The valuable catalytic and adsorptive properties of heterogeneous catalysts and the challenging area of nanostructure materials provide ample reason for establishing a firm theoretical understanding of their structure and behaviour. Computer simulation studies can contribute significantly in achieving an understanding of structure property relationships by the synthesis of current understanding and data, and by their capacity in revealing critical conceptual issues whose resolution demands additional experimentation. In the present communication I emphasize on the activity of our group in the area of computer simulation. Our group activity involves generation of new codes, better compatibility to solve the problem as well as application of the available computation technique in solving the problems generated in industry and in academics. We are concentrating on basic research as well as application using integrated computational chemistry as a tool.

The understanding of valuable catalytic and adsorptive properties of heterogeneous catalysts at atomic and electronic levels is essential for the design of novel catalysts. Computer simulation studies can significantly contribute to provide a rational interpretation of the observed experimental results and suggest modification of new catalysts. Our recent work on the application of integrated computer simulation methods to investigate the structure and catalytic properties of solid surfaces including zeolites, transition metals and their oxides have been reviewed in this paper. We have emphasized the effectivity and applicability of integrated computer simulation system to solve the problems in a variety of targets of industrial and academic importance.