Carbonaceous materials-supported polyethylenimine with high thermal conductivity: A promising adsorbent for CO2 capture

Bozhen Wu; Fa Qian Liu; Shu Wen Luo; Liu Qin Zhang; Fangxin Zou

doi:10.1016/j.compscitech.2021.108781

Carbonaceous materials-supported polyethylenimine with high thermal conductivity: A promising adsorbent for CO2 capture

Bozhen Wu, Fa Qian Liu, Shu Wen Luo, Liu Qin Zhang, Fangxin Zou

Research output: Journal article publication › Journal article › Academic research › peer-review

16 Citations (Scopus)

Abstract

A new three-dimensional (3-D) interconnected elastic scaffold with high thermal conductivity was prepared from hydroxylated graphene (HG) and hydroxylated carbon nanotubes (HCNTs). Then, polyethyleneimine (PEI) was uniformly covalently grafted to the surfaces of the scaffold, to give a HG-HCNTs-PEI nanocomposite as a superior CO₂ adsorbent. The resulting nanocomposites possess high amine loading (9.46 mmol N g⁻¹) and high adsorption capacity in simulated flue gas (up to 4.43 mmol CO₂ g⁻¹). Due to the excellent thermal conductivity (5.1 W/mK), the adsorbents exhibit superior cyclic stability even in harsh desorption temperature (135 °C), Thus, these carbonaceous materials-supported adsorbents make the CO₂ capture process practical and promising.

Original language	English
Article number	108781
Journal	Composites Science and Technology
Volume	208
DOIs	https://doi.org/10.1016/j.compscitech.2021.108781
Publication status	Published - 26 May 2021

Keywords

Carbonaceous materials
CO capture
Polyethylenimine
Thermal conductivity

ASJC Scopus subject areas

Ceramics and Composites
General Engineering

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10.1016/j.compscitech.2021.108781

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title = "Carbonaceous materials-supported polyethylenimine with high thermal conductivity: A promising adsorbent for CO2 capture",

abstract = "A new three-dimensional (3-D) interconnected elastic scaffold with high thermal conductivity was prepared from hydroxylated graphene (HG) and hydroxylated carbon nanotubes (HCNTs). Then, polyethyleneimine (PEI) was uniformly covalently grafted to the surfaces of the scaffold, to give a HG-HCNTs-PEI nanocomposite as a superior CO2 adsorbent. The resulting nanocomposites possess high amine loading (9.46 mmol N g−1) and high adsorption capacity in simulated flue gas (up to 4.43 mmol CO2 g−1). Due to the excellent thermal conductivity (5.1 W/mK), the adsorbents exhibit superior cyclic stability even in harsh desorption temperature (135 °C), Thus, these carbonaceous materials-supported adsorbents make the CO2 capture process practical and promising.",

keywords = "Carbonaceous materials, CO capture, Polyethylenimine, Thermal conductivity",

author = "Bozhen Wu and Liu, {Fa Qian} and Luo, {Shu Wen} and Zhang, {Liu Qin} and Fangxin Zou",

note = "Funding Information: F Liu acknowledges the support from the National Natural Science Foundation of China ( 51773106 and 52073311 ) and Guangdong Basic and Applied Basic Research Foundation ( 2020A1515011274 and 2021A1515012281 ). B. Wu acknowledges the support from the National Key R&D Program of China ( 2016YFE0133200 , 2017YFB0307503 ), and the National Natural Science Foundation of China ( 51873193 ). Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

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month = may,

day = "26",

doi = "10.1016/j.compscitech.2021.108781",

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TY - JOUR

T1 - Carbonaceous materials-supported polyethylenimine with high thermal conductivity: A promising adsorbent for CO2 capture

AU - Wu, Bozhen

AU - Liu, Fa Qian

AU - Luo, Shu Wen

AU - Zhang, Liu Qin

AU - Zou, Fangxin

N1 - Funding Information: F Liu acknowledges the support from the National Natural Science Foundation of China ( 51773106 and 52073311 ) and Guangdong Basic and Applied Basic Research Foundation ( 2020A1515011274 and 2021A1515012281 ). B. Wu acknowledges the support from the National Key R&D Program of China ( 2016YFE0133200 , 2017YFB0307503 ), and the National Natural Science Foundation of China ( 51873193 ). Publisher Copyright: © 2021 Elsevier Ltd

PY - 2021/5/26

Y1 - 2021/5/26

N2 - A new three-dimensional (3-D) interconnected elastic scaffold with high thermal conductivity was prepared from hydroxylated graphene (HG) and hydroxylated carbon nanotubes (HCNTs). Then, polyethyleneimine (PEI) was uniformly covalently grafted to the surfaces of the scaffold, to give a HG-HCNTs-PEI nanocomposite as a superior CO2 adsorbent. The resulting nanocomposites possess high amine loading (9.46 mmol N g−1) and high adsorption capacity in simulated flue gas (up to 4.43 mmol CO2 g−1). Due to the excellent thermal conductivity (5.1 W/mK), the adsorbents exhibit superior cyclic stability even in harsh desorption temperature (135 °C), Thus, these carbonaceous materials-supported adsorbents make the CO2 capture process practical and promising.

AB - A new three-dimensional (3-D) interconnected elastic scaffold with high thermal conductivity was prepared from hydroxylated graphene (HG) and hydroxylated carbon nanotubes (HCNTs). Then, polyethyleneimine (PEI) was uniformly covalently grafted to the surfaces of the scaffold, to give a HG-HCNTs-PEI nanocomposite as a superior CO2 adsorbent. The resulting nanocomposites possess high amine loading (9.46 mmol N g−1) and high adsorption capacity in simulated flue gas (up to 4.43 mmol CO2 g−1). Due to the excellent thermal conductivity (5.1 W/mK), the adsorbents exhibit superior cyclic stability even in harsh desorption temperature (135 °C), Thus, these carbonaceous materials-supported adsorbents make the CO2 capture process practical and promising.

KW - Carbonaceous materials

KW - CO capture

KW - Polyethylenimine

KW - Thermal conductivity

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U2 - 10.1016/j.compscitech.2021.108781

DO - 10.1016/j.compscitech.2021.108781

M3 - Journal article

AN - SCOPUS:85103375406

SN - 0266-3538

VL - 208

JO - Composites Science and Technology

JF - Composites Science and Technology

M1 - 108781

ER -

Carbonaceous materials-supported polyethylenimine with high thermal conductivity: A promising adsorbent for CO2 capture

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Keywords

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