TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Layer: The coating layer differing in functionality from the catalyst layer, is a non-catalyst layer free of noble-metal element. The non-catalyst layer functioning as a heat insulation layer, is coated at the lower layer or upper layer of the catalyst layer. The coating layer is formed by coating a composition containing a stable oxide, with heat.Preferred Property: The ratio of the coating amount of the non-catalyst layer with respect to coating amount of the catalyst layer is 0.5-2. The ratio of the coating thickness of the non-catalyst layer with respect to the coating thickness of the catalyst layer is also 0.5-2. The non-catalyst layer has water-vapor absorption capacity.Preferred Powder: The catalytically active powder further contains a cerium element, and group 4 or group 5 element of periodic table.Preferred Element: The noble-metal element is platinum element. The group (4 or 5) element of periodic table is niobium element.    TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred System: The fuel modification-type hydrogen generation system further has hydrogen extractor. EXAMPLE - Dinitro diamino platinum complex salt (in g) (13.2) containing platinum element (8.451 mass%) by metal conversion was made into an aqueous solution (1 L), using cerium zirconium complex oxide containing cerium and zirconium in molar ratio of 68/32 and having specific surface area of 70 m2/g. The platinum element was impregnated, and then catalytic active powder was obtained after stirring, drying and baking at 400 degrees C for 1 hour. The obtained active powder (200) was mixed with aluminum sol and water (1 L), and ground to obtain active powder slurry. The obtained active powder slurry was coated in the upper layer of honey-comb monolith support made from cordierite, dried at 200 degrees C, and baked at 500 degrees C to obtain catalyst layer of shift catalyst. The coating amount of the active powder to the monolith support was 12 g, and the content of platinum element occupied to the shift catalyst whole product was 1 g/L.