期刊
JOURNAL OF CO2 UTILIZATION
卷 66, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jcou.2022.102263
关键词
Bioinspired route; SnO2 nanoparticles; ElectrochemicalCO2 reduction; Formate formation
资金
- Science & Engineering Research Board (SERB), Department of Science and Technology (DST), Government of India [IMP/2018/000241]
This study focuses on the bioinspired synthesis of SnO2 nanoparticles using S. edule fruit. A mechanistic route for the synthesis of SnO2 nanoparticles has been proposed. The study shows that these nanoparticles can efficiently catalyze the electrochemical reduction of CO2 to formate under specific conditions.
The present work aims at the bioinspired synthesis of SnO2 NPs, labeled as SnO2(bio) NPs using S. edule fruit. A mechanistic route of synthesis of SnO2 NPs from its inorganic precursor has been proposed herewith. Carbon paper decorated SnO2(bio) NPs and its calcined counterpart SnO2(bio)-800 NPs (800 degrees C) were employed for electrochemical CO2 reduction. Both SnO2(bio) NPs and SnO2(bio)-800 NPs were active towards CO2 to formate (HCOO-) as the single product, in the liquid phase of 0.5 M KHCO3 aqueous electrolyte and the maximum faradaic efficiency reached to 75.6-84.0%, respectively for 1 h of the chronoamperometric test. The predominant crystalline (110) facet in SnO2(bio)-800 NPs might have caused a significant boost in faradaic efficiency for formate formation.
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