Effect of polyether amine canopy structure on carbon dioxide uptake of solvent-free nanofluids based on multiwalled carbon nanotubes

被引：49

作者：

Li, Peipei ^{[1
]}

Yang, Ruilu ^{[1
]}

Zheng, Yaping ^{[1
]}

Qu, Ping ^{[2
]}

Chen, Lixin ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Sch Nat & Appl Sci, Xian 710072, Peoples R China

[2] Shaanxi Appl Phys & Chem Res Inst, Xian 710072, Peoples R China

来源：

CARBON | 2015年 / 95卷

基金：

中国国家自然科学基金;

关键词：

CHEMICALLY REVERSIBLE ORGANOGELS; METAL-ORGANIC FRAMEWORK; LIQUID-LIKE BEHAVIOR; CO2; CAPTURE; MESOPOROUS SILICA; ALIPHATIC-AMINES; LATENT GELATORS; HYBRID; ADSORPTION; SORBENTS;

D O I：

10.1016/j.carbon.2015.08.060

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of specific solvent-free nanofluids with ionically tethered polyether amine terminated polymers were successfully prepared and evaluated based on multiwalled carbon nanotubes (MWCNTs). The newly synthesized sorbents exhibited enhanced carbon dioxide (CO2) capture capacities compared to their corresponding polyether amine and pristine MWCNTs. The effects of polyether amine canopy structure such as amine types, Molecular weight (Mw), Ethylene Oxide/Propylene Oxide (EO/PO), viscosity and melting point on CO2 capture capacities were investigated. It had been demonstrated that the sorbents impregnated with more unprotonated amine groups and higher Mw or EO/PO showed larger CO2 capture capacities and good stabilities over multiple adsorption-desorption cycles. Last but not least, we also demonstrated that the lower melting point and viscosity were beneficial for the CO2 uptake. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：408 / 418

页数：11

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