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Features and Consequences of Isopropanol Burning off PTFE–rGO Aerogelsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 января 2022 г.
- Авторы: Baskakov Sergey A., Baskakova Yuliya V., Kabachkov Eugene N., Dremova Nadezhda N., Gutsev Gennady L., Shulga Yury M.
- Журнал: Langmuir
- Том: 37
- Номер: 33
- Год издания: 2021
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 10233
- Последняя страница: 10240
- DOI: 10.1021/acs.langmuir.1c01735
- Аннотация: An improved procedure for the preparation of aerogel granules of polytetrafluoroethylene–graphene oxide (PTFE–GO) with a composition of 50:50 (in wt %) and a specific density of 35 ± 2 mg/cm3 is described. The technique practically excludes the granule cracking. The specific density of the pellets after reduction using hydrazine vapor and annealing at 370 °C decreased to 29 ± 2 mg/cm3. The PTFE–reduced GO (rGO) pellets obtained were tested as a recyclable sorbent for isopropyl alcohol (IPA) in sorption/combustion cycles. It has been shown that the aerogel sorption capacity for IPA increases from 35.6 to 39.3 g/g as a result of alcohol burning off. During the combustion of IPA, the temperature of an individual pellet can exceed 300 °C. When several contingent pellets are burned, the temperature of their heating increases. The fine-pored structure of the near-surface layer of the granule is destroyed during the alcohol burning, the internal structure with larger pores is exposed, and the relative proportion of PTFE on the surface of the granules decreases. It was also shown that the specific surface area of PTFE–rGO increases from 26 to 49 m2/g during cycling.
- Добавил в систему: Кабачков Евгений Николаевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Иллюстрация | graf_abs.tif | 1,8 МБ | 6 апреля 2022 [evg] | |
| 2. | Полный текст | acs.langmuir.1c017352.pdf | 3,9 МБ | 6 апреля 2022 [evg] |