Application of POSS Nanotechnology for Preparation of Efficient Ni Catalysts for Hydrogen Production Full article
| Journal |
Eurasian Chemico-Technological Journal
ISSN: 1562-3920 |
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| Output data | Year: 2017, Volume: 19, Number: 1, Pages: 3-16 Pages count : 14 DOI: 10.18321/ectj497 | ||||||
| Tags | Autothermal reforming of methane, Hydrogen production, Nanomaterials, Ni nanoparticles, POSS nanotechnology | ||||||
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| Affiliations |
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Funding (2)
| 1 | European Commission | 262840 FP7-NMP-2010-LARGE-4 DEMCAMER |
| 2 | Federal Agency for Scientific Organizations | 0303-2016-0004 |
Abstract:
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.
Cite:
Ismagilov I.Z.
, Matus E.V.
, Kuznetsov V.V.
, Yashnik S.A.
, Kerzhentsev M.A.
, Gerritsen G.
, Abbenhuis H.C.L.
, Ismagilov Z.R.
Application of POSS Nanotechnology for Preparation of Efficient Ni Catalysts for Hydrogen Production
Eurasian Chemico-Technological Journal. 2017.
V.19. N1. P.3-16. DOI: 10.18321/ectj497
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Application of POSS Nanotechnology for Preparation of Efficient Ni Catalysts for Hydrogen Production
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Dates:
| Submitted: | Aug 14, 2016 |
| Accepted: | Nov 28, 2016 |
| Published print: | Jan 25, 2017 |
| Published online: | Jun 19, 2017 |
Identifiers:
| Web of science: | WOS:000405987000001 |
| Scopus: | 2-s2.0-85025152094 |
| Elibrary: | 31100309 |
| Chemical Abstracts: | 2019:696909 |
| OpenAlex: | W2710519557 |