Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 5, Issue 25, Pages 12822-12827Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta03606j
Keywords
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Funding
- National Natural Science Foundation of China [51325102, 21673162, 51674177]
- International Science & Technology Cooperation Program of China [2015DFA90750]
- Program for Creation Team of Hubei Province [2015CFA017]
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A one-step high-yield synthesis of well-developed hollow carbon spheres was achieved by an electrolytic conversion of CO2 in a CaCO3-containing LiCl-KCl melt at 450 degrees C. Manipulating the electrode potential induced the occurrence of a microbubble effect associated with the as-formed CO (intermediates of CO32- reduction) in ultrathin carbon sheets, thereby triggering the growth of hollow structures. The SEM results reveal good plasticity of the carbon sheets at elevated temperatures. The micron-sized hollow carbon spheres showed favorable capacitive properties, and can be used as catalyst supports as well.
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