“…Indeed, chemical routes, commonly used for the preparation of Au/ZrO 2 catalysts, are limited to low concentrations of noble metal because the required processing temperature induces particle growth. The same restriction holds for the oxidation of glassy Zr-Pd [5,6], Zr-Au [7] and Zr-Au-Ag [8] alloys above 300 • C which has been shown to yield high surface catalysts.…”