scholarly journals Platinum utilization in proton exchange membrane fuel cell and direct methanol fuel cell - Review

2019 ◽  
Vol 9 (4) ◽  
pp. 281-310 ◽  
Author(s):  
Madhavi Bandapati ◽  
Sanket Goel ◽  
Balaji Krishnamurthy
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Proton Exchange Membrane ◽  
Energy Systems ◽  
High Energy ◽  
Proton Exchange ◽  
Direct Methanol ◽  
Pt Utilization ◽  
Exchange Membrane ◽  
Methanol Fuel Cell

Proton exchange membrane fuel cell (PEMFC) and direct methanol fuel cell (DMFC) are increasingly used as substitutes to conventional energy systems. Their compact design, high energy density and efficient energy-conversion offer several advantages over existing energy systems with potential for use in a variety of applications. However, performance, robustness and cost are the key challenges to overcome before fuel cells can be commercialized. Even though the use of platinum (Pt) and platinum group metal (PGM) alloy catalysts provide higher performance and durability, they are at the same time the largest cost components which need to be addressed. This paper reviews different approaches adopted to enhance Pt utilization such as reducing Pt loading, decreasing Pt particle size, developing Pt free metallic alloy catalyst, improving Pt dispersion, developing membrane electrode assembly (MEA) fabrication methods, increasing mass-transport at the electrode surface and modifying the catalyst support materials. Finally, the performance optimization efforts for Pt utilization are summarized with insights into probable directions of future research in this area.

Fabrication of a micro-direct methanol fuel cell using microfluidics

2012 ◽  
Vol 66 (12) ◽  
Author(s):  
Chumphol Yunphuttha ◽  
Win Bunjongpru ◽  
Supanit Porntheeraphat ◽  
Atchana Wongchaisuwat ◽  
Charndet Hruanun ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Flow Rate ◽  
Direct Methanol Fuel Cell ◽  
Proton Exchange Membrane ◽  
Platinum Catalyst ◽  
Proton Exchange ◽  
Direct Methanol ◽  
Poly Ethylene ◽  
Exchange Membrane ◽  
Methanol Fuel Cell

AbstractA direct-methanol fuel cell containing three parts: microchannels, electrodes, and a proton exchange membrane (PEM), was investigated. Nafion resin (NR) and polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (PS) were used as PEMs. Preparation of PEMs, including compositing with other polymers and their solubility, was performed and their proton conductivity was measured by a four point probe. The results showed that the 5 % Nafion resin has lower conductivity than the 5 % PS solution. The micro-fuel cell contained two acrylic channels, PEM, and two platinum catalyst electrodes on a silicon wafer. The assembled micro-fuel cells used 2 M methanol at the flow rate of 1.5 mL min−1 in the anode channel and 5 × 10−3 M KMnO4 at the flow rate of 1.5 mL min−1 in the cathode channel. The micro-fuel cell with the electrode distance of 300 μm provided the power density of 59.16 μW cm−2 and the current density of 125.60 μA cm−2 at 0.47 V.

scholarly journals Proton Exchange Membrane Based on Sulfonated Poly (Aromatic Imide-Co-Aliphatic Imide) for Direct Methanol Fuel Cell

2017 ◽  
Vol 21 (1) ◽  
Author(s):  
Phornpussadee Umsarika ◽  
Sairung Changkhamchom ◽  
Nophawan Paradee ◽  
Anuvat Sirivat ◽  
Pitt Supaphol ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Direct Methanol ◽  
Exchange Membrane ◽  
Methanol Fuel Cell ◽  
Sulfonated Poly
Sign in / Sign up

Export Citation Format

Share Document