Study of poly(vinyl alcohol)/titanium oxide composite polymer membranes and their application on alkaline direct alcohol fuel cell

Yang, Chun‐Chen; Chiu, Shwu‐Jer; Lee, Kuo-Tong; Chien, Wen-Chen; Lin, Che-Tseng; Huang, Ching An

doi:10.1016/j.jpowsour.2008.06.011

Cited by 138 publications

(67 citation statements)

References 39 publications

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“…Under certain state, polymers with carboxyl or hydroxyl groups particularly, will bond chemically with the hydroxyl groups on the surface of TiO 2 . [4][5][6]. Its low market price is another factor that many researchers employed this polymer in their work.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Study of New Immobilized TiO₂Technique Towards Degradation of Reactive Red 4 Dye

Ain

Jalil

Zaharudin

et al. 2016

MATEC Web of Conferences

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Abstract. The study on TiO2 for wastewater remediation has gained interest among researchers. However, the application of this photocatalyst is limited due to non-recyclability of conventional TiO2. Thus, immobilization technique has been developed to solve this issue. Hence, a comparison study between two types of immobilized photocatalysts namely titanium dioxide (TiO2) and TiO2 mixed with polyvinyl alcohol (PVA) has been conducted in this work to observe the significant effect of PVA polymer in photocatalysis reaction of reactive red 4 (RR4) dye. Double sided adhesive tape (DSAT) was used as thin layer binder in this immobilization system. The result shows that the photocatalytic performance of TiO2-PVA/DSAT was higher than that of TiO2/DSAT under both normal UV and visible light irradiations due to the conjugated unsaturated polymer from PVA serve as electron donor for TiO2 thus increase the photocatalysis process. Besides, TiO2-PVA/DSAT was also found to possess much better adhesion strength to the support material compared to TiO2/DSAT. Based on the findings, this TiO2 immobilization system is expected to be beneficial in the industrial wastewater treatment. Thus, further study to improve the photocatalytic activity of this immobilized TiO2 will be in our future work.

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Section: Introductionmentioning

confidence: 99%

Photocatalytic Study of New Immobilized TiO₂Technique Towards Degradation of Reactive Red 4 Dye

Ain

Jalil

Zaharudin

et al. 2016

MATEC Web of Conferences

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“…There are several general synthetic methodologies for the preparation of AAEMs [37][38]. The easiest is using inert polymers doped with concentrated aqueous KOH: Polybenzimidazole (PBI) [39][40][41][42][43], poly(vinyl alcohol) (PVA) [44], composite polymers such as PVA/hydroxyapatite (PVA/HAP) [45], quaternized-PVA/alumina (QPVA/Al 2 O 3 ) [46], PVA/titanium oxide (PVA/TiO 2 ) [47][48], chitosan and cross-linked chitosan [49][50][51], copolymers of epichlorohydrin and ethylene oxide [52], and cross-linked PVA/sulfosuccinic acid (10 wt.% SSA) [53] have all been doped with KOH and used as AAEMs. The invention US5569559 [54] describes the use of polar polymers (most preferred being polyethylene oxide) doped with alkaline metal hydroxides (such as KOH), alkaline-earth metal hydroxides or ammonium hydroxides such as tetrabutylammonium hydroxide.…”

Section: Preparation Of Alkaline Anion-exchange Membranes (Aaem)mentioning

confidence: 99%

Alkaline Anion Exchange Membranes for Fuel Cells- A Patent Review

Zeng¹,

Varcoe²

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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“…PEMFCs usually apply water-swollen ion-exchange polymer membranes as proton conducting electrolytes at highly water-swollen state [6][7][8] . In the last 20 years, direct ethanol fuel cells (DEFCs) have attracted considerable attention, as they offer several potential benefits, such as high efficiency, high power density, low or zero emission and reliability [9][10][11][12][13] . Ethanol is considered a liquid fuel from renewable sources (green fuel), presenting high power density (8000 W h kg -1 ), low emission of pollutants and easy distribution and storage, taking great logistical advantage over the hydrogen [13][14][15][16][17] .…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Polyelectrolytes Based on SPEEK/TiO2 for Direct Ethanol Fuel Cells (DEFCs)

Filho¹,

Santos²,

Gomes³

2014

Polímeros

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Proton-conducting hybrid membranes consisting of poly(ether ether ketone) sulfonated (SPEEK) and titanium oxide (TiO 2 ) were prepared using the sol-gel technique for application in direct ethanol fuel cells. The effect from TiO 2 incorporation on membrane properties such as ethanol uptake, pervaporation and proton conductivity was investigated. The uptake and permeated flux decreased with increasing content of TiO 2 . The ethanol permeability was about one order of magnitude smaller than Nafion  117. FTIR spectra indicated that PEEK was sulfonated and the second degradation temperature of SPEEK58 samples confirmed the titanium oxide incorporation. The proton conductivity in ethanol solution was of the order of 10 -3 S cm -1 when 4 or 8 wt% TiO 2 were added, and generally increased with addition of TiO 2 .

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Study of poly(vinyl alcohol)/titanium oxide composite polymer membranes and their application on alkaline direct alcohol fuel cell

Cited by 138 publications

References 39 publications

Photocatalytic Study of New Immobilized TiO₂Technique Towards Degradation of Reactive Red 4 Dye

Photocatalytic Study of New Immobilized TiO₂Technique Towards Degradation of Reactive Red 4 Dye

Alkaline Anion Exchange Membranes for Fuel Cells- A Patent Review

Nanostructured Polyelectrolytes Based on SPEEK/TiO2 for Direct Ethanol Fuel Cells (DEFCs)

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Study of poly(vinyl alcohol)/titanium oxide composite polymer membranes and their application on alkaline direct alcohol fuel cell

Cited by 138 publications

References 39 publications

Photocatalytic Study of New Immobilized TiO2Technique Towards Degradation of Reactive Red 4 Dye

Photocatalytic Study of New Immobilized TiO2Technique Towards Degradation of Reactive Red 4 Dye

Alkaline Anion Exchange Membranes for Fuel Cells- A Patent Review

Nanostructured Polyelectrolytes Based on SPEEK/TiO2 for Direct Ethanol Fuel Cells (DEFCs)

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Product

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Photocatalytic Study of New Immobilized TiO₂Technique Towards Degradation of Reactive Red 4 Dye

Photocatalytic Study of New Immobilized TiO₂Technique Towards Degradation of Reactive Red 4 Dye