Pd-Nanoparticles@layered double hydroxide/reduced graphene oxide (Pd NPs@LDH/rGO) nanocomposite catalysts for highly efficient green reduction of aromatic nitro compounds

Islam, Dewan Azharul; Acharya, H. N.

doi:10.1039/d1nj05377a

Cited by 8 publications

(1 citation statement)

References 56 publications

(58 reference statements)

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“…These topotactically transformed LDHs have been applied for various organic reactions, such as epoxidation of olefins, reduction of aromatic nitro compounds, hydroxylation of phenol, halide exchanges, aldol, and Knoevenagel condensations, and Michael addition reactions. [ 11m,191 ] Classically, the encapsulation of POMs (in the interlayers or on the surface), the family of molecules obtained from the condensation of metal oxide polyhedras, in LDHs present synergistic effects toward improving catalytic activity and substantial stability. [ 55b,e,h,74,192 ] In addition, various guest species, for instance, Keggin β‐Isocupreidinate, have been intercalated in LDHs to improve the catalytic efficiency.…”

Section: Applicationsmentioning

confidence: 99%

Trends in Layered Double Hydroxides‐Based Advanced Nanocomposites: Recent Progress and Latest Advancements

Chen

Xia

Mende

et al. 2022

Adv Materials Inter

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Recently, layered double hydroxides (LDHs) have gathered vast interest due to overall positive charge, unique crystallinity, and biocompatibility for diverse applications. Despite the advantageous attributes, these hydrotalcites often result in several limitations concerning the application requirements, such as aggregation, as well as poor chemical and thermal stabilities, hindering their scale‐up progress and practical utilization. In addressing these issues, the recent advancements in the fabrication of intelligent LDHs nanocomposites based on organically (polymer/polyelectrolyte)‐modified and inorganic (metal)‐composited architectures are systematically presented. Initially, a brief note on the shortcomings in various fields and the chemistry of these pristine LDHs is given. Then, various synthetic strategies used to fabricate these emerging LDH nanocomposites are comprehensively emphasized, focusing on the advancements in their structure and applicability. In addition, the effects of various attractive physicochemical attributes of LDHs and their nanocomposite forms are discussed, including their applicability in adsorption, biomedicine, catalysis, energy, and environment‐related applications. In summary, this article is concluded with an outlook concerning the positioning of LDH‐based nanocomposites compared to other innovative materials, as well as the current challenges and future requirements for scale‐up.

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Section: Applicationsmentioning

confidence: 99%

Trends in Layered Double Hydroxides‐Based Advanced Nanocomposites: Recent Progress and Latest Advancements

Chen

Xia

Mende

et al. 2022

Adv Materials Inter

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Tailored Engineering of Layered Double Hydroxide Catalysts for Biomass Valorization: A Way Towards Waste to Wealth

Kumar,

Choudhary,

Sharma

et al. 2024

ChemSusChem

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Layered double hydroxides (LDH) have significant attention in recent times due to their unique characteristic properties, including layered structure, variable compositions, tunable acidity and basicity, memory effect, and their ability to transform into various kinds of catalysts, which make them desirable for various types of catalytic applications, such as electrocatalysis, photocatalysis, and thermocatalysis. In addition, the upcycling of lignocellulose biomass and its derived compounds has emerged as a promising strategy for the synthesis of valuable products and fine chemicals. The current review focuses on recent advancements in LDH‐based catalysts for biomass conversion reactions. Specifically, this review highlights the structural features and advantages of LDH and LDH‐derived catalysts for biomass conversion reactions, followed by a detailed summary of the different synthesis methods and different strategies used to tailor their properties. Subsequently, LDH‐based catalysts for hydrogenation, oxidation, coupling, and isomerization reactions of biomass‐derived molecules are critically summarized in a very detailed manner. The review concludes with a discussion on future research directions in this field which anticipates that further exploration of LDH‐based catalysts and integration of cutting‐edge technologies into biomass conversion reactions hold promise for addressing future energy challenges, potentially leading to a carbon‐neutral or carbon‐positive future.

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Fabrication of Pd NPs/Mg–Al LDH via a facile one-step hydrothermal method as highly active and stable heterogeneous catalyst for Heck coupling reaction

Xu,

Qiu,

Wang

et al. 2023

J Mater Sci

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Pd-Nanoparticles@layered double hydroxide/reduced graphene oxide (Pd NPs@LDH/rGO) nanocomposite catalysts for highly efficient green reduction of aromatic nitro compounds

Abstract: A facile chemical method is developed to fabricate well-dispersed and an approx. 5 nm sized Pd-nanoparticles (Pd-NPs) deposited ZnAl-LDH/rGO nanocomposite (Pd NPs@LDH/rGO) as a highly efficient and stable catalyst for...

Cited by 8 publications

References 56 publications

Trends in Layered Double Hydroxides‐Based Advanced Nanocomposites: Recent Progress and Latest Advancements

Trends in Layered Double Hydroxides‐Based Advanced Nanocomposites: Recent Progress and Latest Advancements

Tailored Engineering of Layered Double Hydroxide Catalysts for Biomass Valorization: A Way Towards Waste to Wealth

Fabrication of Pd NPs/Mg–Al LDH via a facile one-step hydrothermal method as highly active and stable heterogeneous catalyst for Heck coupling reaction

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