%0 Journal Article %A Wu, Chuntian %A Wang, Xiaodong %A Zhou, Xiunan %A Yang, Tianzhuo %A Zhang, Tao %D 2015 %I Begell House %K cordierite honeycomb monolith, nontoxic monopropellant, catalytic decomposition, high bed-loading %N 5 %P 421-436 %R 10.1615/IntJEnergeticMaterialsChemProp.2015011176 %T SUPPORTED MnOx /SrO−Al2O3 HIGH-CELL DENSITY HONEYCOMB CERAMIC MONOLITH CATALYST FOR HIGH-CONCENTRATION HYDROGEN PEROXIDE DECOMPOSITION %U https://www.dl.begellhouse.com/journals/17bbb47e377ce023,488f8cbb66341308,3a940ce34374388f.html %V 14 %X High-concentration hydrogen peroxide is a potential substitute for a toxic hydrazine monopropellant. There is a pressing need for improved H2O2 decomposition catalysts to both increase bed loading and improve the resistance to a high temperature. In this paper, we describe the effects of Sr addition on the catalytic properties of MnOx/SrO−Al2O3 catalysts for high-concentration hydrogen peroxide decomposition. A structure analysis by temperature-programmed reduction and X-ray diffraction revealed that highly dispersed SrO formed on Al2O3 enhanced the dispersion and reduction capability of Mn species and facilitated the formation of more active Mn4+ species due to restraining the interaction between Mn and Al2O3 and activation of oxygen. Mn4+ species provided the main active site. The addition of Sr increased the catalytic activity and work stability of the MnOx/SrO−Al2O3 monolith catalyst. %8 2015-10-08