The family of M-MOF-74, with M = Co, Cr, Cu, Fe, Mg, Mn, Ni, Ti, V, and Zn, provides opportunities for numerous energy related gas separation applications. The pore structure of M-MOF-74 exhibits a high internal surface area and an exceptionally large adsorption capacity. The chemical environment of the adsorbate molecule in M-MOF-74 can be tuned by exchanging the metal ion incorporated in the ...

Rechargeable alkaline battery is a potential high-powered next-generation electrochemical energy storage equipment. However, the inferior density, compare with other technologies, restrict its further practical applications. To address this, rational design and optimization of electrode significance. Herein, we demonstrate construction high density NiCo/Bi by controllable MOF hydrolysis. Specif...

Reaction of 2,3,6,7,10,11-hexaaminotriphenylene with Ni(2+) in aqueous NH3 solution under aerobic conditions produces Ni3(HITP)2 (HITP = 2,3,6,7,10,11-hexaiminotriphenylene), a new two-dimensional metal-organic framework (MOF). The new material can be isolated as a highly conductive black powder or dark blue-violet films. Two-probe and van der Pauw electrical measurements reveal bulk (pellet) a...

We investigated which factors govern the critical steps of cation exchange in metal-organic frameworks by studying the effect of various solvents on the insertion of Ni(2+) into MOF-5 and Co(2+) into MFU-4l. After plotting the extent of cation insertion versus different solvent parameters, trends emerge that offer insight into the exchange processes for both systems. This approach establishes a...

In this work, size-controlled synthesis of nickel ferrite nanoparticles was achieved by the calcination a bimetallic (Fe/Ni) metal-organic framework (MOF). The MOF (Fe2Ni-MIL-88B) itself prepared two-step route. first step involved secondary building unit (SBU) reacting stoichiometric amounts Ni and Fe precursors with acetic acid. A ligand substitution reaction (terephthalate replaces acetate) ...

MWCNTs composite with UiO-66-NH 2 MOF doped Ni( ii ) ions produced a highly efficient heterogeneous electrocatalyst for the water oxidation reaction.

In this work, we report the incorporation of nickel oxide nanoparticles into a metal–organic framework (MOF) structure by solvent-free mechanochemical strategy. particular, zirconium-based MOF UiO-66 was modified with different Ni loadings and characterized using complementary techniques including X-ray diffraction (XRD), N2 porosimetry photoelectron spectroscopy (XPS). The catalytic potential ...

The quantum sieving effect between D2 and H2 is examined for a series of metal-organic frameworks (MOFs) over the temperature range 77-150 K. Isothermal adsorption measurements demonstrate a consistently larger isosteric heat of adsorption for D2 vs H2, with the largest difference being 1.4 kJ/mol in the case of Ni-MOF-74. This leads to a low-pressure selectivity for this material that increase...

Radon is one of the 19 carcinogenic substances identified by World Health Organization, posing a significant threat to human health and environment. Properly removing radon under ambient conditions remains challenging. Compared with traditional radon−adsorbent materials such as activated carbon zeolite, metal–organic framework (MOF) provide high specific surface area, rich structure, designabil...

We have examined the methane uptake properties of six of the most promising metal organic framework (MOF) materials: PCN-14, UTSA-20, HKUST-1, Ni-MOF-74 (Ni-CPO-27), NU-111, and NU-125. We discovered that HKUST-1, a material that is commercially available in gram scale, exhibits a room-temperature volumetric methane uptake that exceeds any value reported to date. The total uptake is about 230 c...