Carbon Reports最新文献_第4页

Adsorption properties of templated nanoporous carbons consisting of 1-2 graphene layers 由1-2层石墨烯组成的模板纳米孔碳的吸附性能

Carbon Reports Pub Date : 1900-01-01 DOI: 10.7209/carbon.010301

H. Nishihara, Hongwei Zhao, Kazuya Kanamaru, K. Nomura, Mao Ohwada, Masashi Ito, Lixiang Li, B. An, T. Horikawa, T. Kyotani

{"title":"Adsorption properties of templated nanoporous carbons consisting of 1-2 graphene layers","authors":"H. Nishihara, Hongwei Zhao, Kazuya Kanamaru, K. Nomura, Mao Ohwada, Masashi Ito, Lixiang Li, B. An, T. Horikawa, T. Kyotani","doi":"10.7209/carbon.010301","DOIUrl":"https://doi.org/10.7209/carbon.010301","url":null,"abstract":"A variety of vapor adsorption (water, methanol, ethanol, dichloromethane, and n -hexane) is examined on templated nanoporous carbons consisting of 1-2 graphene layers including microporous zeolite-templated carbon (ZTC), mesoporous carbon mesosponge (CMS) and graphene mesosponge (GMS). Conventional nanoporous carbon materials are used as references. While water-vapor adsorption is peculiar because of the repulsion between H 2 O molecules and hydrophobic carbon, organic-vapor adsorption basically follows the mechanism of typical physisorption. The graphene-based nanoporous materials exhibit a noticeable degree of adsorption-induced expansion from their extraordinary softness except the case of inferior water-vapor adsorption on mesoporous CMS and GMS. CMS exhibits an especially large degree of adsorption-induced expansion, and achieved very high adsorption capacities up to 4.25‒4.76 cm 3 g ‒1 for organic vapors, demonstrating its feasibility as a high-capacity adsorbent. The adsorption isotherms of ZTC at 278 K and 298 K for n -hexane are overlapping well, and it is advantageous for a new type of heat pump working with force-induced phase transition. Moreover, this work provides a general prediction of the ease of organic-vapor adsorption by the product of surface tension and molar volume.","PeriodicalId":371463,"journal":{"name":"Carbon Reports","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133778640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}