Cell performance of DMFC fabricated with H+-ETS-10/Nafion composite membrane

Yang, Haoran; Lee, J.Y.; Jeong, Jong Youn; Na, Yang; Kim, W.J.

doi:10.1016/j.micromeso.2011.03.003

Cited by 9 publications

(5 citation statements)

References 20 publications

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“…This also indicated that the dried reactants do not react mechanochemically at allin other words, water is essential also for initiating the formation of M. confirmed by the gas adsorption method. [32][33][34][35] In a higher relative pressure region, small differences in the amounts of adsorption were observed. This may be attributed to the differences in their particle sizes, which affords the interstitial pores for adsorption between microcrystalline particles.…”

Section: Humidity Dependency On the Transitionsmentioning

confidence: 99%

Systematic mechanochemical preparation of a series of coordination pillared layer frameworks

2012

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A detailed investigation into the mechanochemical synthesis of coordination pillared-layer frameworks (CPLs), particularly CPL-1, was carried out. In the case of CPL-1, a two-step reaction was observed (from the starting reactants to the final product). In the conventional solution process, no intermediate state was detected. We found that moisture is essential in both the reaction steps. After the final product was washed, it showed the same sorption ability as the product prepared from a solution process. We further demonstrated the systematic preparation of other CPLs (CPL-2, 3, 4, 5, and 15) by the mechanochemical method under humid conditions, even though some of the ligands are almost insoluble in water. Our findings indicate that mechanochemical synthesis is a promising alternative method for the systematic and large-scale production of PCPs. Its advantages include the following: reduced pollution, low cost, simplicity of the process, ease of handling, efficient reaction rate, selectivity, and the issue of low solubility of reactants is overcome.

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Section: Humidity Dependency On the Transitionsmentioning

confidence: 99%

Systematic mechanochemical preparation of a series of coordination pillared layer frameworks

2012

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“…To fabricate the materials which are equipped with the structure mentioned above, numerous synthetic approaches have been studied including hydrothermal or solvothermal synthesis, microwave‐assisted synthesis, sonochemical synthesis, electrochemical synthesis, and mechanochemical synthesis . Among them, hydrothermal or solvothermal synthesis is the most common route.…”

Section: Synthetic Approaches For Mofsmentioning

confidence: 99%

MOFs‐Based Heterogeneous Catalysts: New Opportunities for Energy‐Related CO₂ Conversion

Lei

Xue

Chen

et al. 2018

Advanced Energy Materials

168

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www.advancedsciencenews.comreaction is more unfavorable. [22,23] Comparing to the researches on artificial H 2 production, the knowledge referring to efficient and selective reduction of CO 2 to energy-rich molecules is urgent to be updated. CO 2 conversion is often traced back to 1972 that reported by Honda and Fujishima with using inorganic photocatalysts TiO 2 . [24] As the capture of CO 2 has already been studied in metal-organic frameworks (MOFs), [25][26][27][28] it has recently been studied for their use as catalysts for the reduction of CO 2 into high-value chemicals. [14,29] MOFs hold great promise for applications in the field of CO 2 reduction, which can act directly as the catalysts or as components to promote CO 2 reduction in a hybrid catalytic system. The interior of MOFs can be designed to have open metal sites, specific heteroatoms, functionalized organic ligand, other building unit interactions, hydrophobicity, defects, porosity, and embedded nanoscale metal catalysts which is crucial for the development of better CO 2 reduction performance MOFs. [30][31][32] Due to the poor electron conductivity of MOFs, [33,34] and the inaccessibility of all the catalytic active sites to the reactants, the stability of MOFs in water and under UV light irradiation need to be further improved. We believe that a comprehensive and up-to-date review summarizing the recent applications of MOFs for CO 2 reduction will contribute to improve theoretical understanding of this field. In order to make a better achievement, it is necessary to use the MOF to build more complex materials to address CO 2 capacity and reduction ability together in one material. Future MOFs materials for CO 2 reduction should be economical and environmental friendly. The keys for promoting catalysis include structural defects in the MOFs, open metal sites from metal clusters, Lewis acid sites from the metal cluster and organometallic linker, and cocatalyst functionalized MOFs.Several reviews focusing on MOFs for CO 2 conversion have been recently reviewed and discussed. Dhakshinamoorthy et al. pointed out that photoexcitation of the light absorbing units in MOFs often generates a ligand-to-metal charge-separation state that can result in photocatalytic activity. Maina et al. discussed the corelationship between the properties of MOF materials including their CO 2 reduction catalytic performance under different reaction conditions. Li and co-workers have summarized the recent applications of MOFs for photocatalytic CO 2 reduction, in which MOFs can act as the photocatalysts for CO 2 reduction or as components in a hybrid photocatalytic system to promote CO 2 reduction. Yaghi and co-workers also pointed out that the challenge in developing catalysts for CO 2 photo-or electroreduction is rooted in the interplay between selectivity, activity, and efficiency. [35][36][37][38] Synthetic Approaches for MOFsMOFs, also called porous coordination polymers, are extended framework with open structures constructed from metal ions and organic ligands linked...

