Chitosan-Pd0 nanoparticles encapsulated in Al, Co-pillared montmorillonite by one-pot process

Sun, Kailang; Zhang, Taojun; Zhou, Jie; Liu, Yonghong; Zeng, Minfeng; Yang, Zhen; Feng, Ruokun; Ren, Xiaorong; Zhang, Peng; Wang, Baoyi; Cao, Xingzhong

doi:10.1016/j.clay.2023.107192

Cited by 6 publications

(1 citation statement)

References 81 publications

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“…The preparation process of the AlMn-PM nanocomposite is in accordance with recent work of ref [32]. The AlMn oxide pillar sources used were 0.2 mol/L of AlCl 3 and Mn(NO 3 ) 2 solution.…”

Section: Catalyst Preparationmentioning

confidence: 99%

Modification of Pillared Intercalated Montmorillonite Clay as Heterogeneous Pd Catalyst Supports

Sun,

Liu,

Zhang

et al. 2023

Molecules

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Montmorillonite clay was modified by pillaring with AlMn oxides in different Al/Mn ratios and intercalation of two kinds of N-containing polymers (i.e., chitosan (CS) and polyvinyl pyrrolidinone (PVP)) chains. The modified pillared montmorillonite clay (PM) showed a rich two-dimensional layered porous structure with tunable parameters, such as large interlayer spacing, high specific area, and large porous volume. They were then used as supports for Pd nanoparticles. As applied in coupling reactions of aryl halides with terminal alkynes, Pd@CS/AlMn-PM showed better comprehensive catalytic performance than Pd@PVP/AlMn-PM. This was mainly attributed to its higher specific area, stronger chelation to Pd species, and better solvent resistance.

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“…The preparation process of the AlMn-PM nanocomposite is in accordance with recent work of ref [32]. The AlMn oxide pillar sources used were 0.2 mol/L of AlCl 3 and Mn(NO 3 ) 2 solution.…”

Section: Catalyst Preparationmentioning

confidence: 99%

Modification of Pillared Intercalated Montmorillonite Clay as Heterogeneous Pd Catalyst Supports

Sun,

Liu,

Zhang

et al. 2023

Molecules

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Pd Nanoparticle Supported on N‐Doped Carbon Derived from Sodium Alginate/Melamine Blends as Efficient Heterogeneous Catalyst for Heck Reactions

Zhou,

Wu,

Liu

et al. 2024

ChemCatChem

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N‐doped porous carbon shows great potential in the field of heterogenous supports due to its high porosity, large surface area, rich active sites, and strong chelation with catalytic active metals species. Herein, we successfully prepared a novel N‐doped porous carbon derived from sodium alginate/melamine blends (SAMNC) with different mass ratio through a simple carbonization and activation process. Hierarchical porous structure of the derived N‐doped carbon has been confirmed with the SEM, TEM, and N2 adsorption characterization. After Na2PdCl4 solution impregnation and further reduction process, Pd0 nanoparticles have been uniformly immobilized on the SAMNC support to produce novel Pd@SAMNC catalyst. The optimal Pd@SAMNC‐0.6 possesses a high N content (5.13%), Pd content (5.90%), large BET specific surface area of 1884.5 m2·g−1. Positron annihilation lifetime spectroscopy (PALS) investigation of the porous carbon materials provided the sub‐nano level microporous information proofs of Pd@SAMNC‐0.6 had the capability to provide more active sites for reactions than commercial Pd supported on activated carbon (Pd@AC). Pd@SAMNC‐0.6 catalyst showed superior catalytic efficiency in Heck coupling reaction between aromatic halides and alkenes and can be recycled for 17 runs without significant decrease in catalytic efficiency.

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Effect of polyelectrolyte structure on perchlorate adsorption performance by functionalized montmorillonite

Xiao,

Liang,

Komarneni

et al. 2024

Chemical Engineering Journal

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Chitosan-Pd0 nanoparticles encapsulated in Al, Co-pillared montmorillonite by one-pot process

Cited by 6 publications

References 81 publications

Modification of Pillared Intercalated Montmorillonite Clay as Heterogeneous Pd Catalyst Supports

Modification of Pillared Intercalated Montmorillonite Clay as Heterogeneous Pd Catalyst Supports

Pd Nanoparticle Supported on N‐Doped Carbon Derived from Sodium Alginate/Melamine Blends as Efficient Heterogeneous Catalyst for Heck Reactions

Effect of polyelectrolyte structure on perchlorate adsorption performance by functionalized montmorillonite

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