Journal
JOURNAL OF ENERGY CHEMISTRY
Volume 22, Issue 1, Pages 136-144Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S2095-4956(13)60018-2
Keywords
carbon dioxide catalytic capture (CDCC); carbon nanotubes (CNTs); chemical vapor deposition integrated process (CVD-IP); solid-form carbon material; debating greenhouse gases (GHG) effects
Funding
- National 973 Program of Ministry of Sciences and Technologies of China [2011CB201202]
- National Natural Science Foundation of China [20776089]
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Through our newly-developed chemical vapor deposition integrated process (CVD-IP) using carbon dioxide (CO2) as the raw material and only carbon source introduced, CO2 could be catalytically activated and converted to a new solid-form product, i.e., carbon nanotubes (CO2-derived) at a quite high yield (the single-pass carbon yield in the solid-form carbon-product produced from CO2 catalytic capture and conversion was more than 30% at a single-pass carbon-base). For comparison, when only pure carbon dioxide was introduced using the conventional CVD method without integrated process, no solid-form carbon-material product could be formed. In the addition of saturated steam at room temperature in the feed for CVD, there were much more end-opening carbon nano-tubes produced, at a slightly higher carbon yield. These inspiring works opened a remarkable and alternative new approach for carbon dioxide catalytic capture to solid-form product, comparing with that of CO2 sequestration (CCS) or CO2 mineralization (solidification), etc. As a result, there was much les body volume and almost no greenhouse effect for this solid-form carbon-material than those of primitive carbon dioxide.
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