硝基苯
催化作用
苯胺
纤维素
吸附
选择性
化学
化学工程
钯
嫁接
表面改性
接触角
材料科学
高分子化学
有机化学
聚合物
物理化学
工程类
作者
Dandan Li,Guo‐ping Lu,Chun Cai
标识
DOI:10.1016/j.catcom.2020.105949
摘要
Cellulose with tailorable hydrophilicity/hydrophobicity were synthesized by grafting F-containing groups and utilized as supports for palladium nanoparticles. The obtained catalysts were applied in the synthesis of N-phenylhydroxylamine from controllable reduction of nitrobenzene. Unexpectedly high conversion and selectivity could be achieved with 25 ppm Pd catalyst at room temperature in water. The precise modification of the catalyst surface is crucial to realize this targeted transformation. Further investigation indicated that modified cellulose with a more hydrophobic surface would favour the adsorption of nitrobenzene over N-phenylhydroxylamine thus prevent full hydrogenation to aniline.
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