A Direct Methanol Fuel Cell Based on a Novel Low-Cost Nanoporous Proton-Conducting Membrane

Peled, E.; Duvdevani, T.; Aharon, Anat; Melman, Artem

doi:10.1149/1.1391198

Cited by 92 publications

(21 citation statements)

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“…Potentially, these requirements appear to be met by new classes of solid polymer electrolytes that show promising properties even though there has been no clear demonstration of their use in DMFC. Some of the membranes investigated so far are: sulfonated poly (ether ether ketone) and poly (ether sulfone) [133], polyvinylidene fluoride [134], styrene grafted and sulfonated membranes [135], zeolites gel films (tin mordenite) and/or membranes doped with heteropolyanions [136].…”

Section: Technology Development and Its Prospects Proton Conducmentioning

confidence: 99%

DMFCs: From Fundamental Aspects to Technology Development

Aricò¹,

Srinivasan

Antonucci³

2001

Fuel Cells

1,453

884

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This review paper describes recent developments in both the fundamental and technological aspects of direct methanol fuel cells (DMFCs). Most previous studies in this field have dealt with fundamental aspects, whereas in recent years, the technology of these devices has become the object of significant interest. This is mainly due to the fact that a probable application of DMFCs in portable power sources and in hybrid electrical vehicles has only recently been envisaged. The section on fundamentals is particularly focused on the electrocatalysis of the methanol oxidation reaction and oxygen electroreduction. In this regard, particular relevance is given to the interpretation of the promoting effect on Pt of additional elements and some aspects of the electrocatalysis of oxygen reduction in the presence of methanol crossover have been treated. The technology section deals with the development of both components and devices. Particular emphasis is given to the development of high surface area electrocatalysts and alternative electrolyte membranes to Nafion, also the fabrication methodologies for the M&E assembly have been discussed. The last part of the paper describes the recent efforts in developing DMFC stacks for both portable and electro‐traction applications. The current status of the technology in this field is presented and some important technical and economical challenges are been discussed.

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Section: Technology Development and Its Prospects Proton Conducmentioning

confidence: 99%

DMFCs: From Fundamental Aspects to Technology Development

Aricò¹,

Srinivasan

Antonucci³

2001

Fuel Cells

1,453

884

View full text Add to dashboard Cite

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“…SFC Energy use DMFCs, which are known for having a high cost. This is due to high platinum loadings and also because of specialised materials that are used, for example the Nafion membrane [45,46]. The company mainly concentrates on low power FCs typically between 25 We100 W, therefore keeping overall costs relevantly low.…”

Section: Methodsmentioning

confidence: 99%

Fuel cell added value for early market applications

Hardman

Chandan

Steinberger‐Wilckens

2015

Journal of Power Sources

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h i g h l i g h t sCase studies of SFC Energy and Bloom Energy are presented. These two companies have seen notable success in the marketing of fuel cells (FCs). FCs for aircraft APUs are discussed as a promising perspective application. FCs for fire prevention is discussed as another perspective application. FCs should be marketed as solutions to many problems, not just power providers. a b s t r a c tFuel Cells are often considered in the market place as just power providers. Whilst fuel cells do provide power, there are additional beneficial characteristics that should be highlighted to consumers. Due to the high price premiums associated with fuel cells, added value features need to be exploited in order to make them more appealing and increase unit sales and market penetration. This paper looks at the approach taken by two companies to sell high value fuel cells to niche markets. The first, SFC Energy, has a proven track record selling fuel cell power providers. The second, Bloom Energy, is making significant progress in the US by having sold its Energy Server to more than 40 corporations including Wal-Mart, Staples, Google, eBay and Apple. Further to these current markets, two prospective added value applications for fuel cells are discussed. These are fuel cells for aircraft APUs and fuel cells for fire prevention. These two existing markets and two future markets highlight that fuel cells are not just power providers. Rather, they can be used as solutions to many needs, thus being more cost effective by replacing a number of incumbent systems at the same time.

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“…Development of novel membranes with low methanol crossover would surely increase cell performance and fuel efficiency [14,16,[52][53][54]. Alternatively, Wang and co-workers [9,10,55] proposed to modify the anode backing structure to mitigate methanol crossover.…”

Section: Mass Transport Phenomena 41 Methanol Crossovermentioning

confidence: 99%

Two-phase microfluidics, heat and mass transport in direct methanol fuel cells

Wang

2005

Transport Phenomena in Fuel Cells

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This chapter provides an overview of the latest developments in direct methanol fuel cell (DMFC) technology. We begin by describing major technological challenges that DMFCs presently face for portable power, and demonstrate that the fundamental transport processes of methanol, water and heat, along with methanol oxidation kinetics, hold the key to successfully address these challenges. We then describe complementary experimental and modeling work to elucidate the critical transport phenomena, including two-phase microfluidics, heat and mass transport. We explain how the better understanding of these basic transport phenomena leads to a paradigm shift in the design of portable DMFCs, and show experimental evidence of surprisingly low methanol and water crossover through a very thin membrane, Nafion ® 112. Fuel efficiency resulting from low methanol crossover reaches 78% and net water transport coefficient through the membrane is found to be less than unity. These salient characteristics will enable highly concentrated methanol to be used directly and hence lead to much higher energy density for next-generation portable DMFCs. Finally, the latest research on micro-DMFCs is reviewed.

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A Direct Methanol Fuel Cell Based on a Novel Low-Cost Nanoporous Proton-Conducting Membrane

Cited by 92 publications

References 0 publications

DMFCs: From Fundamental Aspects to Technology Development

DMFCs: From Fundamental Aspects to Technology Development

Fuel cell added value for early market applications

Two-phase microfluidics, heat and mass transport in direct methanol fuel cells

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