Water in porous carbons

被引:343
作者
Brennan, JK [1 ]
Bandosz, TJ
Thomson, KT
Gubbins, KE
机构
[1] N Carolina State Univ, Dept Chem Engn, Raleigh, NC 27695 USA
[2] CUNY City Coll, Dept Chem, New York, NY 10031 USA
[3] Purdue Univ, Sch Chem Engn, W Lafayette, IN 47907 USA
关键词
water; activated carbons; adsorption; molecular modeling; molecular simulation;
D O I
10.1016/S0927-7757(01)00644-6
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
We present an overview of progress in understanding the behavior of water in porous carbons at the molecular level. We survey experimental investigations, semi-empirical approaches, and simulation studies. Experimental work faces a number of challenges: the determination of the distribution of carbon microcrystal sizes, the densities and species of surface groups, the topological nature of the connected pore structure, and pore size distributions. The lack of experimental characterization, together with the uncertainty in the intermolecular potentials involved, has thwarted molecular simulation efforts thus far. A concerted approach that links experimental and simulation efforts appears promising in gaining a better understanding of the behavior of water in porous carbons. Experimental results could aid in the development of realistic carbon models and improve the intermolecular potentials used in the simulation studies. In a complementary fashion, molecular simulation could help improve characterization methods of both the carbon structure and the surface chemistry. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:539 / 568
页数:30
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