Fabrication of bimetallic Cu–Zn adsorbents with high dispersion by using confined space for gas adsorptive separation
作者机构：State Key Laboratory of Materials-Oriented Chemical EngineeringJiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China
出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)
年 卷 期：2022年第16卷第11期
页 面：1623-1631页
核心收录：
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：We acknowledge the financial support of this work by the National Natural Science Foundation of China(Grant Nos.22125804 22078155 and21878149)
主 题：bimetallic adsorbents confined space mesoporous silica propene propane separation
摘 要：The number of active components and their dispersion degree are two key factors affecting the performance of ***,we report a simple but efficient strategy for dispersing active components by using a confined space,which is formed by mesoporous silica walls and templates in the as-prepared SBA-15(AS).Such a confined space does not exist in the conventional support,calcined SBA-15,which does not contain a *** Cu and Zn precursors were introduced to the confined space in the AS and were converted to CuO and ZnO during calcination,during which the template was also *** results show that up to 5 mmol·g^(–1) of CuO and ZnO can be well dispersed;however,severe aggregation of both oxides takes place in the sample derived from the calcined SBA-15 with the same *** space in the AS and the strong interactions caused by the abundant hydroxyl groups are responsible for the dispersion of CuO and *** bimetallic materials were employed for the adsorptive separation of propene and *** samples prepared from the as-prepared SBA-15 showed superior performance to their counterparts from the calcined SBA-15 in terms of both adsorption capacity of propene and selectivity for propene/propane.
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