MOF-derived Cu/nanoporous carbon composite and its application for electro-catalysis of hydrogen evolution reaction

Raoof, Jahan Bakhsh; Hosseini, Sayed Reza; Ojani, Reza; Mandegarzad, Sakineh

doi:10.1016/j.energy.2015.08.013

Cited by 136 publications

(73 citation statements)

References 30 publications

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“…The main MOF-199 diffraction peaks (at 2θ = 6.7, 9.4, 11.6, 13.4, 17.4, 19.0, and 29.4) confirmed its structure4950. Likewise, the MOF-5 peaks are also in excellent agreement with the literature using a similar synthesis procedure3.…”

Section: Resultssupporting

confidence: 82%

Metal organic frameworks as sorption media for volatile and semi-volatile organic compounds at ambient conditions

Vellingiri

Szulejko

Kumar

et al. 2016

Sci Rep

139

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In this research, we investigated the sorptive behavior of a mixture of 14 volatile and semi-volatile organic compounds (four aromatic hydrocarbons (benzene, toluene, p-xylene, and styrene), six C2-C5 volatile fatty acids (VFAs), two phenols, and two indoles) against three metal-organic frameworks (MOFs), i.e., MOF-5, Eu-MOF, and MOF-199 at 5 to 10 mPa VOC partial pressures (25 °C). The selected MOFs exhibited the strongest affinity for semi-volatile (polar) VOC molecules (skatole), whereas the weakest affinity toward was volatile (non-polar) VOC molecules (i.e., benzene). Our experimental results were also supported through simulation analysis in which polar molecules were bound most strongly to MOF-199, reflecting the presence of strong interactions of Cu2+ with polar VOCs. In addition, the performance of selected MOFs was compared to three well-known commercial sorbents (Tenax TA, Carbopack X, and Carboxen 1000) under the same conditions. The estimated equilibrium adsorption capacity (mg.g−1) for the all target VOCs was in the order of; MOF-199 (71.7) >Carboxen-1000 (68.4) >Eu-MOF (27.9) >Carbopack X (24.3) >MOF-5 (12.7) >Tenax TA (10.6). Hopefully, outcome of this study are expected to open a new corridor to expand the practical application of MOFs for the treatment diverse VOC mixtures.

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Section: Resultssupporting

confidence: 82%

Metal organic frameworks as sorption media for volatile and semi-volatile organic compounds at ambient conditions

Vellingiri

Szulejko

Kumar

et al. 2016

Sci Rep

139

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“…For GO, densely packed graphene sheets can be seen. For MOF‐199, octahedral crystals are clearly visible, consistent with the previous report of Raoof . The structures of the composites are clearly different to those of the parent materials.…”

Section: Resultssupporting

confidence: 88%

“…According to the mechanism for the formation of the composites, new pores are created as a result of the interactions between GO and MOF‐199. In these new pores, the dispersive forces are stronger than those in MOF‐199 because of the dense arrays of atoms in the GO . We also found that the adsorption performances were consistent with the microporous surface areas (Table ).…”

Section: Resultssupporting

confidence: 68%

Modification of a Copper‐Based Metal–Organic Framework with Graphene Oxide for the Removal of Sulfur Compounds

et al. 2018

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Copper‐based metal–organic framework/graphene oxide (MOF‐199/GO) composites were prepared under hydrothermal conditions. The adsorption performances of the composites for CH3SCH3 and CH3CH2SH removal under ambient conditions were evaluated. The materials were characterized by XRD, FTIR spectroscopy, nitrogen adsorption/desorption, scanning electron microscopy (SEM), and X‐ray photoelectron spectroscopy (XPS). The composites exhibit a unique layered structure. MGO‐1 with 5 % GO shows a higher surface area than that of pristine MOF‐199 owing to the creation of new pores between the MOF‐199 and GO units. MGO‐1 has the best adsorption capacities for CH3SCH3 and CH3CH2SH, and the uptake reaches 6.12 and 4.31 %, respectively, because of the increased surface area and dispersive forces in the new pores. During the adsorption of CH3CH2SH, a chemical reaction results in the destruction of the MOF structure. However, reversible chemisorption was found for CH3SCH3 removal, as testified by fixed‐bed regeneration. Multiple adsorption/regeneration cycles show that the MGO composites are promising adsorbents for CH3SCH3 removal.

