Preparation and characterization of pitch-based nanoporous carbons for improving CO2 capture

被引：16

作者：

Lee, Seul-Yi ^{[1
]}

Yoo, Hye-Min ^{[1
]}

Park, Sang Wook ^{[2
]}

Park, Sang Hee ^{[2
]}

Oh, Young Se ^{[2
]}

Rhee, Kyong Yop ^{[3
]}

Park, Soo-Jin ^{[1
]}

机构：

[1] Inha Univ, Dept Chem, Inchon 402751, South Korea

[2] GS Caltex Corp, Taejon, South Korea

[3] Kyung Hee Univ, Coll Engn, Dept Mech Engn, Ind Liaison Res Inst, Yongin, South Korea

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2014年 / 215卷

关键词：

Activated carbons; CO2; capture; Micropore volume; Pitch precursor; UREA-FORMALDEHYDE RESIN; ACTIVATED CARBON; DIOXIDE ADSORPTION; POROUS CARBONS; GAS; SEPARATION; STORAGE; GRAPHITE;

D O I：

10.1016/j.jssc.2014.03.038

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Pitch is considered a promising low-cost carbon precursor. However, when pitch is pyrolyzed, it forms polycrystalline graphite, which is non-porous, and therefore, not useful for CO2 adsorption. In this work, pitch was chemically activated to obtain a large specific surface area and micropore volume. Varying weight ratios of KOH (i.e., 0, 1, 2, and 3) were used as the activating agent. The characteristics of the samples were investigated using scanning electron microscopy (SEM), N-2/77 K adsorption isotherms, and X-ray diffraction (XRD). The CO2 adsorption performance was studied by isothermal adsorption/desorption measurements. The results showed that an increase in specific surface areas and total pore volumes of pitch-based nanoporous carbons, resulted in an enhancement of CO2 adsorption capacity. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：201 / 205

页数：5

共 44 条

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