Study of the Adsorption Properties of Mesoporous Silica Modified with Silver and Doped with Cerium or Terbium Using Inverse Gas Chromatography

被引：0
|
作者：
Tokranov, A. A. [1 ]
Tokranova, E. O. [1 ]
Ovchinnikova, D. V. [1 ]
Shafigulin, R. V. [1 ]
Bulanova, A. V. [1 ]
Kuznetsov, M. V. [2 ]
Safonov, A. V. [2 ]
Belousova, O. V. [3 ]
机构：
[1] Samara Univ, Samara 443086, Russia
[2] Emergency Control Minist EMERCOM, All Russia Res Inst Problems Civil Def & Emergenci, Moscow 121352, Russia
[3] Russian Acad Sci ISMAN, Merzhanov Inst Struct Macrokinet & Mat Sci, Chernogolovka 142432, Russia
来源：
INTERNATIONAL JOURNAL OF SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS | 2024年 / 33卷 / 02期
关键词：
mesoporous silica gels; doping with cerium or terbium; silver modification; adsorption thermodynamics; inverse gas chromatography; FUNCTIONALIZATION; CATALYST;
D O I：
10.3103/S1061386224700079
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Samples of mesoporous silica gel doped with cerium and terbium and modified with silver were synthesized using the template method. The textural and morphological characteristics of the samples were studied using scanning electron microscopy, inductively coupled plasma mass spectrometry, X-ray diffraction analysis, Fourier-transform infrared (FT-IR) spectroscopy, and nitrogen adsorption-desorption analysis. Moreover, thermodynamic characteristics of adsorption (differential heats and entropies) of test organic compounds were obtained using the inverse gas chromatography method. It was established that the nature of the dopant leads to changes in the textural characteristics of the samples and the heat of adsorption for hydrocarbons and compounds prone to various types of specific interactions.
引用
收藏
页码：138 / 148
页数：11
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