کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1676036 | 1518089 | 2006 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Morphological and electrochemical studies of spherical boron doped diamond electrodes Morphological and electrochemical studies of spherical boron doped diamond electrodes](/preview/png/1676036.png)
Morphological and electrochemical characteristics of boron doped diamond electrode in new geometric shape are presented. The main purpose of this study is a comparison among voltammetric behavior of planar glassy carbon electrode (GCE), planar boron doped diamond electrode (PDDE) and spherical boron doped diamond electrode (SDDE), obtained from similar experimental parameters. SDDE was obtained by the growth of boron doped film on textured molybdenum tip. This electrode does not present microelectrode characteristics. However, its voltammetric peak current, determined at low scan rates, is largest associated to the smallest ΔEp values for ferrocyanide system when compared with PDDE or GCE. In addition, the capacitance is about 200 times smaller than that for GCE. These results show that the analytical performance of boron doped diamond electrodes can be implemented just by the change of sensor geometry, from plane to spherical shape.
Journal: Thin Solid Films - Volume 513, Issues 1–2, 14 August 2006, Pages 364–368