scholarly journals Arrangement of water molecules and high proton conductivity of tunnel structure phosphates, KMg1−xH2x(PO3)3·yH2O

RSC Advances ◽  
2020 ◽  
Vol 10 (13) ◽  
pp. 7803-7811 ◽  
Author(s):  
Yasuaki Matsuda ◽  
Kousei Funakoshi ◽  
Ryosuke Sebe ◽  
Genki Kobayashi ◽  
Masao Yonemura ◽  
...  
Keyword(s):  
Proton Conductivity ◽  
Gas Flow ◽  
Proton Conductor ◽  
Water Molecules ◽  
Tunnel Structure ◽  
Fast Proton ◽  
High Proton Conductivity ◽  
High Proton ◽  
Ar Gas

A fast proton conductor exhibiting high proton conductivity of 7.0 × 10−3 S cm−1 at 200 °C in a dry Ar gas flow was developed by designing water chains in a rigid tunnel framework.

High proton conductivity in a nickel(ii) complex and its hybrid membrane

2019 ◽  
Vol 48 (6) ◽  
pp. 2190-2196 ◽  
Author(s):  
Shuai-Liang Yang ◽  
Yue-Ying Yuan ◽  
Fei Ren ◽  
Chen-Xi Zhang ◽  
Qing-Lun Wang
Keyword(s):  
Hydrogen Bond ◽  
Proton Conductivity ◽  
Hybrid Membrane ◽  
Water Molecules ◽  
Hybrid Membranes ◽  
High Proton Conductivity ◽  
High Proton ◽  
Hydrogen Bond Networks

A novel 2D nickel(ii) complex (1) has been successfully synthesized using a 2,2′-bipyridyl, polycarboxylsulfonate ligand H4SBTC and Ni2+ ions. Owing to the presence of abundant water molecules, hydrogen bond networks and other protons, 1 and its hybrid membranes demonstrate high proton conductivity.

scholarly journals High proton conductivity in cyanide-bridged metal–organic frameworks: understanding the role of water

2015 ◽  
Vol 3 (44) ◽  
pp. 22347-22352 ◽  
Author(s):  
Yuan Gao ◽  
Richard Broersen ◽  
Wouter Hageman ◽  
Ning Yan ◽  
Marjo C. Mittelmeijer-Hazeleger ◽  
...  
Keyword(s):  
Proton Conductivity ◽  
Metal Organic Frameworks ◽  
Water Molecules ◽  
High Proton Conductivity ◽  
Lattice Water ◽  
High Proton ◽  
Metal Organic

Hop hop hop: the proton conductivity of the [Nd(mpca)2Nd(H2O)6Mo(CN)8]·nH2O is enabled by lattice water molecules in its channels.

scholarly journals A functional mesoporous ionic crystal based on polyoxometalate

2016 ◽  
Vol 45 (7) ◽  
pp. 2805-2809 ◽  
Author(s):  
Ryosuke Kawahara ◽  
Kazuma Niinomi ◽  
Junko N. Kondo ◽  
Mitsuhiro Hibino ◽  
Noritaka Mizuno ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Proton Conductivity ◽  
Ionic Crystal ◽  
Water Molecules ◽  
High Proton Conductivity ◽  
One Dimensional ◽  
High Proton ◽  
Cyano Groups

A mesoporous ionic crystal is synthesized with a polyoxometalate and a macrocation with polar cyano groups. The compound possesses one-dimensional mesopores and shows high proton conductivity and catalytic activity, which are due to the water molecules in the mesopores.

scholarly journals Synthesis and performance of solid proton conductor molybdovanadosilicic acid

RSC Advances ◽  
2018 ◽  
Vol 8 (25) ◽  
pp. 13984-13988 ◽  
Author(s):  
Zhirong Xie ◽  
Han Wu ◽  
Qingyin Wu ◽  
Limei Ai
Keyword(s):  
Proton Conductivity ◽  
Proton Conductor ◽  
High Proton Conductivity ◽  
Keggin Type ◽  
High Proton ◽  
And Performance

A novel Keggin-type proton conductor shows high proton conductivity, reaching 5.70 × 10−3 S cm−1 at room conditions.

scholarly journals Fe(iii) phytate metallogel as a prototype anhydrous, intermediate temperature proton conductor

