Understanding voltammetry:
Gespeichert in:
| Beteiligte Personen: | , |
|---|---|
| Format: | Buch |
| Sprache: | Englisch |
| Veröffentlicht: |
New Jersey ; London ; Singapore ; Beijing ; Shanghai ; Hong Kong ; Taipei ; Chennai ; Tokyo
World Scientific
[2018]
|
| Ausgabe: | Third edition |
| Schlagwörter: | |
| Links: | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=030483066&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| Umfang: | xvi, 439 Seiten Illustrationen, Diagramme (teilweise farbig) |
| ISBN: | 9781786345264 9781786345295 |
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| 245 | 1 | 0 | |a Understanding voltammetry |c Richard G. Compton, Oxford University, UK; Craig E. Banks, Manchester Metropolitan University, UK |
| 250 | |a Third edition | ||
| 264 | 1 | |a New Jersey ; London ; Singapore ; Beijing ; Shanghai ; Hong Kong ; Taipei ; Chennai ; Tokyo |b World Scientific |c [2018] | |
| 264 | 4 | |c © 2018 | |
| 300 | |a xvi, 439 Seiten |b Illustrationen, Diagramme (teilweise farbig) | ||
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Datensatz im Suchindex
| _version_ | 1819289903892004864 |
|---|---|
| adam_text | Preface
Contents
Abo ut the Authors
1 Equilibrium Electrochemistry and the Nernst Equation
Chemical Equilibrium
Electrochemical Equilibrium: Introduction
Electrochemical Equilibrium: Electron Transfer at the
Solution—Electrode Interface
Electrochemical Equilibrium: The Nernst Equation
Walther Hermann Nernst
Reference Electrodes and the Measurement of Electrode
Potentials
The Hydrogen Electrode as a Reference Electrode
Standard Electrode Potentials and Formal Potentials
Formal Potentials and Experimental Voltammetry
1 10 Electrode Processes: Kinetics vs Thermodynamics
References
2 Electrode Kinetics
Currents and Reaction Fluxes
Studying Electrode Kinetics Requires Three Electrodes
Butler—Volmer Kinetics
Standard Electrochemical Rate Constants and Formal
Potentials
The Need for Supporting Electrolyte
The Tafel Law
Julius Tafel
Multistep Electron Transfer Processes
xi
vii
xii Understanding Vollammelry
9 Tafel Analysis and the Hydrogen Evolution Reaction ‚
B Stanley Pons
Cold Fusion —— The Musrcal!
Why Are Some Standard Electrochemical Rate Constants Large
but Others Slow? The Marcus Theory of Electron Transfer: An
Introduction
Marcus Theory: Taking it Further Inner and Outer Sphere
Electron Transfer
Marcus Theory: Taking it Further Adiabatic and Non-Adiabatic
Reactions
Marcus Theory: Taking it Further Calculating the Gibbs Energy
of Activation
Relationship between Marcus Theory and Butler—Volmer
Kinetics
Marcus Theory and Experiment Success!
Extending Marcus—Hush Theory: The Fermi—Dirac
Distribution of Electrons Symmetric vs Asymmetric
Marcus-Hush Theory
References
Diffusion
3 1 Fick’s lst Lawof Diffusion
3 2 Picks 2nd LaWOfDifoSion iil
33 The Molecular Basis of Fick’s Laws nnlilIIlnllIli
:4 How Did FickDiscover His Laws? IUIlIlnlUlI
The Cottrell Equation: Solving Fick’s 2nd Law ‚ ‚ _ _ ‚ _ „ _
The Cottrell P
Coefl‘icients foPlfrfl-_The case of Unequal Diffusion
The Nernst Diffusion - ‘ ‘ ----
Layer
Mass Transfer vs E1 l ‘ ‘ ---
- ectrode Ki -
Current-Voltage Waveshapes nencs SteadY—State
3-9 MassTrans o
t
References l Pr Corrected Tafel Relationships
4 2 Cyclic Voltamm
4 3 Cyclic Voltamm
etl’Y: Solving theTransport Equations IIlI
et :
What Dictates (Rey Beve’mble and Irreversible Kinetics -
ersrble and ‘Irreversible’ Behaviour?
