A nickel nanoparticle engineered CoFe<sub>2</sub>O<sub>4</sub>/SiO<sub>2</sub>–NH<sub>2</sub>@carboxamide composite as a novel scaffold for the oxidation of sulfides and oxidative coupling of thiols
作者:Mina Zohrevandi、Roya Mozafari、Mohammad Ghadermazi
DOI:10.1039/d1ra01592c
日期:——
particles on the surface. This compound was appropriately characterized using FT-IR spectroscopy, FE-SEM, ICP-OES, EDX, XRD, TGA analysis, VSM, and X-ray atomic mapping. The catalytic oxidation of sulfides and oxidative coupling of thiols in the presence of the designed catalyst was explored as a highly selective catalyst using hydrogen peroxide (H2O2) as a green oxidant. The easy separation, simple workup
这项工作的目的是制备一种负载在CoFe 2 O 4纳米颗粒上的新型Ni-羧酰胺络合物(CoFe 2 O 4 /SiO 2 –NH 2 @carboxamide-Ni)。甲酰胺主体材料单元产生的空腔可以有效稳定镍纳米颗粒,并防止这些颗粒在表面聚集和分离。使用 FT-IR 光谱、FE-SEM、ICP-OES、EDX、XRD、TGA 分析、VSM 和 X 射线原子图谱对该化合物进行了适当表征。使用过氧化氢(H 2 O 2 )作为绿色氧化剂,探索了在设计的催化剂存在下硫化物的催化氧化和硫醇的氧化偶联作为高选择性催化剂。该方案的一些突出优点是分离容易、后处理简单、纳米催化剂优异的稳定性、反应时间短、材料非爆炸性以及适当的产物收率。