Application of POSS Nanotechnology for Preparation of Efficient Ni Catalysts for Hydrogen Production
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Eurasian Chemico-Technological Journal
ISSN: 1562-3920
|
| Вых. Данные |
Год: 2017,
Том: 19,
Номер: 1,
Страницы: 3-16
Страниц
: 14
DOI:
10.18321/ectj497
|
| Ключевые слова |
Autothermal reforming of methane, Hydrogen production, Nanomaterials, Ni nanoparticles, POSS nanotechnology |
| Авторы |
Ismagilov I.Z.
1
,
Matus E.V.
1
,
Kuznetsov V.V.
1
,
Yashnik S.A.
1
,
Kerzhentsev M.A.
1
,
Gerritsen G.
2
,
Abbenhuis H.C.L.
2
,
Ismagilov Z.R.
1,3
|
| Организации |
| 1 |
Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva, 5, 630090, Novosibirsk, Russia
|
| 2 |
Hybrid Catalysis B.V., Den Dolech 2, Eindhoven 5612, AZ, the Netherlands
|
| 3 |
Institute of Coal Chemistry and Material Science SB RAS, pr. Sovetskiy, 18, 650000, Kemerovo, Russia
|
|
Информация о финансировании (2)
|
1
|
European Commission
|
262840 FP7-NMP-2010-LARGE-4 DEMCAMER
|
|
2
|
Федеральное агентство научных организаций России
|
0303-2016-0004
|
POSS (polyhedral oligomeric silsesquioxanes) nanotechnology was applied for preparation of efficient Ni catalysts for hydrogen production through autothermal reforming of methane (ATR of CH4). The novel metal-POSS precursor [Nickel (II) ‒ HeptaisobutylPOSS (C4H9)7Si7O9(OH)O2Ni] of Ni nanoparticles was introduced into Ce0.5Zr0.5O2 support with following calcination and reduction stages of activation. The peculiarity of the genesis of Ni/SiO2/Ce0.5Zr0.5O2 nanomaterials and their characteristics versus deposition mode were studied by X-ray fluorescence spectroscopy, thermal analysis, N2 adsorption, X-ray diffraction, high-resolution transmission electron microscopy and H2 temperature-programmed reduction. The two kinds of supported Ni-containing particles were observed: highly dispersed Ni forms (1‒2 nm) and large Ni-containing particles (up to 50‒100 nm in size). It was demonstrated that the textural, structural, red-ox and, consequently, catalytic properties of ex-Ni-POSS catalysts depend on the deposition mode. The increase of a portion of difficultly reduced Ni2+ species is found upon application of intermediate calcination during Ni-POSS deposition that has detrimental effect on the activity of catalyst in ATR of CH4. The Ni/SiO2/Ce0.5Zr0.5O2 catalyst prepared by one-step Ni-POSS deposition exhibits the highest H2 yield ‒ 80% at T = 800 °C.