PREPARATION OF PLATINUM NANO CATALYST SUPPORTED ON CARBON NANOTUBE BY ELECTROCHEMICAL DEPOSITION

摘要

Provided is a method for preparing a platinum nano-catalyst in a highly dispersed state, which improves performances of an electrode for a fuel cell. The method for preparing a platinum nano-catalyst using a carbon nano-tube as a support by electrochemical deposition, comprises the steps of: (A) growing a carbon nano-tube on a graphite paper directly by chemical vapor deposition; (B) performing pretreatment of the carbon nano-tube grown on the graphite paper for removal of impurities and modification of a surface structure; (C) performing treatment of chloroplatinic acid as a platinum precursor, which is dissolved in aqueous solution of sulfuric acid via an electrochemical process to prepare a platinum nano-catalyst.