2016
DOI: 10.5935/0100-4042.20160076
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IN SITUPREPARED TIO2NANOPARTICLES CROSS-LINKED SULFONATED PVA MEMBRANES WITH HIGH PROTON CONDUCTIVITY FOR DMFC

Abstract: Organic/inorganic membranes based on sulfonated poly(vinyl alcohol) (SPVA) and in situ prepared TiO 2 nanoparticles nanocomposite membranes with various compositions were prepared to use as proton exchange membranes in direct membrane fuel cells. Poly(vinyl alcohol) (PVA) was sulfonated and cross-linked separately by 4-formylbenzene-1,3-disulfonic acid disodium salt hydrate and glutaraldehyde. The ion exchange capacity and proton conductivity of the membranes increased with increasing amount of TiO 2 nanoparti… Show more

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Cited by 5 publications
(4 citation statements)
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“…On the basis of Table 8, the water management of CS/SPVA15 composite membrane was improved, where the water uptake and swelling degree were suppressed with the addition of inorganic filler (with the exception of CS/SPVA15‐TiO 2 ). Such phenomenon was abnormal because the inorganic filler addition aimed to effectively improve the water uptake due to its hygroscopic nature, thereby allowing the absorption and retention of water molecules 26,87 . The suppression in water sorption can be attributed to the strong interaction between the inorganic filler and polymer matrix.…”
Section: Resultsmentioning
confidence: 99%
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“…On the basis of Table 8, the water management of CS/SPVA15 composite membrane was improved, where the water uptake and swelling degree were suppressed with the addition of inorganic filler (with the exception of CS/SPVA15‐TiO 2 ). Such phenomenon was abnormal because the inorganic filler addition aimed to effectively improve the water uptake due to its hygroscopic nature, thereby allowing the absorption and retention of water molecules 26,87 . The suppression in water sorption can be attributed to the strong interaction between the inorganic filler and polymer matrix.…”
Section: Resultsmentioning
confidence: 99%
“…White and dark spots are observed in Figure 4. According to Solanki et al 26 and Gohel et al's 61 work with the impression of TiO 2 ‐modified PVA membrane, the white spots indicate the presence of TiO 2 particles, and the dark dots are the ionic clusters. Similar results are presented by Yang et al 62 and Gahlot et al 63 with the inorganic fillers of SiO 2 and SGO, respectively.…”
Section: Resultsmentioning
confidence: 99%
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