نتایج جستجو برای: mof 5

تعداد نتایج: 1219234  

این پژوهش مراحل تهیه، شناسایی و ارزیابی عملکرد غشاهای میکروفیلتراسیون زمینه مخلوط با خاصیت ضد گرفتگی را نشان می‌دهد. هدف اصلی این پزوهش، بررسی تأثیر چارچوب­های آلی-فلزی (MOFs) به‌عنوان پرکننده در مقیاس نانو برای تولید غشای زمینه مخلوط از پلیمر پلی وینیلیدین فلورید (PVDF) می‌باشد که به روش وارونگی فاز ساخته‌شده است. عکس­های میکروسکوپ الکترونی(SEM)  نشان داد که با افزایشMOF(TMU-5)، اندازه حفره و ...

2017
Wahiduzzaman Kelsey Allmond John Stone Spencer Harp Khan Mujibur

We report the sonochemical synthesis of MOF (metal organic framework) nanoparticles of 30-200 nm in size and electrospraying of those particles on electrospun nanofibers to process a MOF-attached nanofibrous membrane. This membrane displayed significant selectivity towards CO2 and capacity of adsorbing with 4000-5000 ppm difference from a mixed gas flow of 1% CO2 and 99% N2. Applying ultrasonic...

Journal: :Journal of the American Chemical Society 2016
Noelle R Catarineu Alexander Schoedel Philipp Urban Maureen B Morla Christopher A Trickett Omar M Yaghi

Structural diversity of metal-organic frameworks (MOFs) has been largely limited to linkers with at most two different types of coordinating groups. MOFs constructed from linkers with three or more nonidentical coordinating groups have not been explored. Here, we report a robust and porous crystalline MOF, Zn3(PBSP)2 or MOF-910, constructed from a novel linker PBSP (phenylyne-1-benzoate, 3-benz...

Journal: :Dalton transactions 2017
Atsushi Kondo Takayuki Suzuki Ryosuke Kotani Kazuyuki Maeda

A new 3D metal-organic framework (MOF), in which 2D layers are interlaced to form a 3D architecture, was synthesized by a reaction of Cu(BF4)2 and 1,3-bis(4-pyridyl)propane (bpp) in a water/1-hexanol solvent system, and the crystal structure of the MOF was successfully solved. The MOF is reversibly transformed to a 1D chain MOF, which shows gate adsorption properties. The dynamic transformation...

Journal: :Dalton transactions 2014
Ram Kumar Kolleboyina Jayaramulu Tapas Kumar Maji C N R Rao

Homogeneous graphene-MOF composites based on a 2D pillared-bilayer MOF (Cd-PBM), {[Cd4(azpy)2(pyrdc)4(H2O)2]·9H2O}n (azpy = 4,4'-azopyridine, pyrdc = pyridine-2,3-dicarboxylate), have been synthesized, using both graphene oxide (GO) and benzoic acid functionalized graphene (BFG). The composites GO@Cd-PBM and BFG@Cd-PBM demonstrate growth of the 2D nano-sheets of MOF on the graphene surface. Whi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی شیراز - دانشکده مهندسی شیمی و نفت 1394

احیای الفین های سبک خصوصاً پروپیلن که از شکست پروپان تهیه می شود یکی از فرآیندهای مهم در صنعت پتروشیمی است. همچنین این فرایند شامل جداسازی مخلوط c3h6/c3h8 نیز می باشد. جداسازی مذکور که معمولاً به روش هایی انجام می شود که با مصرف بالای انرژی و هزینه زیاد همراه است، بنابراین تلاش های بسیاری برای یافتن روشی جایگزین صورت گرفته است که یکی از این روش ها فرآیند جذب می باشد ساختارهای آلی-فلزی به علت داشت...

Journal: :Science 2003
Nathaniel L Rosi Juergen Eckert Mohamed Eddaoudi David T Vodak Jaheon Kim Michael O'Keeffe Omar M Yaghi

Metal-organic framework-5 (MOF-5) of composition Zn4O(BDC)3 (BDC = 1,4-benzenedicarboxylate) with a cubic three-dimensional extended porous structure adsorbed hydrogen up to 4.5 weight percent (17.2 hydrogen molecules per formula unit) at 78 kelvin and 1.0 weight percent at room temperature and pressure of 20 bar. Inelastic neutron scattering spectroscopy of the rotational transitions of the ad...

Journal: :Chemical communications 2015
Stefan Wuttke Simone Braig Tobias Preiß Andreas Zimpel Johannes Sicklinger Claudia Bellomo Joachim O Rädler Angelika M Vollmar Thomas Bein

We report the synthesis of MOF@lipid nanoparticles as a versatile and powerful novel class of nanocarriers based on metal-organic frameworks (MOFs). We show that the MOF@lipid system can effectively store dye molecules inside the porous scaffold of the MOF while the lipid bilayer prevents their premature release. Efficient uptake of the MOF@lipid nanoparticles by cancer cells makes these nanoca...

Journal: :Dalton transactions 2013
Nina Lock Mogens Christensen Yue Wu Vanessa K Peterson Maja K Thomsen Ross O Piltz Anibal J Ramirez-Cuesta Garry J McIntyre Katarina Norén Ramzi Kutteh Cameron J Kepert Gordon J Kearley Bo B Iversen

Complementary experimental techniques and ab initio calculations were used to determine the origin and nature of negative thermal expansion (NTE) in the archetype metal-organic framework MOF-5 (Zn(4)O(1,4-benzenedicarboxylate)(3)). The organic linker was probed by inelastic neutron scattering under vacuum and at a gas pressure of 175 bar to distinguish between the pressure and temperature respo...

Journal: :Angewandte Chemie 2015
Antigoni Douvali Athanassios C Tsipis Svetlana V Eliseeva Stéphane Petoud Giannis S Papaefstathiou Christos D Malliakas Ioannis Papadas Gerasimos S Armatas Irene Margiolaki Mercouri G Kanatzidis Theodore Lazarides Manolis J Manos

The development of efficient sensors for the determination of the water content in organic solvents is highly desirable for a number of chemical industries. Presented herein is a Mg(2+) metal-organic framework (MOF), which exhibits the remarkable capability to rapidly detect traces of water (0.05-5 % v/v) in various organic solvents through an unusual turn-on luminescence sensing mechanism. The...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید