Ultra-low-loading pulsed-laser-deposited platinum catalyst films for polymer electrolyte membrane fuel cells

Mróz, W.; Budner, Bogusław; Tokarz, Wojciech; Piela, Piotr; Korwin-Pawlowski, Michael L.

doi:10.1016/j.jpowsour.2014.09.173

Cited by 25 publications

(20 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various physical vapor deposition techniques such as high-power impulse magnetron sputtering [2], sputtering [3,4], e-beam evaporation [5], dual ion-beam assisted deposition [6] and pulsed laser deposition (PLD) [7,8] have been pursued to achieve high power density with lower Pt loading. Physical vapor deposition techniques offer benefits over chemical techniques of being a one-step process that leads to the formation of a thin film of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is generally recognized that the ORR at the cathode is the bottleneck and the reduction of Pt usage at the cathode holds the key to lowering the overall MSPD. Previously, only Mròz et al [8] have reported using PLD to deposit Pt for the cathode of PEM fuel cell. They used PLD in vacuum to deposit Pt at a loading of 7 µg·cm −2 to achieve a maximum power density of 188 mW·cm −2 and a current density of 100 mA·cm −2 at 0.6 V. Although the Pt loading used was low, the power and current densities were too low to be practically useful.…”

Section: Introductionmentioning

confidence: 99%

“…For comparison, Table 2 provides a partial summary of mass-specific power densities reported previously. Some previous works achieved high cathode mass-specific power density by using sputtering or PLD, corresponding to high Pt utilization [2,8], but their current density and power density are too low to be practically useful. The need to use a fuel cell with a larger area in order to attain the required current and power for practical application will raise the cost of other parts of fuel cells, occupy a larger space, and consume more power when installed on an automotive.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pulsed Laser Deposition of Platinum Nanoparticles as a Catalyst for High-Performance PEM Fuel Cells

et al. 2016

View full text Add to dashboard Cite

Abstract:The catalyst layers for polymer-electrolyte-membrane (PEM) fuel cells were fabricated by deposition of platinum directly onto the gas diffusion layer using pulsed laser deposition (PLD). This technique reduced the number of steps required to synthesize the catalyst layers and the amount of Pt loading required. PEM fuel cells with various Pt loadings for the cathode were investigated. With a cathode Pt loading of 100 µg·cm −2 , the current density of a single cell reached 1205 mA·cm −2 at 0.6 V, which was close to that of a single cell using an E-TEK (trademark) Pt/C electrode with a cathode Pt loading of 400 µg·cm −2 . Furthermore, for a PEM fuel cell with both electrodes prepared by PLD and a total anode and cathode Pt loading of 117 µg·cm −2 , the overall Pt mass-specific power density at 0.6 V reached 7.43 kW·g −1 , which was five times that of a fuel cell with E-TEK Pt/C electrodes. The high mass-specific power density was due to that a very thin nanoporous Pt layer was deposited directly onto the gas diffusion layer, which made good contact with the Nafion membrane and thus resulted in a low-resistance membrane electrode assembly.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pulsed Laser Deposition of Platinum Nanoparticles as a Catalyst for High-Performance PEM Fuel Cells

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The second research line focuses on the development and optimization of the method for coating the catalyst layer, which is still an active research field. Pt loading and utilization in the catalyst layer can be enhanced via various coating methods, including inkjet printing [97], a combined electrospinning/electrospraying method [98], pulsed-laser-deposition [99], electrospraying of carbon-supported platinum nanowires [100], electrospraying [101], ultrasonic spraying (48 kHz [102], 120 kHz [103]), screen printing [104], and a piezo-electric printing technique [105].…”

Section: Catalyst Layermentioning

confidence: 99%

Recent Progress on the Key Materials and Components for Proton Exchange Membrane Fuel Cells in Vehicle Applications

Wang

Peng

et al. 2016

Energies

View full text Add to dashboard Cite

Fuel cells are the most clean and efficient power source for vehicles. In particular, proton exchange membrane fuel cells (PEMFCs) are the most promising candidate for automobile applications due to their rapid start-up and low-temperature operation. Through extensive global research efforts in the latest decade, the performance of PEMFCs, including energy efficiency, volumetric and mass power density, and low temperature startup ability, have achieved significant breakthroughs. In 2014, fuel cell powered vehicles were introduced into the market by several prominent vehicle companies. However, the low durability and high cost of PEMFC systems are still the main obstacles for large-scale industrialization of this technology. The key materials and components used in PEMFCs greatly affect their durability and cost. In this review, the technical progress of key materials and components for PEMFCs has been summarized and critically discussed, including topics such as the membrane, catalyst layer, gas diffusion layer, and bipolar plate. The development of high-durability processing technologies is also introduced. Finally, this review is concluded with personal perspectives on the future research directions of this area.

show abstract

“…When the PPA is hydrolyzed to phosphoric acid (in ambient air, in-situ and post-casting), a solgel transition occurs and a film forms. Sulfonated POSS (S-POSS, Figure 2) [11] has been shown to improve the conductivity and physical properties of sulfonated aromatic fuel cell membranes (principally sulfonated polyphenylsulfone, S-PPSU) [12][13], and hybrid polymer-ionic liquid fuel cell membranes [14][15]. In this study, the performance of the S-POSS nano-additive is evaluated in high temperature PBI-PA membranes fabricated in the PPA process, and it is shown that S-POSS improves in-plane conductivity and shear modulus relative to a control m-PBI membrane and also to m-PBI control membranes carrying either a non-sulfonated octaphenyl POSS additive or a silica additive.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Performance Evaluation of an S-POSS Based PBI Electrolyte for High Temperature PEM Fuel Cell Applications

Das

Berry

2016

ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology

View full text Add to dashboard Cite

In this paper, using patented nano-additive based polymer synthesis technology, a novel approach to the design and fabrication of high temperature proton exchange membrane (PEM) has been developed. The presence of sulfonated octaphenyl POSS (S-POSS) in a PBI-PA (polybenzimidazole-phosphoric acid) membrane results in a 40-50% increase in conductivity at 120-200°C relative to non-sulfonated silica or POSS control fillers at comparable weight percent filler loadings and PBI molecular masses, and also relative to unfilled PBI-PA membranes. In addition, the presence of S-POSS and silica both result in physical reinforcement of the membrane and increased its modulus and mechanical integrity, but only S-POSS offers the benefits of both increased conductivity and increased modulus. Isophthalic acid and 3,3'diaminobenzidine (DAB) were polymerized in the presence of polyphosphoric acid (PPA) and S-POSS nanoadditive, and the degree of polymerization was monitored by viscosity and torque change measurements. Molecular mass was determined by inherent viscosity measurements of samples removed from the reaction solution. Membranes were prepared by casting the reaction solution and allowing PPA to hydrolyze to PA under ambient conditions. The membranes were characterized for acid content, in-plane conductivity, tensile modulus and shear modulus, and were roll-milled to achieve the desired thickness for membrane electrode assembly (MEA) fabrication.

show abstract

Ultra-low-loading pulsed-laser-deposited platinum catalyst films for polymer electrolyte membrane fuel cells

Cited by 25 publications

References 31 publications

Pulsed Laser Deposition of Platinum Nanoparticles as a Catalyst for High-Performance PEM Fuel Cells

Pulsed Laser Deposition of Platinum Nanoparticles as a Catalyst for High-Performance PEM Fuel Cells

Recent Progress on the Key Materials and Components for Proton Exchange Membrane Fuel Cells in Vehicle Applications

Synthesis and Performance Evaluation of an S-POSS Based PBI Electrolyte for High Temperature PEM Fuel Cell Applications

Contact Info

Product

Resources

About