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研究了Sb在Pt(1 0 0 ) ,Pt(1 1 0 ) ,Pt(1 1 1 )和Pt(32 0 )单晶面上不可逆吸附的电化学特性 .发现当扫描电位的上限Eu≤ 0 .45V时 ,Sbad可以稳定地吸附在Pt(1 0 0 ) ,Pt(1 1 0 )和Pt(1 1 1 )表面 ,而Sbad在Pt(32 0 )表面稳定的电位较低 ,为Eu≤ 0 .40V .从饱和吸附Sb的铂单晶电极出发 ,通过改变电位扫描上限Eu 和电位扫描圈数可以获得不同Sb覆盖度 (θSb)的电极 .根据Sb和H在铂单晶电极表面共吸附的定量数据 ,对Sb在不同铂单晶面上饱和吸附的模型进行了初步探讨 .
The electrochemical characteristics of Sb irreversibly adsorbed on Pt (1 0 0), Pt (1 1 0), Pt (1 1 1) and Pt (32 0) single crystal surfaces were investigated. It was found that when the upper limit of the scan potential Eu≤0 Sbad can be stably adsorbed on Pt (1 0 0), Pt (1 1 0) and Pt (1 1 1) surfaces at 45 V, whereas Sbad has a relatively low potential at the Pt 0.40 V. Starting from Pt single crystal electrode with saturated Sb adsorption, electrodes with different Sb coverage (θSb) can be obtained by changing the upper potential scanning upper Eu and the potential scanning laps.According to the total adsorption of Sb and H on the surface of platinum single crystal electrode The quantitative adsorption data of Sb on different platinum single crystal surfaces were discussed.