Synthesis of Ni3Si4O10(OH)2 Porous Microspheres as Support of Pd Catalyst for Hydrogenation Reaction

Wang, Tingting; Liu, Chenyuan; Ma, Xinxin; Zhu, Wancheng; Lv, Xiaoxia; Zhang, Heng

doi:10.3390/nano9070998

Cited by 15 publications

(10 citation statements)

References 40 publications

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“…As observed in Table , this dissolution process, necessary for the formation of the phyllosilicate phases, affected the total specific surface area, which decreased by about 60 % compared with SBA‐15, while the pore volume was less affected by the dissolution‐reprecipitation process (a decrease by ∼20 %). The formation of a new population of pores of 3.9 nm diameter (Figure ‐b), related to the presence of phyllosilicate phases, was observed.…”

Section: Resultsmentioning

confidence: 99%

Phyllosilicate‐derived Nickel‐cobalt Bimetallic Nanoparticles for the Catalytic Hydrogenation of Imines, Oximes and N‐heteroarenes

et al. 2020

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The development of cost-effective, noble metal-free catalytic systems for the hydrogenation of unsaturated aliphatic, aromatic, and heterocyclic compounds is fundamental for future valorization of general feedstock. With this aim, we report here the preparation of highly dispersed bimetallic Ni/Co nanoparticles (NPs), by a one-pot deposition-precipitation of Ni and Co phases onto mesoporous SBA-15 silica. By adjusting the chemical composition in the starting mixture, three supported catalysts with different Ni to Co weight ratios were obtained, which were further subjected to treatments under reducing conditions at high temperatures. Characterization of the resulting solids evidenced a homogenous distribution of Ni and Co elements forming the NPs, the best results being obtained for Ni/Co-2 : 2 samples, for which 50 wt.% Ni-50 wt.% Co NPs are found located on the surface of the residual phyllosilicate. Ni/Co-2 : 2, presenting the best performances for the hydrogenation of 2-methyl-quinoline, was further evaluated in the catalytic hydrogenation of selected imines, oximes and Nheteroarenes. Due to the high dispersion of bimetallic NiÀ Co NPs, excellent properties (activity and selectivity) in the conversion of the selected substrates are reported.

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Section: Resultsmentioning

confidence: 99%

Phyllosilicate‐derived Nickel‐cobalt Bimetallic Nanoparticles for the Catalytic Hydrogenation of Imines, Oximes and N‐heteroarenes

et al. 2020

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“…Ni3Si2O5(OH)4 tends to aggregate together around the CO2 bubbles and self-assemble into larger particles, resulting in the porous structure of the final products. It was found that there were SiO2 particles formed on the surface of the microspheres under the conditions of low temperature or short time hydrothermal treatment, as revealed in the synthesis of Ni3Si4O10(OH)2 [20] . It is considered that besides the reaction shown in Eq.…”

Section: Effect Of Alkali Source On the Formation Of Ni3si2o5(oh)4 Microspheresmentioning

confidence: 98%

“…1. Previous study has found that the 2:1 type nickel phyllosilicate Ni3Si4O10(OH)2 can be synthesized with a low Ni/Si molar ratio (0.25:1) [20] . Fig.…”

Section: Composition and Morphology Of Ni3si2o5(oh)4 Microspheresmentioning

confidence: 99%

Synthesis of Hierarchical Porous Nickel Phyllosilicate Microspheres as Efficient Adsorbents for Removal of Basic Fuchsin

Wang¹,

Shi²,

Liu³

et al. 2021

Journal of Inorganic Materials

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Nickel phyllosilicates have shown considerable potential in many fields such as electrochemistry and catalysis owing to their specific structures, and increasing attention have been paid on the preparation and properties of them in recent years. In this study, Ni3Si2O5(OH)4 microspheres were synthesized via a hydrothermal method by using NiCl2 and tetraethyl orthosilicate (TEOS) as the raw materials. The effects of Ni/Si molar ratio and alkali source on the phase composition, morphology and textural property of the products were investigated. Under optimized conditions, the as-synthesized Ni3Si2O5(OH)4 microspheres presented a nanosheets-assembled morphology with an average diameter of ca. 2.5 μm, SBET of 119.6 m 2 • g -1 ; pore volume of 0.673 cm 3 • g -1 , and Zeta potential measurements showed they were negatively charged with the pH ranging from 3 to 10. When employed as the adsorbents for basic fuchsin (BF), the Ni3Si2O5(OH)4 microspheres showed an adsorption capacity of 120.7 mg• g -1 with the removal efficiency up to 96.6% from a 50 mg• L -1 solution, superior to most of the referred adsorbents in literatures, and the adsorption kinetic data can be well interpretated via the pseudosecond-order model. The data of the relationship between equilibrium adsorption capacity and BF concentration were well fitted by Freundlich isotherm model with the 1/n value of 0.1678, indicating that the surface was heterogeneous and the adsorption strength was strong.

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“…[ 170 ] Furthermore, porous Pd@Ni 3 Si 4 O 10 (OH) 2 SPs were synthesized by Zhang et al. for advanced styrene hydrogenation [ 173 ] and Yang et al. utilized porous Ti/Zr microspheres with reasonable cycle stability for the efficient synthesis of γ‐valerolactone, an important platform molecule and biofuel additive, from biobased ethyl levulinate.…”

Section: Supraparticles For Sustainabilitymentioning

confidence: 99%

Supraparticles for Sustainability

Wintzheimer

Reichstein

Groppe

et al. 2021

Adv Funct Materials

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The indispensable transformation to a (more) sustainable human society on this planet heavily relies on innovative technologies and advanced materials. The merits of nanoparticles (NPs) in this context are demonstrated widely during the last decades. Yet, it is believed that the impact of particle‐based nanomaterials to sustainability can be even further enhanced: taking NPs as building blocks enables the creation of more complex entities, so‐called supraparticles (SPs). Due to their evolving phenomena coupling, emergence, and colocalization, SPs enable completely new material functionalities. These new functionalities in SPs can be utilized to render six fields, essential to human life as it is conceived, more sustainable. These fields, selected based on an entropy‐rate‐related definition of sustainability, are as follows: 1) purification technologies and 2) agricultural delivery systems secure humans “fundamental needs.” 3) Energy storage and conversion, as well as 4) catalysis enable the “basic comfort.” 5) Extending materials lifetime and 6) bringing materials back in use ensure sustaining “modern life comfort.” In this review article, a perspective is provided on why and how the properties of SPs, and not simply properties of individual NPs or conventional bulk materials, may grant attractive alternative pathways in these fields.

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Synthesis of Ni3Si4O10(OH)2 Porous Microspheres as Support of Pd Catalyst for Hydrogenation Reaction

Cited by 15 publications

References 40 publications

Phyllosilicate‐derived Nickel‐cobalt Bimetallic Nanoparticles for the Catalytic Hydrogenation of Imines, Oximes and N‐heteroarenes

Phyllosilicate‐derived Nickel‐cobalt Bimetallic Nanoparticles for the Catalytic Hydrogenation of Imines, Oximes and N‐heteroarenes

Synthesis of Hierarchical Porous Nickel Phyllosilicate Microspheres as Efficient Adsorbents for Removal of Basic Fuchsin

Supraparticles for Sustainability

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