نتایج جستجو برای: ذرات بلوری zif 8

تعداد نتایج: 672286  

Journal: :ACS Sustainable Chemistry & Engineering 2023

This work aims to shed light on the performance of zeolitic imidazolate frameworks for hydrogen purification from coke oven gases (COG). Using molecular simulation, we model COG as a mixture six and study effect ZIF topology separation performance. To do this, compare similar structures, e.g., ZIF-8 ZIF-11, focus obtaining information that explains why they behave differently while being so sim...

Journal: :Advanced Materials Interfaces 2023

Bacteria are difficult to be eliminated because of their multi-drug resistance, which brings significant threats public health. Among the antibacterial methods, mechanobactericidal surfaces provide a possible approach solving this problem. In study, generally used mechanical sterilization is developed by fabricating nanostructured coating. The functional coating simply fabricated growing zeolit...

Journal: :Journal of physics 2023

Abstract Poly (m-phenylene isophthalamide) (PMIA) membranes are prepared via evaporating part solvent of the casting solution before its nonsolvent-induced phase separation. Zeolite imidazolate framework-8 (ZIF-8) is added into PMIA as an inorganic filler to improve filtration capability membrane. The structure composite characterized by scanning electron microscopy (SEM), Zeta-potential analyz...

Journal: :Physical review letters 2010
Thomas D Bennett Andrew L Goodwin Martin T Dove David A Keen Matthew G Tucker Emma R Barney Alan K Soper Erica G Bithell Jin-Chong Tan Anthony K Cheetham

ZIF-4, a metal-organic framework (MOF) with a zeolitic structure, undergoes a crystal-amorphous transition on heating to 300 degrees C. The amorphous form, which we term a-ZIF, is recoverable to ambient conditions or may be converted to a dense crystalline phase of the same composition by heating to 400 degrees C. Neutron and x-ray total scattering data collected during the amorphization proces...

Journal: :Catalysts 2022

Zn1?xCdxS catalysts with Zeolitic Imidazolate Framework-8 (ZIF-8) as the precursor were successfully prepared by ion exchange method, and ability electrochemical properties of a series ZIF-8, ZnS in photocatalytic degradation 2-CP TC investigated. Doping Cd ions was able to modulate band gap width improve utilization visible light photocatalyst. The nanocage hollow structure have better respons...

2012
Olga Karagiaridi Wojciech Bury Amy A. Sarjeant Charlotte L. Stern Omar K. Farha Joseph T. Hupp

Herein, we present the first examples of solvent-assisted linker exchange (SALE) in zeolitic imidazolate frameworks (ZIFs). By exposing the ZIF CdIF-4 to excess solutions of 2-nitroimidazole and 2methylimidazole under solvothermal conditions, we were able to obtain a previously reported ZIF CdIF-9 in high yield, as well as synthesize a new ZIF, Solvent-Assisted Linker-Exchanged Material-1 (SALE...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1988
B A Christy L F Lau D Nathans

We have recently identified by cDNA cloning a set of genes that are rapidly activated in mouse 3T3 cells by serum or purified growth factors. Here we report that the cDNA (clone 268) derived from one of these immediate early genes (zif/268) encodes a protein with three tandem "zinc finger" sequences typical of a class of eukaryotic transcription factors. The mRNA of zif/268 is present in many o...

Journal: :Dalton transactions 2013
Ming He Jianfeng Yao Qi Liu Zhaoxiang Zhong Huanting Wang

Toluene was discovered as the structure template for the synthesis of large-cage RHO-type zeolitic imidazolate frameworks (ZIF-11 and ZIF-12) in an alcohol-based solution where benzimidazole-toluene interactions play a decisive structure-directing role; otherwise it leads to small-cage SOD-type ZIF-7 and ZIF-9 without toluene. The specific π-π interactions make toluene molecules adopt a specifi...

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