2015 ◽  
Vol 6 (1) ◽  
pp. 603-607 ◽  
Author(s):  
Harshitha Barike Aiyappa ◽  
Subhadeep Saha ◽  
Pritish Wadge ◽  
Rahul Banerjee ◽  
Sreekumar Kurungot
Keyword(s):  
Fuel Cell ◽  
Solid Electrolyte ◽  
Phytic Acid ◽  
Proton Conductivity ◽  
Proton Conductor ◽  
Intermediate Temperature ◽  
Iron Nitrate ◽  
High Proton Conductivity ◽  
High Proton ◽  
Fuel Cell Operation

Protogenic phytic acid is immobilized by its gelation with iron nitrate in DMF. The resulting pelletized xerogel is observed to show a high proton conductivity of 2.4 × 10−2 S cm−1 at 120 °C and is tried as solid electrolyte for dry H2/O2 fuel cell operation.

Fast Proton Conductors from Inorganic-Organic Composites: II. Amorphous Phosphate-PTFE and ZrP-PTFE Composites

1999 ◽  
Vol 600 ◽  
Author(s):  
Yong-Il Park ◽  
Jae-Dong Kim ◽  
Masayuki Nagai
Keyword(s):  
Heat Treatment ◽  
Proton Conductivity ◽  
Zirconium Phosphate ◽  
Treatment Temperature ◽  
Proton Conductors ◽  
Fast Proton ◽  
High Proton Conductivity ◽  
High Proton ◽  
Amorphous Phosphate ◽  
Ptfe Composites

AbstractA high proton-conductivity was observed in the composite of amorphous phosphate and polytetafluoroethylene (PTFE). Incorporation of amorphous phosphate into PTFE emulsion caused a large increase of conductivity to about 4×10−2S/cm at 23°C. However, the conductivity decreased with increasing heat-treatment temperature, and the fabricated composite showed very low chemical stability.As a chemically stable composite, PTFE-based composite was also synthesized from α- or γ-zirconium phosphate crystalline powders dispersed in partially polymerized PTFE particles. By addition of zirconium phosphate powders, the proton conductivity jumped up to 2.2×10−3S/cm from 10−13S/cm of PTFE.

The Development of Novel Electrolyte Membrane with High Proton Conductivity at Medium Temperatures

2012 ◽  
Vol 472-475 ◽  
pp. 2819-2823
Author(s):  
Xue Dan Wang ◽  
Le Bin Yang ◽  
Jia Bin Liu ◽  
Yue Xiang Huang ◽  
Hang Yan Shen ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Proton Conductivity ◽  
Chemical Stability ◽  
Wide Temperature Range ◽  
Proton Conductor ◽  
Dramatic Improvement ◽  
High Proton Conductivity ◽  
Electrolyte Membrane ◽  
High Proton

A novel electrolyte membrane PVDF-Al2O3-CsHSO4 usable at medium temperatures was prepared by composite of PVDF and an inorganic proton conductor Al2O3-CsHSO4. The membrane has a steep increase in proton conductivity around 90°C and retains the high conductivity, about 10-3 S•cm-1, up to 200°C. The incorporation of Al2O3-CsHSO4 with PVDF leads to a dramatic improvement of the properties of PVDF, including widen the phase transition temperature of CsHSO4, improve proton conductivity and enhance chemical stability over wide temperature range.

Water mediated proton conduction in a sulfonated microporous organic polymer

2017 ◽  
Vol 53 (54) ◽  
pp. 7592-7595 ◽  
Author(s):  
C. Klumpen ◽  
S. Gödrich ◽  
G. Papastavrou ◽  
J. Senker
Keyword(s):  
Proton Conductivity ◽  
Proton Conduction ◽  
Porous Polymer ◽  
Organic Polymer ◽  
Water Molecules ◽  
High Proton Conductivity ◽  
High Proton

High proton conductivity mediated by water molecules adsorbed within the micro- and mesopores of the sulfonated porous polymer PAF-1.

Synthesis and characterization of chemically stable sulfonated copoly(triazole imide)s with high proton conductivity

2019 ◽  
Vol 59 (11) ◽  
pp. 2279-2289 ◽  
Author(s):  
Asheesh Singh ◽  
Anaparthi G. Kumar ◽  
Sayantani Saha ◽  
Rajdeep Mukherjee ◽  
Soumendu Bisoi ◽  
...  
Keyword(s):  
Proton Conductivity ◽  
Synthesis And Characterization ◽  
High Proton Conductivity ◽  
High Proton
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