The fullerene compound CoC 60(OH) has been prepared by the reaction of C - 60 anion with Co(Ⅱ) hydrous salt under nitrogen atmosphere and refluxing, and the title compound is characterized by FAB-MS, elemental analys...The fullerene compound CoC 60(OH) has been prepared by the reaction of C - 60 anion with Co(Ⅱ) hydrous salt under nitrogen atmosphere and refluxing, and the title compound is characterized by FAB-MS, elemental analysis, FT-IR, XPS, UV-Vis and 1H NMR. The results prove the presence of C-Co and -OH groups in the resultant, and coovalent of Co bonding to C 60. The apparent charge distribution of the resultant appeaers to be Co 2+C - 60(OH) -, and there are three kinds of carbons with different electron density. The result of redox experiment indicates that the reduction potential of the compound is more negative than that of pure C 60.展开更多
Acidic and redox properties are two important aspects of metal oxide catalysts for selective oxidation reactions. Various methods have been used to characterize these properties, of which the isopropanol conversion is...Acidic and redox properties are two important aspects of metal oxide catalysts for selective oxidation reactions. Various methods have been used to characterize these properties, of which the isopropanol conversion is a useful probe reaction that can give qualitative information. It is well known that acidicsites catalyze the dehydration of isopropanol to propylene and basic sites catalyze the dehydrogenation of isopropanol to acetone.展开更多
文摘The fullerene compound CoC 60(OH) has been prepared by the reaction of C - 60 anion with Co(Ⅱ) hydrous salt under nitrogen atmosphere and refluxing, and the title compound is characterized by FAB-MS, elemental analysis, FT-IR, XPS, UV-Vis and 1H NMR. The results prove the presence of C-Co and -OH groups in the resultant, and coovalent of Co bonding to C 60. The apparent charge distribution of the resultant appeaers to be Co 2+C - 60(OH) -, and there are three kinds of carbons with different electron density. The result of redox experiment indicates that the reduction potential of the compound is more negative than that of pure C 60.
基金supported by the National Basic Research Program of China (973 Program 2010CB732300)+6 种基金the National Natural Science Foundation of China (21101063 21273071)Science and Technology Commission of Shanghai (13520711400 13JC1401902 10dz2220500)the Fundamental Research Funds for the Central UniversitiesChina~~
文摘Acidic and redox properties are two important aspects of metal oxide catalysts for selective oxidation reactions. Various methods have been used to characterize these properties, of which the isopropanol conversion is a useful probe reaction that can give qualitative information. It is well known that acidicsites catalyze the dehydration of isopropanol to propylene and basic sites catalyze the dehydrogenation of isopropanol to acetone.
