The effects of hydrogen on thermal desorption of oxygen surface complexes

被引：79

作者：

Calo, JM ^{[1
]}

CazorlaAmoros, D ^{[1
]}

LinaresSolano, A ^{[1
]}

RomanMartinez, MC ^{[1
]}

DeLecea, CSM ^{[1
]}

机构：

[1] BROWN UNIV,DIV ENGN,PROVIDENCE,RI 02912

来源：

CARBON | 1997年 / 35卷 / 04期

关键词：

activated carbon; resins; oxidation; chemisorption; surface properties; CARBON;

D O I：

10.1016/S0008-6223(96)00173-X

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：

Temperature programmed desorption/reduction techniques have been applied to an investigation of the interaction of hydrogen with oxygen surface complexes and reactive sites on the surface of a resin char during thermal desorption. It is shown that the presence of hydrogen has a number of significant effects on the evolution patterns of the oxides of carbon and water vapor. A number of conclusions regarding the influence of hydrogen on oxidized carbon surfaces are presented, based upon analyses of the resultant TPD/TPR spectra for these samples. These results suggest that the interaction of hydrogen with oxygen surface complexes during temperature programmed experiments can be a useful ''tool'' in probing the nature and origin of surface species. (C) 1997. Published by Elsevier Science Ltd.

引用

页码：543 / 554

页数：12

共 13 条

[1]

[Anonymous], 1986, Numerical Recipes

[2] CARBON-CARBON DIOXIDE REACTION - KINETICS AT LOW-PRESSURES AND HYDROGEN INHIBITION [J].