H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; and CH&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt; Sorption on Cu-BTC Metal Organic Frameworks at Pressures up to 15 MPa and Temperatures between 273 and 318 K

Gensterblum, Yves

doi:10.4236/jsemat.2011.12004

Cited by 7 publications

(5 citation statements)

References 25 publications

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“…[9][10][11] Its potentialities for gas storage, in particular for hydrogen and methane, are relevant in the field of alternative and renewable energies. [12][13][14][15][16] As catalyst, HKUST-1 is very promising because its metal sites are strongly active in many reactions and because they can be easily accessed from the surface of the large pores of the framework by a large variety of interesting molecules. 17 Recently, thin films of HKUST-1 on opportune substrates have been successfully used in photovoltaic applications.…”

Section: Introductionmentioning

confidence: 99%

“…Thanks to the great affinity of its metallic group with NH 3 and CO 2 molecules, it can be used to remove such toxic gases, ammonia , and carbon dioxide, , from contaminated air and flue gases. In energetic and environmental fields, HKUST-1 can be used for separation of carbon dioxide from hydrogen, methane, nitrogen, and oxygen to purify these gases and to decrease the emission of greenhouse gases. − Its potentialities for gas storage, in particular for hydrogen and methane, are relevant in the field of alternative and renewable energies. − As catalyst, HKUST-1 is very promising because its metal sites are strongly active in many reactions and because they can be easily accessed from the surface of the large pores of the framework by a large variety of interesting molecules . Recently, thin films of HKUST-1 on opportune substrates have been successfully used in photovoltaic applications .…”

Section: Introductionmentioning

confidence: 99%

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Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level

et al. 2016

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HKUST-1 is a metal–organic framework (MOF) which plays a significant role in both applicative and basic fields of research, thanks to its outstanding properties of adsorption and catalysis but also because it is a reference material for the study of many general properties of MOFs. Its metallic group comprises a pair of Cu2+ ions chelated by four carboxylate bridges, forming a structure known as paddle-wheel unit, which is the heart of the material. However, previous studies have well established that the paddle-wheel is incline to hydrolysis. In fact, the prolonged exposure of the material to moisture promotes the hydrolysis of Cu–O bonds in the paddle-wheels, so breaking the crystalline network. The main objective of the present experimental investigation is the determination of the details of the structural defects induced by this process in the crystal, and it has been successfully pursued by coupling the electron paramagnetic resonance spectroscopy with other more commonly considered techniques, such as X-ray diffraction, surface area estimation, and scanning electron microscopy. Thanks to this original approach we have recognized three stages of the process of decomposition of HKUST-1, and we have unveiled the details of the corresponding equilibrium structures of the paddle-wheels at the atomic scale level

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level

et al. 2016

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“…Thanks to its high surface area and large pore volume, HKUST-1 is a promising material for a wide range of applications, among which catalysis, drug delivery, gas storage, and separation, − are of major importance. Indeed, HKUST-1 can be used to purify hydrogen, methane, nitrogen, or oxygen from carbon dioxide, contributing to decrease the greenhouse gases, − or remove toxic gases such as ammonia from contaminated air. , In the field of renewable energies, it can be used to store hydrogen or methane. − Before MOFs can be actually used for many of the described applications, a challenging obstacle have to be overcome. Indeed, nowadays, the conventional synthesis processes produce HKUST-1 (and MOFs in general) in the form of powder with low density.…”

Section: Introductionmentioning

confidence: 99%

Unveiled the Source of the Structural Instability of HKUST-1 Powders upon Mechanical Compaction: Definition of a Fully Preserving Tableting Method

et al. 2018

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Metal–organic frameworks (MOFs) are getting closer to finally being used in commercial applications. In order to maximize their packing density, mechanical strength, stability in reactive environments, and many other properties, the compaction of MOF powders is a fundamental step for the application field of research of these extraordinary materials. In particular, HKUST-1 is among the most promising and studied MOF. Contrary to what reported so far in the literature, here we prove that the tableting of HKUST-1 powders without any damage of the lattice is possible and easy to get. For the first time, this kind of investigation has been performed exploiting its peculiar magnetic properties with the aid of electron paramagnetic resonance spectroscopy. Indeed, they have allowed us to explore in detail all the smallest changes induced in the paramagnetic paddle-wheel units by the application of the mechanical pressure on the material. This original approach has permitted us to unveil the main source of structural instability of HKUST-1 during compaction, that is, the water molecules adsorbed by the powdered sample before tableting and finally to establish a proper compaction protocol. Our conclusions are also fully supported by the results obtained with powder X-ray diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis, water sorption isotherms, and surface area estimation with the Brunauer–Emmett–Teller method, which prove that the tablet of HKUST-1 obtained by this new protocol actually preserves the crystal structure and porosity of the pristine powders. A morphological characterization has also been conducted with a combined use of optical and atomic force microscopies.

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“…HKUST-1 is one of the MOFs material that are widely studied due to its structural stability and various potential applications, such as in catalysis [14], gas separation [18] and gas storage [19,20]. The specific advantage of HKUST-1 is having structural features such as an open metal coordination sites [3].…”

Section: Structural Study Of Hkust-1mentioning

confidence: 99%

Solvothermal and electrochemical synthetic method of HKUST-1 and its methane storage capacity

Lestari

Adreane

Purnawan

et al. 2016

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract.A comparison synthetic strategy of Metal-Organic Frameworks, namely, Hongkong University of Techhnology-1 {HKUST-1[Cu 3 (BTC)] 2 } (BTC = 1,3,5-benzene-tri-carboxylate) through solvothermal and electrochemical method in ethanol:water (1:1) has been conducted. The obtained material was analyzed using powder X-ray diffraction, Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), Thermo-Gravimetric Analysis (TGA) and Surface Area Analysis (SAA). While the voltage in the electrochemical method are varied, ranging from 12 to 15 Volt. The results show that at 15 V the texture of the material has the best degree of crystallinity and comparable with solvothermal product. This indicated from XRD data and supported by the SEM image to view the morphology. The thermal stability of the synthesized compounds is up to 320 °C. The shape of the nitrogen sorption isotherm of the compound corresponds to type I of the IUPAC adsorption isotherm classification for microporous materials with BET surface area of 629.2 and 324.3 m²/g (for solvothermal and electrochemical product respectively) and promising for gas storage application. Herein, the methane storage capacities of these compounds are also tested.

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H<sub>2</sub> and CH<sub>4</sub> Sorption on Cu-BTC Metal Organic Frameworks at Pressures up to 15 MPa and Temperatures between 273 and 318 K

Abstract: ABSTRACT

Cited by 7 publications

References 25 publications

Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level

Decomposition Process of Carboxylate MOF HKUST-1 Unveiled at the Atomic Scale Level

Unveiled the Source of the Structural Instability of HKUST-1 Powders upon Mechanical Compaction: Definition of a Fully Preserving Tableting Method

Solvothermal and electrochemical synthetic method of HKUST-1 and its methane storage capacity

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