A new LiFePO4-based phase composite LiFe0.95Ti0.05PO4/(C+LiFeP2O7)was synthesized by solid state method . The amorphous carbon and phosphate LiFeP2O7 consisted of the protective layer and coated the surface of the solid solution LiFe0.95Ti0.05PO4 The phosphate LiFeP2O7 was detected though XRD(X-ray diffraction)and CV(cyclic voltammetry).Morphology of the composite was observed by scanning electron microscope(SEM)and Transmission electron microscopy (TEM), it illustrated Ti4+ had been induced into the crystal lattice of LiFePO4 and formed the solid solution LiFe0.95Ti0.05PO4.The data of charge-discharge tests showed the composite had excellent electrochemical properties. Initial charge and discharge capacity of LiFe0.95Ti0.05PO4/(C+LiFeP2O7) had reached 157.9mAh/g and 155.2mAh/g at the rate of 0.1 C, respectively. At 1C, the discharge capacity of the composite remained 125mAh/g after 100 cycles.

A novel Pt-Sn bimetallic spherical microparticles electrode for methanol electooxidation was prepared by electrodeposition technique on nichrome substrate. The electrocatalytic performance of Pt-Sn electrode for methanol oxidation was investigated by cyclic voltammetry and chronoamperometry. The experimental results showed that deposited platinum-tin bimetallic microparticles enhanced the catalytic activity for methanol electrooxidation. Above all, anti-poisoning capability against CO of Pt-Sn bimetallic microparticles electrode was increased in comparision to pure platinum microparticles electrode. Moreover, the cost of preparing catalyst greatly decreased because of reduced dosage of contents of noble platinum on the electrode. This may be a promising electrocatalyst in the direct methanol fuel cells (DMFCs) and other liquid fuel cells field.