Polyetherimide based anion exchange membranes for alkaline fuel cell: Better ion transport properties and stability

Yadav, Vikrant; Rajput, Abhishek; Sharma, Prem Prakash; Jha, Prafulla K.; Kulshrestha, Vaibhav

doi:10.1016/j.colsurfa.2019.124348

Cited by 36 publications

(23 citation statements)

References 59 publications

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“…A series of substances with good alkali resistance, such as cellulose, have been used to enhancethe alkali resistance of PVA-based polyelectrolyte [10]. In terms of aromatic polymer electrolytes, such as polyetherimide(PEI) [25], polyarylethersulfone(PAES) [26], polyaryletherketone(PEK) [27], polyphenylene oxide (PPO) [28], polybenzimidazole (PBI) [29], etc., they are good at chemical stability and thermal stability; however, their intrinsic poor solubility reduces their value in polyelectrolyte application [30]. Hydroxides such as potassium-, lithium-, and sodium-based alkali metal salts are commonly used in alkaline polyelectrolytes.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Alkaline Polyelectrolyte Membrane Based on Quaternary Ammonium Salt–Modified Cellulose and Its Application in Zn–Air Flexible Battery

et al. 2020

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In this study, a type of alkaline solid polyelectrolyte (ASPE) membrane was developed via the introduction of microcrystalline cellulose (MCC) and its modified product (QMCC) into the polyvinyl alcohol (PVA) matrix. In this process, green NaOH/urea-based solvent was used to achieve a good dispersion of MCC in the PVA matrix; meanwhile, the OH− groups in the NaOH/urea-based solvent provided an alkaline environment for good ion conductivity. Compared to the MCC-incorporated ASPE, further improved conductivity was achieved when the MCC was modified with quantitative quaternary ammonium salt. TGA showed that the addition of QMCC improved the water retention of the matrix, which was beneficial to the OH− conduction in the system. Compared to the control (50 mS cm−1), a maximum conductivity of 238 mS cm−1 was obtained after the incorporation of QMCC in the PVA matrix. Moreover, the tensile strength of the polymer electrolyte were also significantly increased with the addition of QMCC. Finally, this developed ASPE membrane was used in assembling a flexible Zn–air battery and showed a promising potential in the development of flexible electronic devices.

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Section: Introductionmentioning

confidence: 99%

Preparation of Alkaline Polyelectrolyte Membrane Based on Quaternary Ammonium Salt–Modified Cellulose and Its Application in Zn–Air Flexible Battery

et al. 2020

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“…4.68–5.69% degradation in IEC after exposure in 5 M KOH for 48 h at 30 °C is reported in their study. 45 Degradation of ammonium groups in quaternized polysulfone (QPSU) and QAPOSS is also verified by Elumalai and Sangeetha with 8–10% loss in IEC of QPSU/QAPOSS composites after treatment in 1 M KOH for 7 days at 60 °C. 46 …”

Section: Results and Discussionmentioning

confidence: 76%

Anion Exchange Composite Membranes Composed of Quaternary Ammonium-Functionalized Poly(2,6-dimethyl-1,4-phenylene oxide) and Silica for Fuel Cell Application

Vijayakumar

Son

et al. 2021

ACS Omega

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Anion exchange membranes (AEMs) with good alkaline stability and ion conductivity are fabricated by incorporating quaternary ammonium-modified silica into quaternary ammonium-functionalized poly(2,6-dimethyl-1,4-phenylene oxide) (QPPO). Quaternary ammonium with a long alkyl chain is chemically grafted to the silica in situ during synthesis. Glycidyltrimethylammoniumchloride functionalization on silica (QSiO 2 ) is characterized by Fourier transform infrared and transmission electron microscopic techniques. The QPPO/QSiO 2 membrane having an ion exchange capacity of 3.21 meq·g –1 exhibits the maximum hydration number (λ = 11.15) and highest hydroxide ion conductivity of 45.08 × 10 –2 S cm –1 at 80 °C. In addition to the high ion conductivity, AEMs also exhibit good alkaline stability, and the conductivity retention of the QPPO/QSiO 2 -3 membrane after 1200 h of exposure in 1 M potassium hydroxide at room temperature is about 91% ascribed to the steric hindrance offered by the grafted long glycidyl trimethylammonium chain in QSiO 2 . The application of the QPPO/QSiO 2 -3 membrane to an alkaline fuel cell can yield a peak power density of 142 mW cm –2 at a current density of 323 mA cm –2 and 0.44 V, which is higher than those of commercially available FAA-3-50 Fumatech AEM (OCV: 0.91 V; maximum power density: 114 mW cm –2 at current density: 266 mA cm –2 and 0.43 V). These membranes provide valuable insights on future directions for advanced AEM development for fuel cells.

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“…Cationic complexes are created after joining protons with molecules of water or methanol. An integral feature in the vehicular mechanism is the free volume existence in polymeric chains of proton exchange membranes [80]. This method can be employed to choose inorganic additives to enhance polymeric membrane proton conductivity at low RH conditions and high temperatures [81].…”

Section: Polymer Electrolyte Membrane Fuel Cell (Pemfcs)mentioning

confidence: 99%

New Perspectives on Fuel Cell Technology: A Brief Review

et al. 2020

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Energy storage and conversion is a very important link between the steps of energy production and energy consumption. Traditional fossil fuels are a natural and unsustainable energy storage medium with limited reserves and notorious pollution problems, therefore demanding a better choice to store and utilize the green and renewable energies in the future. Energy and environmental problems require a clean and efficient way of using the fuels. Fuel cell functions to efficiently convert oxidant and chemical energy accumulated in the fuel directly into DC electric, with the by-products of heat and water. Fuel cells, which are known as effective electrochemical converters, and electricity generation technology has gained attention due to the need for clean energy, the limitation of fossil fuel resources and the capability of a fuel cell to generate electricity without involving any moving mechanical part. The fuel cell technologies that received high interest for commercialization are polymer electrolyte membrane fuel cells (PEMFCs), solid oxide fuel cells (SOFCs), and direct methanol fuel cells (DMFCs). The optimum efficiency for the fuel cell is not bound by the principle of Carnot cycle compared to other traditional power machines that are generally based on thermal cycles such as gas turbines, steam turbines and internal combustion engines. However, the fuel cell applications have been restrained by the high cost needed to commercialize them. Researchers currently focus on the discovery of different materials and manufacturing methods to enhance fuel cell performance and simplify components of fuel cells. Fuel cell systems’ designs are utilized to reduce the costs of the membrane and improve cell efficiency, durability and reliability, allowing them to compete with the traditional combustion engine. In this review, we primarily analyze recent developments in fuel cells technologies and up-to-date modeling for PEMFCs, SOFCs and DMFCs.

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Polyetherimide based anion exchange membranes for alkaline fuel cell: Better ion transport properties and stability

Cited by 36 publications

References 59 publications

Preparation of Alkaline Polyelectrolyte Membrane Based on Quaternary Ammonium Salt–Modified Cellulose and Its Application in Zn–Air Flexible Battery

Preparation of Alkaline Polyelectrolyte Membrane Based on Quaternary Ammonium Salt–Modified Cellulose and Its Application in Zn–Air Flexible Battery

Anion Exchange Composite Membranes Composed of Quaternary Ammonium-Functionalized Poly(2,6-dimethyl-1,4-phenylene oxide) and Silica for Fuel Cell Application

New Perspectives on Fuel Cell Technology: A Brief Review

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