期刊
NANOTECHNOLOGY
卷 26, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/26/1/015503
关键词
CuO porous film; glucose; enzymatic sensing; non-enzymatic sensing; amperometry
资金
- China Scholarship Council [201206230077]
- MEXT, Japan
- JSPS Core-to-Core program (Advanced Research Networks type A)
- University of Tokyo
Nanoporous CuO layer on Cu foil with a thick Cu2O interlayer is synthesized via post annealing of previously fabricated Cu(OH)(2) nanowires at 500 degrees C under an oxygen flow. The formation of the thick sandwiched Cu2O layer is realized through the outward diffusion of Cu ions and subsequent oxidation. An O-2 pressure above the dissociation pressure of CuO is used to form a CuO layer at the outer surface of the structure, thus realizing a low cost structure having a porous and high isoelectric point layer. The Cu/Cu2O/CuO structure is used as an efficient electrode for glucose sensing. Sensitivities of 20.7 mA mM(-1) cm(-2) at 0.8 V versus Ag/AgCl and 1066 mu AmM-1 cm(-2) at 0.6 V versus Ag/AgCl are achieved in an enzymatic and non-enzymatic glucose sensing schemes, respectively. The improved electrochemical sensing ability might be attributed to the efficient electrocatalytic reaction on the high crystal quality CuO layer and the porous structure.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据