CHEMISORPTION OF OXYGEN AND OF NITRIC-OXIDE ON CELLULOSIC CHARS

被引：35

作者：

DEGROOT, WF ^{[1
]}

OSTERHELD, TH ^{[1
]}

RICHARDS, GN ^{[1
]}

机构：

[1] UNIV MONTANA,WOOD CHEM LAB,MISSOULA,MT 59812

来源：

CARBON | 1991年 / 29卷 / 02期

关键词：

CHEMISORPTION; CHARS; OXYGEN; NITRIC OXIDE OXIDATION;

D O I：

10.1016/0008-6223(91)90069-U

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：

Cellulose chars have been subjected to chemisorption reactions in the temperature range 100-200-degrees-C in oxygen and nitric oxide (nitrous oxide did not chemisorb). The products of chemisorption reactions were analyzed by temperature-programmed desorption (TPD) using combined thermogravimetry and mass spectrometry. The results show that nitric oxide is much more reactive than oxygen in chemisorption reactions, although separately we have found that cellulose chars gasify at a higher rate in oxygen. The results of this study are discussed in terms of possible mechanisms of surface oxidation and desorption.

引用

页码：185 / 195

页数：11

共 13 条

[11] KINETICS OF REACTION OF CARBON WITH NITRIC-OXIDE AT HIGH-TEMPERATURES AND LOW-PRESSURES .1. TEMPERATURE-DEPENDENCE [J].