Влияние механического синтеза на десорбцию водорода в композитах на основе гидрида магния и металл-органических структур MIL-101
| Parent link: | Курзина, И. А. (химик ; 1972-). Перспективы развития фундаментальных наук=Prospects of Fundamental Sciences Development: сборник научных трудов XX Международной конференции студентов, аспирантов и молодых ученых, г. Томск, 25-28 апреля 2023 г..— .— Томск: Изд-во ТПУ, 2023 Т. 1 : Физика.— 2023.— С. 240-242 |
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| Résumé: | Заглавие с экрана Hydrogen energy is an alternative to the current energy scenario based on fossil fuel consumption, which creates huge economic and environmental problems. In this context, the development of a safe, efficient and economical way to store hydrogen is a necessary step in order to become more competitive with other fuels. Metal hydrides, in particular magnesium hydride MgH2, are a promising method for storing hydrogen, but magnesium hydride has a high desorption activation energy, and a lot of energy must be applied to extract hydrogen. Therefore, it is necessary to develop a technique to reduce this energy. One such method is the synthesis of magnesium hydride with MIL-101 metal-organic framework structures, which makes it possible to lower the activation energy of hydrogen desorption. In the experimental part of the work, composite materials based on MgH2–5 wt % MIL-101(Cr) were obtained. The mechanical synthesis of the MgH2–5 wt. % MIL-101(Cr) composite was carried out in a planetary ball mill with the following parameters: the mass ratio of balls to powder was 20:1, the duration was 60 minutes, and the rotation frequency was 15 Hz. The peak temperature of desorption from magnesium hydride MgH2 is 719 K at a heating rate of 283 K/min. To evaluate the efficiency of hydrogen desorption from the MgH2+MIL-101(Cr) composite, ln(β/Tp2) versus 1000/Tp was plotted (where β is the heating rate and Tp is the temperature of the hydrogen yield peak) for pure MgH2 and the MgH2–5 wt % MIL-101 composite (Cr). The activation energy of hydrogen desorption for the MgH2–5 wt % MIL-101(Cr) composite is 36% lower than for pure magnesium hydride and is (120 ± 2) kJ/mol. This is how a technique for obtaining a composite based on magnesium hydride and MIL-101(Cr) metal-organic framework structures is being developed Текстовый файл |
| Langue: | russe |
| Publié: |
2023
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| Accès en ligne: | http://earchive.tpu.ru/handle/11683/80809 |
| Format: | Électronique Chapitre de livre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=673260 |
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| 200 | 1 | |a Влияние механического синтеза на десорбцию водорода в композитах на основе гидрида магния и металл-органических структур MIL-101 |f Е. С. Леонова, Н. Курдюмов. Р. Р. Эльман |g науч. рук. В. Н. Кудияров ; Инженерная школа ядерных технологий НИ ТПУ |d Effect of mechanical synthesis on hydrogen desorption in composites based on magnesium hydride and metal-organic structures MIL-101 |z eng | |
| 300 | |a Заглавие с экрана | ||
| 320 | |a Библиография: с. 242 | ||
| 330 | |a Hydrogen energy is an alternative to the current energy scenario based on fossil fuel consumption, which creates huge economic and environmental problems. In this context, the development of a safe, efficient and economical way to store hydrogen is a necessary step in order to become more competitive with other fuels. Metal hydrides, in particular magnesium hydride MgH2, are a promising method for storing hydrogen, but magnesium hydride has a high desorption activation energy, and a lot of energy must be applied to extract hydrogen. Therefore, it is necessary to develop a technique to reduce this energy. One such method is the synthesis of magnesium hydride with MIL-101 metal-organic framework structures, which makes it possible to lower the activation energy of hydrogen desorption. In the experimental part of the work, composite materials based on MgH2–5 wt % MIL-101(Cr) were obtained. The mechanical synthesis of the MgH2–5 wt. % MIL-101(Cr) composite was carried out in a planetary ball mill with the following parameters: the mass ratio of balls to powder was 20:1, the duration was 60 minutes, and the rotation frequency was 15 Hz. The peak temperature of desorption from magnesium hydride MgH2 is 719 K at a heating rate of 283 K/min. To evaluate the efficiency of hydrogen desorption from the MgH2+MIL-101(Cr) composite, ln(β/Tp2) versus 1000/Tp was plotted (where β is the heating rate and Tp is the temperature of the hydrogen yield peak) for pure MgH2 and the MgH2–5 wt % MIL-101 composite (Cr). The activation energy of hydrogen desorption for the MgH2–5 wt % MIL-101(Cr) composite is 36% lower than for pure magnesium hydride and is (120 ± 2) kJ/mol. This is how a technique for obtaining a composite based on magnesium hydride and MIL-101(Cr) metal-organic framework structures is being developed | ||
| 336 | |a Текстовый файл | ||
| 461 | 1 | |0 636133 |t Перспективы развития фундаментальных наук |l Prospects of Fundamental Sciences Development |o сборник научных трудов XX Международной конференции студентов, аспирантов и молодых ученых, г. Томск, 25-28 апреля 2023 г. |d 2023 |9 636133 |a Курзина, И. А. (химик ; 1972-) |c Томск |n Изд-во ТПУ | |
| 463 | 1 | |0 669915 |t Т. 1 : Физика |v С. 240-242 |d 2023 |9 669915 |p 1 файл (75,9 MB, 442 с.) |u conference_tpu-2023-C21_V1.pdf |l Volume 1. Physics | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a защита окружающей среды | |
| 610 | 1 | |a источники энергии | |
| 610 | 1 | |a альтернативная энергия | |
| 610 | 1 | |a композиционные материалы | |
| 610 | 1 | |a синтез композита | |
| 610 | 1 | |a планетарная шаровая мельница | |
| 610 | 1 | |a водород | |
| 610 | 1 | |a сканирующая электронная микроскопия | |
| 700 | 1 | |a Леонова |b Е. С. | |
| 701 | 1 | |a Курдюмов |b Н. |c физик |c инженер Томского политехнического университета |f 1997- |g Никита |9 21858 | |
| 701 | 1 | |a Эльман |b Р. Р. |c физик |c инженер Томского политехнического университета |f 1997- |g Роман Романович |9 22618 | |
| 702 | 1 | |a Кудияров |b В. Н. |c физик |c доцент Томского политехнического университета, кандидат технических наук |f 1990- |g Виктор Николаевич |4 727 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа ядерных технологий |b Отделение экспериментальной физики |9 28346 |
| 801 | 0 | |a RU |b 63413507 |c 20240621 |g RCR | |
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| 942 | |c CF | ||