Journal
ENERGY TECHNOLOGY
Volume 5, Issue 6, Pages 861-863Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201600576
Keywords
Ag nanoparticles; catalyst support; CO2 conversion; electrochemistry; nanoparticles
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Funding
- Japanese Ministry of Education, Culture, Sports, Science and Technology
- Progress 100 project at Kyushu University
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Electrochemistry is a promising method to recycle CO2 into useful carbon feedstock and for storing intermittent renewable energy. To date, Au and Ag nanoparticles are the most active catalysts for electrochemical conversion of CO2 to CO. However, agglomeration reduces the activity and the high cost slows widespread commercialization. Suitable support materials are thus needed to improve catalyst utilization. We explore carbon foam (CF) as a catalyst support. Compared with carbon black or graphene nanoplatelets, CF has higher surface area, larger pores, and more defects, resulting in improved uniformity of Ag nanoparticle distribution as well as higher activity and efficiency for CO2 conversion to CO.
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