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DOI10.1016/j.jhazmat.2019.04.049
Exfoliated Ni-Al LDH 2D nanosheets for intermediate temperature CO2 capture
Hanif, Aamir1,2; Sun, Mingzhe1,2; Shang, Shanshan1,2; Tian, Yuanmeng1; Yip, Alex C. K.3; Ok, Yong Sik4,5; Yu, Iris K. M.6; Tsang, Daniel C. W.6; Gu, Qinfen7; Shan, Jin1,2
发表日期2019
ISSN0304-3894
EISSN1873-3336
卷号374页码:365-371
英文摘要

CO2 capture is projected as one of the pragmatic approaches to deal with the global warming phenomenon. Adsorption-based CO2 capture is considered an economically attractive option to reduce CO2 emission. The success of the adsorption-based capture primarily relies on adsorbents and thus a variety of adsorbents have been investigated in the literature. We here report a high surface area (210.2 m 2 /g) exfoliated Ni-Al LDH nanoplatelet as a promising candidate for CO2 capture at an intermediate temperature of 200 degrees C applicable to integrated gasification combined cycle (IGCC) and sorption enhanced water gas shift (SEWGS) reactions. The materials were well characterized by PXRD, TGA, FTIR, TEM, ICP-OES, and N-2 adsorption surface area, and pore size distribution techniques. A unique nanoflower morphology comprising of exfoliated LDH platelets of ca. S layer thiclmess was obtained. The CO2 capture capacity (0.66 mmol/g) of the exfoliated Ni-Al LDH nanoplatelet is comparable to that of the widely reported Mg-Al LDH-derived mixed oxides and MgO-based adsorbents. Provided that Ni-Al and other transition metal LDH materials are known to exhibit superior catalytic properties for CO2 methanation, this work could pave the way for development of dual-functional materials for CO2 capture and conversion.


WOS研究方向Engineering ; Environmental Sciences & Ecology
来源期刊JOURNAL OF HAZARDOUS MATERIALS
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/100486
作者单位1.City Univ Hong Kong, Shenzhen Res Inst, Shenzhen Hitech Ind Pk, 8 Yuexing 1st Rd, Shenzhen, Peoples R China;
2.City Univ Hong Kong, Sch Energy & Environm, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China;
3.Univ Canterbury, Dept Chem & Proc Engn, Christchurch, New Zealand;
4.Korea Univ, OJERI, Korea Biochar Res Ctr, Seoul 02841, South Korea;
5.Korea Univ, Div Environm Sci & Ecol Engn, Seoul 02841, South Korea;
6.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China;
7.Australian Synchrotron ANSTO, 800 Blackburn Rd, Clayton, Vic 3168, Australia
推荐引用方式
GB/T 7714
Hanif, Aamir,Sun, Mingzhe,Shang, Shanshan,et al. Exfoliated Ni-Al LDH 2D nanosheets for intermediate temperature CO2 capture[J],2019,374:365-371.
APA Hanif, Aamir.,Sun, Mingzhe.,Shang, Shanshan.,Tian, Yuanmeng.,Yip, Alex C. K..,...&Shan, Jin.(2019).Exfoliated Ni-Al LDH 2D nanosheets for intermediate temperature CO2 capture.JOURNAL OF HAZARDOUS MATERIALS,374,365-371.
MLA Hanif, Aamir,et al."Exfoliated Ni-Al LDH 2D nanosheets for intermediate temperature CO2 capture".JOURNAL OF HAZARDOUS MATERIALS 374(2019):365-371.
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