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“…20 wt.-% at room temperature, [27] while the protein molecules of cytochrome c were majorly embedded on the surface region of ZIF-8 and the synthesized protein/ZIF-8 composite displays high biological activities. [29] Notably, there is a lack of reports on solid-solid ball milling reactions to the encapsulation of drug molecules into a MOF framework, [31,32] despite the fact that mechanochemistry have appeared as a successful tool for the preparation of molecular cages, [33] hybrid perovskites for optoelectronic applications, [34][35][36] MOFs [37][38][39][40][41][42][43][44] as well as encapsulation of inorganic nanoparticles, [45][46][47] dyes [48] or enzymes [49] in MOF matrices.…”

Section: Introductionmentioning

confidence: 99%

Development of an SBU‐Based Mechanochemical Approach for Drug‐Loaded MOFs

et al. 2020

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Metal–organic frameworks (MOFs) have attracted a great deal of attention in the areas of biomedicine due to their versatile porous structures and are potentially ideal vehicles for loading bioactive molecules and controlling the release of small molecules. Current approaches for encapsulation of drug molecules in MOFs are usually based on multistep wet processes. We report here a novel simple and rapid solid‐state process that combines the mechanosynthesis of HKUST‐1 and the encapsulation of ibuprofen (IBU‐H), as a model drug molecule, in a one‐pot reaction involving a pre‐assembled [Cu2(IBU)4]·2DMF cluster. The ibuprofen‐loaded MOF composite (with 58.5 wt.‐% loading capacity) was also studied as a drug delivery carrier system in phosphate buffered saline (PBS) solution at 37 °C.

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Cell performance of DMFC fabricated with H+-ETS-10/Nafion composite membrane

Cited by 9 publications

References 20 publications

Systematic mechanochemical preparation of a series of coordination pillared layer frameworks

Systematic mechanochemical preparation of a series of coordination pillared layer frameworks

MOFs‐Based Heterogeneous Catalysts: New Opportunities for Energy‐Related CO₂ Conversion

Development of an SBU‐Based Mechanochemical Approach for Drug‐Loaded MOFs

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Cell performance of DMFC fabricated with H+-ETS-10/Nafion composite membrane

Cited by 9 publications

References 20 publications

Systematic mechanochemical preparation of a series of coordination pillared layer frameworks

Systematic mechanochemical preparation of a series of coordination pillared layer frameworks

MOFs‐Based Heterogeneous Catalysts: New Opportunities for Energy‐Related CO2 Conversion

Development of an SBU‐Based Mechanochemical Approach for Drug‐Loaded MOFs

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MOFs‐Based Heterogeneous Catalysts: New Opportunities for Energy‐Related CO₂ Conversion