Diffusion in Nanoporous Solids in the Focus of IUPAC – A Tribute to Jens Weitkamp

Abstract

In bidding farewell to Prof. Dr.-Ing. Jens Weitkamp, we remember his many activities and his beneficial influence on the development of science, notably in the various fields of chemical technology and engineering. These activities include his engagement in support of the development of techniques dedicated to improvement of our understanding of the complex phenomenon of mass transfer in nanoporous materials, as both an ingenious scientist and a brilliant organizer and gifted leader of scientific alliances. The present contribution provides a brief introduction to the many facets of research in this field, with particular recognition of the most recent developments and Prof. Weitkamp's contributions.

Douglas M. Ruthven: In Memoriam of a Great Scholar and a Caring Friend

“…Thanks to Shamsuzzaman Farooq (left in the top row), Editor in Chief of the Adsorption journal at that time, we had the opportunity to publish a collection of articles on the individual measurement methods and an introduction into diffusion theory in a special volume of the journal. This first step towards the final goal, namely the condensation of its contents towards a coherent treatise, including an introduction to the fundamentals of diffusion theory [82], has meanwhile been made [83][84][85].…”

Leipzig, Berlin and Hannover: Three Stations of a Beneficial Cooperation

“…It is scheduled to appear on the occasion of the 9th Diffusion Fundamentals Conference in September 2022 in Krakow. Also, our chapter on diffusion in nanoporous materials shall be extensively enlarged, taking account the current activities of an IUPAC task group “Diffusion in Nanoporous Solids” scheduled to “provide a first comprehensive set of guidelines for measurements and reporting of diffusion properties of chemical compounds in nanoporous materials serving for catalytic, mass separation and other relevant purposes.” 61, 62. As a first step in these activities, there has recently appeared a thematic issue of the Adsorption Journal with contributions dedicated to the various techniques of diffusion measurement and their potentials and weaknesses 63, 64.…”