Effect of zeolites on chitosan/zeolite hybrid membranes for direct methanol fuel cell

Wang, Jingtao; Zheng, Xiaohong; Wu, Hong; Zheng, Bin; Jiang, Zhongyi; Hao, Xiaopeng; Wang, Baoyi

doi:10.1016/j.jpowsour.2007.12.063

Cited by 117 publications

(87 citation statements)

References 45 publications

(74 reference statements)

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“…Furthermore, ANA has a larger pore diameter (15.00 Å) than MOR (5.16 Å). Thus, more methanol can be adsorbed in the voids of ANA/NF than in than MOR/NF composite membrane, as previously mentioned when discussing methanol uptake [46]. MOR/NF composite membrane showed lower methanol permeability than ANA/NF at both testing temperatures.…”

Section: Methanol Permeabilitysupporting

confidence: 54%

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Mordenite/Nafion and analcime/Nafion composite membranes prepared by spray method for improved direct methanol fuel cell performance

Prapainainar

Kongkachuichay

et al. 2017

Applied Surface Science

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Highlight Mordenite and analcime were used as fillers in Nafion composite membranes for DMFC. The composite membranes were fabricated by spray method. Methanol permeability was reduced up to 2-3 times using the composite membranes. Mordenite/Naifon membrane showed 2 times higher DMFC performance than Nafion117. AbstractThe aim of this work was to improve proton exchange membranes (PEMs) used in direct methanol fuel cells (DMFCs). A membrane with a high proton conductivity and low methanol permeability was required. Zeolite filler in Nafion (NF matrix) composite membranes were prepared using two types of zeolite, mordenite (MOR) and analcime (ANA). Spray method was used to prepare the composite membranes, and properties of the membranes were investigated: mechanical properties, solubility, water and methanol uptake, ion-exchange capacity (IEC), proton conductivity, methanol permeability, and DMFC performance. It was found that MOR filler showed higher performance than ANA. The MOR/Nafion composite membrane gave better properties than ANA/Nafion composite membrane, including a higher proton conductivity and a methanol permeability that was 2 -3 times lower. The highest DMFC performance (10.75 mW·cm -2 ) was obtained at 70 °C and with 2 M methanol, with a value 1.5 times higher than that of ANA/Nafion composite membrane and two times higher than that of commercial Nafion 117 (NF 117).

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Section: Methanol Permeabilitysupporting

confidence: 54%

“…This may be due to the intrinsic properties of ANA and MOR or may be because ANA has larger pore diameter (15.00 Å) than MOR (5.16 Å). Therefore, more methanol was able to be adsorbed in the voids of ANA/NF than in the MOR/NF composite membrane [46].…”

Section: Methanol Uptakementioning

confidence: 97%

Mordenite/Nafion and analcime/Nafion composite membranes prepared by spray method for improved direct methanol fuel cell performance

Prapainainar

Kongkachuichay

et al. 2017

Applied Surface Science

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“…Data shown are for 2.0 mol L −1 methanol concentration. Methanol permeability was observed to increase with the decrease in zeolite size for the zeolite-filled chitosan membranes as reported in [61]. Ch/PMA [62] was prepared by adding phosphomolybdic acid chitosan, both in solution form.…”

Section: Biological Activities and Application Of Marine Polysaccharidesmentioning

confidence: 67%

Chitosan and Phthaloylated Chitosan in Electrochemical Devices

Osman¹,

Arof²

2017

Biological Activities and Application of Marine Polysaccharides

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Chitin and chitosan are widely found in nature. Chitin can be obtained from fungi and in the lower animals. Chitosan can be derived from chitin. The process of chitosan derivation from chitin is called deacetylation. Chitosan is non-toxic, odourless, biocompatible in animal tissues and enzymatically biodegradable. It has found many applications in the fields of cosmetics, wound healing, dietetics and waste-water treatment. Chitosan holds many promising potentials, but its inability to dissolve in many of the common solvents has restricted its application. Hence, chitosan has been modified, and there are now many derivatives of chitosan. In the current chapter, we discuss chitosan and only the phthaloyl chitosan derivative. Their applications in several electrochemical devices are also discussed.

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“…The four composite membranes i.e. CS/ heteropolyacids (HPAs), CS/ phosphomolybdic acid (PMA), CS/phosphotungstic acid (PWA) and CS/silicotungstic acid (SiWA)) were prepared by an infiltration and selfassembly method [119]. The methanol permeability of CS/PMA composite membrane was approximately two times higher than Nafion 117.…”

Section: +-22mentioning

confidence: 99%

Chitosan Based Membranes for Separation, Pervaporation and Fuel Cell Applications: Recent Developments

Chakrabarty¹,

Kumar²,

Shahi³

2010

Biopolymers

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Effect of zeolites on chitosan/zeolite hybrid membranes for direct methanol fuel cell

Cited by 117 publications

References 45 publications

Mordenite/Nafion and analcime/Nafion composite membranes prepared by spray method for improved direct methanol fuel cell performance

Mordenite/Nafion and analcime/Nafion composite membranes prepared by spray method for improved direct methanol fuel cell performance

Chitosan and Phthaloylated Chitosan in Electrochemical Devices

Chitosan Based Membranes for Separation, Pervaporation and Fuel Cell Applications: Recent Developments

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