Novel composite membranes based on PBI and dicationic ionic liquids for high temperature polymer electrolyte membrane fuel cells

Hooshyari, Khadijeh; Javanbakht, Mehran; Adibi, Mina

doi:10.1016/j.electacta.2016.04.115

Cited by 60 publications

(37 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At first, a homogeneous solution was formed by dissolving 0.2 g PBI and 0.1 LiCl g (PBI/LiCl: 1:0.5) in 10 mL N, N-dimethylacetamide (DMAc) under an N 2 atmosphere at 150°C. After, a suitable content of the doped-perovskite nanoparticles (2,4,6,8,10,12,14, and 16 wt.%) was dispersed by sonication for an hour. The prepared solution was cast onto a glass plate and the solvent was removed at temperatures ranging from 80°C to 120°C under vacuum condition for the duration of up to 20 hours.…”

Section: Preparation Of Nanocomposite Membranesmentioning

confidence: 99%

“…Phosphoric acid (PA)‐doped polybenzimidazole (PA‐PBI)–based high‐temperature PEMs as the well‐known alternative of Nafion have considerable benefits including high CO tolerance, faster electrode kinetics, and elimination of cathode flooding . Recently, many high‐temperature PEMs have been investigated . For example, different PEMs based on BaZrO 3 nanoparticles, SrCeO 3 nanoparticles, and Fe 2 TiO 5 nanoparticles have been introduced by our groups.…”

Section: Introductionmentioning

confidence: 99%

“…The addition of an appropriate additive to the PA‐PBI membrane is a good idea for improving the properties of this membrane. The remarkable properties of perovskite structure materials have attracted great attention for application in PEM fuel cells . The perovskite‐type materials are mainly absorbing as inorganic fillers for PEMs at high temperatures due to the high thermal stability and suitable proton conductivity .…”

Section: Introductionmentioning

confidence: 99%

“…8,9 Recently, many high-temperature PEMs have been investigated. 10,11 For example, different PEMs based on BaZrO 3 nanoparticles, 12,13 SrCeO 3 nanoparticles, 14 and Fe 2 TiO 5 nanoparticles 15,16 have been introduced by our groups. Furthermore, PBI is a basic polymer with low cost, which can be doped with strong acids to form PEMs with high proton conductivity.…”

Section: Introductionmentioning

confidence: 99%

“…The remarkable properties of perovskite structure materials have attracted great attention for application in PEM fuel cells. 10,15 The perovskite-type materials are mainly absorbing as inorganic fillers for PEMs at high temperatures due to the high thermal stability and suitable proton conductivity. 18,28 The perovskites with wide range of chemical and physical properties possess a chemical formula of ABO 3 , where A (A cations are 12-coordinated by oxygen and have a large ionic radius with similar size as the oxygen ion) and B (B cations are 6-coordinated by oxygen and have a small ionic radius, which situated in the octahedral holes between the closed pack AO-layers) are cations that are appropriate in these structures.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Novel nanocomposite membranes based on PBI and doped‐perovskite nanoparticles as a strategy for improving PEMFC performance at high temperatures