Contents xiii
Reversible and Irreversible Behaviour: The Effect of Voltage
Scan Rate 126
4 6 Reversible vs Irreversible Voltammetry: A Summary 132
4 7 The Measurement of Cyclic Voltammograms: Five Practical
Considerations 133
4 8 The Effect of Unequal Diffusion Coefficients, DA 7E D3 137
4 9 Multiple Electron Transfer: Reversible Electrode Kinetics 140
4 10 Multiple Electron Transfer: Irreversible Electrode Kinetics 149
4 11 The Influence of pH on Cyclic Voltammetry 154
4 12 The Scheme of Squares 158
4 13 Simultaneous Two-Electron Transfer in Electrode Kinetics? 159
References 162
5 Voltammetry at Microelectrodes 163
5 1 The Cottrell Equation for a Spherical or Hemispherical
Electrode 163
Potential Step Transients at Microdisc Electrodes 168
5 3 Microelectrodes Have Large Current Densities and Fast Response
Times 169
5 4 Applications of Potential Step Chronoamperometry Using
Microdisc Electrodes 171
5 5 Double Potential Step Microdisc Chronoamperometry Exploring
the Diffusion Coefficient of Electrogenerated Species 174
5 6 Cyclic and Linear Sweep Voltammetry Using Microdisc
Electrodes 182
5 7 Steady-State Voltammetry at the Microdisc Electrode 192
5 8 Microelectrodes vs Macroelectrodes 193
5 9 Ultrafast Cyclic Voltammetry: Megavolts per Second
Scan Rates 197
5 10 Ultrasmall Electrodes: Working at the Nanoscale 198
References 201
6 Voltammetry at Heterogeneous Surfaces 203
6 1 Partially Blocked Electrodes 203
6 2 Microelectrode Arrays 219
6 3 Voltammetry at Highly Ordered Pyrolytic Graphite
Electrodes 225
6 4 Electrochemically Heterogeneous Electrodes 229
6 5 Electrodes Covered with Porous Films 232
xiv Understanding Voltammetry
ammetric Particle Sizing nIIIiI ‘ 239
‘Slzziiining Electrochemical MlcroscoPY ~ IiUI 243
References - - -
o- 5
Voltammetry: Coupled Homogeneous Kinetics and Adsol Pth n 2:5
7 CYdch—I mo eneous Coupled Reactions: Notation and Examples
Mbdiffing Fick’s Second Law to Allow for Chemical IlI 247
Reaction I 248
7 3 Cyclic Voltammetry and the EC Reaction 252
7 4 How Do the Parameters K1 and A Emerge? 255
7 5 Cyclic Voltammetry and the EC; Reaction 258
7 6 Examples of EC and EC; Processes 266
7 7 ECE Processes 274
7 8 ECE vs DISP 777
7 9 The CE Mechanism -
7 10 The EC’ (Catalytic) Mechanism 278
7 11 Adsorption 281
7 12 Voltammetric Studies of Droplets and Solid Particles 292
References 297
8 Hydrodynamic Electrodes 299
8 1 Convection 299
8 2 Modifying Fick’s Laws to Allow for Convection 301
3-3 The Rotating Disc Electrode: An Introduction 302
8 4 The Rotating Disc Electrode — Theo 303
8 5 Osborne Reynolds (1842—1912) 307
8‘6 The Rotating Disc Electrode — Further Theory _ „ „ ‚ ‚ 307
8 7 Chronoamperometry at the Rotating Disc Electrode: An
Illustration of the Value of Simulation 314
2:: 2221222235153: ~-- --
8 10 The Channel E1 e “Ho-dual“ _ ‘ ‘ 320
8 11 Channel Flow (36:11::de The Lewd] Equation Derived 323
d Coupled Homo eneous Kinetics 324
8 12 ChronoamPerometry at the Ch g
8 13 The Channel Electrode is not ‘Uan-lgel Ehen-Ode ‘ 330
:14 Cärannel Microelectrodes m ormly Accesmble) ’ ‘
-5C ann ‘ ‘ ‘ ‘ -----
Electrofhtdrrllcilsfballcl Elem-Ode Arrays for MeChamsnc
8 16 The High Speed Channel Electrode
