Comprehensive investigation of CO2 adsorption on Mg-Al-CO3 LDH-derived mixed metal oxides

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 磁共振应用研究部

	Comprehensive investigation of CO2 adsorption on Mg-Al-CO3 LDH-derived mixed metal oxides
	Gao, Yanshan 1; Zhang, Zhang 1; Wu, Jingwen 1; Yi, Xianfeng 2; Zheng, Anmin 2; Umar, Ahmad 3,4; O'Hare, Dermot 5; Wang, Qiang 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2013
卷号	1 期号:41 页码:12782-12790
英文摘要	Layered double hydroxides (LDHs) have been intensively studied for high-temperature CO2 capture. However, big differences in the CO2 capture capacity, ranging from 0.28 to 0.6 mmol g(-1), have often been reported for the same Mg-Al-CO3 LDH. Furthermore, how the active Mg-O species that are responsible for CO2 adsorption are formed is still unclear. In this work, we have performed a comprehensive investigation on the CO2 adsorption characteristics of Mg-Al-CO3 LDH-derived mixed metal oxides. Based on these results we proposed the possible adsorption sites and the mechanisms for CO2 adsorption. Initially, the effects of synthesis method, Mg : Al ratio, pretreatment conditions, adsorption conditions, and thermal stability on the CO2 adsorption capacity were systematically studied. By carefully examining the structural changes during thermal treatment using X-ray diffraction and solid state NMR, we suggest that the active Mg-O species could be induced either by the substitution of Mg2+ by Al3+ in the periclase MgO lattice, or by the diffusion of Al3+ out of the octahedral brucite layers. This work not only suggests the optimal testing conditions for LDH-derived CO2 adsorbents, but also provides a clearer understanding of the CO2 adsorption sites and mechanisms on LDH-derived mixed oxides and sheds light on the synthesis and utilization of LDH-derived high-temperature CO2 adsorption materials.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]	LAYERED DOUBLE HYDROXIDES ; HYDROTALCITE-LIKE COMPOUNDS ; HIGH-TEMPERATURE ADSORPTION ; ENHANCED HYDROGEN-PRODUCTION ; CARBON-DIOXIDE ; PROMOTED HYDROTALCITE ; CATALYTIC-PROPERTIES ; CAPTURE CAPACITY ; SORPTION ; ADSORBENT
收录类别	SCI
语种	英语
WOS记录号	WOS:000325413000013
公开日期	2015-07-14
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/873]
专题	武汉物理与数学研究所_磁共振应用研究部
作者单位	1.Beijing Forestry Univ, Coll Environm Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 3.Najran Univ, Coll Arts & Sci, Dept Chem, Najran 11001, Saudi Arabia 4.Najran Univ, PCSED, Najran 11001, Saudi Arabia 5.Univ Oxford, Dept Chem, Chem Res Lab, Oxford OX1 3TA, England
推荐引用方式 GB/T 7714	Gao, Yanshan,Zhang, Zhang,Wu, Jingwen,et al. Comprehensive investigation of CO2 adsorption on Mg-Al-CO3 LDH-derived mixed metal oxides[J]. JOURNAL OF MATERIALS CHEMISTRY A,2013,1(41):12782-12790.
APA	Gao, Yanshan.,Zhang, Zhang.,Wu, Jingwen.,Yi, Xianfeng.,Zheng, Anmin.,...&Wang, Qiang.(2013).Comprehensive investigation of CO2 adsorption on Mg-Al-CO3 LDH-derived mixed metal oxides.JOURNAL OF MATERIALS CHEMISTRY A,1(41),12782-12790.
MLA	Gao, Yanshan,et al."Comprehensive investigation of CO2 adsorption on Mg-Al-CO3 LDH-derived mixed metal oxides".JOURNAL OF MATERIALS CHEMISTRY A 1.41(2013):12782-12790.