Remarkable carbon dioxide catalytic capture (CDCC) leading to solid-form carbon material via a new CVD integrated process (CVD-IP): An alternative route for CO2 sequestration |
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Authors: | Wei Chu Maofei Ran Xu Zhang Ning Wang Yufei Wang Heping Xie Xiusong Zhao |
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Institution: | 1. Key Laboratory Green Chemistry & Technology of Ministry of Education (MOE), College of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China;2. State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, Sichuan, China;3. SABIC Technology Center Riyadh, P. O. Box 42503, Riyadh, Kingdom of Saudi Arabia;4. Department of Chemical and Biomolecular Engineering, National University of Singapore, Engineering Drive 4, 117576, Singapore;5. University Queensland, School Chemical Engineering, Brisbane 4072, Australia |
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Abstract: | 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 less body volume and almost no greenhouse effect for this solid-form carbon-material than those of primitive carbon dioxide. |
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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 |
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