The titania supported palladium nano catalysts (Pd@TiO2) are synthesized in one-step using a premixed stagnation swirl flame (SSF) with ultra-fine spray system. This novel SSF method, with features of short residence time and fast quenching, produces nanosized (< 2.5 nm) palladium particles being well dispersed on the 7-8 nm TiO2 particle surface, with an overall specific surface area of 210-220 m2/g.