identifier 10.1016/j.apmt.2018.08.014
Copyright notice © 2018 Elsevier Ltd. All rights reserved.
ISSN 2352-9407
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