A series of Mgand/or Ce-doped Co3O4 (MgxCo1−xCo2O4 CexCo1−xCo2O4, MgxCeyCo1−x−yCo2O4) composite spinel metal-oxide catalyst was prepared by a coprecipitation method and evaluated for N2O direct decomposition. The activity measurement results suggest that Mg0.025Ce0.05Co0.925Co2O4 with a Mg/Ce mole ratio of 0.5 exhibited the highest N2O conversion activity, achieving 100% N2O conversion at T = 2...

A composite film of nickel sulfide/platinum/titanium foil (NiS/Pt/Ti) with low cost and high electrocatalytic activity was synthesized by the use of an in situ electropolymerization route and proposed as a counter electrode (CE) catalyst for flexible dye-sensitized solar cells (FDSSCs). The FDSSC with the NiS/Pt/Ti CE exhibited a comparable power conversion efficiency of 7.20% to the FDSSC with...

In this study, Mn-Ce/Al2O3/TiO2 catalyst prepared by impregnation method was used for synergistic O3 oxidation NO. The impregnating Al2O3/TiO2 at a Mn:Ce molar ratio of 4:1 showed the best catalytic activity. performance that when and volume O3:NO 1:4, removal rate NO could reach 63%, which increase 40% compared with oxidized alone. BET, XRD, TEM characterization results 4:1, specific surface a...

Low sintering flue gas temperatures and large temperature fluctuations require the development of low-temperature efficient SCR (selective catalytic reduction) catalysts suitable for process. It has been shown that modified Mn-Ce/TiO2 have good denitration capability potential commercial use. In this experiment, TiO2-loaded Mn Ce were prepared using impregnation method, a series characterizatio...

Abstract TiO 2 composite photocatalysts with doping amounts of Ce (0.5%Ce/TiO , 1%Ce/TiO 2%Ce/TiO 3%Ce/TiO and 5%Ce/TiO )were synthesized via a sol-gel method.The structure morphology the prepared composites were characterized by XRD, SEM, DRS, XPS. At same time, photocatalytic effect on rhodamine B (RhB) solution under simulated visible light irradiation was explored.The results indicated that...

The species formed by exposure of a Pd/ceria catalyst to SO2 under various conditions have been studied using temperature-programmed desorption (TPD) and FTIR. For adsorption of SO2 between 298 and 473 K, a molecular SO2 species adsorbs on the surface, possibly as a surface sulfite; and this species converts to a sulfate above 473 K. Exposure of Pd/ceria to SO2 at temperatures above 473 K in th...

The world’s rapidly dwindling crude oil supplies, their rising cost and the rapid growing of automobile pollutions from fossil fuels have led to an intensive search for alternative fuels. Experiments were conducted to evaluate the performance and control the exhaust emissions from two-stroke, single cylinder, spark ignition (SI) engine, with alcohol blended gasoline (80% gasoline and 20% ethano...