| 6 | Effect of CuO species and oxygen vacancies over CuO/CeO_(2)catalysts on low-temperature oxidation of ethyl acetate显示文摘The catalytic oxidation of ethyl acetate(EA)was studied over CuO/CeO_(2) catalysts which were prepared by ball milling with different precursors(copper oxide,cerium acetate,cerium dioxide,copper acetate and cerium hydroxide).The CuO/CeO_(2) catalyst(O-A)prepared with copper oxide and cerium acetate as precursors shows very high catalytic activity that 100%EA conversion is achieved at low temperature of 220℃.It is found that specific surface area(112.8 m^(2)/g),particle size of CuO(3.5 nm)and proportion of oxygen vacancies are prominent on the O-A catalyst.Oxygen vacancies in CeO_(2)support are beneficial to enhancing the adsorption and activation of the oxygen.More finely dispersed CuO particles and oxygen vacancies which are derived from the synergistic interaction of Cu-Ce species play an important role in the catalytic oxidation of EA. | Yuchuan Ye Liangjun Gao Jing Xu Luhui Wang Liuye Mo Xiaodong Zhang | 2023 | Journal of Rare Earths2023，41，6： | 0 |
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