2020

Self Cite

View full text Add to dashboard Cite

Summary In this work, Sr2+ dopant effects of Ba0.9Sr0.1TiO3 and La0.9Sr0.1CrO3‐δ doped‐perovskite nanoparticles on increasing proton conductivity, fuel cell performance, and mechanical and thermal stability of polybenzimidazole‐based nanocomposite membranes were studied. The Sr2+ dopant creates cation vacancies in Ba0.9Sr0.1TiO3 doped‐perovskite nanoparticles and oxygen vacancies in La0.9Sr0.1CrO3‐δ doped‐perovskite nanoparticles. The oxygen vacancies, which decrease columbic repulsion between protons and positive ions, have a more important role than the cation vacancies. They provide high surface area and high interfacial interaction between La0.9Sr0.1CrO3‐δ doped‐perovskite nanoparticles, phosphoric acid, and polybenzimidazole for proton transfer and increase the proton conductivity of the nanocomposite membranes. In addition, the results of relative humidity effects showed that the ordered arrangement of oxygen vacancies of the La0.9Sr0.1CrO3‐δ doped‐perovskite nanoparticles creates a specific pathway in the nanocomposite membranes for increasing proton transfer in the presence of relative humidity. Furtheremore, at phosphoric acid doping level of 13 mol phosphoric acid per monomer unit, proton conductivity of the nanocomposite membranes containing 8 wt.% La0.9Sr0.1CrO3‐δ doped‐perovskite nanoparticles was obtained as 126 mS cm‐1 at 180°C and 6% relative humidity. The nanocomposite membrane showed the best performance and the power density of 0.62 W cm‐2 at 180°C and 0.5 V.

show abstract

Section: Preparation Of Nanocomposite Membranesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Novel nanocomposite membranes based on PBI and doped‐perovskite nanoparticles as a strategy for improving PEMFC performance at high temperatures

2020

Self Cite

View full text Add to dashboard Cite

show abstract

Ionic Liquid–Polymer Composites: A New Platform for Multifunctional Applications

Correia

Fernandes

Martins

et al. 2020

Adv Funct Materials

220

201

View full text Add to dashboard Cite

Ionic liquids (ILs) have emerged as a novel class of chemical compounds for the development of advanced (multi)functional materials with outstanding potential in applications of several areas due to their unique properties and functionalities. The combination of ILs with polymers, in a composite, allows for developing smart materials, which synergistically combine the features of specific polymers and ILs. Moreover, ILs can be extensively modified by the incorporation of functional groups with specific properties into the cation, anion, or both. Thus, it is possible to tune the IL, the polymer, or both to obtain a broad spectrum of multifunctional composites and address the specific requirements of many applications. This work focusses on advanced materials and strategies concerning ILs and polymers for the development of smart IL/polymer‐based materials for applications including responsive and sensitive sensors, actuators, environment, batteries, fuel cells, and biomedical applications.

show abstract

New all solid‐state polymer electrolyte based on epoxy resin and ionic liquid for high temperature applications

Silva

Soares

2017

J of Applied Polymer Sci

View full text Add to dashboard Cite

Flexible epoxy network loaded with high amount of ionic liquid (IL) 1‐decyl‐3‐methylimidazolium bromide ([DMIM]Br) has been reported by using a mixture of polyol amine as curing agent. The IL presents good electrochemical response even at 170 °C, as no evidence of redox reactions was observed. The incorporation of as high as 50 wt % of this IL within the epoxy matrix resulted in solid and flexible electrolyte with good thermal stability below 180 °C, as measured by thermogravimetric analysis and ionic conductivity of around 10−6 S cm−1 at room temperature and higher than 10−3 S cm−1 at high temperature. This electrolyte presented a prodigious potential for applications in electrochemical devices at high temperature like batteries and supercapacitors, and the flexibility of this solid electrolyte persist at low temperature because of its low glass transition temperature. Furthermore, leakage problems were not observed. Thereby, impedance spectroscopy and cyclic voltammetry were performed to characterize the electrochemical properties. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45838.

show abstract

Novel composite membranes based on PBI and dicationic ionic liquids for high temperature polymer electrolyte membrane fuel cells

Cited by 60 publications

References 56 publications

Novel nanocomposite membranes based on PBI and doped‐perovskite nanoparticles as a strategy for improving PEMFC performance at high temperatures

Novel nanocomposite membranes based on PBI and doped‐perovskite nanoparticles as a strategy for improving PEMFC performance at high temperatures

Ionic Liquid–Polymer Composites: A New Platform for Multifunctional Applications

New all solid‐state polymer electrolyte based on epoxy resin and ionic liquid for high temperature applications

Contact Info

Product

Resources

About