Silicon hydrogensulfates: solid acids with exceptional 25 °C conductivities and possible electrochemical device applications

2017 ◽  
Vol 5 (27) ◽  
pp. 14092-14100 ◽  
Author(s):  
I. S. Klein ◽  
S. K. Davidowski ◽  
J. L. Yarger ◽  
C. A. Angell
Keyword(s):  
Fuel Cell ◽  
Proton Conductivity ◽  
Solid Acids ◽  
High Proton Conductivity ◽  
Short Term ◽  
Electrochemical Device ◽  
High Proton ◽  
Device Applications

Novel anhydrous solid acids of remarkably high proton conductivity and their short-term fuel cell applications are presented.

scholarly journals Polyoxometalate–Polymer Hybrid Materials as Proton Exchange Membranes for Fuel Cell Applications

Molecules ◽  
2019 ◽  
Vol 24 (19) ◽  
pp. 3425 ◽  
Author(s):  
Zhai ◽  
Li
Keyword(s):  
Fuel Cell ◽  
Proton Conductivity ◽  
Hybrid Materials ◽  
Clean Energy ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
High Proton Conductivity ◽  
Proton Conducting ◽  
Polymer Hybrid ◽  
High Proton

As one of the most efficient pathways to provide clean energy, fuel cells have attracted great attention in both academic and industrial communities. Proton exchange membranes (PEMs) or proton-conducting electrolytes are the key components in fuel cell devices, which require the characteristics of high proton conductivity as well as high mechanical, chemical and thermal stabilities. Organic–inorganic hybrid PEMs can provide a fantastic platform to combine both advantages of two components to meet these demands. Due to their extremely high proton conductivity, good thermal stability and chemical adjustability, polyoxometalates (POMs) are regarded as promising building blocks for hybrid PEMs. In this review, we summarize a number of research works on the progress of POM–polymer hybrid materials and related applications in PEMs. Firstly, a brief background of POMs and their proton-conducting properties are introduced; then, the hybridization strategies of POMs with polymer moieties are discussed from the aspects of both noncovalent and covalent concepts; and finally, we focus on the performance of these hybrid materials in PEMs, especially the advances in the last five years. This review will provide a better understanding of the challenges and perspectives of POM–polymer hybrid PEMs for future fuel cell applications.

High proton conductivity in a charge carrier induced Ni(II)–metal–organic framework

2022 ◽  
Author(s):  
Debabrata Chakraborty ◽  
Arijit Ghorai ◽  
Piyali Bhanja ◽  
Susanta Banerjee ◽  
Asim Bhaumik
Keyword(s):  
Fuel Cell ◽  
Charge Carrier ◽  
Proton Conductivity ◽  
Metal Organic Framework ◽  
Membrane Material ◽  
High Proton Conductivity ◽  
High Proton ◽  
Metal Organic ◽  
Higher Temperature ◽  
A Charge

Fuel cell technology for hydrogen production demands high proton conductivity of the membrane material at a relatively higher temperature. Thus, optimization of the proton conductivity of the membrane material is...

A sulfonated polybenzophenone/polyimide copolymer as a novel proton exchange membrane

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50082-50086 ◽  
Author(s):  
Takahiro Miyahara ◽  
Junpei Miyake ◽  
Soichi Matsuno ◽  
Masahiro Watanabe ◽  
Kenji Miyatake
Keyword(s):  
Fuel Cell ◽  
Block Copolymer ◽  
Proton Conductivity ◽  
Proton Exchange Membrane ◽  
Gas Permeability ◽  
Proton Exchange ◽  
High Proton Conductivity ◽  
High Proton ◽  
Exchange Membrane

A sulfonated polybenzophenone/polyimide block copolymer membrane exhibited high proton conductivity, good dimensional and mechanical stabilities, and low gas permeability, which are attractive for fuel cell applications.

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.

scholarly journals Fuel Cell Using Squid Axon Electrolyte and Its Proton Conductivity

2020 ◽  
Vol 11 (4) ◽  
pp. 86
Author(s):  
Tomoki Furuseki ◽  
Yasumitsu Matsuo
Keyword(s):  
Fuel Cell ◽  
Ion Channels ◽  
Ion Channel ◽  
Power Density ◽  
Proton Conductivity ◽  
Clean Energy ◽  
Squid Axon ◽  
High Proton Conductivity ◽  
High Proton

Fuel cells using biomaterials have the potential for environmentally friendly clean energy and have attracted a lot of interest. Moreover, biomaterials are expected to develop into in vivo electrical devices such as pacemakers with no side effects. Ion channels, which are membrane proteins, are known to have a fast ion transport capacity. Therefore, by using ion channels, the realization of fuel cell electrolytes with high-proton conductivity can be expected. In this study, we have fabricated a fuel cell using an ion channel electrolyte for the first time and investigated the electrical properties of the ion channel electrolyte. It was found that the fuel cell using the ion channel membrane shows a power density of 0.78 W/cm2 in the humidified condition. On the other hand, the power density of the fuel cell blocking the ion channel with the channel blocker drastically decreased. These results indicate that the fuel cell using the ion channel electrolyte operates through the existence of the ion channel and that the ion channel membrane can be used as the electrolyte of the fuel cell in humidified conditions. Furthermore, the proton conductivity of the ion channel electrolyte drastically increases above 85% relative humidity (RH) and becomes 2 × 10−2 S/m at 96% RH. This result indicates that the ion channel becomes active above 96%RH. In addition, it was deduced from the impedance analysis that the high proton conductivity of the ion channel electrolyte above 96% RH is caused by the activation of ion channels, which are closely related to the fractionalization of water molecule clusters. From these results, it was found that a fuel cell using the squid axon becomes a new fuel cell using the function of the ion channel above 96% RH.

Inorganic open framework based on lanthanide ions and polyoxometalates with high proton conductivity

2018 ◽  
Vol 5 (5) ◽  
pp. 1213-1217 ◽  
Author(s):  
Jia-Xuan Wang ◽  
Yi-Di Wang ◽  
Mei-Jie Wei ◽  
Hua-Qiao Tan ◽  
Yong-Hui Wang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Conductivity ◽  
Cost Effective ◽  
Lanthanide Ions ◽  
Water Stability ◽  
High Proton Conductivity ◽  
Open Framework ◽  
Cell Technology ◽  
High Proton ◽  
Conducting Materials

The development of new proton-conducting materials that are cost effective and have high proton conductivity and water stability is very important in fuel cell technology.

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.

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