Badger Electrochemists

Badger Electrochemists : Badger Electrochemists Giddings Award Symposium Leslie J. Lyons Department of Chemistry Grinnell College Grinnell, Iowa 50112

CongratulationsAlanah! : Congratulations Alanah!

Outline : Outline Badger Electrochemists (1952 - present) Analytical Chemistry at Grinnell Teaching: Introductory and Advanced Research: Silicon Electrolytes for Lithium Battery Applications Acknowledgements

Badger Electrochemistry Home : Badger Electrochemistry Home This photograph, from 1978, shows the Daniels building from the northeast, on the corner of University Avenue and Mills Street. Photo courtesy of UW-Madison University Communications.

Slide5 : Irving Shain Photos courtesy of UW-Madison University Communications. Shain Chemistry Research Tower

The Shain Tower Dedication : The Shain Tower Dedication

Slide7 : Primitive cyclic voltammetry in 1963. Photos courtesy of Irving Shain and UW Dept. of Chemistry Students in the laboratory in 1962 (L to R): R. Nicholson, B. Schwarz, B. K. Hovsepiar, and D. Polcyn

NanoBucky : NanoBucky http://hamers.chem.wisc.edu/research/nanofibers/index2.htm Sarah Baker Grinnell ‘01 UW ‘06

Teaching Analytical Chemistry at Grinnell : Teaching Analytical Chemistry at Grinnell CHM 130: Inorganic and Analytical Chemistry Texts: Daniel Harris, Exploring Chemical Analysis, 3rd Ed. and Luther Erickson, Water Module Guidebook CHM 358: Instrumental Analysis Text: Skoog, Holler, Nieman, Principles of Instrumental Analysis, 5th Ed.

Instrumental Analysis: Electrochemistry Labs : Instrumental Analysis: Electrochemistry Labs Iodide Ion Selective Electrode Polarography of Pb Anodic Stripping Voltammetry Cyclic Voltammetry Rotating Ring Disk Voltammetry Impedance Spectroscopy Spectroelectrochemistry

CHM 130 Text Topics : CHM 130 Text Topics Review of Monoprotic Acid/Base Equilibria Titrations and Buffers Polyprotic Acids Activity Spectrophotometry and Atomic Spectroscopy Transition Metal and Coordination Chemistry Chromatography and Mass Spectrometry Nuclear Chemistry

Water Module Overview : Water Module Overview 5 weeks of lab; 4 weeks of class Question driven discussion of solubility equilibria, carbonate equilibria, atomic spectroscopy, and electrochemistry Lab analyses of drinking water from around the country with Grinnell, Chicago, Des Moines, and bottled water providing benchmarks Lab concludes with student poster presentations

Water Module: Class Sessions (Week 1) : Water Module: Class Sessions (Week 1) Session 1. Formulating the Questions and Limiting the Exploration: Focus on Ionic Composition Session 2. Dissolved Ionic Solids: Which ionic salts are present in typical water samples and how did they get there? Session 3. Major species vs. minor species: Why are so many different concentration units employed to describe concentration levels of the several species present in water samples?

Water Module: Class Sessions (Week 2) : Water Module: Class Sessions (Week 2) Session 4. Carbon dioxide and dissolved carbonates: Why do virtually all fresh water samples contain bicarbonate as a principal species? Session 5. Hard water: What is meant by hard water and why does degree of hardness matter? Session 6. Sodium and yellow flames: How can we determine how much sodium is in the water?

Water Module: Class Sessions (Week 3) : Water Module: Class Sessions (Week 3) Session 7. Galvanic Cells and Ion Concentrations: How can galvanic cells be used to determine ion concentrations? Session 8. Potentiometric Titrations: How do ion concentrations change in the course of a titration? Session 9. Ion-Selective Electrodes and ppm Concentrations: How can we determine ion concentrations at the 1 ppm level?

Water Module: Class Sessions (Week 4) : Water Module: Class Sessions (Week 4) Session 10. Conservation of Mass and Charge: Does it all add up? (including poster preparation) Session 11. What does it all mean? What does the complete chemical analysis reveal about the source and treatment of our water samples? Session 12. Exam

Water Module: Laboratory : Water Module: Laboratory L1. pH and Alkalinity by Potentiometric Titration with HCl L2. Water Hardness (Total and Ca) by EDTA Titration L3. Chloride by Potentiometric Titration with Silver Nitrate L4. Sodium Determination by Atomic Emission Measurements L5. Nitrate by Potentiometry with Ion Selective Electrode L6. Fluoride by Potentiometry with Ion Selective Electrode L7. Total Dissolved Solids by Electrical Conductivity

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Slide19 :

Water Module Student Data : Water Module Student Data Gillis, Goodwin-Kucinsky, Patnaik, Peters, and Yohannes

Silicon Electrolytes for Lithium Battery Applications : Silicon Electrolytes for Lithium Battery Applications

In the News : In the News R&D 100 Award, September, 2005 Scientists craft lithium batteries by John Potratz Badger Herald Wednesday, October 5, 2005 New battery stimulates damaged nerves By ASTARA MARCH Science Daily, Oct. 3, 2005

Linear Polysiloxane Ionic Conductivities : Linear Polysiloxane Ionic Conductivities Macromolecules, 2001, 34, 931-934. LiTFSI

Cross-linked Polysiloxane Gel Electrolytes : Cross-linked Polysiloxane Gel Electrolytes Macromolecules, 2003, 36, 9176. 

Liquid Siloxane Electrolytes : Liquid Siloxane Electrolytes Chem. Mater., 2006, 18, 1289.

Atlanta ACS Meeting : Atlanta ACS Meeting

VT Conductivities of 1NMx/LiTFSI : VT Conductivities of 1NMx/LiTFSI

NMR Studies of Electrolytes : NMR Studies of Electrolytes 1NM3

Acknowledgements: Grinnell College : Acknowledgements: Grinnell College Marie Mapes Douglas Schumacher Felipe Bautista Jay Jin David Clipson Kate Morcom Yanika Schneider Jacob Barrera Lori Cooke Scott Harring Megan Straughan James Taggart T. Andrew Mobley NSF-REU, NSF-MRI (2), HHMI, Grinnell College 3M Luther E. Erickson, “The Water Module Guidebook”

Acknowledgements: Organosilicon Research Center : Acknowledgements: Organosilicon Research Center Robert West David Moline Richard Hooper Qinzheng Wang David Sherlock Ryan West Zhengcheng Zhang Nicholas A. A. Rossi Lingzhi Zhang UW University-Industry Relations Grant NIST-ATP