Contents xv
8 17 Hydrodynamic Electrodes Based on Impinging Jets 341
8 18 Sonovoltammetry 343
References 353
9 Voltarmnetry for Electroanalysis 355
9 1 Potential Step VoltammetricTechniques 355
9 2 Differential PulseVoltammetry 356
9 3 Square WaveVoltammetry 358
9 4 StrippingVoltammetry 362
9 5 Sono-electroanalysis 369
References 376
10 Voltammetry in Weakly Supported Media: Migration and Other Effects 377
10 1 Potentials and Fields in Fully Supported Voltammetry - 377
10 2 The Distribution of Ions Around a Charged Electrode 380
10 3 The Electrode—Solution Interface: Beyond the Gouy—Chapman
Theory 385
10 4 Double Layer Effect on Electrode Kinetics: Frumkin Effects 389
10 5AN Frumkin 391
10 6 Transport by Diffusion and by Migration 392
10 7 Measurement of Ion Mobilities 394
10 8 Liquid Junction Potentials 396
10 9 Chronoamperometry and Cyclic Voltammetry in Weakly
Supported Media 399
References 405
11 Voltammetry at the Nanoscale 407
11 1 Transport to Particles Supported on an Electrode 407
11 2 Nanoparticle Voltammetry: The Transport Changes as the
Electrode Shrinks in Size 415
11 3 Altered Chemistry at the Nanoscale 424
11 4 The Electrochemical Study of Nanoparticles in Solution:
“Nano-impacts” 426
References 428
Appendix: Simulation of Electrode Processes 431
A 1 Fick’s First and Second Laws 431
A 2 Boundary Conditions 432
A 3 Finite Difference Equations t 432
l sUijder s tanding Voltammetry
4 -Backward21mp1icitMethod
|
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| id | DE-604.BV045092323 |
| illustrated | Illustrated |
| indexdate | 2024-12-20T18:17:49Z |
| institution | BVB |
| isbn | 9781786345264 9781786345295 |
| language | English |
| lccn | 017060716 |
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| owner_facet | DE-29T DE-11 |
| physical | xvi, 439 Seiten Illustrationen, Diagramme (teilweise farbig) |
| publishDate | 2018 |
| publishDateSearch | 2018 |
| publishDateSort | 2018 |
| publisher | World Scientific |
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| spellingShingle | Compton, R. G. 1955- Banks, Craig E. Understanding voltammetry Voltammetry Textbooks Voltammetrie (DE-588)4188605-7 gnd Elektrochemie (DE-588)4014241-3 gnd |
| subject_GND | (DE-588)4188605-7 (DE-588)4014241-3 |
| title | Understanding voltammetry |
| title_auth | Understanding voltammetry |
| title_exact_search | Understanding voltammetry |
| title_full | Understanding voltammetry Richard G. Compton, Oxford University, UK; Craig E. Banks, Manchester Metropolitan University, UK |
| title_fullStr | Understanding voltammetry Richard G. Compton, Oxford University, UK; Craig E. Banks, Manchester Metropolitan University, UK |
| title_full_unstemmed | Understanding voltammetry Richard G. Compton, Oxford University, UK; Craig E. Banks, Manchester Metropolitan University, UK |
| title_short | Understanding voltammetry |
| title_sort | understanding voltammetry |
| topic | Voltammetry Textbooks Voltammetrie (DE-588)4188605-7 gnd Elektrochemie (DE-588)4014241-3 gnd |
| topic_facet | Voltammetry Textbooks Voltammetrie Elektrochemie |
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