Carbon nanotube (CNT) forest grown on diamond-like carbon (DLC) thin films significantly improves electrochemical sensitivity and selectivity towards dopamine
作者： Sami Sainio , Tommi Palomäki , Sneha Rhode , Minna Kauppila , Olli Pitkänen
DOI: 10.1016/J.SNB.2015.01.059
关键词: Diamond-like carbon 、 Nanotechnology 、 Carbon 、 Ascorbic acid 、 Scanning electron microscope 、 Hybrid material 、 Carbon nanotube 、 X-ray photoelectron spectroscopy 、 Thin film 、 Materials science
摘要: Abstract In this study we demonstrate a scalable and CMOS compatible synthesis of robust diamond-like carbon (DLC)–multi-walled nanotube (MWCNT) hybrid electrodes. MWCNTs were grown directly on top DLC thin film electrodes by utilizing Al/Co/Fe tri-layer catalyst structure at 550 °C. The the material was characterized in detail scanning electron microscopy (SEM), transmission (TEM), Raman investigations X-ray photoelectron spectroscopy (XPS). After very simple activation step with nitric acid shown to exhibit wide stable water window, almost reversible transfer kinetics high sensitivity as well selectivity towards dopamine (DA) presence ascorbic (AA). Thus, it can be argued that electrochemical properties MWCNT combined unique way new nanomaterial. possible reasons behind observed behavior are discussed considerable detail. Despite fact present results valid only for particular synthesized under conditions described paper, anticipate concept DLC–MWCNT hybrids, several other novel based electrode materials may introduced variety applications.
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