Synthesis characterization and performance evaluation of ionic liquid immobilized SBA-15 /quaternised polysulfone composite membrane for alkaline fuel cell

Elumalai, Vijayakumar; Dharmalingam, Sangeetha

doi:10.1016/j.micromeso.2016.09.007

Cited by 45 publications

(15 citation statements)

References 60 publications

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“…Krathumkhet et al successfully distributed a modified ZSM‐5 zeolite in a SPS matrix as a filler with an enhancement recorded in the water uptake, proton conductivity, methanol permeability, and ion exchange capacity compared with the pure SPS. Immobilized silica (IL‐SBA‐15) incorporated into quaternized polysulfone (QPSU) achieved 278 mW cm −2 of maximum power density . Ozden used zirconium hydrogen phosphate (ZrP) as a filler incorporated into SPS to fabricate an efficient composite membrane as applied in DMFC.…”

Section: Additives In Different Types Of Membranesmentioning

confidence: 99%

“…Immobilized silica (IL-SBA-15) incorporated into quaternized polysulfone (QPSU) achieved 278 mW cm −2 of maximum power density. 129 Ozden 130 used zirconium hydrogen phosphate (ZrP) as a filler incorporated into SPS to fabricate an efficient composite membrane as applied in DMFC. The presence of the inorganic ZrP particles led to an improvement in high-temperature conductivity and the reinforcing effect due to the tensile properties.…”

Section: Sulfonated Polysulfonementioning

confidence: 99%

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Recent advances in additive‐enhanced polymer electrolyte membrane properties in fuel cell applications: An overview

2019

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Summary Additives such as fillers, cross‐linkers, and plasticizers have become increasingly important in the polymer nanocomposite production field, especially for enhancing the structural morphology, functional behavior, and final performance of nanocomposites in broad applications. The current work is an overview of the effects of additive substances such as fillers, cross‐linkers, and plasticizers in the polymer electrolyte membrane composites applied to fuel cells. A comparative review is conducted by categorizing fillers into several types, and the most popular cross‐linkers and plasticizers used in fuel cell membranes are included in this review. The highlighted properties include the proton conductivity, permeability, mechanical properties, thermal properties, crystallinity, and structure of additive‐modified nanocomposites. Furthermore, the challenges and future prospects in the additive field are discussed in Section 5.0. This review can provide a reference for researchers seeking specific substances that can be used to enhance nanocomposite properties, especially in membrane fuel cell applications.

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Section: Additives In Different Types Of Membranesmentioning

confidence: 99%

Section: Sulfonated Polysulfonementioning

confidence: 99%

Recent advances in additive‐enhanced polymer electrolyte membrane properties in fuel cell applications: An overview

2019

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“…Ion-exchange capacity is the vital property of ionomers and this property is enhanced with the addition of ion exchange materials [39]. The pure SPEEK membrane showed a IEC of 1.9 meq g −1 as a result of the contribution by sulfonic acid group (SO 3 H).…”

Section: Ion Exchange Capacity Water Uptake and Proton Conductivitymentioning

confidence: 99%

Preparation of tungstic acid functionalized titanium oxide nanotubes and its effect on proton exchange membrane fuel cell

et al. 2019

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Titanium oxide nano tubes (TNT) were synthesized by hydrothermal method and tungstic acid (ion exchange group) were covalently grafted on its surface. The synthesized tungstic acid functionalized TNT (W-TNT) were characterised by SEM, TEM, XRD analysis for the nano-tubular morphology and the successful grafting of tungstic acid group was confirmed by FTIR and solid state NMR techniques. Composite membranes of different weight percentage W-TNT (2%, 4%, 6% and 8%) and sulfonated poly ether ether ketone (SPEEK) were fabricated which resulted in high ion exchange properties. The prepared composite membranes were characterised by SEM, XRD, FTIR, water uptake, ion exchange capacity and proton conductivity to ensure the aptness of the membranes to be used as electrolyte in fuel cell application. From the studies it was found that SPEEK with 6% W-TNT showed optimum electrochemical properties. Upon testing this membrane in fuel cell as an electrolyte with carbon supported platinum anode and cathode electrodes, a maximum power density of 352 mW cm −2 was achieved at 80 °C. The presence of additional ion exchange groups (tungstic acid) and hollow nature of TNT lead to the improved performance than the plain membrane.

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“…Hence, the development of novel and efficient heterogeneous ionic liquid catalysts are in great demand. Recently, a large number of studies on the immobilization of homogenous ILs on diverse solid support materials have been reported . The inherent advantage of heterogeneous catalysis are the easily recovering and recycling catalysts, allowing low ILs loading in the transformations .…”

Section: Methodsmentioning

confidence: 99%

“…The inherent advantage of heterogeneous catalysis are the easily recovering and recycling catalysts, allowing low ILs loading in the transformations . Mesoporous materials have attracted increasing interests due to their large specific surface areas and pore sizes, high thermal and mechanical stabilities, and well‐defined surface properties . However, their weak surface acidity and hydrothermal stability limited their applications in chemical catalysis.…”

Section: Methodsmentioning

confidence: 99%

Novel and Effective Strategy of Multifunctional Titanium Incorporated Mesoporous Material Supported Ionic Liquid Mediated Reusable Hantzsch Reaction

et al. 2019

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Mesoporous material supported functionalized ionic liquids have been designed and synthesized, characterized and evaluated as novel heterogeneous catalysts for the Hantzsch reaction. The as-fabricated catalysts show good performance in the Hantzsch synthesis of 1,4-dihydropyridines under ambient conditions, especially the titanium incorporated mesoporous material supported ionic liquid Ti-SBA-15@IL-BF 4 , based on a synergetic effect of titanium site of mesoporous material carrier and the acidic sites of ionic liquid. In addition, the heterogeneous catalyst offers simple operation for recovery and the recycling test showed that it could be reused for five times without significant loss of catalytic activity.

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Synthesis characterization and performance evaluation of ionic liquid immobilized SBA-15 /quaternised polysulfone composite membrane for alkaline fuel cell

Cited by 45 publications

References 60 publications

Recent advances in additive‐enhanced polymer electrolyte membrane properties in fuel cell applications: An overview

Recent advances in additive‐enhanced polymer electrolyte membrane properties in fuel cell applications: An overview

Preparation of tungstic acid functionalized titanium oxide nanotubes and its effect on proton exchange membrane fuel cell

Novel and Effective Strategy of Multifunctional Titanium Incorporated Mesoporous Material Supported Ionic Liquid Mediated Reusable Hantzsch Reaction

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