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METHOD FOR MANUFACTURING CORE-SHELL TYPE SUPPORTED CATALYSTS AND CORE-SHELL TYPE SUPPORTED CATALYSTS FORMED THEREBY
METHOD FOR MANUFACTURING CORE-SHELL TYPE SUPPORTED CATALYSTS AND CORE-SHELL TYPE SUPPORTED CATALYSTS FORMED THEREBY
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机译:制造核心-壳型支撑催化剂的方法和由此形成的核心-壳型支撑催化剂
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摘要
A method for manufacturing a core-shell type supported catalyst, wherein alloy particles having a core-shell structure with a different interior and exterior are supported on a complex carbon support. The method includes: 1) dissolving and dispersing a carbon support in a solvent using a stabilizer; 2) dissolving a core precursor in the solution, and adding a strong reducing agent to reduce and support a transition metal of the core precursor on a surface of the carbon support; 3) filtering and washing the carbon support on which the transition metal is supported; 4) re-dispersing the filtered and washed carbon support in a shell precursor aqueous solution; and 5) adding a weak reducing agent to the solution of step 4) at 60˜80° C. so that metal ions of a shell precursor are selectively reduced and deposited on the transition metal.
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