X-Ray photoelectron spectroscopic characterization of chemically modified electrodes used as chemical sensors and biosensors : a review
Articolo
Data di Pubblicazione:
2015
Citazione:
X-Ray photoelectron spectroscopic characterization of chemically modified electrodes used as chemical sensors and biosensors : a review / E. Desimoni, B. Brunetti. - In: CHEMOSENSORS. - ISSN 2227-9040. - 3:2(2015), pp. 70-117. [10.3390/chemosensors3020070]
Abstract:
The characterization of chemically modified sensors and biosensors is commonly
performed by cyclic voltammetry and electron microscopies, which allow verifying
electrode mechanisms and surface morphologies. Among other techniques, X-ray
photoelectron spectroscopy (XPS) plays a unique role in giving access to qualitative,
quantitative/semi-quantitative and speciation information concerning the sensor surface.
Nevertheless, XPS remains rather underused in this field. The aim of this paper is to review
selected articles which evidence the useful performances of XPS in characterizing the top
surface layers of chemically modified sensors and biosensors. A concise introduction to
X-ray Photoelectron Spectroscopy gives to the reader the essential background. The
application of XPS for characterizing sensors suitable for food and environmental analysis
is highlighted.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
chemically modified sensors; biosensors; X-ray photoelectron spectroscopy; surface analysis of electrodes; electrocatalysis
Elenco autori:
E. Desimoni, B. Brunetti
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