THERMODYNAMIC STUDY OF HIGH-PRESSURE ADSORPTION OF METHANE ON ACTIVATED CARBONS - THE EFFECT OF OXIDATION ON PORE STRUCTURE AND ADSORPTION ENERGY HETEROGENEITY

被引：24

作者：

JAGIELLO, J

SANGHANI, P

BANDOSZ, TJ

SCHWARZ, JA

机构：

[1] SYRACUSE UNIV,DEPT CHEM ENGN & MAT SCI,SYRACUSE,NY 13244

[2] UNIV MIN & MET KRAKOW,INST ENERGOCHEM COAL & PHYSICOCHEM SORBENTS,PL-30059 KRAKOW,POLAND

来源：

CARBON | 1992年 / 30卷 / 03期

关键词：

HIGH PRESSURE ADSORPTION; ACTIVATED CARBONS; MICROSTRUCTURE; ADSORPTION ENERGY DISTRIBUTION;

D O I：

10.1016/0008-6223(92)90050-7

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 effects of oxidation of activated carbons are studied by means of high-pressure methane adsorption. Decreases in amounts adsorbed and adsorption enthalpies after oxidation are observed. Thermodynamic analysis of adsorption isotherms using the virial-type thermal equation of adsorption is presented. The calculated adsorption energy distributions are shifted to lower adsorption energies for oxidized carbons. The mean adsorption energies decrease, indicating that oxidized carbon surfaces have lower affinity for methane adsorption.

引用

页码：507 / 512

页数：6

共 33 条

[21] CHARACTERIZATION OF ENERGETIC AND STRUCTURAL HETEROGENEITIES OF ACTIVATED CARBONS [J].