Synthesis and ionic conductivity of a polysiloxane containing quaternary ammonium groups

Kang, Junjie; Li, Weiying; Lin, Yuan; Li, Xueping; Xiao, Xurui; Fang, Shifeng

doi:10.1002/pat.434

Cited by 78 publications

(57 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A number of other membrane materials have been reported for application in DMAFCs, such as polysiloxane containing quaternary ammonium groups [107], aminated poly(oxyethylene) methacrylates [108], quaternised polyethersulfone Cardo [109], and quaternised poly(phthalazinon ether sulfone ketone) [110]. The poor stability of these materials in hydroxide electrolytes limited their further application in DMAFC.…”

Section: Cation Exchange Membranesmentioning

confidence: 99%

See 1 more Smart Citation

Principles and Materials Aspects of Direct Alkaline Alcohol Fuel Cells

2010

View full text Add to dashboard Cite

Direct alkaline alcohol fuel cells (DAAFCs) have attracted increasing interest over the past decade because of their favourable reaction kinetics in alkaline media, higher energy densities achievable and the easy handling of the liquid fuels. In this review, principles and mechanisms of DAAFCs in alcohol oxidation and oxygen reduction are discussed. Despite the high energy densities available during the oxidation of polycarbon alcohols they are difficult to oxidise. Apart from methanol, the complete oxidation of other polycarbon alcohols to CO 2 has not been achieved with current catalysts. Different types of catalysts, from conventional precious metal catalyst of Pt and Pt alloys to other lower cost Pd, Au and Ag metal catalysts are compared. Non precious metal catalysts, and lanthanum, strontium oxides and perovskite-type oxides are also discussed. Membranes like the ones used as polymer electrolytes and developed for DAAFCs are reviewed. Unlike conventional proton exchange membrane fuel cells, anion exchange membranes are used in present DAAFCs. Fuel cell performance with DAAFCs using different alcohols, catalysts and membranes, as well as operating parameters are summarised. In order to improve the power output of the DAAFCs, further developments in catalysts, membrane materials and fuel cell systems are essential. OPEN ACCESSEnergies 2010, 3 1500

show abstract

Section: Cation Exchange Membranesmentioning

confidence: 99%

“…The maximum power density of 12 mW cm −2 was achieved with a mixed media: 1N KOH in anode and 1N H 2 SO 4 in cathode. Sung et al [107] developed a micro fuel cell using non-noble metal catalysts in alkaline media. The fuel cell was designed with both electrodes not facing each other, but being in-plane.…”

Section: Performance Of Daafcmentioning

confidence: 99%

Principles and Materials Aspects of Direct Alkaline Alcohol Fuel Cells

2010

View full text Add to dashboard Cite

show abstract

“…However on Pt (100) the oxidation of methanol in NaOH was reported to be less active than in carbonate and bicarbonate solutions. FTIR data showed that CO is weakly adsorbed on Pt(111) compared with Pt (110) and Pt(100) [52]. Figure 13.3 shows cyclic voltammograms recorded for a platinized electrode at 60 C in 0.5 M solutions of NaOH, Na 2 CO 3 and NaHCO 3 .…”

Section: Effect Of Ph and Electrolytementioning

confidence: 99%

Electrocatalysis in the Direct Methanol Alkaline Fuel Cell

Scott

2009

Electrocatalysis of Direct Methanol Fuel Cells

View full text Add to dashboard Cite

“…When the operational environment is alkaline, AMFCs have advantages of faster electrokinetics, lower fuel crossover, reduced CO poisoning, and use of non-precious metal catalysts such as silver, nickel and perovskite [2]. To date, much efforts have been taken to develop various types of AEMs based on quaternized polymers such as polysiloxane [3] and radiation grafted [VPSIm][OH] [4]. In this article, a new type of alkaline anion-exchange membrane was proposed based on cross-linking chitosan (CS) and poly[(3-methyl-1-vinylimidazolium methyl sulfate)-co-(1-vinylcaprolactam)-co-(1-vinylpyrrolidone)] composite (CS/PMVMS-co-VC-co-VP).…”

Section: Introductionmentioning

confidence: 99%

Anion conducting chitosan/poly[(3-methyl-1-vinylimidazolium methyl sulfate)-co-(1-vinylcaprolactam)-co-(1-vinylpyrrolidone)] membrane for alkaline anion-exchange membrane fuel cells

Wei²,

Hou³

et al. 2017

Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)

View full text Add to dashboard Cite

Abstract.Anion-exchange membrane composed of chitosan (CS) and poly [(3-methyl-1-vinylimidazolium methyl sulfate)-co-(1-vinylcaprolactam)-co-(1-vinylpyrrolidone)] (PMVMS-co-VC-co-VP) was prepared by applying double cross-linking technique for alkaline membrane fuel cell (AMFC). Having tested the ion conductivity and water uptake without thermal cross-linking, the CS/PMVMS-co-VC-co-VP-OH -membrane (1:0.75 by mass) shows the ionic conductivity of 1.39 × 10 -3 S cm -1 with high water uptake of 88.45%.However, when the membrane was double cross-linked by both thermal and chemical cross-linking, the ionic conductivity of the membrane was improved and reached to 1.58×10 -3 S cm -1 , instead, the water uptake of the membrane was largely decreased to lower than 48.02%. The oxidation stability of the membrane was also enhanced greatly. Moreover, the ionic conductivity increases as the temperature increased; with the maximum OH -conductivity of 3.85×10 -3 S cm -1 was obtained at 80 o C.

show abstract

Synthesis and ionic conductivity of a polysiloxane containing quaternary ammonium groups

Cited by 78 publications

References 13 publications

Principles and Materials Aspects of Direct Alkaline Alcohol Fuel Cells

Principles and Materials Aspects of Direct Alkaline Alcohol Fuel Cells

Electrocatalysis in the Direct Methanol Alkaline Fuel Cell

Anion conducting chitosan/poly[(3-methyl-1-vinylimidazolium methyl sulfate)-co-(1-vinylcaprolactam)-co-(1-vinylpyrrolidone)] membrane for alkaline anion-exchange membrane fuel cells

Contact Info

Product

Resources

About