Fuel Cell Gas Diffusion Layer Market: Overview
A gas diffusion layer (GDL) is a main part of a fuel cell. It is usually made of woven carbon cloth or non-woven carbon fiber paper. The primary objective of fuel cell GDL is to support the catalyst layer, which provides good mechanical strength, easy gas access to catalyst and enhance the electrical conductivity. The GDL is an important supporting material in a membrane electrode assembly (MEA). Most of the standard gas diffusion layers come with micro porous layer (MPL) and hydrophobic treatment (PTFE). The micro porous layer and hydrophobic treatment supports with the contact to the membrane and water management. The micro porous layer provides a smooth layer with enough surface area, for good contact with the membrane and catalyst.
The fuel cell gas diffusion layer acts as an electrode that enables diffusion of reactant over the catalyst layered membrane. The porosity and surface area of the gas diffusion layer enables the reactants in the path of bipolar plate to diffuse along the active area of the membrane. Also, with the amplified surface area that the fuel cell gas diffusion layer provides, transportation of electricity from each individual site in the membrane electrode assembly to the current collector increases. The fuel cell gas diffusion layer maintains the fuel cell moisture control.
Fuel Cell Gas Diffusion Layer Market: Key Segments
The global fuel cell gas diffusion layer market can be segmented based on type, application, and region. In terms of type, the market can be classified into carbon fiber paper substrates, carbon cloth substrates, and metal substrates. Carbon cloth substrates are created to cater to the requirements in hydrogen and direct methanol fuel cells. These layers are made by proprietary woven technology. Carbon fiber paper substrates are designed to meet the requirements in direct methanol fuel cells and hydrogen methanol fuel cell by proprietary non-woven technology. Metal substrates are mostly applied in methanol and ethanol fuel cells.
Based on application, the fuel cell gas diffusion layer market can be divided into polymer electrolyte fuel cells, hydrogen /oxygen air fuel cells, direct methanol fuel cells, and others. In the operation of polymer electrolyte fuel cell, gas diffusion layer plays a vital role. The gas diffusion layer helps in transporting reactants to the active phase of the electro catalysts and enabling water removal apart from the active sites to prevent flooding. The gas diffusion layer offers electron pathways from the catalyst layer back to rigid flow fields in hydrogen/oxygen air fuel cells. The gas diffusion layer is used to attain better cell performance to achieve superior water management for the system in direct methanol fuel cells.
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Fuel Cell Gas Diffusion Layer Market: Regional Outlook
In terms of region, the global fuel cell gas diffusion market can be segregated into North America, Asia Pacific, Europe, Latin America, and Middle East & Africa. North America is projected to lead the global market during the forecast period. The market in Asia Pacific is expanding at a substantial pace. Latin America and Middle East & Africa are expected to account for moderate share of the global fuel cell gas diffusion layer market.
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Fuel Cell Gas Diffusion Layer Market: Key Players
Key players operating in the global fuel cell gas diffusion layer market is include Toray Industries, INC., Mitsubishi Chemical Corporation., SGL Carbon SE, AvCarb, Gerard Daniel Worldwide, GKD Gebr. Kufferath AG, AMETEK Inc., Engineered Fibers Technology, LLC., and SAINERGY FUEL CELL INDIA PRIVATE LIMITED.
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