Components for PEM Fuel Cells: An Overview

Abstract

Abstract. Fuel cells, as devices for direct conversion of the chemical energy of a fuel into electricity by electrochemical reactions, are among the key enabling technologies for the transition to a hydrogen-based economy. Among the various types of fuel cells, polymer electrolyte membrane fuel cells (PEMFCs) are considered to be at the forefront for commercialization for portable and transportation applications because of their high energy conversion efficiency and low pollutant emission. Cost and durability of PEMFCs are the two major challenges that need to be addressed to facilitate their commercialization. The properties of the membrane electrode assembly (MEA) have a direct impact on both cost and durability of a PEMFC.An overview is presented on the key components of the PEMFC MEA.. The success of the MEA and thereby PEMFC technology is believed to depend largely on two key materials: the membrane and the electro-catalyst. These two key materials are directly linked to the major challenges faced in PEMFC, namely, the performance, and cost. Concerted efforts are conducted globally for the past couple of decades to address these challenges. This chapter aims to provide the reader an overview of the major research findings to date on the key components of a PEMFC MEA.

Effects of Heat Treatment on the Catalytic Activity and Methanol Tolerance of Carbon-Supported Platinum Alloys

“…cell [3][4][5] . In this context, alloying platinum with transition metals is a primary approach and this strategy not only improves the ORR and methanol tolerance, but also decreases the cost [6][7][8][9][10] .…”

<i>Ab Initio</i> Study of Proton Transfer and Hydration in Phosphorylated Nata de Coco

“…A variety of different fuel cells are currently being studied and developed, each with their own advantages, weaknesses, and potential applications. In general, fuel cells generate energy efficiently (40-80%) and are environmentally friendly [1][2][3]. Fuel cells are also capable of continuous energy conversion as long as they are fed a sufficient supply of natural gas, hydrocarbons, or alcohol.…”

“…On the other hand, Nafion cannot be reused, leading to a high environmental and production cost [8] of the PEMFC. In addition, Nafion is susceptible to dehydration, leading to a fall in proton conductivity at high temperatures [2,[11][12].…”

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