One-pot or two-pot synthesis? Using a more facile and efficient method to synthesize Ni-phyllosilicate catalyst derived from 3D-SBA-15

Influence of Highly Stable Ni2+ Species in Ni Phyllosilicate Catalysts on Selective Hydrogenation of Furfural to Furfuryl Alcohol

“…Among which, the hydrothermal method has been employed for preparation of nickel phyllosilicate catalysts due to high crystallinity, handy experimental operation, environmental friendliness, and uniform dispersion of nickel phyllosilicate. However, a conventional hydrothermal reaction is carried out in an autoclave under harsh hydrothermal conditions at high temperatures (>180 °C) with long reaction times (>24 h), resulting in the loss of the surface silanol group, limited nickel loading (even though there are excess nickel and silica amounts), ,,, small amount of nickel phyllosilicate being formed, and large particles at relatively low hydrothermal temperatures (e.g., 120 and 160 °C) . Thus, it is a great challenge to improve and synthesize Ni phyllosilicates with high nickel contents under mild conditions and maintain the superior properties of nickel phyllosilicate.…”

“…It consumes large amounts of reagent and energy and requires a long operation time. One-pot synthesis of Ni phyllosilicates has recently been reported, for example, Chen et al 24 prepared 3D-SBA-15-derived Ni phyllosilicate via a one-pot and two-pot hydrothermal methods at 180 °C. One-pot synthesis exhibited small size nickel particles and showed high anti-sintering due to a strong metal–support interaction derived from nickel phyllosilicate.…”

Impact of preparation method on nickel speciation and methane dry reforming performance of Ni/SiO2 catalysts

“…For the Ni/SiO 2 -AE catalyst synthesized by the ammonia evaporation method, no phase of nickel oxide was observed, but only the phase of nickel phyllosilicate was shown, and 34.1, 36.7, and 60.5 were characteristic diffraction peaks of nickel silicate, Ni 3 Si 2 O 9 H 4 (JCPDS no. 49-1859) ( Zhang T et al, 2020 ; Chen et al, 2021 ; Zhang and Liu, 2021 ). Meanwhile, the distribution of nickel species was relatively uniform.…”

Biochar production from cellulose under reductant atmosphere: influence of the total pyrolysis time

“…15,16 Minimizing the preparation procedure to a unique step not only contributes to the lowering of the amount of generated residues and the nal energy cost but also efficiently enhanced the development of the circular economy of renewable resources. 17,18 Although some rst approaches have been made in recent years to obtain one-stage carbon-based catalysts [19][20][21][22] to the best of our knowledge, no work has yet been reported in which residual biomass is used as a carbon precursor to obtaining one-pot catalysts by pyrolysis procedures. The use of residual biomass as a carbon precursor in pyrolytic processes would become biochars an alternative promising alternative to replace conventional solid carbon-based catalysts, giving this type of material a great added value and helping to decrease the wastes production derived from lignocellulosic biomass resources.…”