Maxwell-Wagner Relaxation in Ca-, Sm- and Nd-doped Ceria

Large Dielectric Constant and Maxwell-Wagner Relaxation in Bi2/3Cu3Ti4O12

A Comparison of Ceria and Sm-Doped Ceria for Hydrocarbon Oxidation Reactions

The oxidation of methane, ethane, propane, and n-butane has been studied over CeO2 and Ce0.8Sm0.2Ox (SDC) catalysts. The rates for methane and ethane were found to be indistinguishable over the two catalysts, while the rates for propane and n-butane were much higher on ceria compared to SDC. The difference between n-butane oxidation over ceria and SDC is shown to result from a low-temperature r...

Synthesis of Nano-Ca doped Ceria by combustion method and investigating of effective factors on process

A Synthesis of doped ceria by combustion method is performed. Two types of fuel such asurea and glycine is used to investigate the effect of fuel reactivity and reaction rate on themorphology of the resulted powders. Thermo gravimetric analysis is carried out by (TG/DTA,Rigaku Thermalplus TG 8120) to study the exo–endo temperature of as-received powder. Thecrystalline phases are identified by X...

Dielectric Properties and Maxwell-Wagner Relaxation of Xompounds ACu3Ti4O12 (A=Ca,Bi2/3,Y2/3,La2/3)

Theoretical Verification Necessity of Leakage Currents Using Sm Doped Ceria Electrolytes in SOFCs

Numerous approaches have been made to solve the basic transport equation that describes a solid oxide fuel cell (SOFC) with mixed conduction. Classically, the open circuit voltage (OCV) is calculated with Wagner‘s equation, which is right within the limits of linear transport theory. In order to generalize Wagner’s equation, many models have been proposed to describe the current-voltage relatio...