首页>
外国专利>
Method for preparing pyrochlore oxide catalyst and method for producing electrode catalyst for fuel cell
Method for preparing pyrochlore oxide catalyst and method for producing electrode catalyst for fuel cell
展开▼
机译:制备烧绿石氧化物催化剂的方法和制备用于燃料电池的电极催化剂的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A pyrochlore-type oxide represented by a general formula A2B2O7-Z is prepared by precipitate formation, where A and B each represent a metal element, where Z represents a number of at least 0 and at most 1, where A contains at least one element selected from a group consisting of Pb, Sn, and Zn, and where B contains at least one element selected from a group consisting of Ru, W, Mo, Ir, Rh, Mn, Cr, and Re. Impurities are then sufficiently removed through washing and drying processes, and the pyrochlore-type oxide is calcined under controlled conditions. This allows the crystallinity of the pyrochlore-type oxide, which contained amorphous parts immediately after the production of the precipitate, to be increased so that the resistance to acid can be improved while preventing particle aggregation.
展开▼