Atomistic simulations of water and organic templates occluded during the synthesis of zeolites

被引：22

作者：

Bushuev, Yuriy G. ^{[1
,2
]}

Sastre, German ^{[1
]}

机构：

[1] UPV CSIC, Inst Tecnol Quim, Valencia 46022, Spain

[2] Ivanovo State Univ Chem & Technol, Ivanovo, Russia

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2010年 / 129卷 / 1-2期

关键词：

Zeolites; ITH zeolite; Forcefield; Computer simulation; Water in zeolites; STRUCTURE-DIRECTING AGENTS; PURE SILICA POLYMORPH; ORTHORHOMBIC FRAMEWORK; INTERATOMIC POTENTIALS; PREFERENTIAL LOCATION; COMPUTER-SIMULATION; VIBRATIONAL-SPECTRA; FLUORIDE-ION; POLARIZATION; STABILITY;

D O I：

10.1016/j.micromeso.2009.08.031

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The amount and location of water trapped during the synthesis of pure silica ITH zeolite has been carefully predicted by atomistic simulations with the employment of a new forcefield. The presented forcefield can be used to model accurately the structural and thermodynamic behavior of water in (Si, Al) zeolites, and the presence of ions (organic cations and fluoride anions) can be included in the system. Finally, the heats of formation of silica polymorphs are reproduced with more accuracy than with previous forcefields, which makes this new forcefield very appropriate to model aspects related to the stability of zeolites. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：42 / 53

页数：12

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