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

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 Zn2+ 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 (σ = 13.3 mS cm−1 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−2) under dry conditions at 120 °C.

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

10.26434/chemrxiv.11708136 ◽

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

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

Chemical Science ◽

10.1039/d0sc01737j ◽

2020 ◽

Vol 11 (20) ◽

pp. 5175-5181 ◽

Cited By ~ 1

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.

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Proton Conductivity of Porous Zirconium‐Organic Frameworks Filled with Protic Ionic Liquid

Chemie Ingenieur Technik ◽

10.1002/cite.202100140 ◽

2021 ◽

Author(s):

Christopher F. Seidler ◽

Michael Wark

Keyword(s):

Ionic Liquid ◽

Proton Conductivity ◽

Protic Ionic Liquid

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Crystal structure of [NaZn(BTC)(H2O)4]·1.5H2O (BTC = benzene-1,3,5-tricarboxylate): a heterometallic coordination compound

Acta Crystallographica Section E Crystallographic Communications ◽

10.1107/s2056989015012001 ◽

2015 ◽

Vol 71 (7) ◽

pp. m143-m144 ◽

Cited By ~ 1

Author(s):

Min Ni ◽

Quanle Li ◽

Hao Chen ◽

Shengqing Li

Keyword(s):

Crystal Structure ◽

Ionic Liquid ◽

Coordination Polymer ◽

Hydrogen Bonds ◽

Tricarboxylic Acid ◽

The Other ◽

Water Molecules ◽

Asymmetric Unit ◽

Solvent Water ◽

Bridging Ligand

The title coordination polymer, poly[[μ-aqua-triaqua(μ3-benzene-1,3,5-tricarboxylato)sodiumzinc] sesquihydrate], {[NaZn(C9H3O6)(H2O)4]·1.5H2O}n, was obtained in ionic liquid microemulsion at room temperture by the reaction of benzene-1,3,5-tricarboxylic acid (H3BTC) with Zn(NO3)2·6H2O in the presence of NaOH. The asymmetric unit comprises two Na+ions (each located on an inversion centre), one Zn2+ion, one BTC ligand, four coordinating water molecules and two solvent water molecules, one of which is disordered about an inversion centre and shows half-occupation. The Zn2+cation is five-coordinated by two carboxylate O atoms from two different BTC ligands and three coordinating H2O molecules; the Zn—O bond lengths are in the range 1.975 (2)–2.058 (3) Å. The Na+cations are six-coordinated but have different arrangements of the ligands: one is bound to two carboxylate O atoms of two BTC ligands and four O atoms from four coordinating H2O molecules while the other is bound by four carboxylate O atoms from four BTC linkers and two O atoms of coordinating H2O molecules. The completely deprotonated BTC ligand acts as a bridging ligand binding the Zn2+atom and Na+ions, forming a layered structure extending parallel to (100). An intricate network of O—H...O hydrogen bonds is present within and between the layers.

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