Solvent Acting as a Precursor: Synthesis ofAgCNFromAgNO₃inN,N‐DMFSolvent by Laser Ablation

Abstract

Silver cyanide (AgCN) micro‐rods were easily and environmental friendly produced via a pulsed laser ablation to a AgNO3 solution, where N,N‐dimethylformamide (N,N‐DMF) was used as a solvent and a precursor of the cyanide (CN −) ions, as well. Ablating with an intense laser to N,N‐DMF in the presence of AgNO3 produces the cyanide ions, which recombine to the dissolved Ag+ ions, producing AgCN nanoparticles and eventually forming AgCN micro‐rods.

Role of Synthetic Plant Extracts on the Production of Silver-Derived Nanoparticles

“…The transformation of silver nanoparticles depending on the environmental conditions is a common phenomenon [ 47 ]. Thus, the chemical transformation of silver nanoparticles to AgCN would cause these changes in the size and shape of the nanoparticles and thus change from spherical micelle-like formation to rod-like [ 48 ].…”

“…The transformation of silver nanoparticles depending on the environmental conditions is a common phenomenon [ 47 ]. Again, changes in the size and shape of the nanoparticles from spherical to rod-like form can be observed as a result of the chemical transformation of silver nanoparticles to AgCN [ 48 ].…”

Silver Cyanide Powder‐Catalyzed Selective Epoxidation of Cyclohexene and Styrene with its Surface Activation by H2O2(aq) and Assisted by CH3CN as a Non‐Innocent Solvent

“…The solid particles were collected and subjected to a scanning electron microscope (SEM) study. [18] The results revealed that the Ag materials during the reactions consist of NPs with 10-300 nm in sizes (Figures 2(a) and (b)). Silver contents in the catalysts before and after reactions were identified by inductively coupled plasma-atomic emission spectroscopy (ICP-AES) to be 79.0 � 2.4 % (n = 2) and 78.1 � 1.9 % (n = 3), respectively.…”

“…The mechanistic insights revealed that more than 56-70 % of the cyclohexene oxide formation does not directly mediate from peroxycarboimidic acid intermediate 1 (Route 2, Scheme 1). The highly 18 O enriched acetamide obtained using H 2 18 O 2 as an oxidant (vide infra) and only negligible cyclohexene oxide and acetamide formation without the presence of AgCN catalyst implicate that the intermediate 1 also exhibits the role to be activated from the AgCN surface for its OAT to cyclohexene oxide formation (Route 2, Scheme 2, vide infra).…”

“…Finally, the Fourier-transform infrared (FTIR) spectra of the recycled Ag materials showed an intense C�N stretch at ~2138 cm À 1 , consistent with the reported data (Figure S6, SI † ). [18,20] To further characterize these materials, we conducted 13 C solid-state nuclear magnetic resonance (SS NMR) experiment on three different catalyst materials, including commercial AgCN powder, AgCN powder mixed with acetamide and the Ag NPs collected after catalytic reaction (see Figure 5). ).…”