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TiO2-Si- or SrTiO3-Si-impregnated PVA–based low-cost proton exchange membranes for application in microbial fuel cell.
- Source :
- Ionics; Dec2020, Vol. 26 Issue 12, p6195-6205, 11p
- Publication Year :
- 2020
-
Abstract
- Proton exchange membranes (PEMs) were synthesized in polyvinyl alcohol (PVA) matrix by impregnating TiO<subscript>2</subscript>-Si or SrTiO<subscript>3</subscript>-Si as proton exchanger for microbial fuel cells (MFCs). These PEMs were physically characterized, which approved the presence of hygroscopic oxides like SiO<subscript>2</subscript> to increase the proton transfer due to the formation of Si-H along with the water channelling through TiO<subscript>2</subscript> or SrTiO<subscript>3</subscript> induced microstructural modifications. Chemical characterization techniques further illustrated their comparable performance to the commercially available Nafion-117 and superior performance than bare PVA membrane. Polarization curves for MFCs using TiO<subscript>2</subscript>-Si- or SrTiO<subscript>3</subscript>-Si-based PVA membranes exhibited a power density of 6.16 ± 0.31 W m<superscript>−3</superscript> and 5.39 ± 0.27 W m<superscript>−3</superscript>, respectively. Power density of MFC with TiO<subscript>2</subscript>-Si membrane was comparable to that of the MFC using Nafion-117 (6.50 ± 0.33 W m<superscript>−3</superscript>). Thus, comparable properties and 30-folds less synthesis cost of the fabricated TiO<subscript>2</subscript>-Si-impregnated PVA membrane in comparison to Nafion, demonstrate its potential for real-life applications in MFC. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09477047
- Volume :
- 26
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Ionics
- Publication Type :
- Academic Journal
- Accession number :
- 146930233
- Full Text :
- https://doi.org/10.1007/s11581-020-03779-z