EFFECT OF PORE STRUCTURE OF ACTIVATED CARBON FIBERS ON HYDROGEN ADSORPTION

被引：0

作者：

Ding, R. G. ^{[1
]}

Yao, X. D. ^{[1
]}

Zhu, Z. H. ^{[1
]}

Lu, G. Q. ^{[1
]}

Yan, Z. F. ^{[2
]}

机构：

[1] Univ Queensland, ARC Ctr Excellence Funct Nanomat, St Lucia, Qld 4072, Australia

[2] Univ Petr, State Key Lab Heavy Oil Proc, Dongying 257061, Shandong, Peoples R China

来源：

CARBON NANOMATERIALS IN CLEAN ENERGY HYDROGEN SYSTEMS | 2008年

关键词：

activated carbon fibers; hydrogen adsorption; pore structure; ultramicropore; supermicropore;

D O I：

暂无

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：

The activated carbon fibers were air-oxidized and their textural properties were well characterized by N-2 and CO2 adsorption. The correlation of pore size distribution of raw and treated activated carbon fibers with hydrogen adsorption performance indicated that ultramicropores dominate the hydrogen adsorption at low pressure. However, hydrogen molecules are not only trapped in the ultramicropores, but also adsorbed in the supermicropores at 77 K and high pressure. The narrow ultramicropores represent the higher energy adsorption sites that can adsorb gas molecules at high temperature and very low pressure. CO2 adsorption is proven to be necessary to provide complementary characterization of narrowest pores.

引用

页码：233 / +

页数：2

共 5 条

[1] Hydrogen adsorption studies on single wall carbon nanotubes [J].

Ansón, A ;

Callejas, MA ;

Benito, AM ;

Maser, WK ;

Izquierdo, MT ;

Rubio, B ;

Jagiello, J ;

Thommes, M ;

Parra, JB ;

Martínez, MT .

CARBON, 2004, 42 (07) :1243-1248

[2] Hydrogen storage in activated carbons and activated carbon fibers [J].

de la Casa-Lillo, MA ;

Lamari-Darkrim, F ;

Cazorla-Amorós, D ;

Linares-Solano, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (42) :10930-10934

[3] Usefulness of CO2 adsorption at 273 K for the characterization of porous carbons [J].

Lozano-Castelló, D ;

Cazorla-Amorós, D ;

Linares-Solano, A .

CARBON, 2004, 42 (07) :1233-1242

[4] Physisorption of hydrogen on microporous carbon and carbon nanotubes [J].

Rzepka, M ;

Lamp, P ;

de la Casa-Lillo, MA .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (52) :10894-10898

[5] Hydrogen adsorption on functionalized nanoporous activated carbons [J].

Zhao, XB ;

Xiao, B ;

Fletcher, AJ ;

Thomas, KM .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (18) :8880-8888

← 1 →