Analytic solutions for double potential step chronoamplometry for first-order mechanisms at planar electrodes

Theoretical and experimental study of the catalytic hydrogen evolution reaction in the presence of an adsorbed catalyst by means of square-wave voltammetry

“…This stock solution was then diluted as required. Britton-Robinson buffers (pH [3][4][5][6][7][8] were prepared by addition of 0.2 mol/L sodium hydroxide to mixture of 0.04 mol/L acetic acid, 0.04 mol/L boric acid and 0.04 mol/L ortophosphoric acid. 0.2 mol/L MOPS buffer at pH 6.6, was prepared by addition of 0.2 mol/L sodium hydroxide to 0.2 mol/ L 3-(N-morpholino)propanesulphonic acid (MOPS).…”

“…Similar effect can be achieved if the electrode mechanism involves regeneration of the electroactive reactant by means of a homogenous chemical reaction. The latter electrode reaction pathway is know as ''catalytic electrode mechanism'' that has been a subject of numerous studies under conditions of classical polarography [1][2][3][4], double potential step chronoamperometry [5], differential pulse polarography [6], squarewave voltammetry [7][8][9][10], etc. Obviously, an electrode mechanism in which both adsorption and catalytic phenomena simultaneously occur, is of particular analytical importance, because of the synergetic effect of these phenomena.…”

Surface Catalytic Mechanism in Square-Wave Voltammetry

“…A similar effect on the sensitivity of the method can be achieved if the product of the redox reaction regenerates the substance reacting at the electrode, by means of a homogenous chemical reaction. The latter case, known as a catalytic electrode mechanism, attracted considerable interest in the theory of classical DC polarography [1][2][3][4], double potential step chronoamperometry [5], differential pulse polarography [6], and square-wave voltammetry [7,8].…”

Electron Transfer Reactivity Patterns at Chemically Modified Electrodes: Fundamentals and Application to the Optimization of Redox Recycling Amplification Systems

“…Potential step methods, such as chronoamperometry [103,[131][132][133][134][135][136][137][138][139][140] and chronocoulometry [141][142][143][144][145][146] are often useful for:…”