Optimization of a porous carbon nanofiber layer for the membrane electrode assembly in DMFC

Zainoodin, Azran Mohd; Kamarudin, Siti Kartom; Daud, Wan Ramli Wan; Mohamad, Abu Bakar; Sahari, Jaafar

doi:10.1016/j.enconman.2015.06.014

Cited by 32 publications

(16 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Figure 3 shows that each point of the experiment fluctuated slightly over the x-axis. It can be concluded that the models and experimental results were considered satisfactory (Zainoodin et al, 2015). …”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 97%

See 1 more Smart Citation

Application of response surface methodology to optimize direct alcohol fuel cell power density for greener energy production

Charoen

Prapainainar

Sureeyatanapas

et al. 2017

Journal of Cleaner Production

View full text Add to dashboard Cite

Please cite this article as: Charoen K, Prapainainar C, Sureeyatanapas P, Suwannaphisit T, Wongamornpitak K, Kongkachuichay P, Holmes SM, Prapainainar P, Application of response surface methodology to optimize direct alcohol fuel cell power density for greener energy production, Journal of Cleaner Production (2016Production ( ), doi: 10.1016Production ( /j.jclepro.2016 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractEnergy production from direct alcohol fuel cells depends strongly on the operating conditions. In this research, the aim was to find the best conditions of direct methanol fuel cells (DMFC) and direct ethanol fuel cells (DEFC) to obtain the maximum power density with the response surface method using Program Design Expert 7.0.0. M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPTThree related independent variables, including operating temperature in the range of 30-70°C, alcohol flow rate in the range of 5-50 ml/min, and alcohol concentration in the range of 0.5-3 M, were covered. Nafion117 was used as an electrolyte and Pt-Ru and Pt were used as catalysts in anode and cathode, respectively. The effect of those variables on the maximum power density was illustrated in the form of quadratic models which predicted the appropriate operating conditions. The Nafion membrane was modified by adding mordenite (MOR) to improve its alcohol permeability. The result from response revealed that the higher operating temperatures and higher alcohol concentrations led to an increase in maximum power density, in both the DMFC and DEFC. The DMFC had a higher maximum power density and greater current than the DEFC had. This was because methanol was easier to oxidize than ethanol In addition, it was found that the MOR content of 1.47 wt% in the Nafion composite membrane reduced the alcohol permeability

show abstract

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 97%

“…In the first part of our experiment, the operating conditions to obtain the highest power density of DMFC and DEFC were optimized using CCD, which was a method in RSM (Zainoodin et al, 2015). Three variable -alcohol flow rate, alcohol concentration, and operating temperature -were included in the predicted model.…”

Section: The Central Composite Designmentioning

confidence: 99%

Application of response surface methodology to optimize direct alcohol fuel cell power density for greener energy production

Charoen

Prapainainar

Sureeyatanapas

et al. 2017

Journal of Cleaner Production

View full text Add to dashboard Cite

show abstract

“…Supplementary model fitting can be predicted by the standard deviation and determination coefficient, R 2 . A small standard deviation value and an R 2 that is approximate to unity is a good indicator that the model will predict a value for which the true result is only slightly different …”

Section: Resultsmentioning

confidence: 99%

“…Membranes performance was evaluated through single‐cell testing of passive alkaline DEFCs. The membrane showing the highest single‐cell performance was optimized via ion exchange membrane, ionic conductivity, and selectivity by using response surface methodology (RSM) . Finally, the optimum membrane was compared with Nafion 117.…”

Section: Introductionmentioning

confidence: 99%

Performance of quaternized poly(vinyl alcohol)‐based electrolyte membrane in passive alkaline DEFCs application: RSM optimization approach

Zakaria

Kamarudin

2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

Direct ethanol fuel cells (DEFCs) have emerged as potential tools for producing sustainable energy for portable devices due to their high energy density and their safe and nontoxic fuel source. However, the main problem of DEFCs is the sluggish oxidation of ethanol and fuel crossover from the anode side to the cathode side. Nafion membranes are commonly used as the electrolyte membrane in DEFCs, but they have a high production cost and high ethanol permeability. Thus, this work studies the performance of an alternative electrolyte membrane that is based on a quaternized poly(vinyl alcohol) (QPVA) polymer in passive alkaline DEFCs. The composition of the QPVA‐based membranes was optimized with potassium hydroxide (KOH) as an ion charge carrier and by the inorganic filler graphene oxide (GO). The membrane properties were influenced by KOH and GO. The effect of these two parameters on the performance of the QPVA‐based membranes was investigated for its ion‐exchange capacity and ionic conductivity and selectivity using the response surface methodology to optimize the membrane composition. The QPVA‐based membranes were characterized by Fourier transform infrared spectroscopy, X‐ray diffraction, and field emission scanning electron microscope. The membrane properties were influenced by KOH concentration doping and GO filler loading, which affect the membrane selectivity and, consequently, the overall performance of the passive alkaline DEFCs. Finally, the maximum power density of the passive DEFCs was improved from 5.8 to 11.3 W cm−2 at 30 °C, 13.7 mW cm−2 at 60 °C, and 19.3 mW cm−2 at 90 °C, respectively, in ambient air. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47526.

show abstract

“…The examples of alternative types of carbon materials utilized in dmfc anodes are carbon nanofiber (CNF) and carbon nanotubes (CNT); however, the high costs of these materials make them efficiently challenging for use in the large-scale production of DMFCs for commercial applications. 104 Moreover, graphene has been used extensively in fuel cells such as a support layer, electrocatalyst, and membrane. 105 According to Seger and Kamat, 106 graphene could perform as an effective anode support material for PEMFCs.…”

Section: Hydrogen Fuel/fuel Cellmentioning

confidence: 99%

Renewable energy harvesting with the application of nanotechnology: A review

et al. 2018

View full text Add to dashboard Cite

Summary It is believed that fossil fuel sources are exhaustible and also the major cause of greenhouse gas emission. Therefore, it is required to increase the portion of renewable energy sources in supplying the primary energy of the world. In this study, it is focused on application of nanotechnology in exploitation of renewable energy sources and the related technologies such as hydrogen production, solar cell, geothermal, and biofuel. Here, nanotechnologies influence on providing an alternative energy sources, which are environmentally benign, are comprehensively discussed and reviewed. Based on the literature, employing nanotechnology enhances the heat transfer rate in photovoltaic/thermal (PV/T) systems and modifies PV structures, which can improve its performance, making fuel cells much cost‐effective and improving the performance of biofuel industry through utilization of nanocatalysts, manufacturing materials with high durability and lower weight for wind energy industry.

show abstract

Optimization of a porous carbon nanofiber layer for the membrane electrode assembly in DMFC

Cited by 32 publications

References 30 publications

Application of response surface methodology to optimize direct alcohol fuel cell power density for greener energy production

Application of response surface methodology to optimize direct alcohol fuel cell power density for greener energy production

Performance of quaternized poly(vinyl alcohol)‐based electrolyte membrane in passive alkaline DEFCs application: RSM optimization approach

Renewable energy harvesting with the application of nanotechnology: A review

Contact Info

Product

Resources

About