The preparation of lead oxide / carbon nanotubes complex and its catalytic performance

Abstract The introduction of carbon nanotubes (CNTs) in the preparation nano-lead oxide (PbO) can effectively solve problem easy agglomeration oxide. This study used concentrated nitric acid and sulfuric mixed (volume ratio 1:3) to oxidize at 90 °C temperature for 0.5 h. Using oxidized CNTs as carriers, Pb(OAc) 2 · 3H O precursor, ammonia a precipitator, PbO/CNTs complexes were prepared by chemical precipitation. Lead content complex, determined Complexometry, was 59.80 %(wt%), XRD XPS characterizations revealed that catalyst components complex mainly nano-sized PbO, And small amount lead, SEM EDX characterization PbO with particle size between 20 m-200 nm had been successfully Loaded onto surface, TEM show CNTS retained original lattice, spot lead found inside tubes. thermal decomposition effect on AP, RDX, HMX evaluated DSC, catalytic AP RDX be obvious.