文献类型：期刊文献

英文题名：Catalytic N2O Decomposition over Cu/Mn/Zn Doped Ceo2 Composite Oxides

作者：Zhang, Yuanyang[1]; Guo, Yaqiong[1]; Li, Na[1]; Feng, Yaoyu[1]

机构：[1] School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2019

卷号：281

期号：1

外文期刊名：IOP Conference Series: Earth and Environmental Science

收录：EI(收录号：20192707132268)

语种：英文

外文关键词：Molar ratio - Cerium oxide - Copper oxides

摘要：Cu/Mn/Zn oxides were firstly prepared by coprecipitation with molar ratio of Cu/Zn, 0.17, and Mn/(Cu+Zn) by 0.0～0.06, respectively. The temperature of N2O conversion ca. 10% over Cu/Zn and Cu/Mn0.03/Zn was 370°C and 325°C, respectively, by using 6.8(v)% N2O+balanced N2, and GHSV of 30000h-1, indicating the addition of manganese oxide could improve Cu/Zn oxide activity on N2O decomposition. The Cu/Mn/Zn doped CeO2 composite oxides were further prepared with molar ratio of Ce/Cu by 0.0～1.4. The temperature of N2O conversion ca. 10% over Ce1.0/Cu/Mn0.03/Zn was 260°C as same conditions applied over Cu/Zn and Cu/Mn0.03/Zn samples. Stability test by using simulated mixture, 6.8(v)% N2O+5.0(v)% O2+3.0(v)% H2O+balanced N2, 580°C, GHSV of 30000h-1, showed that N2O conversion remained stable. Characterization demonstrated that the synergistic action of active components was the main origin of Ce1.0/Cu/Mn0.03/Zn sample had good performance on N2O abatement. ? Published under licence by IOP Publishing Ltd.