Selective catalytic reduction (SCR) of NO x with H 2 as ar eductant is the most promising denitration technology at low temperature. Achieving the conversion of NO x into N 2 at ambient temperature not only prolongs the service life of the catalyst, but also provides more freedomf or the arrangemento fd enitration units throughout the flue gas treatment equipment.H owever,t he development of highly efficient,s table, and environmentally benign supported platinum-based catalysts for H 2 -SCR at ambientt emperature is still am ajor challenge. Herein, a0 .5 wt %P t/ZrO 2 @C catalyst, which was composed of carbon-coated octahedral ZrO 2 with highly dispersed Pt particles, was prepared by using an ew stabilization strategy based on UiO-66-NH 2 (a zirconium metal-organic framework) as at emplate. The catalytic performance of this Pt/ZrO 2 @C in H 2 -SCR was tested and confirmed to achieven ear 100 %N O x conversion at 90 8C. Also, 70 %N 2 selectivity of the catalyst was achieved. The morphology, structure, and porous properties of the as-synthesized nanocomposites were characterizedb yu sing data obtained from field-emission SEM, TEM, XRD, Ramans pectroscopy,t hermogravimetric analysis,X -ray photoelectrons pectroscopy,a nd N 2 adsorption-desorption isotherms. The results show that residual carbon formed by pyrolysis treatment is coated on octahedral ZrO 2 ,a nd effectively prevents the agglomeration of platinum particles on the surface.