Metallomesogens as stationary phases for the separation of phenols by gas chromatography

Liu, Chuen‐Ying; Hu, Cho-Chun; Chen, Jien-Lian; Liu, Kung-Tien

doi:10.1016/s0003-2670(98)00857-5

Cited by 17 publications

(15 citation statements)

References 21 publications

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“…Besides, the synergistic effect and electron transfers between the different TMD components also contribute to the high HER activity . Moreover, the HER activity of these TMD/TMD heterostructures can be further promoted by hybridizing with CNT, RGO, CC, etc., which will not only further increase the number of active sites and the electrical conductivity but also enable rapid mass transportation …”

Section: Heterostructured Catalysts For Hermentioning

confidence: 99%

Heterostructures for Electrochemical Hydrogen Evolution Reaction: A Review

Zhao

Rui

Dou

et al. 2018

Adv Funct Materials

1,072

708

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Developing sustainable and renewable energy sources along with efficient energy storage and conversion technologies is vital to address environmental and energy challenges. Electrochemical water splitting coupling with gridscale renewable energy harvesting technologies is becoming one of the most promising approaches. Besides, hydrogen with the highest mass-energy density of any fuel is regarded as the ultimate clean energy carrier. The realization of practical water splitting depends heavily on the development of low-cost, highly active, and durable catalysts for hydrogen evolution reactions (HERs) and oxygen evolution reactions (OERs). Recently, heterostructured catalysts, which are generally composed of electrochemical active materials and various functional additives, have demonstrated extraordinary electrocatalytic performance toward HER and OER, and particularly a number of precious-metalfree heterostructures delivered comparable activity with precious-metal-based catalysts. Herein, an overview is presented of recent research progress on heterostructured HER catalysts. It starts with summarizing the fundamentals of HER and approaches for evaluating HER activity. Then, the design and synthesis of heterostructures, electrochemical performance, and the related mechanisms for performance enhancement are discussed. Finally, the future opportunities and challenges are highlighted for the development of heterostructured HER catalysts from the points of view of both fundamental understandings and practical applications.

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Section: Heterostructured Catalysts For Hermentioning

confidence: 99%

Heterostructures for Electrochemical Hydrogen Evolution Reaction: A Review

Zhao

Rui

Dou

et al. 2018

Adv Funct Materials

1,072

708

View full text Add to dashboard Cite

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“…The supporting substrate should be conductive with high specific surface area and great mechanical stability. Owing to the high conductivity and high surface area, carbon nanomaterials such as mesoporous carbon, carbon nanotubes, and graphene are widely utilized as supports for metal oxides [20,[25][26][27] . Furthermore, it has been demonstrated that nanorod shaped materials which mainly expose (1 1 0) crystal planes, have high surface to volume ratio [28,29] and are considered as materials with highly mobilized facets for methane combustion, CO oxidation etc.…”

Section: Introductionmentioning

confidence: 99%

Environment friendly hydrothermal synthesis of carbon–Co3O4 nanorods composite as an efficient catalyst for oxygen evolution reaction

Jadhav

Bandal

Tamboli

et al. 2017

Journal of Energy Chemistry

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“…[10]. Liu and co-workers reported a series of application in GC stationary phases: nickel-, zinc-thiolate, and copper-carboxylate complexes showing, respectively, calamitic and discotic mesophases were designed as the coating materials on the Chromosorb W for packing columns [11][12][13] and as the active moieties introducing into the polysiloxane backbone for wall-coated capillaries [13][14][15][16]. In general, the specified mesomorphic phases manifest the separation of not only geometric isomers due to the benefits of the orientated ordering of liquid crystal molecules but also analytes with electron-donating ability due to the ligandexchange interactions committed to the coordination centers of metal ions.…”

Section: Introductionmentioning

confidence: 99%

Metallomesogenic stationary phase for open‐tubular capillary electrochromatography

Chen

2006

Electrophoresis

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A synthetic coppermesogenic polymer is prepared and then covalently bonded to the siloxane-based deactivated column as the stationary phases of open-tubular CEC with essentially high phase ratio. The EOF generated from the modified phase is surveyed through conventional aqueous buffers and hydroorganic mobile phases. Zeta potentials, which are computed from the EOF data and the ratio of dielectric constant to viscosity, are plotted as a function of pH, ionic molarity, and compositional range. These plots responsible for the electroosmotic characteristic of the bonded phases are found to be like those of bare fused-silica or deactivated columns through decreasing or increasing the ACN content in the mobile phase, respectively. This two-phase characteristic is basically derived from the polymeric configuration with carboxylato ligands attached onto the polysiloxane backbone. Phthalates and amino acids are suitable probes to examine the two phenomena, more-polar and less-polar mediums, respectively, and to judge whether the chromatographic retention is the major source of separation mechanism. With the mixing modes of Lewis acid-base interaction, dispersive force, and shape discrimination, the chromatographic partition adequately accomplishes the uneasily resolved separations by only CZE mode, although the electrophoretic migration is truly somewhat involved.

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Metallomesogens as stationary phases for the separation of phenols by gas chromatography

Cited by 17 publications

References 21 publications

Heterostructures for Electrochemical Hydrogen Evolution Reaction: A Review

Heterostructures for Electrochemical Hydrogen Evolution Reaction: A Review

Environment friendly hydrothermal synthesis of carbon–Co3O4 nanorods composite as an efficient catalyst for oxygen evolution reaction

Metallomesogenic stationary phase for open‐tubular capillary electrochromatography

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