摘要
采用Ｘ射线衍射法研究了ＲｕＯ２－ＳｎＯ２混合金属氧化物电极的相结合和晶格参数。结果表明：ＲｕＯ２和ＳｎＯ２形成了具有金红石型结构的固溶体，但与ＲｕＯ２－ＴｉＯ２电极比较，晶粒较为细小，因此涂层较致密，采用循环伏安法研究了电极的活性表面（ｑ）结果显示，ＲｕＯ２－ＳｎＯ２电极具有较小的电极外表面和较大的是极内表面，上述结果有助于说明ＲｕＯ２－ＳｎＯ２电极稳定性提高的原因。
The phase structure and lattice constants of RuO_2-SnO_2 mixed metal oxides electrode was investigated by XRD.It was found that mixed oxides system formed a solid solution of RuO_2- SnO_2 with a rutile- type structure,but it had a smaller crystalline size and more compact than the RuO_2-TiO_2 system. Cyclic voltammetry provided information about electrochemically active surface area（q）.The results indicated that for RuO- SnO_2 （associated with the external surface）was less and （associated with the internal surtface） was bigger than that of RuO_2-TiO_2. The enhancement of stability for Ru-Sn can be attributed to more compact oxide layer and the formation of a stable Ru-Sn compound.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1996年第1期42-47,共6页
CIESC Journal
