Graphene-manganese oxide hybrid porous material and its application in carbon dioxide adsorption  

作　　者：ZHOU Ding LIU Qing CHENG QianYi ZHAO YanChao CUI Yi WANG Tao HAN BaoHang 

机构地区：[1]National Center for Nanoscience and Technology, Beijing 100190, China [2]State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai 200050, China)

出　　处：《Chinese Science Bulletin》2012年第23期3059-3064,共6页

基　　金：supported by the National Natural Science Foundation of China(91023001);the Knowledge Innovation Program of Chinese Academy of Sciences(KJCX2-YW-H21)

摘　　要：Graphene-Mn3O4 (GMNO) hybrid porous material is prepared by a hydrothermal method and its performance in carbon dioxide adsorption is investigated.In the synthesis of the GMNO materials,MnO(OH)2 colloid obtained by the hydrolysis of Mn 2+ in basic solution was using as the precursor of the Mn3O4.After a hydrothermal reaction of the mixture of graphene oxide (GO) and MnO(OH)2,GO was reduced into graphene and the MnO(OH)2 was transformed into Mn3O4 with enhanced crystallization.X-ray diffraction,thermal gravimetric analysis,transmission electron microscopy,infrared spectra and Raman spectroscopy were taken to characterize the hybrid material.The porosity and the carbon dioxide adsorption ability are measured by gas sorption analysis,in which the as-prepared GMNO hybrid materials exhibit a specific surface area ranging from 140 to 680 m2g-1 and a maximum carbon dioxide capacity of about 11 wt%.Graphene-Mn304 （GMNO） hybrid porous material is prepared by a hydrothermal method and its performance in carbon dioxide adsorption is investigated. In the synthesis of the GMNO materials, MnO（OH）2 colloid obtained by the hydrolysis of Mn2~ in basic solution was using as the precursor of the Mn304. After a hydrothermal reaction of the mixture of graphene oxide （GO） and MnO（OH）2, GO was reduced into graphene and the MnO（OH）2 was transformed into Mn304 with enhanced crystallization. X-ray diffraction, thermal gravimetric analysis, transmission electron microscopy, infrared spectra and Raman spectroscopy were taken to characterize the hybrid material. The porosity and the carbon dioxide adsorption ability are measured by gas sorption analysis, in which the as-prepared GMNO hybrid materials exhibit a specific surface area ranging from 140 to 680 m2 g-l and a maximum carbon dioxide capacity of about 11 wt%.

关 键 词：GRAPHENE MANGANESE OXIDE POROUS material CARBON dioxide ADSORPTION 

分 类 号：TB383.4[一般工业技术—材料科学与工程]