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2007
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In the Laboratory
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Study of Metal–NH3 Interfaces (Metal = Cu, Ni, Ag) Using Potentiostatic Curves
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Nelson Nunes, Angela Martins, and Ruben Elvas Leitão
Department of Chemical Engineering, Lisbon Engineering Institute (ISEL), Polytechnic Institute of Lisbon, 1950-062 Lisboa, Portugal
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June 2007
Vol. 84 No. 6
p. 1017
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| Abstract |
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Students determine kinetic and thermodynamic parameters of different metal–solution interfaces. These parameters are obtained from potentiostatic curves using the Tafel and the Arrhenius equations. The work involves the variation of type of metal, solution concentration, and temperature. The results allow the discussion of the polarizability, transfer coefficient, and activation energy of the processes, as well as the differences between them.
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| Supplement |
Instructions for the students and notes for the instructor are available.
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| More Information |
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Citation |
Nunes, Nelson; Martins, Angela; Leitão, Ruben Elvas. J. Chem. Educ. 2007, 84, 1017.
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Keywords |
Aqueous Solution Chemistry; Electrochemistry; Hands-On Learning / Manipulatives; Kinetics; Laboratory Instruction; Metals; Physical Chemistry; Second-Year Undergraduate; Upper-Division Undergraduate
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History |
Created:
Last Updated: |
4/24/2007
5/3/2007
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 Caution! | | Experiments, laboratory exercises, lecture demonstrations, and other descriptions of the use of chemicals, apparatus, instruments, computers, and computer interfaces are presented in the Journal of Chemical Education as illustrative of new or improved ideas or concepts in chemistry instruction and are directed at qualified teachers. Although every effort is made to assure and encourage safe practices and safe use of chemicals, the Journal of Chemical Education cannot assume responsibility for uses made of its published materials. Many chemicals are hazardous. Precautions for the safe use of hazardous chemicals and directions for their proper disposal are described in the Material Safety Data Sheets and on the labels. We strongly urge all those planning to use materials from our pages to make choices and to develop procedures for laboratory and classroom safety in accordance with local needs and situations. |
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1017
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