To investigate the influence of support material type on the performance of doped carbon catalysts, electrochemical catalysts of doped carbon were prepared by pyrolyzing polyaniline (PANI), using melamine, XC-72R and TiO2 as support material, respectively. For the oxygen reduction reaction (ORR), support material had a significant effect on the performance of catalysts due to their […]

Lithium niobate (LiNbO3) nano and micro structures are deposited using spin coating method on quartz substrate. The precursor solutions are prepared under different time of stirring (8, 24 and 48h). The precursors are deposited by spin coating at 3000 rpm for 30sec and 0.5 mol/L. The samples are analysed by X-ray diffraction. The results show […]

The effect of various promoters (Ca, Ce, Mg, Zr) on the performance of 3%Ni/g-Al2O3 catalysts in dry reforming of methane was investigated in a quartz tubular reactor under the following conditions: 1:1 CO2/CH4 ratio, flow rate CO2/CH4/Ar = 15/15/3 ml/min, temperature 700oC and at atmospheric pressure. The support,g-Al2O3 was prepared by hydrothermal crystallization of boehmite. […]

Commercially pure titanium (CP-Ti) TA2 samples were subjected to thermal oxidation (TO) treatment at a temperature range of 500℃~850℃ for 210min. The oxidizing kinetics was analyzed, and the TO treated specimens were characterized by scanning electron microscopy (SEM), X-ray diffractometer (XRD), microhardness tester and immersion test. The results showed that the TO kinetics curves at […]