Aliphatic amines modified CoO nanoparticles for catalytic oxidation of aromatic hydrocarbon with molecular oxygen
Aliphatic amines modified CoO nanoparticles for catalytic oxidation of aromatic hydrocarbon with molecular oxygen
复制标题
脂肪胺修饰 CoO 纳米粒子用于分子氧催化氧化芳香烃
DOI：
10.1016/s1872-2067(19)63413-3
复制
发表时间：
2019-10-01
影响因子：
16.5
通讯作者：
Xu, Jie
中科院分区：
文献类型：
--
作者：
Liu, Meng;Shi, Song;Xu, Jie
利用有机改性剂对金属氧化物进行表面改性是提高其催化性能的一种潜在策略。在这项研究中，疏水表面胺改性的CoO催化剂的水接触角为143。采用XRD、TGA、FT-IR、HR-TEM、XPS等手段对催化剂进行了表征。结果表明，制备的催化剂在芳烃氧化反应中的性能优于亲水性商品CoO纳米粒子。在胺改性之后，商业CoO也变得疏水，并且实现了改进的转化率。胺对CoO的表面改性使CoO具有疏水性，可为其他疏水催化剂的设计提供参考。(C)2019年，中科院大连化学物理研究所。Elsevier B. V.出版，保留所有权利。
The surface modification of metal oxides using organic modifiers is a potential strategy for enhancing their catalytic performances. In this study, a hydrophobic surface amine-modified CoO catalyst with a water contact angle of 143 was fabricated. The catalyst was characterized by XRD, TGA, FT-IR, HR-TEM, and XPS. The results showed that the fabricated catalyst performed better than the hydrophilic commercial CoO nanoparticle in the process of aromatic hydrocarbon oxidation. After the amines modification, commercial CoO also became hydrophobic and improved conversion of ethylbenzene was achieved. The surface modification of CoO with amines induced the hydrophobicity property, which could serve as a reference for the design of other hydrophobic catalysts. (C) 2019, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.