﻿<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://purl.org/rss/1.0/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" xmlns:sciepub="http://www.sciepub.com" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:taxo="http://purl.org/rss/1.0/modules/taxonomy/" xmlns:prism="http://prismstandard.org/namespaces/basic/1.2/">
  <channel rdf:about="http://www.sciepub.com/portal/Journals">
    <title>World Journal of Chemical Education</title>
    <link>http://www.sciepub.com/journal/WJCE</link>
    <description>All over the world there are very few research journals which focus on the development of education in chemistry, to name few: Journal of Chemical education (ACS), CEJ (Japan), The Australian Journal of Education in Chemistry (Australia), Chemistry Education in New Zealand etc. The sheer fact that the number of chemical education journals around the world can be counted on finger tips, has prompted us to propose this journal. Chemistry is a subject which is replete with concepts and this aspect of it makes the subject difficult, for the teachers and the taught. If a teacher develops an easier method or approach to difficult concepts he/she can translate the development into an erudite chemical education article. Thus, helping the chemistry teachers, students and the chemistry audience at large. This journal can accept novel interpretations of concepts in chemistry, experiments that can be included in the University Curriculum, enrichment of chemistry subject in standard chemistry books and if at all there are any flaws in standard chemistry books, this flaw can be rectified for the improvement of chemistry etc. Further any creative or novel article which ameliorates the classroom teaching can also be included in this journal.</description>
    <dc:publisher>Science and Education Publishing</dc:publisher>
		<dc:language>en</dc:language>
		<dc:rights>2013 Science and Education Publishing Co. Ltd All rights reserved.</dc:rights>
		<prism:publicationName>World Journal of Chemical Education</prism:publicationName>
		14
		1
		January 2026
		<prism:copyright>2013 Science and Education Publishing Co. Ltd All rights reserved.</prism:copyright>
    <items>
      <rdf:Seq>
        <rdf:li resource="http://pubs.sciepub.com/wjce/14/1/1"/>
      </rdf:Seq>
    </items>
  </channel>
  <item rdf:about="http://pubs.sciepub.com/wjce/14/1/1">
<title>
Kinetic and Diffusion Control with Rotating Electrodes (RDE and RRDE)
</title>
<link>http://pubs.sciepub.com/wjce/14/1/1</link>
<description>
<![CDATA[This article provides a structured, didactic introduction to hydrodynamic electrochemistry using rotating disk (RDE) and ring-disk (RRDE) electrodes. The Fe²⁺/Fe³⁺ redox couple is used as a model system to illustrate the experimental separation of kinetic- and diffusion-controlled current contributions. In diffusion- and kinetic-controlled reactions, the reaction velocity step is diffusion- or kinetic-controlled, respectively. Two additional systems supplement this one: the copper system and the organic hydroquinone/quinone (HQ/Q) system. At first, Cu²⁺ is reduced to Cu⁺, followed by subsequent reduction to Cu. This is an electrochemical three-component system. The RDE results of the HQ/Q system are compared by fitting the cyclic voltammogram. Then, the calculated diffusion coefficient and velocity constant are compared to the RDE measurement results. The quantitative evaluation using Levich analysis is illustrated step by step. We also introduce the RRDE technique as a mechanistic tool that enables direct correlation between charge transfer and product formation. The Koutecky–Levich formalism provides a more rigorous treatment of mixed kinetic and mass-transport control. In this approach, the experimentally measured reciprocal total current is expressed as the sum of the kinetic- and diffusion-limited currents according to the serial resistance of the electrode and solution. From a didactic perspective, Koutecky–Levich analysis is powerful because it enables students to visualize the transition from kinetic to diffusion control using experimental data. All calculations can be found in the Supporting Information. This manuscript is intended for advanced undergraduate and graduate education in electrochemistry.]]>
</description>
<dc:creator>
Achim  Habekost
</dc:creator>
<dc:date>2026-03-05</dc:date>
<dc:publisher>Science and Education Publishing</dc:publisher>
<prism:publicationDate>2026-03-05</prism:publicationDate>
<prism:number>1</prism:number>
<prism:volume>14</prism:volume>
<prism:startingPage>1</prism:startingPage>
<prism:endingPage>10</prism:endingPage>
<prism:doi>10.12691/wjce-14-1-1</prism:doi>
</item>
</rdf:RDF>