McDermott Will & Emery LLP
Method of producing Pt alloy catalyst using protective coating of carbon layer and ozone
A method of producing a catalyst including a platinum-transition metal alloy on carbon, more specifically, a method of producing a carbon supported platinum alloy catalyst with high activity and superior durability includes coating a carbon-supported catalyst with an organic polymer as a material for a carbon layer, heat-treating the catalyst under a hydrogen-deficient atmosphere to convert the organic polymer into the carbon layer to prevent growth of catalyst particles caused by heat treatment through the carbon layer, allowing, at the same time, a transition metal supported together with platinum to be diffused into platinum particles to form a catalyst having a core-shell structure including a platinum skin layer on a surface thereof, and removing the carbon layer by ozone treatment after the heat treatment to induce an electrochemical reaction on the surface of the catalyst.
HYUNDAI MOTOR COMPANY INDUSTRY-ACADEMY CORPORATION FOUNDATION, YONSEI UNIVERSITY KIA MOTORS CORPORATION
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H01M H01M H01M Y02E H01M H01M
inventional inventional inventional additional inventional inventional
Han Sung Woong Hee You Jung Ju Hee Ju Ahn Won Jung Jun Tae
Kim Lee Song Lee Park Kim Kim