DOI: 10.1016/j.jcou.2017.12.004
Scopus记录号: 2-s2.0-85038806398
论文题名: Hydrotalcite/SBA15 composites for pre-combustion CO2 capture: CO2 adsorption characteristics
作者: Peng J. ; Iruretagoyena D. ; Chadwick D.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 24 起始页码: 73
结束页码: 80
语种: 英语
英文关键词: Adsorption
; CO2
; Hydrotalcite
; SBA-15
Scopus关键词: Adsorption
; Carbon
; Carbon capture
; Combustion
; Decomposition
; Precombustion
; Adsorption capacities
; Grafting method
; Hydrotalcite-like compound
; Hydrotalcites
; Mesoporous SBA-15
; Nanostructured carbons
; SBA-15
; Thermally stable
; Carbon dioxide
英文摘要: Hydrotalcite-like compounds (HT) show potential as CO2 adsorbent materials for pre-combustion CO2 capture applications, but require improvements in stability, adsorption capacity and kinetics. In this study, HT/SBA15 hybrids (with different Mg/Al ratios varying from 0.3 to 3) have been synthesised using a two-stage grafting method to coat a mesoporous SBA15 with hydrotalcite layers. The HT/SBA15 hybrids showed significant improvement in intrinsic CO2 uptake (per mass of HT), initial uptake rate, and multicycle stability compared to unsupported HT. Compared to previously reported nanostructured carbon supports (e.g. CNF, MWCNTs), the HT/SBA15 hybrids were found to be more thermally stable and exhibit comparable adsorption uptake and rates. In particular, the use of SBA15 as a support is shown to prevent the gradual loss in weight from thermal decomposition observed for HT/MWCNT or HT/GO composites over extended cycling. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111950
Appears in Collections: 气候减缓与适应
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作者单位: Department of Polymer Materials and Chemical Engineering, East China Jiaotong University, Nanchang, 330013, China; Department of Chemical Engineering, Imperial College London, South Kensington, London, SW7 2AZ, United Kingdom
Recommended Citation:
Peng J.,Iruretagoyena D.,Chadwick D.. Hydrotalcite/SBA15 composites for pre-combustion CO2 capture: CO2 adsorption characteristics[J]. Journal of CO2 Utilization,2018-01-01,24