Volume 64, Issue 10 e202420080
Communication

Organic-Free Synthesis of High-Silica Zeolite Y with Aluminophosphate as the Aluminum Carrier

Qingdi Zhao

Qingdi Zhao

State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering, Nanjing Tech University 30 South Puzhu Road, Nanjing 211816, China

These authors contributed equally to this work.

Search for more papers by this author
Jiejie Ling

Jiejie Ling

State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering, Nanjing Tech University 30 South Puzhu Road, Nanjing 211816, China

These authors contributed equally to this work.

Search for more papers by this author
Dr. Jilong Wang

Dr. Jilong Wang

State Key Laboratory of Petroleum Molecular and Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering, East China Normal University 3663 North Zhongshan Road, Shanghai 200062, China

These authors contributed equally to this work.

Search for more papers by this author
Yan Gao

Yan Gao

State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering, Nanjing Tech University 30 South Puzhu Road, Nanjing 211816, China

Search for more papers by this author
Hailang Liu

Hailang Liu

State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering, Nanjing Tech University 30 South Puzhu Road, Nanjing 211816, China

Search for more papers by this author
Zhenghan Zhang

Zhenghan Zhang

State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China

Search for more papers by this author
Dr. Jingang Jiang

Dr. Jingang Jiang

State Key Laboratory of Petroleum Molecular and Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering, East China Normal University 3663 North Zhongshan Road, Shanghai 200062, China

Search for more papers by this author
Prof. Akira Nakayama

Prof. Akira Nakayama

Department of Chemical System Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

Search for more papers by this author
Prof. Jian Li

Corresponding Author

Prof. Jian Li

State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China

Search for more papers by this author
Prof. Koki Muraoka

Corresponding Author

Prof. Koki Muraoka

Department of Chemical System Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

Search for more papers by this author
Prof. Peng Wu

Corresponding Author

Prof. Peng Wu

State Key Laboratory of Petroleum Molecular and Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering, East China Normal University 3663 North Zhongshan Road, Shanghai 200062, China

Search for more papers by this author
Prof. Le Xu

Corresponding Author

Prof. Le Xu

State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering, Nanjing Tech University 30 South Puzhu Road, Nanjing 211816, China

Suzhou Laboratory, Suzhou 210023, China

Search for more papers by this author
First published: 24 January 2025

Graphical Abstract

Aluminum Carrier for High-Silica Zeolite Synthesis. Inspired by the kinetical-controlled drug delivery, a unique approach based on the controlled aluminum-incorporation mechanism is proposed to synthesize the most siliceous zeolite Y under organic-free condition. The introduction of aluminophosphate as Al carrier regulates crystallization kinetics of zeolite Y, which exhibits an improved hydrothermal stability and catalytic performance in benchmark reaction.

Abstract

The wide application of zeolite Y in petrochemical industry is well-known as one of the milestones in zeolite chemistry and heterogeneous catalysis. However, the traditional organic-free synthesis typically produces (hydro)thermally unstable zeolite Y with Si/Al atomic ratio (SAR) less than 2.5. Inspired by drug delivery process in which active components are kinetically controlled released, we develop a unique approach based on the pre-synthesized aluminum carrier to prepare one of the most siliceous zeolite Y with SAR up to 3.44 without using organics. The crystalline or amorphous aluminophosphates serve as the ideal carrier for the controlled incorporation of Al into zeolite framework during zeolite Y crystallization. Experimental and theoretical results reveal that the partial introduction of aluminophosphate as Al source would rationally regulate the crystallization kinetics, facilitating the formation of high-silica zeolite Y with random Al distribution. This approach enhances the hydrothermal stability and catalytic performance of zeolite Y in benchmark reaction.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.