Electrochemistry News and Tips from ConsultRSR.com

Shortcourse: EIS for Fuel Cells

webmaster@consultrsr.com — Thu, 05 Nov 2009 08:41:08 -0500

An EIS shortcourse is being given in conjuction with the Fuel Cell Seminar this month. Read more ...

Music for Electrochemists

webmaster@consultrsr.com — Tue, 23 Jun 2009 19:50:47 -0500

A small collection of musical pieces, classical and popular, that have an electrochemical connection. Can you suggest others?

Intro to EIS without using equations!

webmaster@consultrsr.com — Tue, 23 Jun 2009 19:44:03 -0500

Bob Rodgers recently gave a talk at the monthly meeting of the Princeton Local Section of the ACS. Entitled "Introduction to Electrochemical Impedance Spectroscopy (EIS)," the 50 minute talk introduced the subject without using equations! You can view a pdf of his slides here.

Silver-silver sulfate reference electrode

webmaster@consultrsr.com — Wed, 10 Jun 2009 10:42:20 -0500

The silver-silver sulfate reference electrode is a green alternative (no mercury) that also contains no chloride. The potential of this electrode for several filling solutions has been added to our table. Be sure to read about how these potentials were calculated.

Cold Fusion - Twenty years later.

webmaster@consultrsr.com — Mon, 04 May 2009 14:41:04 -0500

Two recent journal articles and a "60 Minutes" television segment bring back memories of the 1989 announcement of Cold Fusion! Read Bob's commentary here.

Orazem EIS book IS available

webmaster@consultrsr.com — Mon, 15 Sep 2008 10:33:35 -0500

The Orazem-Tribollet EIS book is finally available and I have my copy. It looks like a good "learnable book" for the beginner and makes a good complement to the Macdonald book.

New resource added: Luggin Capillary/Probe

webmaster@consultrsr.com — Sat, 28 Jun 2008 13:11:32 -0500

A new Resource page has been added that discusses the Luggin Capillary/Probe. It includes some hints and literature references that discuss the practical problem of high resistance salt bridges.

Electrochemistry on Mars: Phoenix Lander

webmaster@consultrsr.com — Thu, 29 May 2008 13:17:24 -0500

The Phoenix Lander arrived safely on Mars on May 25, 2008. The on-board lab will do electrochemistry!

A reference electrode frit for use in basic solutions

Bob.Rodgers@ConsultRSR.com — Wed, 14 May 2008 07:46:08 -0500

In a twenty year old publication Yee and Chang suggested the use of molecular sieve pellets as a liquid junction for reference electrodes. It has the advantage that it does not dissolve in base the way Vycor(R) does.

"Standard" EIS data file formats

webmaster@consultrsr.com — Thu, 01 May 2008 13:12:14 -0500

ISO and ASTM should both adopt XML formatting for EIS data files!

Complex Number Refresher

webmaster@consultrsr.com — Thu, 10 Apr 2008 15:39:08 -0500

If you are using EIS, sooner or later you are going to have to deal with complex numbers and complex arithmetic. This refresher gives some of the simple relationships that you have probably long forgotten, such as how to divide one complex number by another.

Textbooks on Digital Simulation

webmaster@consultrsr.com — Wed, 13 Dec 2006 22:23:17 -0500

Several textbooks on digital simulation of electrochemistry are now available in the Bookstore.

Meeting Calendar updated. New calculator added: C from (RQ) model

webmaster@consultrsr.com — Sat, 21 Oct 2006 08:50:48 -0500

The meeting calendar has been updated with 2007 entries. A new calculator has been added that calculates the "true" capcitance from a fit of a CPE and a resistor in parallel.

Online calculator: Estimating the True C from a Constant Phase Element

webmaster@consultrsr.com — Tue, 31 Jan 2006 13:02:39 -0500

A new online calculator has been added that allows estimating the "true" capacitance from a CPE. The equations of Hsu & Mansfeld are used to estimate C from omega(max) and the CPE parameters.

Inductance Calculator Updated

webmaster@consultrsr.com — Sun, 07 Aug 2005 05:54:27 -0500

Minor revisions have been made to the equations underlying the "Inductance Calculator." New references also have been added.

The calculator estimates the inductance of an isolated piece of straight, round wire. It can be used to estimate the inductance of our working electrode.