硼氢化钠
钯
催化作用
热重分析
材料科学
傅里叶变换红外光谱
感应耦合等离子体
等离子体原子发射光谱
核化学
化学工程
纳米颗粒
扫描电子显微镜
纳米晶
光谱学
红外光谱学
粉末衍射
无机化学
化学
纳米技术
有机化学
结晶学
复合材料
量子力学
等离子体
工程类
物理
作者
Kazem Karami,Hossein Saadatzadeh,Azar Ramezanpour
标识
DOI:10.1002/slct.202003844
摘要
Abstract Throughout the present research, cellulose nanocrystals (CNCs) have been modified with 3‐aminopropyltriethoxysilane (APTES) and also they have been exploited as the support for palladium nanoparticles (Pd NPs) using palladium complex. Moreover, Fourier Transform Infrared Spectroscopy(FT‐IR), Powder X‐ray Diffraction(PXRD), Field Emission Scanning Electron Microscopy(FE‐SEM), Energy Dispersive X‐ray Spectroscopy(EDS), Transmission Electron Microscopy(TEM), Inductively Coupled Plasma Optical Emission Spectroscopy(ICP‐OES) and Thermal gravimetric Analysis(TGA) were employed to characterize the Pd@CNC‐APTES nanocatalyst. The catalytic activity of the nanocatalyst has been investigated in the reduction of p ‐Nitrophenol( p ‐NP) and the other nitroaromatic compounds to the corresponding amine. Furthermore, the catalyst could be recycled four times without the considerable loss of Pd content and with a high level of p ‐NP conversion. Using experimental results, thermodynamic parameters were calculated by Arrhenius and Eyring equations. The findings revealed the significant catalytic activity of Pd@CNC‐APTES nanocatalyst for the reduction of p ‐NP and its derivatives by sodium borohydride(NaBH 4 ) at room temperature.
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