scholarly journals Coordination polymer glass from a protic ionic liquid: proton conductivity and mechanical properties as an electrolyte

2020 ◽  
Vol 11 (20) ◽  
pp. 5175-5181 ◽  
Author(s):  
Tomohiro Ogawa ◽  
Kazuki Takahashi ◽  
Sanjog S. Nagarkar ◽  
Koji Ohara ◽  
You-lee Hong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ionic Liquid ◽  
Fuel Cell ◽  
Coordination Polymer ◽  
Solid Electrolyte ◽  
Proton Conductivity ◽  
Protic Ionic Liquid ◽  
Proton Conducting ◽  
Polymer Glass

A proton-conducting coordination polymer glass derived from a protic ionic liquid works as a moldable solid electrolyte and the anhydrous fuel cell showed I–V performance of 0.15 W cm−2 at 120 °C.

scholarly journals Protic Ionic Liquid-Derived Coordination Polymer Glass for Anhydrous Proton Conductor with Moldability

2020 ◽  
Author(s):  
Tomohiro Ogawa ◽  
Kazuki Takahashi ◽  
Sanjog S. Nagarkar ◽  
Koji Ohara ◽  
You-Lee Hong ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Coordination Polymer ◽  
Proton Conductivity ◽  
Network Formation ◽  
Proton Conductor ◽  
Open Circuit ◽  
Protic Ionic Liquid ◽  
Bridging Ligand ◽  
Glass Membrane ◽  
Dry Conditions

Herein, we focused on coordination polymer (CP) glass as a hybrid, soft electrolyte to meet these criteria. We applied a protic ionic liquid of which components work also as bridging ligand to construct CP structure with Zn<sup>2+</sup> ions. The structural analysis of the CP glass reveals that network formation results in enhancement of the properties of proton conductivity and viscoelasticity. The CP glass features a high anhydrous proton conductivity (<i>σ</i> = 13.3 mS cm<sup>−1</sup> at 120 °C) and high transport number of proton (0.94). Fabricated fuel cell with this CP glass membrane exhibits a high open circuit voltage (0.96 V) and a power density (0.15 W cm<sup>−2</sup>) under dry conditions at 120 °C.

scholarly journals Protic Ionic Liquid-Derived Coordination Polymer Glass for Anhydrous Proton Conductor with Moldability

2020 ◽  
Author(s):  
Tomohiro Ogawa ◽  
Kazuki Takahashi ◽  
Sanjog S. Nagarkar ◽  
Koji Ohara ◽  
You-Lee Hong ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Coordination Polymer ◽  
Proton Conductivity ◽  
Network Formation ◽  
Proton Conductor ◽  
Open Circuit ◽  
Protic Ionic Liquid ◽  
Bridging Ligand ◽  
Glass Membrane ◽  
Dry Conditions

Herein, we focused on coordination polymer (CP) glass as a hybrid, soft electrolyte to meet these criteria. We applied a protic ionic liquid of which components work also as bridging ligand to construct CP structure with Zn<sup>2+</sup> ions. The structural analysis of the CP glass reveals that network formation results in enhancement of the properties of proton conductivity and viscoelasticity. The CP glass features a high anhydrous proton conductivity (<i>σ</i> = 13.3 mS cm<sup>−1</sup> at 120 °C) and high transport number of proton (0.94). Fabricated fuel cell with this CP glass membrane exhibits a high open circuit voltage (0.96 V) and a power density (0.15 W cm<sup>−2</sup>) under dry conditions at 120 °C.

scholarly journals Proton-conductive coordination polymer glass for solid-state anhydrous proton batteries

2021 ◽  
Vol 12 (16) ◽  
pp. 5818-5824
Author(s):  
Nattapol Ma ◽  
Soracha Kosasang ◽  
Atsushi Yoshida ◽  
Satoshi Horike
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
Coordination Polymer ◽  
Proton Battery ◽  
Polymer Glass

Melt-quenched coordination polymer glass shows exclusive H+ conductivity (8.0 × 10−3 S cm−1 at 120 °C, anhydrous) and optimal mechanical properties (42.8 Pa s at 120 °C), enables the operation of an all-solid-state proton battery from RT to 110 °C.

Hybrid Proton-Conducting Membranes as Fuel Cells Solid Polyelectrolytes

2005 ◽  
Vol 3 (3) ◽  
pp. 308-311 ◽  
Author(s):  
J. Alberto Blázquez ◽  
David Mecerreyes ◽  
Oscar Miguel ◽  
Javier Rodriguez ◽  
Ione Cendoya ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Phosphotungstic Acid ◽  
Ionic Conductivities ◽  
Inorganic Membranes ◽  
Proton Conducting ◽  
Conducting Membranes

A series of novel hybrid organic-inorganic membranes based on sulfonated naphthalimides and phosphotungstic acid N-methylpyrrolidone were prepared from a NMP solution. These materials, composed of two proton-conducting components, have good mechanical properties, high ionic conductivities (10.5×10−2S∕cm at 80°C) and good fuel cell performances at 70°C.

scholarly journals High degree sulfonated poly(ether ether ketone) blend with polyvinylidene fluoride as a potential proton-conducting membrane fuel cell

2019 ◽  
Vol 32 (1) ◽  
pp. 103-115 ◽  
Author(s):  
Syarifah Noor Syakiylla Sayed Daud ◽  
Muhammad Noorul Anam Mohd Norddin ◽  
Juhana Jaafar ◽  
Rubita Sudirman
Keyword(s):  
Mechanical Properties ◽  
Fuel Cell ◽  
Polyvinylidene Fluoride ◽  
Proton Conducting ◽  
Proton Conducting Membrane ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Speek Membrane ◽  
Sulfonated Poly

Sulfonated poly(ether ether ketone) (sPEEK) membrane is a promising proton-conducting membrane for fuel cell. However, the performance and lifetime of sPEEK membrane depend on the degree of sulfonation (DS). High DS of sPEEK increases the performance, but the mechanical properties could deteriorate progressively which affect its lifetime. Thus, this study investigated the effect of adding polyvinylidene fluoride (PVDF) into high DS (80%) of sPEEK through solution blending method toward its physicochemical properties and morphology structures. The PVDF concentration was varied to 5, 10, 15, and 20 wt% relative to the sPEEK content. The existence of hydrophobic PVDF in 80% sPEEK improved the mechanical properties where the water uptake and swelling degree of membrane decreased, whereas the tensile strength increased. The sPEEK/PVDF 15 exhibited the highest proton conductivity (46.23 mS cm−1) at 80°C. Incorporating PVDF into high DS of sPEEK enhanced the mechanical properties which can be used as a proton-conducting membrane for fuel cell that may improve the performance and prolong the lifetime of the cell.

Ammonium-based protic ionic liquid doped Nafion membranes as anhydrous fuel cell electrolytes

2015 ◽  
Vol 3 (24) ◽  
pp. 12905-12912 ◽  
Author(s):  
Anurag Prakash Sunda
Keyword(s):  
Ionic Liquid ◽  
Fuel Cell ◽  
Interfacial Structure ◽  
Protic Ionic Liquid ◽  
Nafion Membranes ◽  
Structure Correlation ◽  
Cell Electrolytes ◽  
Fuel Cell Electrolytes

The interfacial structure correlation of cation interactions with sulfonate groups (of anion or Nafion) in a [dema][TfO] doped Nafion composite is competitive and equivalent.

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