کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
72257 49014 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Enhancement in CO2 adsorption capacity and selectivity in the chalcogenide aerogel CuSb2S4 by post-synthetic modification with LiCl
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Enhancement in CO2 adsorption capacity and selectivity in the chalcogenide aerogel CuSb2S4 by post-synthetic modification with LiCl
چکیده انگلیسی


• New ternary metal chalcogel CuSb2S4 have been synthesized and characterized.
• Post synthetic modifications on CuSb2S4 chacogel have been performed.
• They are predominantly mesoporous materials.
• They show highly selective adsorption for CO2.

The new chalcogel CuSb2S4 was obtained by reacting Cu(OAc)2·H2O with KSbS2 in a water/formamide mixture at room temperature. In order to modify the gas adsorption capacity the synthesized CuSb2S4 aerogel was loaded with different amounts of LiCl. CO2 adsorption measurements on the CuSb2S4 aerogel before and after treatment with LiCl showed more than three times increased uptake of the LiCl-modified chalcogel. The selectivities of the gas pairs CO2/H2 and CO2/CH4 in the LiCl-treated chalcogel are 235 and 105 respectively and amongst the highest reported for chalcogenide-based aerogels. In comparison with other porous materials like zeolites, activated carbon and most of the Metal Organic Frameworks (MOFs) or Porous Organic Frameworks (POFs), our synthesized aerogels show good air and moisture stability. Although, the CO2 storage capacity of our aerogels is relatively low, however the selectivity of CO2 over H2 or CH4 in LiCl-loaded aerogels are higher than in zeolites, activated carbon as well as some MOFs like Cu-BTC and MOF-5 etc.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 220, 15 January 2016, Pages 247–252
نویسندگان
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