Discussion on the Challenges of DMFC Catalyst Loading Process for Mass Production

Zheng, Wukui; Suominen, Arho; Tuominen, Aulis

doi:10.1016/j.egypro.2012.08.042

Cited by 23 publications

(12 citation statements)

References 40 publications

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“…Till now, several catalyst loading processes have been adopted that include spraying, sputtering, screen printing, decaling, electrodeposition, etc. An overview of different catalyst loading processes can be found in ref .…”

Section: Introductionmentioning

confidence: 99%

Anode Catalysts for Direct Methanol Fuel Cells in Acidic Media: Do We Have Any Alternative for Pt or Pt–Ru?

et al. 2014

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Section: Introductionmentioning

confidence: 99%

Anode Catalysts for Direct Methanol Fuel Cells in Acidic Media: Do We Have Any Alternative for Pt or Pt–Ru?

et al. 2014

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“…Most often in catalyst design and MEA, the deposition of the catalyst onto the fuel cell electrode is overlooked and can greatly affect the overall performance. Various methods have been implemented including painting, sputtering , screen‐printing , spraying , and spreading . Our previous study involved the varying of individual catalyst layer thickness on the anode electrode of the DMFC.…”

Section: Introductionmentioning

confidence: 77%

Effect of the Cathode Catalyst Layer Thickness on the Performance in Direct Methanol Fuel Cells

Glass

Prakash

2019

Electroanalysis

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Catalyst deposition control is one of the overlooked areas of fuel cell fabrication and research that can affect the overall performance and cost of the fuel cell to manufacture for mass production. The effect of the different individual catalyst layer thicknesses and loadings of the cathode compartment of a direct methanol fuel cell (DMFC) was investigated. The drawdown method was performed at thicknesses varying from 1 mil to 8 mils with platinum loadings ranging from 0.25 mg cm−2 to 2.0 mg cm−2. The membrane electrode assemblies (MEAs) with thicker individual layers (8 mil and 4 mil) performed better overall compared to the ones prepared with thinner individual layers (1 mil). The power density maxima for the different loading levels followed an exponential decrease of platinum utilization at the higher loading levels. The painted MEAs tended to display the similar performance characteristics as the drawdown MEA layers closest to the thickness at the respective loadings.

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“…Since this is time consuming, the spraying method may not be suitable for high catalyst loading. 237 In the DTM method, the catalyst layers are deposited on Tefl on decal substrates and are subsequently transferred to a dry membrane during the hot-pressing of the MEA. The catalyst layers in MEAs fabricated by DTM tend to exhibit relatively poor interfacial contact with the membrane.…”

Section: Mea Fabricationmentioning

confidence: 99%

A review on direct methanol fuel cells–In the perspective of energy and sustainability

Prabhuram

Malik

Pylypenko

et al. 2015

MRS Energy & Sustainability

165

106

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The direct methanol fuel cell (DMFC) enables the direct conversion of the chemical energy stored in liquid methanol fuel to electrical energy, with water and carbon dioxide as by-products. Compared to the more well-known hydrogen fueled polymer electrolyte membrane fuel cells (H 2 -PEMFCs), DMFCs present several intriguing advantages as well as a number of challenges.This review examines the technological, environmental, and policy aspects of direct methanol fuel cells (DMFCs). The DMFC enables the direct conversion of the chemical energy stored in liquid methanol fuel to electrical energy, with water and carbon dioxide as byproducts.Compared to the more well-known hydrogen fueled PEMFCs, DMFCs present several intriguing advantages as well as a number of challenges. Factors impeding DMFC commercialization include the typically lower effi ciency and power density, as well as the higher cost of DMFCs compared to H 2 -based fuel cells. Because of these issues, it is likely that DMFC technology will fi rst be commercialized for small portable power applications (e.g., the displacement of batteries in consumer electronic applications), where the shorter product lifetimes ( ∼ 1-2 yrs for a battery versus 8-15 yrs for a car) and the much higher price points ( ∼ $10/W for a laptop battery vs. ∼ $0.05/W for a vehicle engine) provide a more attractive entry point. While such applications are not likely to signifi cantly impact the global energy sustainability picture, they provide an important initial market for fuel cell technology. As such, in this review, we provide an overview of recent research and the challenges to the development of DMFCs for both the portable (shorter-term) and transport (longer-term) sectors.

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Discussion on the Challenges of DMFC Catalyst Loading Process for Mass Production

Cited by 23 publications

References 40 publications

Anode Catalysts for Direct Methanol Fuel Cells in Acidic Media: Do We Have Any Alternative for Pt or Pt–Ru?

Anode Catalysts for Direct Methanol Fuel Cells in Acidic Media: Do We Have Any Alternative for Pt or Pt–Ru?

Effect of the Cathode Catalyst Layer Thickness on the Performance in Direct Methanol Fuel Cells

A review on direct methanol fuel cells–In the perspective of energy and sustainability

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