The Study Of Low-Pt And Pd Nanomaterials Synthesis And Electrocatalytic

The study of nanomaterials is a hot topic in recent years. Actually, the practical technical application of nanomaterials has brought huge advancement to the social development. Nanomaterials exhibit unique properties due to their unique structures,thus enabling them potentially for promising application prospects in different fields. Because of the high efficiency of energy conversion and low environmental pollution of fuel cell, it has drawn extensive attention from scientific researchers in the world in recent years. The use of catalyst is very important in the application of fuel cell.We carried out a series of systematic research work on design and electrocatalytic application of novel nanostructured materials. The main achievements are ourlined as following:(1)Because of the high efficiency of energy conversion and low environmental pollution of fuel cell, it has drawn extensive attention from scientific researchers in the world in recent years. The use of catalyst is very important in the application of fuel cell.(2)Carbon laden Pd octahedral nano-composites that are clean on the surface are prepared through simple and low-cost one-step synthesis. After compared this material with commercial Pd/C catalyst and Pd/C catalyst that contains surfactant PVP, the carbon laden Pd/C has great performance regarding to the catalytic activity and oxidization of formic acid.(3) A simple method that can be used to prepare unique Cu3 Pt alloy with nano frame structure and polyhedral features is developed. The features of this method are: simple, fast, high quality and good repetition. Besides, there is no complicated post-processing afterwards. More importantly, the composite alloy with nano frame structure has great electrocatalytic activity in terms of oxygen reduction.The author wish to develop and prepare a kind of fuel-cell catalyst that has high catalytic activity and stability and is clean on the surface through the study in this paper. Meanwhile, it is expected to find out high-efficient low-Pt and Pd catalyst to reduce the use of Pt in fuel cell catalyst.