کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
192487 | 459743 | 2008 | 6 صفحه PDF | دانلود رایگان |
Electrocatalytic effect of nanoporous interface between platinum (Pt) and electrolyte was investigated in terms of direct electrochemical oxidation of glucose. A Pt film with 3D nanopores was electroplated from the hexagonal (H1) lyotropic liquid crystal (LLC) phase of t-octylphenoxypolyethoxyethanol (Triton X-100), a nonionic surfactant with a phenyl group in a hydrophobic tail. This Pt film, which was electroplated from H1-LLC of Triton X-100 (ePt-H1-TX100), comprised closely stacked crystalline (face centered cubic) nanoparticles (diameter, 4–7 nm) with 3D nanopores (width, 1–2 nm) developed among the particles. The ePt-H1-TX100 showed high surface roughness and selective enhancement of a sluggish redox reaction, that is, kinetic-controlled reaction such as glucose oxidation. Nonenzymatic glucose sensing can be achieved by using discriminatively enhanced sensitivity to glucose over redox active interfering molecules.
Journal: Electrochimica Acta - Volume 53, Issue 21, 1 September 2008, Pages 6143–6148