Next Article in Journal
Switchgrass-Based Bioethanol Productivity and Potential Environmental Impact from Marginal Lands in China
Next Article in Special Issue
In Situ Surface-Enhanced Raman Spectroscopy Study of the Electrocatalytic Effect of PtFe/C Nanocatalyst on Ethanol Electro-Oxidation in Alkaline Medium
Previous Article in Journal
The Influence of Micro-Oxygen Addition on Desulfurization Performance and Microbial Communities during Waste-Activated Sludge Digestion in a Rusty Scrap Iron-Loaded Anaerobic Digester
Previous Article in Special Issue
Effect of the Dendrimer Generation Used in the Synthesis of Pt-Ru Nanoparticles Supported on Carbon Nanofibers on the Catalytic Activity towards Methanol Oxidation
Open AccessFeature PaperArticle

A Nafion-Ceria Composite Membrane Electrolyte for Reduced Methanol Crossover in Direct Methanol Fuel Cells

1
CSIR—Central Electrochemical Research Institute-Madras Unit, CSIR Madras Complex, Taramani, Chennai 600113, India
2
Academy of Scientific and Innovative Research (AcSIR), CSIR—Central Electrochemical Research Institute, Karaikudi 630003, India
3
Mesha Energy Solutions Pvt. Ltd., Yeshwanthpur, Bengaluru 560022, India
*
Authors to whom correspondence should be addressed.
Academic Editor: Francesco Lufrano
Energies 2017, 10(2), 259; https://doi.org/10.3390/en10020259
Received: 7 January 2017 / Revised: 5 February 2017 / Accepted: 10 February 2017 / Published: 21 February 2017
(This article belongs to the Special Issue Direct Alcohol Fuel Cells)
An alternative Nafion composite membrane was prepared by incorporating various loadings of CeO2 nanoparticles into the Nafion matrix and evaluated its potential application in direct methanol fuel cells (DMFCs). The effects of CeO2 in the Nafion matrix were systematically studied in terms of surface morphology, thermal and mechanical stability, proton conductivity and methanol permeability. The composite membrane with optimum filler content (1 wt. % CeO2) exhibits a proton conductivity of 176 mS·cm−1 at 70 °C, which is about 30% higher than that of the unmodified membrane. Moreover, all the composite membranes possess a much lower methanol crossover compared to pristine Nafion membrane. In a single cell DMFC test, MEA fabricated with the optimized composite membrane delivered a peak power density of 120 mW·cm−2 at 70 °C, which is about two times higher in comparison with the pristine Nafion membrane under identical operating conditions. View Full-Text
Keywords: polymer electrolyte membrane; ceria; composite membranes; methanol crossover; direct methanol fuel cells polymer electrolyte membrane; ceria; composite membranes; methanol crossover; direct methanol fuel cells
Show Figures

Graphical abstract

MDPI and ACS Style

Velayutham, P.; Sahu, A.K.; Parthasarathy, S. A Nafion-Ceria Composite Membrane Electrolyte for Reduced Methanol Crossover in Direct Methanol Fuel Cells. Energies 2017, 10, 259.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop