Electrooxidative Desulfurization of a Thiophene-Containing Model Fuel Using a Square Wave Potentiometry Technique
| Autor: | Soosan Rowshanzamir, Amir Behrouzifar, Zeinab Alipoor, Mansour Bazmi |
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| Rok vydání: | 2015 |
| Předmět: |
Aqueous solution
Chemistry General Chemical Engineering Inorganic chemistry Analytical chemistry Energy Engineering and Power Technology chemistry.chemical_element Square wave Electrochemistry Flue-gas desulfurization chemistry.chemical_compound Fuel Technology Adsorption Thiophene Cyclic voltammetry Platinum |
| Zdroj: | Energy & Fuels. 29:3292-3301 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.5b00354 |
| Popis: | A dynamic electrochemical technique was used for desulfurization of thiophene-containing solutions. First, adsorption of thiophene from an aqueous solution onto a platinum electrode surface and electrooxidative behavior of thiophene were studied using a cyclic voltammetry technique, and then, a square wave potentiometry method was utilized to electrochemically desulfurize the aqueous thiophene solution and a thiophene-containing model fuel. Results indicated that, for thiophene molecules, the best adsorption potential is 0.2 V and the maximum electrooxidation rate occurs at 1.1 V. Also, the optimal square wave frequency was found as 50 Hz. Ion chromatographic measurement of sulfate ion concentration revealed that reaction conversion was 100% in the electrooxidative desulfurization of aqueous thiophene solution. The high desulfurization efficiency can be attributed to excellent electrocatalytic activity of the platinum electrode and performing experiments at the best operating conditions. On the basis of g... |
| Databáze: | OpenAIRE |
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