CAJ | 학술논문

采用溶剂热法制备了纳米金属有机框架材料,通过粉末x射线衍射(PXRD)、高分辨透射电镜(HRTEM)、红外光谱(FT-IR)、热重分析(TG)、差示扫描量热法(DSC)和压力-组成-温度测试仪(PCI)等分析和表征手段,获得了该材料结构、形貌、热稳定性和吸附性能等信息.该材料对不同吸附质(如水0.19 g/g和苯0.41 g/g),表现出不同的吸附能力,并具有双亲功能.在77 K,1.5 MPa条件,其储氢量为3.2%(质量分数,下同),包含微孔内填充的高压氢气时为3.4%,包含中孔、微孔内填充的高压氢气时为3.9%.
채용용제열법제비료납미금속유궤광가재료,통과분말x사선연사(PXRD)、고분변투사전경(HRTEM)、홍외광보(FT-IR)、열중분석(TG)、차시소묘량열법(DSC)화압력-조성-온도측시의(PCI)등분석화표정수단,획득료해재료결구、형모、열은정성화흡부성능등신식.해재료대불동흡부질(여수0.19 g/g화분0.41 g/g),표현출불동적흡부능력,병구유쌍친공능.재77 K,1.5 MPa조건,기저경량위3.2%(질량분수,하동),포함미공내전충적고압경기시위3.4%,포함중공、미공내전충적고압경기시위3.9%.
. The nano-scale metal organic frameworks (Nano-MOF) were synthesized under solvothermal conditions (N, N-dimethyllformamide, DMF)and characterized by PXRD, HRTEM, FT-IR, TG, DSC, PCI, and etc., to obtain relevant information of structures, morphologies, thermal stability and adsorption capabilities. The adsorption measure-ments of various guest molecules on Nano-MOF were also carried out, showing high adsorption capacity. 0.19 g/g for wa-ter and 0.41 g/g for benzene were adsorbed on Nano-MOF, indicating both the hydrophilic and hydrophobic properties of the framework. The hydrogen storage capacity of the framework at 77 K, 1.5MPa was 3.2% ( mass fraction, similarly hereinafter) (3.4% with H2filled in micropores and 3.9% with H2filled in micropores and mesopores).