| http://www.w3.org/ns/prov#value | - A Pt/Rh/CZO catalyst was produced by using 1.80 g of a nitric acid solution of dinitrodiammineplatinum (Pt concentration 4.54 wt %) and 0.185 g of an aqueous solution of rhodium nitrate (Rh concentration 10 wt %) for a metal salt solution to be added dropwise to a CZO dispersion used in Comparative Example 4, and in the same steps other than the point as in Comparative Example 4.
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