Integrating Pore Interconnectivity and Adaptability in a Single Crystal
Hierarchical Zeolite for Liquid Alkylation
- Baoyu Liu,
- Jiajin Huang,
- Zhantu Liao,
- Chongzhi Zhu,
- Qiaoli Chen,
- Guan Sheng,
- Yihan Zhu,
- Yi Huang,
- Jinxiang Dong
Jiajin Huang
Guangdong University of Technology - University Town Campus
Author ProfileZhantu Liao
Guangdong University of Technology - University Town Campus
Author ProfileGuan Sheng
King Abdullah University of Science and Technology
Author ProfileJinxiang Dong
Guangdong University of Technology - University Town Campus
Author ProfileAbstract
Zeolite belongs to one of the most important families of solid acid
catalysts in chemical industries. It is however severely constrained by
the diffusion limitation for bulky molecules, the lack of
multi-functionality for sequential reactions and pore adaptability
towards specific adsorbates, due to the small micropore size and simple
aluminosilicate framework. Introducing mesopores into the zeolitic
framework towards hierarchical zeolites is prevailing, but usually
suffers from compromised crystallinity as well as insufficient
interconnectivity and openness of mesopores. Herein, a novel of
acid-redox co-functionalized single-crystalline zeolite with highly open
and interconnected mesopores is designed and fabricated. As a
proof-of-concept study, we integrate the solid acid and Fe-oxy redox
sites in a hierarchical MEL zeolite with well characterized
microporosity and mesoporosity. It exhibits superior activity and
stability towards the alkylation between mesitylene with benzyl alcohol,
arising from greatly facilitated intracrystalline molecular diffusion,
mitigated metal leaching and optimized adsorbate-pore wall interactions.30 Mar 2020Submitted to AIChE Journal 03 Apr 2020Submission Checks Completed
03 Apr 2020Assigned to Editor
13 Apr 2020Reviewer(s) Assigned
03 Sep 2020Editorial Decision: Revise Major
24 Sep 20201st Revision Received
08 Oct 2020Submission Checks Completed
08 Oct 2020Assigned to Editor
09 Oct 2020Reviewer(s) Assigned
17 Dec 2020Editorial Decision: Accept