Recent developments of metallic nanoparticles and their catalytic activity in organic reactions

Abstract

During the last two decades, with the development of nanotechnology, various nanomaterials have been designed and generated. Among them, hybrid organic–inorganic nanoparticles as a particular immobilizing carrier of the catalyst active sites have shown an important contribution in the current research studies. This is due to the large area and loads of active sites. This prominent review is focused on the novel various exa about the immobilization of nanoparticles with organic compounds as versatile and efficient catalysts in organic syntheses.

CuSO4 nanoparticles loaded on carboxymethylcellulose/polyaniline composites: A highly efficient catalyst with enhanced catalytic activity in the synthesis of propargylamines, benzofurans, and 1,2,3‐triazoles

“…Thermogravimetric analysis (TGA) and derivative thermogravimetric analysis (DTG) were performed on a Netzsch STA449 under a nitrogen atmosphere from 30 C to 800 C in a 50 mlÁmin À1 N 2 flow and a ramp rate of 10 CÁmin À1 . 1 H NMR (300 MHz) and 13 C NMR (75 MHz) spectra were obtained with a Bruker Avance instrument with CDCl 3 as solvent and TMS as internal standard. HRMS was determined by using Agilent 6545 Q-TOF MS.…”

“…With the development of modern nanoscience, nanoscale transition metal catalysts have attracted great attention in scientific research and extensively used in organic catalysis. [1][2][3] However, bare metal nanoparticles are easily aggregated during the catalysis process, thereby lowering their catalytic performance and practical application. [4,5] Thus, heterogenization of metal nanoparticles on a desired supportive material has been regarded as an efficient approach to increase the stability of metal nanoparticles, which is conducive to the advantageous of maintenance of catalytic activity, simple operation, convenient recovery and recycling of catalyst, easy separation of product, and cost reduction.…”

Recent developments of supported and magnetic nanocatalysts for organic transformations: an up-to-date review

“…The continuous advancements in chemical transformation in recent decades have contributed vastly to chemical processing efficiencies using cost-effective precursors and catalysts to contribute some aspects of greenness (Varma 2016). In this regard, catalyst plays a central role where various chemical industries transform organic substrates into useful fine chemicals, pharmaceutical drugs, agrochemicals, cosmetics, and more (Amirmahani et al 2020;Gao et al 2021). Importantly, the continuous growth of nanotechnology has paramount importance in improving efficiency as the size of the catalytic particle plays a strong influence on the activity of the heterogeneous and homogeneous catalysis routes.…”

Preparation of CoFe2O4@Carboxymethylcellulose/HZSM-5 as a Novel Nano Magnetic Adsorbent for Metronidazole Removal: Isotherm, Kinetic and Thermodynamic Study

“…To solve this problem, magnetic nanoadsorbents are used. One of the most widely used adsorbents is magnetic nanocomposites [25][26][27]. Magnetic nanocomposites due to their good magnetic property, high area surface and adsorption capacity have attracted the many researchers attention.…”