Bimetallic zeolitic imidazolate frameworks towards gas adsorption
A novel bimetallic Zn-Co zeolitic imidazolate frameworks has been constructed by a simple and straight forward room temperature technique.Afterwards several characteristic techniques such as SEM,TEM-EDX,single-crystal XRD and ICP have been confirmed that the structure forms sodalite(SOD)cage structure.The Zn-Co-ZIF presents highly nano-crystallinity and porosity with large surface area.It was observed that by tuning dual metals in zeolitic imidazolate frameworks the physical/chemical properties and also stability has been improved compared with the single metal frameworks(Zn-ZIF-8 and Co-ZIF-67).Therefore the Zn-Co-ZIF were investigated in two different applications; gas adsorption(CO2,CH4 and N2)and catalytic activity(CO2 conversion to cyclic carbonates)and the results compared to the previously reported single metal frameworks(Zn-ZIF-8 and Co-ZIF-67).The hydrolitic stability tests under ambient conditions and immersing in water were carried out for Zn-Co-ZIF which presented high stability.Moreover,based on these results confirming the dual metals(Zn-Co-ZIF)demonstrate better properties compared with single metal on ZIFs.
bimetal zeolitic imidazolate frameworks gas adsorption hydrolitic stability
Tingting Wang Kui Zhou Francis Verpoort
Laboratory of Organometallics,Catalysis and Ordered Materials,State Key Laboratory of Advanced Technology for Materials Synthesis and Processing;Center for Chemical and Material Engineering, Wuhan University of Technology, Wuhan 430070, P.R.China
国内会议
上海
英文
1-11
2016-11-04（万方平台首次上网日期，不代表论文的发表时间）