Synthesis and properties of a microporous carbon material as a catalyst support for fuel cells

被引：3

作者：

Barnakov, Ch. N. ^{[1
]}

Kozlov, A. P. ^{[1
]}

Romanenko, A. I. ^{[2
]}

Vasenin, N. T. ^{[3
]}

Anufrienko, V. F. ^{[3
]}

Ismagilov, Z. R. ^{[3
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Inst Carbon & Carbon Chem, Kemerovo 650099, Russia

[2] Russian Acad Sci, Siberian Branch, Inst Inorgan Chem, Novosibirsk 630090, Russia

[3] Russian Acad Sci, Siberian Branch, Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

KINETICS AND CATALYSIS | 2010年 / 51卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

Carbonization Temperature; Carbyne; Dimensional Conductivity; Graphene Fragment; Carbyne Chain;

D O I：

10.1134/S0023158410020217

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：

It is stated that one-dimensional conductivity in amorphous microporous carbon material (AMCM) samples is associated with the considerable imperfection of graphene fragments in the carbon material rather than the presence of unshared electrons. It is likely that the graphene fragments are formed upon the carbonization of a carbon precursor accompanied by the partial or complete removal of precursor heteroatoms. It is hypothesized that the presence of localized unpaired electrons, which give EPR spectra, is due to the formation of local defects in carbene fragments. Thus, the effects of the value of conductivity and the concentration of unpaired electrons on the power output of a fuel cell cannot be distinguished based on the experimental data with the use of an AMCM as a catalyst support. The interaction of localized paramagnetic centers with electron gas can be interpreted in terms of the C-S relaxation model.

引用

页码：312 / 317

页数：6