scholarly journals Synthesis and Characterization of an Iron Nitride Constructed by a Novel Template of Metal Organic Framework

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Suyan Liu ◽  
Quan Huo ◽  
Rongna Chen ◽  
Peipei Chen ◽  
Yuan Li ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Surface Area ◽  
Metal Organic Framework ◽  
Iron Nitrides ◽  
Synthesis Process ◽  
Iron Nitride ◽  
Transition Metal Nitrides ◽  
Surface Areas ◽  
Metal Organic ◽  
Organic Framework

An iron nitride with high surface area was synthesized from an iron-based metal organic framework (Fe-MOF) in this work. During the synthesis process, the Fe-MOF of MIL-53 served as a hard template, a template to impart a certain degree of morphology for iron oxide products and to form porosities for iron nitride products. Moreover, it played the roles of iron sources for the synthesis of the final iron oxides and the iron nitrides. The physicochemical properties of the materials were characterized by a series of technologies including XRD, SEM, and N2-adsorption/desorption. The results showed that the iron nitride synthesized from MIL-53 wasα-Fe2-3N. And, theα-Fe2-3N showed the morphology with loosely aggregated particles which favored the formation of rich interparticle porosities. As a result, the surface area of theα-Fe2-3N was larger than those of samples usingα-Fe2O3as precursors and its value was 41 m2/g. In addition, the results agreed that both raw material properties (such as crystallinity and surface areas) and nitriding approaches had significant effects on the surface areas of iron nitrides. Also the results were proved by the iron oxide synthesized with different methods. This new synthetic strategy could be a general approach for the preparation of late transition metal nitrides with peculiar properties.

Preferential adsorption of ethane over ethylene on a Zr-based metal-organic framework: impacts of C-H···N hydrogen bonding

2021 ◽  
Author(s):  
Yaping Zhang ◽  
Daofei Lv ◽  
Jiayu Chen ◽  
Zewei Liu ◽  
Chongxiong Duan ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Surface Area ◽  
Energy Efficient ◽  
Metal Organic Framework ◽  
Bet Surface Area ◽  
Preferential Adsorption ◽  
Metal Organic ◽  
Organic Framework

The separation of ethylene/ethane mixture using energy-efficient technologies is important but challenging. Here, we prepared a Zr-based metal-organic framework (MOF-545) possessing high Brunauer-Emmett-Teller (BET) surface area of 2265.4 m2/g, and...

A highly stable indium based metal organic framework for efficient arsenic removal from water

2018 ◽  
Vol 47 (3) ◽  
pp. 799-806 ◽  
Author(s):  
Hala Atallah ◽  
Mahmoud ELcheikh Mahmoud ◽  
Abdinoor Jelle ◽  
Alan Lough ◽  
Mohamad Hmadeh
Keyword(s):  
Solvothermal Synthesis ◽  
Arsenic Removal ◽  
Metal Organic Framework ◽  
Synthesis Process ◽  
Metal Organic ◽  
Organic Framework

Indium based metal organic framework crystals (AUBM-1) were successfully synthesized via a solvothermal synthesis process. SXRD analysis showed the production of a new In-MOF structure with a pts topology. AUBM-1 was shown to be chemically stable and was used as an adsorbent to efficiently remove arsenic from water.

Formation of a Metal-Organic Framework with High Surface Area and Gas Uptake by Breaking Edges Off Truncated Cuboctahedral Cages

2013 ◽  
Vol 125 (43) ◽  
pp. 11492-11495 ◽  
Author(s):  
Ruirui Yun ◽  
Zhiyong Lu ◽  
Yi Pan ◽  
Xiaozeng You ◽  
Junfeng Bai
Keyword(s):  
Surface Area ◽  
Metal Organic Framework ◽  
High Surface ◽  
High Surface Area ◽  
Gas Uptake ◽  
Metal Organic ◽  
Organic Framework

scholarly journals A new metal–organic framework with ultra-high surface area

2014 ◽  
Vol 50 (26) ◽  
pp. 3450 ◽  
Author(s):  
Ronny Grünker ◽  
Volodymyr Bon ◽  
Philipp Müller ◽  
Ulrich Stoeck ◽  
Simon Krause ◽  
...  
Keyword(s):  
Surface Area ◽  
Metal Organic Framework ◽  
High Surface ◽  
High Surface Area ◽  
Metal Organic ◽  
Organic Framework

The Electrochemical Reduction of a Flexible Mn(II) Salen-Based Metal-Organic Framework

2021 ◽  
Author(s):  
Marcello B Solomon ◽  
Carol Hua ◽  
Bun Chan ◽  
Tamara L Church ◽  
Seth M Cohen ◽  
...  
Keyword(s):  
Electrochemical Reduction ◽  
Surface Area ◽  
Metal Organic Framework ◽  
Experimental Studies ◽  
Bet Surface Area ◽  
Salen Complex ◽  
Computational Calculations ◽  
Metal Organic ◽  
Organic Framework

A new metal-organic framework (MOF) containing a Mn(II) salen complex (BET surface area = 967±6 m2 g−1) undergoes a reversible crystalline-to-amorphous transformation. Experimental studies and computational calculations show that the...

