Super-ions of sodium cations with hydrated hydroxide anions: inorganic structure-directing agents in zeolite synthesis

被引：19

作者：

Asselman, Karel ^{[1
]}

Pellens, Nick ^{[1
]}

Radhakrishnan, Sambhu ^{[1
,2
]}

Chandran, C. Vinod ^{[1
,2
]}

Martens, Johan A. ^{[1
,2
]}

Taulelle, Francis ^{[1
,2
]}

Verstraelen, Toon ^{[3
]}

Hellstrom, Matti ^{[4
]}

Breynaert, Eric ^{[1
,2
]}

Kirschhock, Christine E. A. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, COK Kat, Celestijnenlaan 200F, B-3001 Heverlee, Belgium

[2] Katholieke Univ Leuven, NMRCoRe, Celestijnenlaan 200F, B-3001 Heverlee, Belgium

[3] Univ Ghent, Ctr Mol Modelling CMM, Technol Pk 903, B-9052 Ghent, Belgium

[4] Software Chem & Mat BV, NL-1081 HV Amsterdam, Netherlands

来源：

MATERIALS HORIZONS | 2021年 / 8卷 / 09期

基金：

欧洲研究理事会; 欧盟地平线“2020”;

关键词：

NMR-SPECTROSCOPY; MAS-NMR; X-RAY; TRANSFORMATION; MECHANISM; HYDROXYSODALITE; DIFFRACTION; WATER; H-1;

D O I：

10.1039/d1mh00733e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In inorganic zeolite formation, a direct correspondence between liquid state species in the synthesis and the supramolecular decoration of the pores in the as-made final zeolite has never been reported. In this paper, a direct link between the sodium speciation in the synthesis mixture and the pore structure and content of the final zeolite is demonstrated in the example of hydroxysodalite. Super-ions with 4 sodium cations bound by mono- and bihydrated hydroxide are identified as structure-directing agents for the formation of this zeolite. This documentation of inorganic solution species acting as a templating agent in zeolite formation opens new horizons for zeolite synthesis by design.

引用

页码：2576 / 2583

页数：8

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