Performance of a passive direct ethanol fuel cell

Pereira, João Manuel; Falcão, D.S.; Oliveira, Vânia; Pinto, A.M.F.R.

doi:10.1016/j.jpowsour.2013.12.036

Cited by 75 publications

(42 citation statements)

References 28 publications

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“…Direct ethanol fuel cells (DEFCs) have emerged as an alternative sustainable power sources for portable devices due to their high energy density (8.00 kW h kg −1 ), low working temperatures, unrequired recharging by electric energy, and flexible system design . As a prototypical fuel for fuel cells (FCs), when compared with hydrogen, ethanol is easier to transport, handle, store, and does not require the use of an external fuel reformer . Moreover, ethanol is more advantageous than methanol as a primary alcohol fuel in FCs due to a lower toxicity and natural availability and renewability despite ethanol is costly than methanol .…”

Section: Introductionmentioning

confidence: 99%

“…As a prototypical fuel for fuel cells (FCs), when compared with hydrogen, ethanol is easier to transport, handle, store, and does not require the use of an external fuel reformer . Moreover, ethanol is more advantageous than methanol as a primary alcohol fuel in FCs due to a lower toxicity and natural availability and renewability despite ethanol is costly than methanol . Furthermore, previous studies have reported ethanol to be a promising alternative alcohol fuel with an electrochemical activity equivalent to methanol, and an ethanol crossover phenomenon is less severe than that for methanol …”

Section: Introductionmentioning

confidence: 99%

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New composite membrane poly(vinyl alcohol)/graphene oxide for direct ethanol–proton exchange membrane fuel cell

Zakaria

Kamarudin

Timmiati

et al. 2018

J of Applied Polymer Sci

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This study investigated a simple synthesis of a crosslinked poly(vinyl alcohol)/ graphene oxide composite membrane with lower ethanol permeability membrane for passive direct ethanol-proton exchange membrane fuel cells (DE-PEMFCs). The chemical and physical structure, morphologies, ethanol uptake and permeability, ion exchange capacities, water uptake, and proton conductivities were determined and found that transport properties of the membrane were affected by the GO loading. The composite membrane with optimum GO content (15 wt %) exhibited the highest proton conductivity of 9.5 × 10 −3 Scm −1 at 30 C, 3.24 × 10 −2 Scm −1 at 60 C, respectively and reduced ethanol permeability until 1.75 × 10 −7 cm 2 s −1 . In the passive DE-PEMFC, the power density at 60 C were obtained as 5.84 mW cm −2 higher than those by commercial Nafion 117 is 4.52 mW cm −2 .

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

New composite membrane poly(vinyl alcohol)/graphene oxide for direct ethanol–proton exchange membrane fuel cell

Zakaria

Kamarudin

Timmiati

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…Among the passive systems used, one finds air-breathing systems for the anode electrode [12], pressurized cannisters [13], and capillary liquid systems [14]. There are also passive cells running on different fuels, such as hydrogen [12,15,16], methanol [17], and ethanol [18]. In general, passive systems are more suitable for portable power sources [19].…”

Section: Proton Exchange Membrane Fuel Cellsmentioning

confidence: 99%

Fundamentals of Electrochemistry with Application to Direct Alcohol Fuel Cell Modeling

Sánchez-Monreal¹,

Vera²,

García-Salaberri³

2018

Proton Exchange Membrane Fuel Cell

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Fuel cell modeling is an inherently multiphysics problem. As a result, scientists and engineers trained in different areas are required to work together in this field to address the complex physicochemical phenomena involved in the design and optimization of fuel cell systems. This multidisciplinary approach forces researchers to become accustomed to new concepts. Electrochemical processes, for example, constitute the heart of a fuel cell. Accurate modeling of electrochemical reactions is therefore essential to successfully predict the performance of these devices. However, becoming familiar with the complex concepts of electrochemistry can be an arduous task for those who approach the study of fuel cells from fields other than chemical engineering. This process can extend over time and requires careful reading of many textbooks and papers, the most illuminating ones being hidden to the newcomer in a plethora of recent publications on the subject. The authors, who engaged in the study of fuel cells coming from the field of mechanical engineering, had to travel this road once and, with this contribution, would like to make the journey easier for those who come behind. As an illustrative example, the thermodynamic and electrochemical principles reviewed in this chapter are applied to a complex electrochemical system, the direct ethanol fuel cell (DEFC), reviewing recent work on this problem and suggesting future research directions.

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“…Currently, several fuels such as hydrogen [44], methane [45], methanol [46] and ethanol [47] have been proven to be taken as fuel in FCEVs, but hydrogen is still primary fuel in FECVs for China like many other countries [48]. Different to the others, hydrogen gas (H 2 ) can be produced from non-fossil reserves such as water and biomass, so H 2 -FCEVs could cut off the dependence of vehicle power on fossil-fuels.…”

Section: Reliability and Flexibility Of Fcevs For Chinamentioning

confidence: 99%

On reliability and flexibility of sustainable energy application route for vehicles in China

Sun

2015

Renewable and Sustainable Energy Reviews

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Performance of a passive direct ethanol fuel cell

Cited by 75 publications

References 28 publications

New composite membrane poly(vinyl alcohol)/graphene oxide for direct ethanol–proton exchange membrane fuel cell

New composite membrane poly(vinyl alcohol)/graphene oxide for direct ethanol–proton exchange membrane fuel cell

Fundamentals of Electrochemistry with Application to Direct Alcohol Fuel Cell Modeling

On reliability and flexibility of sustainable energy application route for vehicles in China

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