960化工网
Synthesis of an ordered nanoporous Fe2O3/Au film for application in ascorbic acid detection
Yingying Yin,Jianwei Zhao,Lirong Qin,Yu Yang,Lizhong He
RSC Advances Pub Date : 06/28/2016 00:00:00 , DOI:10.1039/C6RA12145D
Abstract

A simple method based on sputtering and electrochemical deposition onto an anodic aluminum oxide template is presented to fabricate an ordered nanoporous Fe2O3/Au film. Investigation results indicated that the prepared porous film consisted of an ordered hexagonal array of nanoholes with a pore diameter of 50 nm and a periodic distance of 120 nm. After dissolving the template, the independent Fe2O3/Au film can be transferred onto an ITO substrate to be used as an effective non-enzymatic sensor for detection of ascorbic acid. It exhibited excellent electrocatalytic performance with a high sensitivity of 1281.9 μA mM−1 cm−2, a wide linear range of 25 μM to 10 mM, and a low detection limit of 1 μM. The satisfactory results obtained indicated that the proposed sensor was promising for the development of a novel strategy for AA detection.

Graphical abstract: Synthesis of an ordered nanoporous Fe2O3/Au film for application in ascorbic acid detection
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