Columbian Chemicals Company

Bollepalli Srinivas

A composition comprising particulate carbonaceous material and a conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode assemblies, and fuel cells. A method for preparing the composition comprises oxidatively polymerizing with ozone a monomer of a conducting polymer containing hetero atoms in the presence of a carbonaceous material. The method grafts the conducting polymer to the carbonaceous material. The method can further comprise metallizing the polymer-grafted carbonaceous material.

Conducting polymer-grafted carbon material for fuel cell applications

The present invention provides methods for the incorporation of sulfonate functional groups onto the surface of carbonaceous compounds and materials, and similarly provides several surface modified carbonaceous compounds and materials resulting therefrom.

Sulfonated carbonaceous materials

A composition comprising particulate carbonaceous material and a conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode assemblies, and fuel cells. A method for preparing the composition comprises oxidatively polymerizing a monomer of a conducting polymer containing hetero atoms in the presence of a carbonaceous material wherein the oxidative polymerization takes place in the presence of a metal-containing oxidizing agent. The method grafts the conducting polymer to the carbonaceous material while essentially simultaneously metallizing the composition.

Metallized conducting polymer-grafted carbon material and method for making

A composition comprising particulate carbonaceous material and a conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode assemblies, and fuel cells. A method for preparing the composition comprises oxidatively polymerizing a monomer of a conducting polymer containing hetero atoms in the presence of a carbonaceous material. The method grafts the conducting polymer to the carbonaceous material. The method can further comprise metallizing the polymer-grafted carbonaceous material.

The present invention provides a method for the preparation of carbonaceous materials comprising a plurality of gamma-keto-carboxyl containing functional groups surface bonded thereto, and further provides several surface modified carbonaceous materials resulting therefrom.

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Marietta, GA, United States of America

Bollepalli Srinivas