ERIC Number: EJ1017083
Record Type: Journal
Publication Date: 2013-Jun
Abstractor: As Provided
Prussian Blue Coated Electrode as a Sensor for Electroinactive Cations in Aqueous Solutions
Byrd, Houston; Chapman, Blake E.; Talley, Christopher L.
Journal of Chemical Education, v90 n6 p775-777 Jun 2013
Prussian Blue (PB) is an excellent material as a sensor for electroinactive cations because of its electrochemical behavior and its zeolytic character. A simple 3-h laboratory designed for a quantitative analysis or an instrumental methods course is reported. This laboratory studies the transport of various cations into a PB-modified electrode upon reduction. Cyclic voltammograms are used to monitor the transport of ions such as K[superscript +] and Rb [superscript +] and observe the exclusion of Na [superscript +] and Mg [superscript 2+] ions. The ability for cations to enter the PB film is a function of the hydrated radius of the cations being analyzed.
Descriptors: Science Instruction, Chemistry, College Science, Undergraduate Study, Science Laboratories, Hands on Science, Molecular Structure, Scientific Concepts
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: email@example.com; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Authoring Institution: N/A
Grant or Contract Numbers: N/A