Research On The Synthesis Of Pt-Rh,Pt-Pd-Rh Alloy Porous Nanowires And Their Electrocatalytic Performance For Ethanol And Ethylene Glycol

Due to the special structure and composition of the noble metal nanowires,the electrocatalytic performance has been improved.Therefore,platinum-rhodium and platinumpalladium-rhodium nanowires were prepared by using tellurium nanowires as a sacrificial template replacement reaction.The porous nanowires are characterized by a variety of instrumentation methods after synthesis,like SEM,TEM,XRD,EDX,etc.To characterize the structure,morphology and composition of the synthesized alloy porous nanowire materials.The synthesis mechanism of one-dimensional porous materials of noble metal alloys has been studied,and the catalytic activities of ethanol and ethylene glycol by the one-dimensional porous nanowires with different structures and components have also been studied.The main contents include the following aspects:1.platinum-rhodium porous nanowires with controlled components were synthesized.The components were confirmed to be platinum and rhodium,after the test of TEM,XRD and EDX.Using electrochemical tests,some of the platinum-palladium alloy porous nanowires showed As a catalyst,it can show higher catalytic activity than commercial platinum carbon electrodes.2.Two different platinum-palladium-rhodium porous nanowires with controlled components were synthesized.The components were confirmed to be platinum,palladium and rhodium by means of TEM,XRD,EDX and other characterization methods.Part of the platinum-palladium was measured by electrochemical testing Rhodium alloy porous nanowires as catalysts can show higher catalytic activity than commercial platinum carbon electrodes.In this paper,an optimized fine platinum-rhodium porous nanowire was successfully prepared using the substitution reaction using tellurium nanowires as a sacrificial template,and on this basis,an optimized amount of ascorbic acid was used to prepare a fine platinumpalladium-rhodium porous nanowire..This method of preparing fine alloy porous nanowires is obtained through methodological innovation of other nanomaterial preparation methods.The synthesized porous nanowires have good catalytic properties for ethylene glycol and ethanol,and have better catalytic stability than commercial Pt / C electrodes.