A heat treatment apparatus of membrane electrode assemblies includes a base, a first member extending from the base in a first direction, and a plurality of second members formed on the base in a radially outward direction of the first member and having inner surfaces facing the first member, where the first member or the second members includes a heat wire member, and membrane electrode assemblies are disposed between the first member and the second members.

Disclosed are a carbon-based carrier that is capable of increasing catalyst activity as much as that of a porous type while having excellent durability unique to that of a solid type, a catalyst comprising same, a membrane-electrode assembly comprising same, and a method for preparing same. The carbon-based carrier for a fuel cell catalyst of the present invention is a solid-type carrier, and has an outer surface area of 100-450 m.sup.2/g, a mesopore volume of 0.25-0.65 cm.sup.3/g, and a micropore volume of 0.01-0.05 cm.sup.3/g.

Herein discussed is an electrode comprising a copper or copper oxide phase and a ceramic phase, wherein the copper or copper oxide phase and the ceramic phase are sintered and are inter-dispersed with one another. Further discussed herein is a method of making a copper-containing electrode comprising: (a) forming a dispersion comprising ceramic particles and copper or copper oxide particles; (b) depositing the dispersion onto a substrate to form a slice; and (c) sintering the slice using electromagnetic radiation.

Method of preparing a proton exchange membrane (PEM) include mixing a precursor of a perfluorosulfonic acid polymer with a second material to form a precursor material in a reduced humidity zone; extruding the precursor material under reduced humidity to form a filament; 3D printing the PEM with the filament; converting the precursor of the perfluorosulfonic acid polymer to the perfluorosulfonic acid polymer within the PEM; and coating the PEM.

An electrolyte membrane of a membrane-electrode assembly is formed by a manufacturing method yielding a membrane with improved chemical durability. The manufacturing method includes preparing an antioxidant solution, mixing the antioxidant solution and a first ionomer dispersion solution, drying the mixture to produce a composite having an antioxidant and a first ionomer surrounding the antioxidant, introducing and mixing the composite with a second ionomer dispersion solution, and applying that mixture to a substrate and drying the mixture to manufacture an electrolyte membrane. The resulting electrolyte membrane includes the composite having an antioxidant in an ionic state and a first ionomer surrounding the antioxidant.

An electrochemical installation operating at high temperature includes a plurality of stacks for carrying out electrochemical reactions, a heating furnace comprising a chamber intended for receiving the stacks, and a heater. The installation includes at least one rack including a self-supporting structure including a plurality of superimposed stages of stacks and/or including a plurality of self-supporting structures defining a plurality of superimposed stages of stacks. Each self-supporting structure comprises a fluid distributor configured to supply each stack with at least one fluid and/or to collect at least one fluid from each stack. The chamber is configured to contain at least one rack, the stack stages of the one rack or each rack contained in the chamber being intended for being commonly heated by the heater.

A heat treatment apparatus of membrane electrode assemblies includes a base, a first member extending from the base in a first direction, and a plurality of second members formed on the base in a radially outward direction of the first member and having inner surfaces facing the first member, where the first member or the second members includes a heat wire member, and membrane electrode assemblies are disposed between the first member and the second members.

Disclosed is a method of manufacturing an electrolyte membrane for fuel cells. The method includes preparing an electrolyte layer including one or more ion conductive polymers that form a proton movement channel, and permeating a gas from a first surface of the electrolyte layer to a second surface of the electrolyte layer.

A post-processing method of a polymer electrolyte membrane, which anneals and stretches a polymer electrolyte membrane including a hydrocarbon-based copolymer in a vapor atmosphere of a solvent.

A heat treatment apparatus for a fuel cell membrane-electrode assembly is provided. The heat treatment apparatus includes a hot press installed on upper and lower sides of feeding path to move in the vertical direction on a frame and which presses the electrode catalyst layers on upper and lower surfaces of the membrane-electrode assembly sheet. A plurality of gripper modules are installed at set intervals in a base member along a feeding direction of the membrane-electrode assembly sheet, and selectively grip both side edges of the membrane-electrode assembly sheet. A driving unit reciprocally moves the base member in a direction perpendicular to the feeding direction of the membrane-electrode assembly sheet and in the feeding direction of the membrane-electrode assembly sheet.