Understanding how the crystalline nature of Fe-promoted alumino-borate PKU-1 catalyst affects Glycerin ketalization: The systematic control of surface composition and acidity

Weilu Wang; Xiangke Zeng; Shan He; Haidong Zhang; Guangming Jiang; Yang He; Yunqi Liu; Fan Dong; Xianming Zhang; Steven L. Suib

doi:10.1016/j.apcata.2022.118945

Understanding how the crystalline nature of Fe-promoted alumino-borate PKU-1 catalyst affects Glycerin ketalization: The systematic control of surface composition and acidity

Weilu Wang, Xiangke Zeng, Shan He, Haidong Zhang, Guangming Jiang, Yang He, Yunqi Liu, Fan Dong, Xianming Zhang, Steven L. Suib

Surface Chemistry & Catalysis Group

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A series of Fe-doped alumino-borate catalysts (18 % Fe-PKU-1) with a range of crystalline qualities has been obtained by varying synthesis conditions. Based on Angle-resolved X-ray Photoelectron Spectroscopy, pyridine adsorption infrared spectroscopy, and potentiometric titration, crystalline quality is correlated as volcano trends with the surface composition and electronic structure of Fe-PKU-1, especially for the boron species. Through the systematic change of synthesized conditions, the catalyst with the appropriate crystalline quality shows the highest surface compositions of boron and oxygen vacancies. This leads to strong surface Lewis acidity and results in the high catalytic performance of glycerin ketalization, 97 % conversion and 99 % selectivity in DL-1,2-Isopropylideneglycerol (Solketal).

Original language	English
Article number	118945
Journal	Applied Catalysis A: General
Volume	649
DOIs	https://doi.org/10.1016/j.apcata.2022.118945
State	Published - Jan 5 2023

Funding

This work was financially supported by the National Nature Science Foundation of China ( 51678095 ), Nature Science Foundation Project of Chongqing (Grants nos. cstc2021jcyj-msxmX0628 ), the Scientific and Technological Research Program of Chongqing Municipal Education Commission (Grants nos. KJQN20200823 and KJZD-K201900802 ), and Research project of Chongqing Technology and Business University (Grants nos. 1956058 and 2152018 ).

Funders	Funder number
Nature Science Foundation Project of Chongqing	cstc2021jcyj-msxmX0628
National Natural Science Foundation of China	51678095
Chongqing Technology and Business University	1956058, 2152018
Chongqing Municipal Education Commission	KJQN20200823, KJZD-K201900802

Keywords

Alumino-borates
Crystalline quality
Glycerin recycling
Solid Lewis-acid
Surface composition

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10.1016/j.apcata.2022.118945

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Wang, W., Zeng, X., He, S., Zhang, H., Jiang, G., He, Y., Liu, Y., Dong, F., Zhang, X., & Suib, S. L. (2023). Understanding how the crystalline nature of Fe-promoted alumino-borate PKU-1 catalyst affects Glycerin ketalization: The systematic control of surface composition and acidity. Applied Catalysis A: General, 649, Article 118945. https://doi.org/10.1016/j.apcata.2022.118945

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title = "Understanding how the crystalline nature of Fe-promoted alumino-borate PKU-1 catalyst affects Glycerin ketalization: The systematic control of surface composition and acidity",

abstract = "A series of Fe-doped alumino-borate catalysts (18 % Fe-PKU-1) with a range of crystalline qualities has been obtained by varying synthesis conditions. Based on Angle-resolved X-ray Photoelectron Spectroscopy, pyridine adsorption infrared spectroscopy, and potentiometric titration, crystalline quality is correlated as volcano trends with the surface composition and electronic structure of Fe-PKU-1, especially for the boron species. Through the systematic change of synthesized conditions, the catalyst with the appropriate crystalline quality shows the highest surface compositions of boron and oxygen vacancies. This leads to strong surface Lewis acidity and results in the high catalytic performance of glycerin ketalization, 97 % conversion and 99 % selectivity in DL-1,2-Isopropylideneglycerol (Solketal).",

keywords = "Alumino-borates, Crystalline quality, Glycerin recycling, Solid Lewis-acid, Surface composition",

author = "Weilu Wang and Xiangke Zeng and Shan He and Haidong Zhang and Guangming Jiang and Yang He and Yunqi Liu and Fan Dong and Xianming Zhang and Suib, {Steven L.}",

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AU - Wang, Weilu

AU - Zeng, Xiangke

AU - He, Shan

AU - Zhang, Haidong

AU - Jiang, Guangming

AU - He, Yang

AU - Liu, Yunqi

AU - Dong, Fan

AU - Zhang, Xianming

AU - Suib, Steven L.

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AB - A series of Fe-doped alumino-borate catalysts (18 % Fe-PKU-1) with a range of crystalline qualities has been obtained by varying synthesis conditions. Based on Angle-resolved X-ray Photoelectron Spectroscopy, pyridine adsorption infrared spectroscopy, and potentiometric titration, crystalline quality is correlated as volcano trends with the surface composition and electronic structure of Fe-PKU-1, especially for the boron species. Through the systematic change of synthesized conditions, the catalyst with the appropriate crystalline quality shows the highest surface compositions of boron and oxygen vacancies. This leads to strong surface Lewis acidity and results in the high catalytic performance of glycerin ketalization, 97 % conversion and 99 % selectivity in DL-1,2-Isopropylideneglycerol (Solketal).

KW - Alumino-borates

KW - Crystalline quality

KW - Glycerin recycling

KW - Solid Lewis-acid

KW - Surface composition

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VL - 649

JO - Applied Catalysis A: General

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Understanding how the crystalline nature of Fe-promoted alumino-borate PKU-1 catalyst affects Glycerin ketalization: The systematic control of surface composition and acidity

Abstract

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Keywords

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