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• W2138301096 endingPage "11838" @default.
• W2138301096 startingPage "11827" @default.
• W2138301096 abstract "The electron transfer (ET) kinetics of three redox couples in aqueous solution, IrCl6(2-/3-), Ru(NH3)6(3+/2+) and Fe(CN)6(4-/3-), on different grades of highly oriented pyrolytic graphite (HOPG) have been investigated in a droplet-cell setup. This simple configuration allows measurements to be made on a very short time scale after cleavage of HOPG, so as to minimise possible effects from (atmospheric) contamination, and with minimal, if any, change to the HOPG surface. However, the droplet-cell geometry differs from more conventional electrochemical setups and is more prone to ohmic drop effects. The magnitude of ohmic drop is elucidated by modelling the electric field in a typical droplet configuration. These simulations enable ohmic effects to be minimised practically by optimising the positions of the counter and reference electrodes in the droplet, and by using a concentration ratio of electrolyte to redox species that is higher than used conventionally. It is shown that the ET kinetics for all of the redox species studied herein is fast on all grades of HOPG and lower limits for ET rate constants are deduced. For IrCl6(2-/3-) and Fe(CN)6(4-/3-), ET on HOPG is at least as fast as on Pt electrodes, and for Ru(NH3)6(3+/2+) ET kinetics on HOPG is comparable to Pt electrodes. Given the considerable difference in the density of electronic states (DOS) between graphite and metal electrodes, the results tend to suggest that the DOS of the electrode does not play an important role in the ET kinetics of these outer-sphere redox couples over the range of values encompassing HOPG and metals. This can be rationalised because the DOS of all of these different electrode materials is orders of magnitude larger than those of the redox species in solution, so that with strong electronic coupling between the redox couple and electrode (adiabatic electron transfer) the electronic structure of the electrode becomes a relatively unimportant factor in the ET kinetics." @default.
• W2138301096 created "2016-06-24" @default.
• W2138301096 creator A5013672164 @default.
• W2138301096 creator A5014864255 @default.
• W2138301096 creator A5063156360 @default.
• W2138301096 creator A5065851751 @default.
• W2138301096 date "2015-01-01" @default.
• W2138301096 modified "2023-10-18" @default.
• W2138301096 title "Electrochemistry at highly oriented pyrolytic graphite (HOPG): lower limit for the kinetics of outer-sphere redox processes and general implications for electron transfer models" @default.
• W2138301096 cites W1822170763 @default.
• W2138301096 cites W1900263208 @default.
• W2138301096 cites W1964204935 @default.
• W2138301096 cites W1964504123 @default.
• W2138301096 cites W1965085695 @default.
• W2138301096 cites W1966962631 @default.
• W2138301096 cites W1969300761 @default.
• W2138301096 cites W1969621006 @default.
• W2138301096 cites W1970495978 @default.
• W2138301096 cites W1971660208 @default.
• W2138301096 cites W1972597107 @default.
• W2138301096 cites W1974304353 @default.
• W2138301096 cites W1974755515 @default.
• W2138301096 cites W1974941303 @default.
• W2138301096 cites W1975614742 @default.
• W2138301096 cites W1975632054 @default.
• W2138301096 cites W1978760103 @default.
• W2138301096 cites W1978901845 @default.
• W2138301096 cites W1979088499 @default.
• W2138301096 cites W1983491755 @default.
• W2138301096 cites W1986202878 @default.
• W2138301096 cites W1986210607 @default.
• W2138301096 cites W1986771165 @default.
• W2138301096 cites W1988006762 @default.
• W2138301096 cites W1989762070 @default.
• W2138301096 cites W1990325982 @default.
• W2138301096 cites W1991545630 @default.
• W2138301096 cites W1993307750 @default.
• W2138301096 cites W1993345512 @default.
• W2138301096 cites W1995073255 @default.
• W2138301096 cites W1997031243 @default.
• W2138301096 cites W1998932417 @default.
• W2138301096 cites W1999195208 @default.
• W2138301096 cites W2008250160 @default.
• W2138301096 cites W2008618773 @default.
• W2138301096 cites W2012637481 @default.
• W2138301096 cites W2013812022 @default.
• W2138301096 cites W2014209800 @default.
• W2138301096 cites W2015497955 @default.
• W2138301096 cites W2015580438 @default.
• W2138301096 cites W2018063573 @default.
• W2138301096 cites W2018294724 @default.
• W2138301096 cites W2019039362 @default.
• W2138301096 cites W2020126757 @default.
• W2138301096 cites W2022830753 @default.
• W2138301096 cites W2023006709 @default.
• W2138301096 cites W2023990607 @default.
• W2138301096 cites W2024744166 @default.
• W2138301096 cites W2025913989 @default.
• W2138301096 cites W2025946073 @default.
• W2138301096 cites W2027320673 @default.
• W2138301096 cites W2028628425 @default.
• W2138301096 cites W2029291565 @default.
• W2138301096 cites W2033428609 @default.
• W2138301096 cites W2035783925 @default.
• W2138301096 cites W2037259160 @default.
• W2138301096 cites W2038570380 @default.
• W2138301096 cites W2039296412 @default.
• W2138301096 cites W2046933034 @default.
• W2138301096 cites W2049760144 @default.
• W2138301096 cites W2055178254 @default.
• W2138301096 cites W2056901187 @default.
• W2138301096 cites W2059862350 @default.
• W2138301096 cites W2060991569 @default.
• W2138301096 cites W2061505993 @default.
• W2138301096 cites W2061680435 @default.
• W2138301096 cites W2062430066 @default.
• W2138301096 cites W2062505400 @default.
• W2138301096 cites W2063187793 @default.
• W2138301096 cites W2064877092 @default.
• W2138301096 cites W2065962865 @default.
• W2138301096 cites W2067238339 @default.
• W2138301096 cites W2067477425 @default.
• W2138301096 cites W2068373636 @default.
• W2138301096 cites W2070694846 @default.
• W2138301096 cites W2072417075 @default.
• W2138301096 cites W2076853423 @default.
• W2138301096 cites W2077670457 @default.
• W2138301096 cites W2079377050 @default.
• W2138301096 cites W2079962302 @default.
• W2138301096 cites W2080870150 @default.
• W2138301096 cites W2085850192 @default.
• W2138301096 cites W2090920532 @default.
• W2138301096 cites W2091676645 @default.
• W2138301096 cites W2093319048 @default.
• W2138301096 cites W2093780336 @default.
• W2138301096 cites W2095114847 @default.
• W2138301096 cites W2109940960 @default.
• W2138301096 cites W2120279033 @default.

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