Chitosan–phosphotungstic acid complex as membranes for low temperature H2–O2 fuel cell

Santamaria, Monica; Pecoraro, Claudio Maria; Quarto, F. Di; Bocchetta, Patrizia

doi:10.1016/j.jpowsour.2014.11.147

Cited by 37 publications

(37 citation statements)

References 26 publications

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“…for O 2 reduction in agreement with the sluggish kinetic of this reaction. The R C values of Table 2 are higher with respect to those estimated with MEAs prepared in the same conditions but at the open circuit voltage [20]. Such reduction is a consequence of the higher overvoltage for spectra of Fig.…”

Section: In Situ-eis Studiesmentioning

confidence: 66%

“…The CS solution was put in contact with an aqueous PTA solution (0.38 M in this work) through a single interface [20] by using the dip-coating procedure according to which a thin film of PTA liquid is entrained by viscous drag on AAM substrate, and afterwards the cross-linking reaction occurs after immersion in the CS aqueous solution the time necessary the reticulation, between 5 s and 60 min in this work.…”

Section: Methodsmentioning

confidence: 99%

“…A survey of the already published works on the use of CS/ HPA composite membranes show that they have been tested as proton conductors in direct methanol [7e10, 16,17], in borohydride [18] and hydrogen [19,20] fed fuel cells. In the last case promising performances were obtained when membranes are prepared on the surface of phosphotungstic acid (PTA) impregnated porous anodic alumina [20].…”

Section: Introductionmentioning

confidence: 99%

“…In the last case promising performances were obtained when membranes are prepared on the surface of phosphotungstic acid (PTA) impregnated porous anodic alumina [20].…”

Section: Introductionmentioning

confidence: 99%

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Influence of synthesis conditions on the performance of chitosan–Heteropolyacid complexes as membranes for low temperature H2–O2 fuel cell

Pecoraro

Santamaria

Bocchetta

et al. 2015

International Journal of Hydrogen Energy

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Section: In Situ-eis Studiesmentioning

confidence: 66%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In the last case promising performances were obtained when membranes are prepared on the surface of phosphotungstic acid (PTA) impregnated porous anodic alumina [20].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of synthesis conditions on the performance of chitosan–Heteropolyacid complexes as membranes for low temperature H2–O2 fuel cell

Pecoraro

Santamaria

Bocchetta

et al. 2015

International Journal of Hydrogen Energy

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“…Additionally, chitosan has poor mechanical properties, which also restrict the requirements for its application as PEMs . To overcome these problems, modification strategies based on chitosan chemical cross‐linking, chemical modifications, and organic–inorganic composites, have been proposed in the past years. In this regard, MIL‐101 has recently been used as a filler in chitosan membranes by Li and co‐workers .…”

Section: Mofs As Fillers In Mixed‐matrix Membranes For Pemfcmentioning

confidence: 99%

Proton Conductivity of Composite Polyelectrolyte Membranes with Metal‐Organic Frameworks for Fuel Cell Applications

Escorihuela

Narducci

Compañ

et al. 2018

Adv Materials Inter

156

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The study of proton conductivity processes has gained intensive attention in the past decades due to their potential applications in chemical sensors, electrochemical devices, and energy generation. The scientific community has focused its efforts on the development of high‐performing polymeric membranes as proton exchange membranes (PEMs) for fuel cell (FC) applications. In particular, high conductivity at different humidity and temperature and enhanced chemical and mechanical stability under operative conditions are considered the main goals to be reached. The design of mixed‐matrix membranes (MMMs) based on conductive polymers and inorganic fillers is an approach commonly used for achieving materials with improved conductive and mechanical properties. In the last five years, the use of metal‐organic frameworks (MOFs) as fillers for conductive MMMs has rapidly grown for their intrinsic stability and structural versatility. The recent progress around the proton conductivity of MOF based composite membranes on PEMs for FC applications is critically reviewed.

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Poly(vinyl alcohol) modified by KE reactive dyes as a novel proton‐exchange membrane for potential fuel‐cell applications

Zhou

Xie

2015

J of Applied Polymer Sci

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A new type of proton-exchange membrane based on poly(vinyl alcohol) (PVA) modified KE reactive dyes (KE-4BD) was prepared and evaluated as H 1 -conducting polymer electrolytes. The effects of the content of KE-4BD on the membrane H 1 conductivity and water uptake were studied with an alternating-current impedance technique and the method of weighing, respectively. Fourier transform infrared and scanning electron microscopy were used for the chemical and structural characterization of these membranes. With all of these properties, the optimal mass ratio between PVA and KE-4BD was 1:0.5, and the resulting membrane exhibited a high proton conductivity (0.109 S/cm) at room temperature; this afforded a power density of 83.9 mW/cm 2 at 210.4 mA/ cm 2 and an open-circuit voltage of 810.8 mV. The PVA/KE-4BD membranes showed a high oxidative stability in Fenton's reagent (3% H 2 O 2 v/v, 2 ppm FeSO 4 ). Thermal analysis also showed that the membranes exhibited a significant improvement in thermal stability.

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Chitosan–phosphotungstic acid complex as membranes for low temperature H2–O2 fuel cell

Cited by 37 publications

References 26 publications

Influence of synthesis conditions on the performance of chitosan–Heteropolyacid complexes as membranes for low temperature H2–O2 fuel cell

Influence of synthesis conditions on the performance of chitosan–Heteropolyacid complexes as membranes for low temperature H2–O2 fuel cell

Proton Conductivity of Composite Polyelectrolyte Membranes with Metal‐Organic Frameworks for Fuel Cell Applications

Poly(vinyl alcohol) modified by KE reactive dyes as a novel proton‐exchange membrane for potential fuel‐cell applications

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