Synthesis of mesoporous zeolite Ni-MFI with high nickel contents by using the ionic complex [(C4H9)4N]2+[Ni(EDTA)]2- as a template

被引：18
|
作者：
Li, Xiao [1 ]
Li, Baoshan [1 ]
Mao, Huihui [1 ]
Shah, Asma Tufail [1 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2009年 / 332卷 / 02期
关键词：
Ni-MFI; Mesoporous materials; Ionic complex; Molecular sieve; Synthesis; EXCHANGED ZSM-5; REDUCTION; CATALYSTS; NO;
D O I：
10.1016/j.jcis.2009.01.006
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ni-MFI zeolites with high percentage of Ni (5-15 wt%) were prepared by using an ionic complex [(C4H9)(4)N](2)(+)[Ni(EDTA)](2)(-) by one step synthesis. These molecular sieves were characterized using X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), Fourier-transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV-vis), differential scanning calorimeter (DSC) and nitrogen adsorption-desorption isotherms. The results showed that heteroatom Ni was successfully introduced into the MFI framework up to 15 wt%. Moreover, this Ni-MFI possessed regular and stable structure with high specific surface area and average pore diameter of 388-439 m(2) g(-1) and 2.566-3.828 nm, respectively, compared to MFI prepared by traditional methods. These samples also showed good thermal and hydrothermal stability. (c) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码：444 / 450
页数：7
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