Enhanced Hydrostability in Ni-Doped MOF-5

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• 作者：Huanhuan Li ; Wei Shi ; Kaina Zhao ; Han Li ; Yanmin Bing ; Peng Cheng
• 刊名：Inorganic Chemistry
• 出版年：2012
• 出版时间：September 3, 2012
• 年：2012
• 卷：51
• 期：17
• 页码：9200-9207
• 全文大小：629K
• 年卷期：v.51,no.17(September 3, 2012)
• ISSN：1520-510X

文摘

Ni-doped MOF-5s were successfully synthesized for the first time via solvothermal crystallization process to enhance the hydrostability. Several characterization techniques, including X-ray diffraction (XRD), thermogravimetrical analysis (TGA), scanning electron microscopy (SEM), energy-dispersive spectroscopy instrument (EDS), inductively coupled plasma (ICP), infrared spectroscopy (IR), atomic sorption, diffuse-reflectance UV鈥搗is spectroscopy, and gas sorption measurement, strongly support the effective incorporation of Ni(II) ions into the framework. The results demonstrated that the Ni-doped MOF-5s not only exhibit larger Langmuir specific surface areas and larger pores than the undoped MOF-5, but also significantly enhance water resistance of the framework. The H₂ uptake capacity of undoped MOF-5 drops rapidly when exposed to the ambient air, whereas the H₂ adsorptions of the Ni-doped MOF-5s remain stable for 4 days.