Novel silica/poly(2,6-dimethyl-1,4-phenylene oxide) hybrid anion-exchange membranes for alkaline fuel cells: Effect of silica content and the single cell performance

Wu, Yonghui; Wu, Cuiming; Varcoe, John R.; Poynton, Simon D.; Xu, Tongwen; Fu, Yanzhe

doi:10.1016/j.jpowsour.2009.11.118

Cited by 148 publications

(76 citation statements)

References 38 publications

(70 reference statements)

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“…Figure 2 shows FT-IR spectra of PPO, CPPO and QPPO. The peak at 1600 cm -1 corresponds to C=C bond stretching and the band at 1190 cm -1 is due to C-O-C stretching (Wu et al 2010) of PPO. In CPPO, the peak at 720 cm -1 is assigned to the stretching vibration of C-Cl bond and the band at 1410 cm -1 is the characteristic bending vibration of CH 2 group (Lu et al 2008).…”

Section: Nmr and Ft-ir Studiesmentioning

confidence: 99%

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3-Methyltrimethylammonium poly(2,6-dimethyl-1,4-phenylene oxide) based anion exchange membrane for alkaline polymer electrolyte fuel cells

et al. 2014

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Abstract. Hydroxyl ion (OH -) conducting anion exchange membranes based on modified poly (phenylene oxide) are fabricated for their application in alkaline polymer electrolyte fuel cells (APEFCs). In the present study, chloromethylation of poly(phenylene oxide) (PPO) is performed by aryl substitution rather than benzyl substitution and homogeneously quaternized to form an anion exchange membrane (AEM).1 H NMR and FT-IR studies reveal successful incorporation of the above groups in the polymer backbone. The membrane is characterized for its ion exchange capacity and water uptake. The membrane formed by these processes show good ionic conductivity and when used in fuel cell exhibited an enhanced performance in comparison with the state-of-the-art commercial AHA membrane. A peak power density of 111 mW/cm 2 at a load current density of 250 mA/cm 2 is obtained for PPO based membrane in APEFCs at 30 °C.

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Section: Nmr and Ft-ir Studiesmentioning

confidence: 99%

“…Wu et al (2010) prepared AEMs by incorporating silica into PPO which exhibited high tensile strength and good conductivity. Recently, membranes with imidazolium groups (attached to benzyl position) have been developed from brominated PPO (BPPO) with good ionic conductivities (Ran et al 2012).…”

Section: Introductionmentioning

confidence: 99%

3-Methyltrimethylammonium poly(2,6-dimethyl-1,4-phenylene oxide) based anion exchange membrane for alkaline polymer electrolyte fuel cells

et al. 2014

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“…The cross-links and the inorganic component, such as -OSi-O-, are hypothesized to increase the thermal stability of the resulting AAEMs. Tripathi et al [106] and Xu and coworkers [107][108][109][110][111][112], Liu and coworkers [113][114], and Suzuki et al [115] have all focused on organic-inorganic composite anion exchange membranes. Commonly encountered amines containing inorganic monomers, such as aminoethylaminopropylmethyldimethoxysilane [115], alkylated triethoxysilylpropylamine (TESPA (+)) [110] and an anion exchange precursor labelled AESP [106] (see Table 1), clearly highlight the preference for resultant silicon containing inorganicorganic hybrids.…”

Section: Hofmann Elimination (Which Requires Anti-periplanar Conformamentioning

confidence: 99%

“…Commonly encountered amines containing inorganic monomers, such as aminoethylaminopropylmethyldimethoxysilane [115], alkylated triethoxysilylpropylamine (TESPA (+)) [110] and an anion exchange precursor labelled AESP [106] (see Table 1), clearly highlight the preference for resultant silicon containing inorganicorganic hybrids. A PPO-based composite membrane quaternized with triethylamine (TEA) [107][108] showed good ion conductivity (11 mS cm -1 ) and produced a power density of 32 mW cm -2 (geometric) when tested in a H 2 / O 2 fuel cell (gases supplied at ambient pressure). 6 ) and hydrogen gas [117].…”

Section: Hofmann Elimination (Which Requires Anti-periplanar Conformamentioning

confidence: 99%

Alkaline Anion Exchange Membranes for Fuel Cells- A Patent Review

Zhou¹,

Varcoe

2011

CHENG

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Abstract:Recently, Alkaline Polymer Electrolyte Membrane Fuel Cells (APEMFCs) have been attracting worldwide attention mainly due to the prospect of using non-platinum-group metal catalysts.In addition, there is growing evidence that these fuel cells can operate with the presence of carbonate.This mini review will introduce the state-of-the-art in understanding of alkaline anion-exchange membranes (AAEMs) in solid alkaline fuel cells. Ionomers for membrane electrode assembly (MEA) fabrication and the chemistry of the carbonate and bicarbonate forms of the AAEMs are also discussed.Key references to the latest scientific literature and reviews are included, along with a brief overview of directly relevant patents.Keywords: Alkaline polymer electrolyte membrane fuel cell, alkaline anion exchange membrane, alkaline ionomer, hybrid membrane fuel cell, carbonate and bicarbonate.

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“…As a result, ionomer binder solutions using grinded polymer showed higher dispersion and smaller particle size distribution than that using non-grinded polymer. The highest ionic conductivity and IEC of the membrane recast by using BPPO-G120s were 0.025 S cm , quaternized polyphenylene 12,13) , quaternized poly(phenylene oxide) 14) , quaternized poly(vinyl alcohol) 15) , imidazoliumbased copolymers …”

mentioning

confidence: 99%

Development of Ionomer Binder Solutions Using Polymer Grinding for Solid Alkaline Fuel Cells

Shin¹,

Kim²,

Kang³

et al. 2016

Journal of the Korean Electrochemical Society

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: In this study, an anion-exchange ionomer solution was prepared by grinding poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) in liquid nitrogen for solid alkaline fuel cells (SAFCs). Type of quaternized PPO (QPPO) solutions was controlled by grinding time. The ionomer binder solutions were characterized in terms of dispersity, particle size, and electrochemical properties. As a result, ionomer binder solutions using grinded polymer showed higher dispersion and smaller particle size distribution than that using non-grinded polymer. The highest ionic conductivity and IEC of the membrane recast by using BPPO-G120s were 0.025 S cm , respectively.

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Novel silica/poly(2,6-dimethyl-1,4-phenylene oxide) hybrid anion-exchange membranes for alkaline fuel cells: Effect of silica content and the single cell performance

Cited by 148 publications

References 38 publications

3-Methyltrimethylammonium poly(2,6-dimethyl-1,4-phenylene oxide) based anion exchange membrane for alkaline polymer electrolyte fuel cells

3-Methyltrimethylammonium poly(2,6-dimethyl-1,4-phenylene oxide) based anion exchange membrane for alkaline polymer electrolyte fuel cells

Alkaline Anion Exchange Membranes for Fuel Cells- A Patent Review

Development of Ionomer Binder Solutions Using Polymer Grinding for Solid Alkaline Fuel Cells

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