Study on hydrogen evolution performance of the carbon supported PtRu alloy film electrodes

1IntroductionIt is the key problemthat howto transformefficiently electric energyinto hydrogen energy for propelFig.l The flowchart of indirect electrolysis of H2Sthe clean energy use extensively1].At present,the advanced method could avoid passivation of anode bysulfur2],andit only consumed1/2-1/3electricitythanthat by water electrolysis3],its basic flowsheet wasshownin Fig.1.Every kinds of hydride such as H2S and so on1-3],could be used to produce hydrogen by the way of e-lectrolysis …

Study on hydrogen evolution performance of the carbon supported PtRu alloy film electrodes

The carbon supported PtRu alloy film electrodes having Pt about 0.10 mg/cm~2 or even less were prepared by ion beam sputtering method (IBSM). It was valued on the hydrogen analyse performance, the temperature influence factor and the stability by electroanalysis hydrogen analyse method. It was found that the carbon supported PtRu alloy film electrodes had higher hydrogen evolution performance and stability, such as the hydrogen evolution exchange current density (j~0) was increase as the temperature (T) rised, and it overrun 150 mA/cm~2 as the trough voltage in about 0.68V, and it only had about 2.8% decline in 500 h electrolytic process. The results demonstrated that the carbon supported PtRu alloy film electrodes kept highly catalytic activity and stability, and it were successfully used in pilot plant for producing H_2 on electrolysis of H_2S.