نتایج جستجو برای: mof

تعداد نتایج: 4004  

Journal: :Chemical communications 2012
Osama Shekhah Liling Fu Rachid Sougrat Youssef Belmabkhout Amy J Cairns Emmanuel P Giannelis Mohamed Eddaoudi

Here we report the successful growth of highly crystalline homogeneous MOF thin films of HKUST-1 and ZIF-8 on mesoporous silica foam, by employing a layer-by-layer (LBL) method. The ability to control and direct the growth of MOF thin films on confined surfaces, using the stepwise LBL method, paves the way for new prospective applications of such hybrid systems.

Journal: :Chemical communications 2015
Wenlong Zhen Bo Li Gongxuan Lu Jiantai Ma

A novel, highly active catalyst Ni@MOF-5 showed unexpected activity at low temperature for CO2 methanation. The characterization results indicated that Ni was uniformly and highly dispersed over MOF-5. This catalyst showed high stability and almost no deactivation in long term stability tests up to 100 h.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید مدنی آذربایجان - دانشکده علوم پایه 1392

چارچوب های فلزی-آلی(mof) ها گروهی از مواد هیبریدی آلی- معدنی میباشند که از خوشه های فلزی ساخته شده اند که این خوشه ها توسط یک اتصال دهنده آلی به یکدیگر متصل شده اند. این مواد به دلیل داشتن سطح وسیع و حجم منافذ بالا توجهات فراوانی را به خود جلب کرده اند. co2 یکی از گازهای گلخانه ای می¬باشد که باعث گرم تر شدن کره زمین شده است. بدین منظور توسعه فن آوری هایی برای زدایش و جداسازی مقادیر زیاد co2 ضر...

Journal: :Dalton transactions 2014
Tony D Keene Michael J Murphy Jason R Price Natasha F Sciortino Peter D Southon Cameron J Kepert

The properties of atmospheric CO2 fixation, metamagnetism, reversible guest adsorption and zero thermal expansion have been combined in a single robust MOF, [Cu3(bpac)3(CO3)2](ClO4)2·H2O (·H2O). This compound is a ditopically-bridged copper carbonate kagome lattice where desolvation of the MOF allows subtle tuning of the metamagnetic and uniaxial ZTE behaviour.

Journal: :Chemical communications 2015
Peter Siman Christopher A Trickett Hiroyasu Furukawa Omar M Yaghi

Metal-organic frameworks (MOFs) based purely on sodium are rare, typically due to large numbers of coordinating solvent ligands. We designed a tetratopic aspartate-based linker with flexible carboxylate groups to enhance framework stability. We report two new air-stable sodium MOFs, MOF-705 and MOF-706, comprising 2D sodium oxide sheets.

Journal: :Advanced materials 2013
Hirotaka Ejima Nobuhiro Yanai James P Best Melinda Sindoro Steve Granick Frank Caruso

Faceted polymer microcapsules are prepared from metal-organic framework (MOF) templates. The MOF templates are removable under mild aqueous conditions. The obtained microcapsules are stiffer than their spherical counterparts, reflecting the near-incompressibility of the facet edges, and indicating that the faceting might be a useful strategy for controlling the mechanical properties of polymer ...

Journal: :Chemical communications 2016
You Zhou Bing Yan

A responsive luminescent MOF nanocomposite has been developed by postsynthetic incorporation of Eu(3+) cations into a robust nanocrystalline framework. The resultant MOF nanocomposite can serve as a platform for recognizing aromatic VOCs with similar structures and physical properties based on an unprecedented dual-readout identification scheme.

Journal: :Inorganic chemistry 2014
Olga Karagiaridi Wojciech Bury David Fairen-Jimenez Christopher E Wilmer Amy A Sarjeant Joseph T Hupp Omar K Farha

The synthesis of a permanently porous pillared-paddlewheel metal-organic framework (MOF) was achieved through transmetalation of Zn(II) with Ni(II). The MOF can be treated with liquid water, leading to the reversible displacement of 50% of its pillars by water molecules and resulting in a most unusual crystalline and permanently porous structure.

Journal: :Journal of the American Chemical Society 2009
Abraham M Shultz Omar K Farha Joseph T Hupp SonBinh T Nguyen

Through the use of the tetratopic ligand 1,2,4,5-tetrakis(4-carboxyphenyl)benzene as a key building block, a permanently microporous metal-organic framework with Lewis acidic (porphyrin)Zn struts, ZnPO-MOF, can be made in high yields. ZnPO-MOF can efficiently catalyze acyl-transfer reactions primarily by preconcentrating the substrates within its pores, in stark contrast to analogous supramolec...

2008
Ilya Levin Osnat Keren

A new data structure called Split Multi-terminal Binary Decision Diagrams (Split MTBDD) is introduced for representing Multi–Output logic Functions (MOF). Split MTBDDs are efficient for some functions where conventional BDDs are not. A Split MTBDD comprises interconnected MTBDD components, each associated with a “dichotomic fragment”. The “dichotomy” reflects cognitive patterns introduced by th...

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