DOUBLE CHANNEL ELECTRODES AND THE MEASUREMENT OF HETEROGENEOUS REACTION-RATES AT THE SOLID LIQUID INTERFACE
The theory of collection efficiency measurements (under steady-state conditions) at double channel electrodes is extended to include the case where the species generated at the upstream electrode undergoes a heterogeneous reaction on the surface of the gap between the two electrodes. The problem is...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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Kluwer Academic Publishers
1988
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| _version_ | 1797057890059550720 |
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| author | Compton, R Stearn, G Unwin, P Barwise, A |
| author_facet | Compton, R Stearn, G Unwin, P Barwise, A |
| author_sort | Compton, R |
| collection | OXFORD |
| description | The theory of collection efficiency measurements (under steady-state conditions) at double channel electrodes is extended to include the case where the species generated at the upstream electrode undergoes a heterogeneous reaction on the surface of the gap between the two electrodes. The problem is treated numerically using the Backwards Implicit method, which allows the collection efficiency to be related to the corresponding value of the rate constant for the heterogeneous process for chosen double electrode geometries and solution flow rates. The use of the technique is illustrated with experiments in which bromine, generated at the upstream electrode by the oxidation of bromide ions (in 0.5 M sulphuric acid), reacts with a cloth dyed with Direct Red 80, and is subsequently collected at the downstream electrode through transport-controlled reduction to bromide. Good agreement is found between theory and experiment. © 1988 Chapman and Hall Ltd. |
| first_indexed | 2024-03-06T19:42:45Z |
| format | Journal article |
| id | oxford-uuid:2138d03b-80ae-4928-8938-50d8b161707e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:42:45Z |
| publishDate | 1988 |
| publisher | Kluwer Academic Publishers |
| record_format | dspace |
| spelling | oxford-uuid:2138d03b-80ae-4928-8938-50d8b161707e2022-03-26T11:32:08ZDOUBLE CHANNEL ELECTRODES AND THE MEASUREMENT OF HETEROGENEOUS REACTION-RATES AT THE SOLID LIQUID INTERFACEJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2138d03b-80ae-4928-8938-50d8b161707eEnglishSymplectic Elements at OxfordKluwer Academic Publishers1988Compton, RStearn, GUnwin, PBarwise, AThe theory of collection efficiency measurements (under steady-state conditions) at double channel electrodes is extended to include the case where the species generated at the upstream electrode undergoes a heterogeneous reaction on the surface of the gap between the two electrodes. The problem is treated numerically using the Backwards Implicit method, which allows the collection efficiency to be related to the corresponding value of the rate constant for the heterogeneous process for chosen double electrode geometries and solution flow rates. The use of the technique is illustrated with experiments in which bromine, generated at the upstream electrode by the oxidation of bromide ions (in 0.5 M sulphuric acid), reacts with a cloth dyed with Direct Red 80, and is subsequently collected at the downstream electrode through transport-controlled reduction to bromide. Good agreement is found between theory and experiment. © 1988 Chapman and Hall Ltd. |
| spellingShingle | Compton, R Stearn, G Unwin, P Barwise, A DOUBLE CHANNEL ELECTRODES AND THE MEASUREMENT OF HETEROGENEOUS REACTION-RATES AT THE SOLID LIQUID INTERFACE |
| title | DOUBLE CHANNEL ELECTRODES AND THE MEASUREMENT OF HETEROGENEOUS REACTION-RATES AT THE SOLID LIQUID INTERFACE |
| title_full | DOUBLE CHANNEL ELECTRODES AND THE MEASUREMENT OF HETEROGENEOUS REACTION-RATES AT THE SOLID LIQUID INTERFACE |
| title_fullStr | DOUBLE CHANNEL ELECTRODES AND THE MEASUREMENT OF HETEROGENEOUS REACTION-RATES AT THE SOLID LIQUID INTERFACE |
| title_full_unstemmed | DOUBLE CHANNEL ELECTRODES AND THE MEASUREMENT OF HETEROGENEOUS REACTION-RATES AT THE SOLID LIQUID INTERFACE |
| title_short | DOUBLE CHANNEL ELECTRODES AND THE MEASUREMENT OF HETEROGENEOUS REACTION-RATES AT THE SOLID LIQUID INTERFACE |
| title_sort | double channel electrodes and the measurement of heterogeneous reaction rates at the solid liquid interface |
| work_keys_str_mv | AT comptonr doublechannelelectrodesandthemeasurementofheterogeneousreactionratesatthesolidliquidinterface AT stearng doublechannelelectrodesandthemeasurementofheterogeneousreactionratesatthesolidliquidinterface AT unwinp doublechannelelectrodesandthemeasurementofheterogeneousreactionratesatthesolidliquidinterface AT barwisea doublechannelelectrodesandthemeasurementofheterogeneousreactionratesatthesolidliquidinterface |