Composite anode electrode based on iridium oxide promoter for direct methanol fuel cells

Baglio, V.; Sebastián, David; D’Urso, Claudia; Stassi, A.; Amin, R.S.; El–Khatib, K.M.; Aricò, A.S.

doi:10.1016/j.electacta.2013.10.141

Cited by 30 publications

(22 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These developments have produced a synergistic effect on the cost reduction. The improvements in DMFC's technology achieved in DURAMET [5,[13][14][15][16][17], at a small production scale, can be summarised as follows:…”

Section: Assemblingmentioning

confidence: 99%

See 1 more Smart Citation

Cost Analysis of Direct Methanol Fuel Cell Stacks for Mass Production

et al. 2016

View full text Add to dashboard Cite

Fuel cells are very promising technologies for efficient electrical energy generation. The development of enhanced system components and new engineering solutions is fundamental for the large-scale deployment of these devices. Besides automotive and stationary applications, fuel cells can be widely used as auxiliary power units (APUs). The concept of a direct methanol fuel cell (DMFC) is based on the direct feed of a methanol solution to the fuel cell anode, thus simplifying safety, delivery, and fuel distribution issues typical of conventional hydrogen-fed polymer electrolyte fuel cells (PEMFCs). In order to evaluate the feasibility of concrete application of DMFC devices, a cost analysis study was carried out in the present work. A 200 W-prototype developed in the framework of a European Project (DURAMET) was selected as the model system. The DMFC stack had a modular structure allowing for a detailed evaluation of cost characteristics related to the specific components. A scale-down approach, focusing on the model device and projected to a mass production, was used. The data used in this analysis were obtained both from research laboratories and industry suppliers specialising in the manufacturing/production of specific stack components. This study demonstrates that mass production can give a concrete perspective for the large-scale diffusion of DMFCs as APUs. The results show that the cost derived for the DMFC stack is relatively close to that of competing technologies and that the introduction of innovative approaches can result in further cost savings.

show abstract

Section: Assemblingmentioning

confidence: 99%

“…(2) Lower noble-metal loading in the catalytic layers (Catalyst-Coated Membrane-CCM) [13][14][15][16];…”

Section: Assemblingmentioning

confidence: 99%

Cost Analysis of Direct Methanol Fuel Cell Stacks for Mass Production

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Either way, DMFCs have recently emerged as a promising power source for low‐power, low‐temperature systems such as mobile devices (laptop computers, cell phones, etc.) as well as back‐up power for small‐scale military and marine applications . The main advantage of DMFC over PEMFC is the ease of production, transportation, and storage of methanol when compared with hydrogen.…”

Section: Introductionmentioning

confidence: 99%

Effect of polymer sulfonation on the proton conductivity and fuel cell performance of polyvinylalcohol‐mordenite direct methanol fuel cell membranes

Üçtuğ

Nijem

2017

Asia-Pacific J Chem Eng

View full text Add to dashboard Cite

Sulfonated polyvinylalcohol‐mordenite (SPVA‐MOR) membranes for direct methanol fuel cell use were synthesized and characterized. It had earlier been found out that polyvinylalcohol‐mordenite (PVA‐MOR) membranes, while having excellent methanol permeability and modest proton conductivity values, had inferior direct methanol fuel cell performances than Nafion™. Sulfonating the polyvinylalcohol matrix had been suggested to improve the proton conductivity. In this work, polyvinylalcohol powder was sulfonated by using propane sultone as the sulfonating agent prior to the membrane synthesis. Morphological analyses revealed that the zeolite particles mixed homogeneously within the polymer matrix. Sulfonating the polymer slightly decreased both water and methanol uptakes. Both in PVA‐MOR and SPVA‐MOR membranes, water uptake turned out to be higher than the methanol uptake. SPVA‐MOR membranes were found to have an average proton conductivity of 0.052 S·cm−1 when compared with the 0.036 S·cm−1 of PVA‐MOR membranes, while Nafion™ has a proton conductivity of approximately 0.1 S·cm−1. The increase in the proton conductivity upon sulfonation despite the decrease in water uptake was explained by the dominance of the Grotthuss mechanism over the vehicular mechanism for proton conductivity. Fuel cell test results showed that while SPVA‐MOR membranes cannot outperform Nafion™, they give higher power output than PVA‐MOR membranes, especially at low temperatures and high methanol concentrations. © 2017 Curtin University of Technology and John Wiley & Sons, Ltd.

show abstract

“…Among all the catalysts for ethanol electrooxidation, noble metals i.e. platinum (Pt), [3][4][5] palladium (Pd), 6,7 ruthenium (Ru), 8,9 rhodium (Rh) 9,10 and iridium (Ir) 11,12 along with their combinations have been widely investigated because of their superior performance. Compared with Pt, Pd has higher abundance and shows much more active electrocatalytic ability in basic solutions due to its higher oxophilicity and relatively inert nature.…”

Section: Introductionmentioning

confidence: 99%