New article on zeolite catalysis in Angewandte Chemie
22 November 2019
An article has just been accepted in the prestigious Chemistry Journal Angewandte Chemie titled "Understanding the Role of Internal Diffusion Barriers in Pt/Beta Zeolite Catalyzed Isomerization of n-Heptane" authored by Zhongyuan Guo, Xin Li, Shen Hu, Guanghua Ye, Xinggui Zhou, Marc-Olivier Coppens. The published article was a collaboration between Professor Marc-Olivier Coppens (CNIE director), Dr Guanghua Ye who is now a CNIE Alumnus and Associate Professor in ECUST, Shanghai along with other members of his and Professor Xinggui Zhou's group.
The research shows the significant impact that surface barriers across interfaces in polycrystalline zeolites may cause on molecular transport, hereby drastically affecting reaction conversions and product selectivity in catalytic processes for which these zeolites are commonly employed. This is demonstrated for the practically important isomerization of n-heptane on Pt/Beta zeolite, where results for polycrystalline and mono-crystalline zeolite particles of the same size considerably differ.
In combination with our earlier work, this shows that both external and internal surface barriers should be considered when applying or designing hierarchically structured, zeolite-based catalysts.
Paper: Z. Guo, X. Li, S. Hu, G. Ye, X. Zhou and M. Coppens, "Understanding the Role of Internal Diffusion Barriers in Pt/Beta Zeolite Catalyzed Isomerization of n-Heptane", Angewandte Chemie International Edition, 2019. DOI: 10.1002/anie.201913660. [Link]