文献类型：期刊文献

英文题名：Amine-functionalized low-cost industrial grade multi-walled carbon nanotubes for the capture of carbon dioxide

作者：Liu, Qing[1];Shi, Yao[1];Zheng, Shudong[1];Ning, Liqi[2];Ye, Qing[3];Tao, Mengna[1];He, Yi[1]

机构：[1]Zhejiang Univ, Dept Chem & Biol Engn, Key Lab Biomass Chem Engn, Minist Educ, Hangzhou 310027, Zhejiang, Peoples R China;[2]Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA;[3]Shaoxing Univ, Yuanpei Coll, Dept Life Sci, Shaoxing 312000, Zhejiang, Peoples R China

年份：2014

卷号：23

期号：1

起止页码：111

外文期刊名：JOURNAL OF ENERGY CHEMISTRY

收录：SCI-EXPANDED(收录号：WOS:000331667500016)、、EI(收录号：20140717308091)、Scopus(收录号：2-s2.0-84893315699)、WOS

基金：We would like to thank the Zhejiang Provincial Natural Science Foundation of China (Grant No. LZ12E08002) and the Fundamental Research Funds for the Central Universities for financial support.

语种：英文

外文关键词：CO2 adsorption; multi-walled carbon nanotubes (MWCNTs); tetraethylenepentamine (TEPA); heat of adsorption; amine modification

外文摘要：Industrial grade multi-walled carbon nanotubes (IG-MWCNTs) are a low-cost substitute for commercially purified multi-walled carbon nanotubes (P-MWCNTs). In this work, IG-MWCNTs were functionalized with tetraethylenepentamine (TEPA) for CO2 capture. The TEPA impregnated IG-MWCNTs were characterized with various experimental methods including N-2 adsorption/desorption isotherms, elemental analysis, X-ray diffraction, Fourier transform infrared spectroscopy and thermogravimetric analysis. Both the adsorption isotherms of IG-MWCNTs-n and the isosteric heats of different adsorption capacities were obtained from experiments. TEPA impregnated IG-MWCNTs were also shown to have high CO2 adsorption capacity comparable to that of TEPA impregnated P-MWCNTs. The adsorption capacity of IG-MWCNTs based adsorbents was in the range of 2.145 to 3.088 mmol/g, depending on adsorption temperatures. Having the advantages of low-cost and high adsorption capacity, TEPA impregnated IG-MWCNTs seem to be a promising adsorbent for CO2 capture from flue gas.