Anodic Polarization Curves Revisited

Autor/inn/en	Liu, Yue; Drew, Michael G. B.; Liu, Ying; Liu, Lin
Titel	Anodic Polarization Curves Revisited
Quelle	In: Journal of Chemical Education, 90 (2013) 1, S.76-81 (6 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/ed200835n
Schlagwörter	Teaching Methods; Qualitative Research; Chemistry; Science Instruction; Scientific Research; Curriculum; Misconceptions; Problem Solving; Graduate Study; Decision Making + Suchen Sie Ihr Suchwort? Teaching method; Lehrmethode; Unterrichtsmethode; Qualitative Forschung; Chemie; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Curricula; Lehrplan; Rahmenplan; Missverständnis; Problemlösen; Aufbaustudium; Graduiertenstudium; Hauptstudium; Decision-making; Entscheidungsfindung
Abstract	An experiment published in this "Journal" has been revisited and it is found that the curve pattern of the anodic polarization curve for iron repeats itself successively when the potential scan is repeated. It is surprising that this observation has not been reported previously in the literature because it immediately brings into question the long accepted and well-known explanations involving a passive film. A qualitative and plausible explanation is provided from surprisingly simple principles for this new finding. Some important pedagogic conclusions have been derived from this work. It is noteworthy that the somewhat complicated phenomenon can be simply explained, thus providing two important lessons to students. First, even well-accepted scientific work studying simple processes may be incomplete and worthy of further study, and second, such processes may be explained simply at the undergraduate level. The contents of the paper also confirm that presenting curricular contents in a new and more correct manner is beneficial, interesting, and that research in curricular contents represents one of the important forms of educational research. (Contains 4 figures.) (As Provided).
Anmerkungen	Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10