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“…MIL-101-NH 2 , [88] MIL-53, [89] MOF-100, [90] MOF-199, [91] MOF-74, [92] Ni-BTC, [87,93,94] and other Ni-, [95][96][97] Co-, [98][99][100][101] Mo-, [97] Al-based [102,103] monometallic and bimetallic MOFs are reported as precursors for the synthesis of various catalysts with specifically designed chemical components and structures. MIL-101-NH 2 , [88] MIL-53, [89] MOF-100, [90] MOF-199, [91] MOF-74, [92] Ni-BTC, [87,93,94] and other Ni-, [95][96][97] Co-, [98][99][100][101] Mo-, [97] Al-based [102,103] monometallic and bimetallic MOFs are reported as precursors for the synthesis of various catalysts with specifically designed chemical components and structures.…”

Section: Fundamentals and Characterizationsmentioning

confidence: 99%

Metal–Organic Framework Based Catalysts for Hydrogen Evolution

Zhu

Zou

2018

Advanced Energy Materials

383

199

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society is still heavily relying on chemical fuels. Therefore, the essential and realistic approaches to environmental and energy issues remain to be the exploration of clean and sustainable energy sources, in order to meet the ever-increasing energy demand. Thanks to its high energy density and environmental friendliness, hydrogen fuel comes into play as a muchanticipated new energy carrier, which is under intensive studies in the academic field. [4] Furthermore, we are already in the new era witnessing the transformation of hydrogen-powered technologies from science fictions to realities. UK is already in the process of replacing their traditional diesel-powered double decker buses with the hydrogen-powered version, which aims to phase out the former by 2018. [5] China announced its world's first hydrogen-powered tram, which was put into business service in the latter half of 2017. [6] Mercedes-Benz had even started its development of personal hydrogen-powered car, and Toyota had commercialized its hydrogen fuel-cell car branded "Mirai." [7,8] However, one critical issue remains to be the conflict between the hydrogen production efficiency and the demand for the mass distribution of hydrogen-powered technologies.Current industrial hydrogen production methods include coal gasification (followed by water-gas shift reaction), steam reforming, cryogenic distillation, and water splitting. [9] Coal gasification and steam reforming utilize the reaction between conventional fossil fuels and water to produce syngas (primarily CO and H 2 ) or CO 2 and H 2 mixture. However, both reactions require high temperatures (can be over 1000 °C) and pressures, which is an energy intensive process and has strict requirements on infrastructures. [10] The reaction products also need to be further separated to obtain relatively high-concentration of hydrogen. Cryogenic distillation takes the advantage of difference in gas boiling points, which can be applied to separate hydrogen from other gas components in the former two hydrogen production methods. However, cryogenic distillation is also an energy intensive process for low-temperature gas liquification. In comparison, hydrogen evolution reaction (HER) through water splitting is much-favored because of the following three prominent advantages: 1) Water splitting can be carried out at room temperature and ambient pressure, which is less restricted by infrastructure requirements. 2) Oxygen and hydrogen can be produced separately or selectively, which eliminate the need for gas separation. 3) Both the hydrogen source Highly efficient hydrogen evolution reactions (HERs) will determine the mass distributions of hydrogen-powered clean technologies in the future. Metal-organic frameworks (MOFs) are emerging as a class of crystalline porous materials. Along with their derivatives, MOFs have recently been under intense study for their applications in various hydrogen production techniques. MOF-based materials possess unique advantages, such as high specific surface area, crystalline porous str...

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MOF-derived Cu/nanoporous carbon composite and its application for electro-catalysis of hydrogen evolution reaction

Cited by 136 publications

References 30 publications

Metal organic frameworks as sorption media for volatile and semi-volatile organic compounds at ambient conditions

Metal organic frameworks as sorption media for volatile and semi-volatile organic compounds at ambient conditions

Modification of a Copper‐Based Metal–Organic Framework with Graphene Oxide for the Removal of Sulfur Compounds

Metal–Organic Framework Based Catalysts for Hydrogen Evolution

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