Catalyst technology development from macro-, micro- down to nano-scale--颗粒学报PARTICUOLOGY

Liu, W. (2005). Catalyst technology development from macro-, micro- down to nano-scale. China Particuology, 3(6), 383-394. https://doi.org/10.1016/S1672-2515(07)60219-X

Catalyst technology development from macro-, micro- down to nano-scale

Wei Liu ^*

Corning Incorporated, Science and Technology Division, Sullivan Park, Corning, NY 14831, USA

10.1016/S1672-2515(07)60219-X

Volume 3, Issue 6, December 2005, Pages 383-394

Received 19 October 2005, Accepted 27 November 2005, Available online 27 November 2007.

E-mail: weiliu2476@yahoo.com

Highlights

Abstract

Catalyst and catalytic process technology has been an ever-growing field that involves chemical engineering, chemistry, and material science. A number of excellent review articles and books have been published on the subject. In this work, the author reviews the evolution and development of catalyst products with multi-scale methodology. The catalyst technologies are classified into three levels, macro-scale (reactor size), mini- and micro-scale (catalyst unit), and nano-scale (catalyst intrinsic structures). Innovation at different scales requires different sets of expertise, method, and knowledge. Specific examples of significant impact to practical application are used to illustrate technology development at each scale. The multi-scale analysis enables clear delineation of technology components and their relationship for a catalyst product and catalytic process. Manipulation of catalyst structures at nano-scale to increase intrinsic activity and/or selectivity is considered of large potential for future catalyst product development. Recent research results on Cu-CeO₂ and Au-CeO₂ composite catalysts for air pollution control and hydrogen production are used to show how novel catalytic properties can be discovered by unique combination of different but common materials at the nano-scale.

Graphical abstract

Keywords

multi-scale; nano-scale; catalyst; composite; ceria; copper; gold

文章导读