Silver Nanoparticles Supported on Mesoporous Triazine Carbon Material: A Versatile Catalyst for Reduction of Nitroaromatic Compounds

Abstract

In this study, a new precursor was synthesized form the reaction of melamine and chloroacetonitrile. By using this pre‐material, the new mesoporous triazine based‐carbon material was prepared during ionothermal process with the help of ZnCl2, and used as the excellent support for silver nano‐particles. The new nano‐catalyst was named Ag/mCTF(mesoporous Carbon Triazine Framework), and fully characterized by various analytical methods including Fourier transformed infrared spectroscopy (FT‐IR), field emission scanning electron microscopy (FE‐SEM), energy‐dispersive X‐ray spectroscopy (EDX), X‐ray diffraction (XRD) and thermogravimetric analysis (TGA). The catalyst ability of Ag/mCTF was survived in the reduction reaction of nitroaromatic compounds. The results show that this new catalyst produced anilines in good yields in benign condition. The other merit of this heterogeneous catalyst was high recyclability without significant decrease in its performance.

Ionothermal synthesis of magnetic N-doped porous carbon to immobilize Pd nanoparticles as an efficient nanocatalyst for the reduction of nitroaromatic compounds

“… Entry Catalyst (mg) Reaction condition Time/h Conv. (%) [ref] 1 Pd/ox-CEINs (50) EtOH, HCOONH 4 , 70 °C 1 97 58 2 SiO 2 @APTES@β-CD@Pd-PDR (20) H 2 O, NaBH 4 , rt 3 93 59 3 Pd@NH 2 -HMONs (10) EtOH, H 2 , 25 °C 1 100 60 4 Fe 3 O 4 @SiO 2 /Schiff base/Pd(II) (20) EtOH, hydrazine hydrate, reflux 1.5 90 61 5 RGO–Ni (10) NaBH 4 , H 2 O, 30 °C 3:10 93 62 6 GO–Chit–Pd (3) NaBH 4 , H 2 O, 50 °C 20 min 92 63 7 Pd/B-CP-HIm (30) EtOH/H 2 O, H 2 , 50 °C 1.5 100 64 8 Pd/CNT-P (10) EtOH/H 2 O, H 2 , 40 °C 2 95 17 9 Pd/Fe 3 O 4 ...…”

Selenium and nitrogen co‐doped porous carbon immobilized Ag nanoparticles: A practical heterogeneous nanocatalyst for hydrogenation of nitroaromatics

“…Particularly, doping carbon with two or several heteroatoms can further improve the catalytic performance in different organic and electrochemical reactions due to the synergistic effects between various heteroatoms and metal NPs and can significantly inhibit the agglomeration, leaching, and corrosion of metal NPs. [36][37][38] In continuation of our studies on the development of heteroatom-doped carbon materials and their application as supports or heterogeneous catalysts, [39][40][41][42][43][44][45] in this paper, we report the preparation of Ag NPs decorated on selenium and nitrogen co-doped mesoporous carbon (Ag/m-SeNC) by pyrolyzing cheap raw materials of glucose, ammonium chloride (NH 4 Cl), and selenium dioxide (SeO 2 ) as the carbon, nitrogen, and selenium sources and AgNO 3 as a metal precursor. The resultant Se,N-carbon was used as a support for the immobilization of Ag NPs to fabricate a stable nanocatalyst Ag/m-SeNC.…”

“…In continuation of our studies on the development of heteroatom‐doped carbon materials and their application as supports or heterogeneous catalysts, [ 39–45 ] in this paper, we report the preparation of Ag NPs decorated on selenium and nitrogen co‐doped mesoporous carbon (Ag/m‐SeNC) by pyrolyzing cheap raw materials of glucose, ammonium chloride (NH 4 Cl), and selenium dioxide (SeO 2 ) as the carbon, nitrogen, and selenium sources and AgNO 3 as a metal precursor. The resultant Se,N‐carbon was used as a support for the immobilization of Ag NPs to fabricate a stable nanocatalyst Ag/m‐SeNC.…”

SYNTHESIS AND CHARACTERIZATION OF Mn+2 , Co+2 , Ni+2 , Cu+2 AND Zn+2 COMPLEXES WITH 4-(2-(BENZO-1,3-DIOXOL-5-YL)-4,5-DIPHENYL-2,5- DIHYDRO-1H-IMIDAZOL-1-YL)ANILINE AND EVALUATION OF THEIR BIOLOGICAL ACTIVITY

“…In addition, they are used in the manufacture of electrical circuits [18] and also as an anti-corrosion coating for copper [19]. Imidazole substitutes have recently been used as secondary catalysts in the chemical industries, especially in organic chemical reactions [20].…”