نتایج جستجو برای: چارچوب فلز آلی mof
تعداد نتایج: 41750 فیلتر نتایج به سال:
We review the central concepts required from a project and configuration management system for MOF-based models. The necessary features for a model repository and MOF framework are given, as well as suggestions of several algorithms and components.
The effect of light metal (M = Li, Be, Mg, and Al) decoration on the stability of metal organic framework MOF-5 and its hydrogen adsorption is investigated by ab initio and periodic density functional theory (DFT) calculations by employing models of the form BDC:M2:nH2 and MOF-5:M2:nH2, where BDC stands for the benzenedicarboxylate organic linker and MOF5 represents the primitive unit cell. The...
Materials development for artificial photosynthesis, in particular, CO2 reduction, has been under extensive efforts, ranging from inorganic semiconductors to molecular complexes. In this report, we demonstrate a metal-organic framework (MOF)-coated nanoparticle photocatalyst with enhanced CO2 reduction activity and stability, which stems from having two different functional units for activity e...
The inclusion of solvent in metal-organic framework (MOF) materials is a highly specific form of guest-host interaction. In this work, the energetics of solvent MOF-5 interactions has been investigated by solution calorimetry in 5 M sodium hydroxide (NaOH) at room temperature. Solution calorimetric measurement of enthalpy of formation (ΔH(f)) of Zn4O(C8H4O4)3·C3H7NO (MOF-5·DMF) and Zn4O(C8H4O4)...
Despite numerous studies on chemical and thermal stability of metal-organic frameworks (MOFs), mechanical stability remains largely undeveloped. To date, no strategy exists to control the mechanical deformation of MOFs under ultrahigh pressure. Here, we show that the mechanically unstable MOF-520 can be retrofitted by precise placement of a rigid 4,4'-biphenyldicarboxylate (BPDC) linker as a "g...
Two new 8-O-alkyl derivatives of riboflavin (RF), i.e., 8-methoxy- (MOF), and 8-ethoxy-8-demethyl-D-riboflavin (EOF), their tetraacetate, and the tetraacetate of 8-hydroxy-8-demethyl-D-riboflavin (HOF) were synthesized. The anti-RF activity of MOF, EOF and HOF was estimated from the ratio CR/CI, where CI is the concentration of test flavin added to the culture medium and CR is the minimum conce...
As an important subclass of metal-organic frameworks (MOFs), homochiral MOFs show special ability of asymmetric catalysis and enantioselective separation via the open chiral channels or cavities. A new homochiral MOF membrane [Ni2(mal)2(bpy)]•2H2O (Ni-MB) was synthesized by a secondary growth technique, in which high energy ball milling was employed to prepare nanosized MOF seeds, and their syn...
فلزات سنگین به ویژه جیوه به دلیل سمیت و پایداری در محیط زیست از نظر سلامت عمومی حائز اهمیت است. در این تحقیق برای بررسی چگونگی توزیع غلظت فلز سنگین جیوه در رسوبات سواحل دریای خزر در استان مازندران، 12 ایستگاه انتخاب و با استفاده از روش سیستماتیک تصادفی، از هر ایستگاه 5 نمونه از رسوبات ساحلی برداشت شد. بعد از انجام تجزیه و تحلیل های آزمایشگاهی به منظور درون یابی توزیع غلظت عنصر جیوه از روش معکوس...
MOF membranes have gained widespread attention due to their unprecedented gas separation performance. Relying on physical interactions, we successfully deposited MOF seeds on a substrate modified with a network of vertically aligned LDH walls before secondary growth of the MOF layer. ZIF-8 membranes thus prepared show considerable H2 permeance with high H2-CH4 selectivity. This approach is in g...
The Meta Object Facility (MOF) forms one of the core standards of the Object Management Group’s Model Driven Architecture. It has several use-cases, including as a repository service for storing abstract models used in distributed objectoriented software development, a development environment for generating CORBA IDL, and a metamodeling language for the rapid specification, construction, and ma...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید