Alumina-coated ordered mesoporous silica as an efficient and stable water adsorbent for adsorption heat pump

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• 作者：Chaehoon Kim^a ; Kanghee Cho^b ; Sang Kyum Kim^b ; ^c ; Eun Kyung Lee^b ; ^d ; Jong-Nam Kim^b ; Minkee Choi^a ; ^{mkchoi@kaist.ac.kr}
• 关键词：Mesoporous silica ; Alumina ; Hydrothermal stability ; Water adsorption ; Adsorption heat pump
• 刊名：Microporous and Mesoporous Materials
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：239
• 期：Complete
• 页码：310-315
• 全文大小：1296 K
• 卷排序：239

文摘

Alumina-coated MCM-41 was synthesized as a H2O adsorbent for adsorption heat pump. The mesopore size was reduced to 2.05 nm by the alumina coating on MCM-41. Hydrothermal stability was remarkably enhanced after the alumina coating. The adsorbent showed ideal H2O capillary condensation in 0.1 < P/Po < 0.3 at 303 K. High H2O working capacity of 0.27 g/g could be retained over 10 AHP cycles.