Preparation of zinc oxide nanoparticles from nanoporous metal–organic framework with one-dimensional channels occupied with guest water molecules
摘要:
A new nanoporous metal-organic framework Zn-2(NDC)(2)(DMF)(2)(H2O)(4) (1 center dot DMF center dot H2O) [H2NDC = 2,6-naphthalene dicarboxylic acid and DMF = N,N'-dimethylformamide], with guest water molecules has been synthesized and characterized. This MOF is made up of a stacked arrangement of four-connected layers. Stacked arrangement of layers results in formation of nanoporous channels. The thermal stabilities of 1 center dot DMF center dot H2O and 1 center dot DMF were studied by TGA (thermo gravimetric analyses). The host and the apohost frameworks of 1 center dot DMF center dot H2O, 1 center dot DMF and 1 were used for preparation of ZnO nanomaterials. With calcination of the host framework of 1 center dot DMF center dot H2O, ZnO nanoparticles can be fabricated. By the same process on the apohost frameworks of 1 center dot DMF and 1, agglomerated nanoparticles of ZnO were formed. (C) 2015 Elsevier B.V. All rights reserved.
Preparation of zinc oxide nanoparticles from nanoporous metal–organic framework with one-dimensional channels occupied with guest water molecules
摘要:
A new nanoporous metal-organic framework Zn-2(NDC)(2)(DMF)(2)(H2O)(4) (1 center dot DMF center dot H2O) [H2NDC = 2,6-naphthalene dicarboxylic acid and DMF = N,N'-dimethylformamide], with guest water molecules has been synthesized and characterized. This MOF is made up of a stacked arrangement of four-connected layers. Stacked arrangement of layers results in formation of nanoporous channels. The thermal stabilities of 1 center dot DMF center dot H2O and 1 center dot DMF were studied by TGA (thermo gravimetric analyses). The host and the apohost frameworks of 1 center dot DMF center dot H2O, 1 center dot DMF and 1 were used for preparation of ZnO nanomaterials. With calcination of the host framework of 1 center dot DMF center dot H2O, ZnO nanoparticles can be fabricated. By the same process on the apohost frameworks of 1 center dot DMF and 1, agglomerated nanoparticles of ZnO were formed. (C) 2015 Elsevier B.V. All rights reserved.
Saturation of Hydrogen Sorption in Zn Benzenedicarboxylate and Zn Naphthalenedicarboxylate
作者:Anne Dailly、John J. Vajo、Channing C. Ahn
DOI:10.1021/jp0563538
日期:2006.1.1
We report excess hydrogen saturation values from high-pressure isotherms of metal organic framework structures taken at 77 K. Zn benzendicarboxylate (IRMOF-1) and Zn naphthalendicarboxylate (IRMOF-8) linker structures show identical saturation values of 137 hydrogen molecules on a per unit cell basis, despite the higher sorption potential of IRMOF-8 of 6.1 kJ/mol over that of IRMOF-1 of 4.IkJ/mol. Charge transfer between linker and vertex, as well as surface area, appear to dominate the sorption behavior, over that of linker length in these two systems.
Preparation of zinc oxide nanoparticles from nanoporous metal–organic framework with one-dimensional channels occupied with guest water molecules
作者:Fatemeh Shahangi Shirazi、Kamran Akhbari
DOI:10.1016/j.ica.2015.07.025
日期:2015.9
A new nanoporous metal-organic framework Zn-2(NDC)(2)(DMF)(2)(H2O)(4) (1 center dot DMF center dot H2O) [H2NDC = 2,6-naphthalene dicarboxylic acid and DMF = N,N'-dimethylformamide], with guest water molecules has been synthesized and characterized. This MOF is made up of a stacked arrangement of four-connected layers. Stacked arrangement of layers results in formation of nanoporous channels. The thermal stabilities of 1 center dot DMF center dot H2O and 1 center dot DMF were studied by TGA (thermo gravimetric analyses). The host and the apohost frameworks of 1 center dot DMF center dot H2O, 1 center dot DMF and 1 were used for preparation of ZnO nanomaterials. With calcination of the host framework of 1 center dot DMF center dot H2O, ZnO nanoparticles can be fabricated. By the same process on the apohost frameworks of 1 center dot DMF and 1, agglomerated nanoparticles of ZnO were formed. (C) 2015 Elsevier B.V. All rights reserved.