Selective Methane Oxybromination over Nanostructured Ceria Catalysts
نویسندگان
چکیده
منابع مشابه
Direct reduction of SO2 to elemental sulfur by methane over ceria-based catalysts
The catalytic reduction of SO2 to elemental sulfur by methane was studied over ceria-based catalysts. Both La-doped and undoped ceria were found to catalyze the SO2 reduction by CH4 in the temperature range of 550–750◦C at atmospheric pressure and with feed gases containing a molar ratio of CH4/SO2 = 0.5–3. At temperatures below ∼550◦C, the catalyst surface is capped by SO2. The reaction light-...
متن کاملSoot Combustion over Nanostructured Ceria with Different Morphologies
In this study, nano-structure ceria with three different morphologies (nanorod, nanoparticle and flake) have been prepared by hydrothermal and solvothermal methods. The ceria samples were deeply characterized by XRD, SEM, TEM, H2-TPR, XPS and in-situ DRIFTS, and tested for soot combustion in absence/presence NO atmospheres under loose and tight contact conditions. The prepared ceria samples exh...
متن کاملWater-gas Shift Reaction over Ceria-promoted Pt catalysts
Introduction The fuel processor in which hydrocarbon fuels can be converted into hydrogen has recently attracted much attention as a result of the advancement in the fuel cell technology. In a fuel processor, the water-gas shift (WGS) reaction plays a crucial role in the transformation of CO, a well-known poisonous gas to electrode of fuel cell, into hydrogen through reaction with steam. In WGS...
متن کاملCeria in Automotive Exhaust Catalysts
Oxygen storage capacities of CeOz, Ce02/A1203, and PMiCe0,/A120~, measured by a pulse injection method, are affected by pretreatment temperature, pulsing temperature, partial pressure of CO, presence of precious metals (PM), and the concentration of CeOz on alumina. They are lowered by higher pretreatment temperature but increase with the pulsing temperature in the range of application. At a pu...
متن کاملDiesel soot combustion ceria catalysts
This review article summarizes the contents of the keynote lecture with the same tittle presented at the 7 th edition of the International Conference on Environmental Catalysis hold in Lyon (France) in September 2012. Different aspects of the ceria-catalyzed Diesel soot combustion reactions have been critically discussed, such as the high catalytic activity of ceria for Diesel soot combustion i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ACS Catalysis
سال: 2017
ISSN: 2155-5435,2155-5435
DOI: 10.1021/acscatal.7b03074