Niobium oxide (Nb₂O₅) nanoparticles supported bimetallic nanocatalysts (Ir_xPt_1-x/Nb₂O₅) for low temperature formaldehyde oxidation were obtained. The as-synthesized Ir_xPt_1-x/Nb₂O₅ nanocatalysts exhibited higher activities and stability than bare Nb₂O₅ for catalytic formaldehyde oxidation. The Ir:Pt ratio have considerable effects on the activity of the nanocatalyst, and the Ir_0.5Pt_0.5/Nb₂O₅ has the highest catalytic activity among all the Nb₂O₅ supported bimetallic nanocatalysts, and the temperature for 100% formaldehyde oxidation reached as low as 30 °C. The catalytic stability of Ir_0.5Pt_0.5/Nb₂O₅ nanocatalyst exhibited that after four reaction cycles and no catalyst deactivation was detected after 36 h operation.

获得了用于低温甲醛氧化的氧化铌（Nb ₂ O ₅）纳米粒子负载的双金属纳米催化剂（Ir _x Pt _1-x / Nb ₂ O ₅）。合成后的Ir _x Pt _1-x / Nb ₂ O ₅纳米催化剂在催化甲醛氧化方面比裸Nb ₂ O ₅表现出更高的活性和稳定性。Ir：Pt比对纳米催化剂的活性有很大影响，Ir _0.5 Pt _0.5 / Nb ₂ O ₅在所有Nb ₂ O ₅负载的双金属纳米催化剂中具有最高的催化活性，甲醛100％氧化的温度低至30°C。Ir _0.5 Pt _0.5 / Nb ₂ O ₅纳米催化剂的催化稳定性表现为四个反应循环后，在运行36 h后未发现催化剂失活。