The oxidation resistance of TiC/Ni composites is crucial for its application in high-temperature environment. in-situ are fabricated by reactive sintering method, and the influence TiC particle size on composite studied. increases from 1.54 μm to 2.40 as holding time prolongs 2 h 6 h, due dissolution-reprecipitation mechanism. kinetics with different oxidized at 800 °C 100 obeys parabolic kinet...

In this study, pencil graphite electrode was modified using conductive polypyrrole (Ppy) and grapheme (GF) nanocomposite for electrochemical determination of insulin. Electrochemical behavior of insulin on PGE was investigated using cyclic voltammetric (CV) and differential pulse voltammetric (DPV) and chronoaprometry (CA) methods. Several effective parameters including pH, concentration, and s...

Reduction of MoO3 in propene and oxidation of MoO2 in oxygen are investigated by in situ X-ray diffraction (XRD) and Xray absorption spectroscopy (XAS). Temperature-programmed and isothermal experiments (573–773 K) are performed to elucidate the structural evolution of phases present during the reactions and, in addition, to reveal the solid-state kinetics of the processes involved. During the ...