夏语嫣,吕庆阳,袁华.Co-N-C体系催化α-芳香醇氨氧化直接制备α-芳香腈[J].分子催化编辑部,2021,35(1):48-53
Co-N-C体系催化α-芳香醇氨氧化直接制备α-芳香腈
Co-N-C System Catalyzed the Ammoxidation of α-Aromatic Alcohol to α-Aromatic Nitrile Directly
投稿时间:2020-11-01  修订日期:2020-12-03
DOI:10.16084/j.issn1001-3555.2021.01.006
中文关键词:  Co-N-C  α-芳香醇  α-芳香腈  催化氨氧化
英文关键词:Co-N-C  α-aromatic alcohol  α-aromatic nitrile  catalytic ammoxidation
基金项目:湖北省国家自然科学基金面上项目(No.2016CFA079)资助.
作者单位E-mail
夏语嫣 武汉工程大学 化学与环境工程学院, 湖北 武汉 430205  
吕庆阳 武汉工程大学 化学与环境工程学院, 湖北 武汉 430205  
袁华 武汉工程大学 化学与环境工程学院, 湖北 武汉 430205 yuanhua@wit.edu.cn 
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中文摘要:
      以Co(NO32·6H2O和1-丁基-3-甲基咪唑氢溴酸盐为前驱体,Vulcan XC72R为载体,采用浸渍法制备负载型Co-N-C催化剂,使用XRD、XPS、HRTEM等手段对其结构进行了表征.以α-芳香醇催化氨氧化合成α-芳香腈为考察对象,对其催化性能进行了评价.例如,在O2压力为0.5 MPa,反应温度为120℃,反应时间为20 h的条件下,以Co-N-C/700为催化剂,NH3(aq)为氨源,在催化苯甲醇合成苯甲腈反应中,苯甲醇转化率可达100%,产物苯甲腈选择性为100%.
英文摘要:
      Using Co(NO3)2·6H2O and 1-butyl-3-methylimidazole hydrobromide as precursors, and Vulcan XC72R as the supporter, the supported Co-N-C system was prepared by the impregnation method. Its structure was characterized by X-ray diffraction (XRD), X-ray electron spectroscopy (XPS), and High Resolution Transmission Electron Microscope (HRTEM), etc. The catalytic performance was evaluated by studying the process of its catalytic ammoxidation of α-aromatic alcohol to α-aromatic nitrile. For example, under the conditions of 120 ℃, O2 pressure 0.5 MPa, and reaction time for 20 h, with Co-N-C/700 as the catalyst, NH3(aq) as the ammonia source, in the catalytic reaction of benzyl alcohol to benzonitrile, the conversion of benzyl alcohol can reach 100%, and the selective of the productbenzonitrileis 100%.
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