Pulsed Corona Discharge Induced Hydroxyl Radical Transfer Through the Gas-Liquid Interface
| Parent link: | Scientific Reports Vol. 7.— 2017.— [16152, 6 p.] |
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| Автор: | |
| Співавтор: | |
| Інші автори: | , |
| Резюме: | Title screen The highly energetic electrons in non-thermal plasma generated by gas phase pulsed corona discharge (PCD) produce hydroxyl (OH) radicals via collision reactions with water molecules. Previous work has established that OH radicals are formed at the plasma-liquid interface, making it an important location for the oxidation of aqueous pollutants. Here, by contacting water as aerosol with PCD plasma, it is shown that OH radicals are produced on the gas side of the interface, and not in the liquid phase. It is also demonstrated that the gas-liquid interfacial boundary poses a barrier for the OH radicals, one they need to cross for reactive affinity with dissolved components, and that this process requires a gaseous atomic H scavenger. For gaseous oxidation, a scavenger, oxygen in common cases, is an advantage but not a requirement. OH radical efficiency in liquid phase reactions is strongly temperature dependent as radical termination reaction rates increase with temperature. |
| Мова: | Англійська |
| Опубліковано: |
2017
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| Предмети: | |
| Онлайн доступ: | https://doi.org/10.1038/s41598-017-16333-1 |
| Формат: | Електронний ресурс Частина з книги |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666901 |
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| 200 | 1 | |a Pulsed Corona Discharge Induced Hydroxyl Radical Transfer Through the Gas-Liquid Interface |f P. Ajo, Ya. I. Kornev, S. Preis | |
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| 300 | |a Title screen | ||
| 320 | |a [References: 26 tit.] | ||
| 330 | |a The highly energetic electrons in non-thermal plasma generated by gas phase pulsed corona discharge (PCD) produce hydroxyl (OH) radicals via collision reactions with water molecules. Previous work has established that OH radicals are formed at the plasma-liquid interface, making it an important location for the oxidation of aqueous pollutants. Here, by contacting water as aerosol with PCD plasma, it is shown that OH radicals are produced on the gas side of the interface, and not in the liquid phase. It is also demonstrated that the gas-liquid interfacial boundary poses a barrier for the OH radicals, one they need to cross for reactive affinity with dissolved components, and that this process requires a gaseous atomic H scavenger. For gaseous oxidation, a scavenger, oxygen in common cases, is an advantage but not a requirement. OH radical efficiency in liquid phase reactions is strongly temperature dependent as radical termination reaction rates increase with temperature. | ||
| 461 | |t Scientific Reports | ||
| 463 | |t Vol. 7 |v [16152, 6 p.] |d 2017 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a Chemical engineering | |
| 610 | 1 | |a Reaction kinetics and dynamics | |
| 610 | 1 | |a Process chemistry | |
| 700 | 1 | |a Ajo |b P. |g Petri | |
| 701 | 1 | |a Kornev |b Ya. I. |c specialist in the field of electrical engineering |c senior research fellow at the Tomsk Polytechnic University, candidate of technical Sciences |f 1976- |g Yakov Ivanovich |3 (RuTPU)RU\TPU\pers\33300 | |
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