Simple and low-cost ultramicroelectrode fabrication and characterization method for undergraduate students

Sur, Ujjal Kumar; Dhason, A.; Lakshminarayanan, V.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5273

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DC Field	Value	Language
dc.contributor.author	Sur, Ujjal Kumar	-
dc.contributor.author	Dhason, A.	-
dc.contributor.author	Lakshminarayanan, V.	-
dc.date.accessioned	2012-08-29T11:44:56Z	-
dc.date.available	2012-08-29T11:44:56Z	-
dc.date.issued	2012-01	-
dc.identifier.citation	Journal of Chemical Education, 2012, Vol.89, p168-172	en
dc.identifier.issn	0021-9584	-
dc.identifier.uri	http://hdl.handle.net/2289/5273	-
dc.description	Restricted Access	en
dc.description.abstract	A laboratory experiment is described in which students fabricate disk-shaped gold and platinum microelectrodes with diameters of 10–50 μm by sealing sodalime glass with metal microwires. The electrodes are characterized by performing cyclic voltammetry in aqueous and acetonitrile solution. Commercial microelectrodes are expensive (cost depends on the diameter of electrode) and may deter introduction of voltammetric experiments into laboratory classes at the undergraduate level. The students also fabricate a simple operational amplifier (op amp)-based potentiostat along with a low-current measuring device. This low-cost fabrication helps the students understand the details of instrumentation of a potentiostat with special knowledge in analog electronics. This experiment can be included in the electrochemistry laboratory course for undergraduate students. This experiment can also be incorporated into various undergraduate laboratory courses such as analytical chemistry, general chemistry, biochemistry, physical chemistry, and instrumentational methods of analysis.	en
dc.language.iso	en	en
dc.publisher	American Chemical Society	en
dc.relation.uri	http://adsabs.harvard.edu/abs/2012JChEd..89..168S	en
dc.relation.uri	http://dx.doi.org/10.1021/ed101065e	en
dc.rights	2012 American Chemical Society	en
dc.subject	Second-Year Undergraduate	en
dc.subject	Upper-Division Undergraduate	en
dc.subject	Analytical Chemistry	en
dc.subject	Laboratory Instruction	en
dc.subject	Physical Chemistry	en
dc.subject	Hands-On Learning/Manipulatives	en
dc.subject	Oxidation/Reduction	en
dc.title	Simple and low-cost ultramicroelectrode fabrication and characterization method for undergraduate students	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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