The facile synthesis of aerogel-like alumina highly-loaded with gold nanoparticles

Nesterov, N. S.; Shalygin, A. S.; Glazneva, Tatiana S.; Pakharukova, Vera P.; Martyanov, Oleg N.

doi:10.1007/s13404-021-00294-5

Cited by 4 publications

(1 citation statement)

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“…We have proposed an original approach to the synthesis of metal catalysts, which is based on SAS co-precipitation of stable oxide sols [25] and the addition of water cosolvent, as a tool to enhance metal mixing and avoid phase separation [26]. The oxide sols formed a matrix to stabilize Ni catalysts [27] and Au nanomaterials [28,29]. Series of Ni-Cu catalysts for anisole hydrodeoxygenation were synthesized by SAS co-precipitation [30,31].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Catalytic Precursors Based on Mixed Ni-Al Oxides by Supercritical Antisolvent Co-Precipitation

et al. 2022

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Mixed Ni-Al oxide catalytic precursors with different elemental ratios (20, 50, and 80 wt.% Ni0) were synthesized using green supercritical antisolvent co-precipitation (SAS). The obtained oxide precursors and metal catalysts were characterized in detail by X-ray diffraction (XRD) analysis, atomic pair distribution function (PDF) analysis, CO adsorption, and high-resolution transmission electron microscopy (HRTEM). It was found that the composition and structure of the Ni-Al precursors are related to the Ni content. The mixed Ni1−xAlxO oxide with NiO-based crystal structure was formed in the Ni-enriched sample, whereas the highly dispersed NiAl2O4 spinel was observed in the Al-enriched sample. The obtained metal catalysts were tested in the process of anisole H2-free hydrogenation. 2-PrOH was used as a hydrogen donor. The catalyst with 50 wt.% Ni0 demonstrated the highest activity in the hydrogenation process.

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