Synthesis and effect of metal–organic frame works on CO2 adsorption capacity at various pressures: A contemplating review

2019 ◽  
Vol 31 (3) ◽  
pp. 367-388 ◽  
Author(s):  
Ayesha Rehman ◽  
Sarah Farrukh ◽  
Arshad Hussain ◽  
Erum Pervaiz
Keyword(s):  
Adsorption Capacity ◽  
Surface Area ◽  
Greenhouse Gas Emission ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Climatic Changes ◽  
Microwave Assisted Synthesis ◽  
Synthesis Methods ◽  
Metal Organic ◽  
Organic Framework

The most important environmental challenge that the world is facing today is the control of the quantity of CO2 in the atmosphere, because it causes global warming. Increase in the global temperature results in greenhouse gas emission, interruption of the volcanic activity, and climatic changes. The alarming rise of the CO2 level impels to take some serious action to control these climatic changes. Various techniques are being utilized to capture CO2. However, chemical absorption and adsorption are supposed to be the most suitable techniques for post-combustion CO2 capture, but the main focus is on adsorption. The aim of this study is to provide a brief overview on the CO2 adsorption by a novel class of adsorbents called the metal–organic framework. The metal–organic framework is a porous material having high surface area with high CO2 adsorption capacity. The metal–organic frameworks possess dynamic structure and have large capacity to adsorb CO2 at either low pressure or high pressure due to its cavity size and surface area. Adsorption of CO2 in the metal–organic framework at various pressures depends upon pore volume and heat of adsorption correspondingly. In this review, different synthesis methods of the metal–organic framework such as slow evaporation, solvo thermal, mechanochemical, electrochemical, sonochemical, and microwave-assisted synthesis are briefly described as the structure of the metal–organic frameworks are mostly dependent upon synthesis techniques. In addition to this, different strategies are discussed to increase the CO2 adsorption capacity in the metal organic-framework. [Formula: see text]

scholarly journals In Situ Polymerization of Polypyrrole @ Aluminum Fumarate Metal–Organic Framework Hybrid Nanocomposites for the Application of Wastewater Treatment

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1764
Author(s):  
Sarah Zayan ◽  
Ahmed Elshazly ◽  
Marwa Elkady
Keyword(s):  
Surface Area ◽  
In Situ Polymerization ◽  
Metal Organic Framework ◽  
Oxidative Polymerization ◽  
Absorption Spectrometry ◽  
Hybrid Nanocomposites ◽  
Bet Surface Area ◽  
Metal Organic ◽  
Organic Framework

Composite metal–organic frameworks combine large and accessible surface areas with low density and high stability. Herein, we present novel nanocomposites of polypyrrole/aluminum fumarate metal–organic framework (PPy/AlFu MOF), which were synthesized via in situ oxidative polymerization with the aim of MOF functionalization to enhance its thermal stability and increase the specific surface area so that these nanocomposites may be used as potential adsorbents. The synthesized nanocomposites were characterized by various techniques, such as powder X-ray diffraction, scanning electron microscopy, and Fourier-transform infrared spectroscopy (FTIR). The successful functionalization of aluminum fumarate MOF was confirmed by FTIR, and the Brunauer–Emmett–Teller (BET) surface area of the PPy/MOF nanocomposite slightly increased from 795 to 809 m2/g. Thermogravimetric analysis data also show that the weight loss of the composite is up to 30% at temperatures up to 500 ℃. Remarkably, lead (50 ppm) sequestration using the composite was tested, and the atomic absorption spectrometry data demonstrate that PPy/MOF is a super-adsorbent for heavy metal ions. This work shows that the novel polymer–MOF composites are promising materials for the selective removal of lead from wastewater streams.

Microporous La-Metal-Organic Framework (MOF) with Large Surface Area

2014 ◽  
Vol 21 (7) ◽  
pp. 2789-2792 ◽  
Author(s):  
Souvik Pal ◽  
Asamanjoy Bhunia ◽  
Partha P. Jana ◽  
Subarna Dey ◽  
Jens Möllmer ◽  
...  
Keyword(s):  
Surface Area ◽  
Metal Organic Framework ◽  
Large Surface Area ◽  
Metal Organic ◽  
Organic Framework
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