Structural Effects of Microcrystalline Cellulose-Derived Carbon Supports on Catalytic Performance of the Pd(OH)2/C Catalysts for the Hydrogenolytic Debenzylation of Hexanitrohexaazaisowurtzitane Derivatives

In order to reduce the noble metal palladium dosage in preparation of CL-20 so as its production cost, several carbon supports were prepared successfully using hydrothermal carbonization method absence or presence urea microcrystalline cellulose (MC) source, and corresponding Pd(OH)2/C catalysts fabricated deposition–precipitation method, which showed high activity debenzylation reaction hexabenzylhexaazaisowurtzitane (HBIW) tetraacetyldibenzylhexaazaisowurtzitane (TADB). It was found that all a efficiency HBIW, indicating structure used had limited impact on catalyst performance this reaction. On contrary, activities TADB quite different. The results nitrogen sorption isotherm measurement (BET), scanning electron microscope (SEM), transmission microscopy (STEM), powder X-ray diffraction (XRD), element analysis temperature programmed desorption (TPD), well photoelectron spectra (XPS) characterizations catalysts, relatively Pd/HTC related Pd dispersion novel mesoporous structure, while further higher stability Pd/HTC-N1:1 same with dispersion, total oxidized species, surface pyridinic N contents eggshell distribution species support.