Microwave direct denitration for synthesis of Cu-Ce-Zr-O composite oxide and its characterization
Microwave direct denitration for synthesis of Cu-Ce-Zr-O composite oxide and its characterization
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DOI：
10.1016/j.powtec.2019.11.086
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发表时间：
2020-02
影响因子：
5.2
通讯作者：
Tomonori Fukasawa;Rikuto Nakamura;T. Ishigami;K. Fukui
中科院分区：
文献类型：
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作者：
Tomonori Fukasawa;Rikuto Nakamura;T. Ishigami;K. Fukui
采用微波直接脱硝法（MDD）和柠檬酸法（CA）合成了Cu-Ce-Zr-O复合氧化物，柠檬酸法为实验对照。x射线衍射分析证实，MDD有利于形成高度均匀的Cu-Ce-Zr-O复合氧化物。MDD产物的比表面积和氧释放率分别是CA产物的2.2 ~ 2.4倍和1.4 ~ 1.7倍，而前者的储氧能力略低于后者。因此，MDD虽然缩短了合成时间，简化了合成过程，但并没有显著提高催化性能。
A Cu-Ce-Zr-O composite oxide was synthesized by microwave direct denitration (MDD) and citric acid (CA) methods, with the latter used as an experimental control. X-ray diffraction analysis confirmed that MDD facilitated the formation of a highly homogeneous Cu-Ce-Zr-O composite oxide. The specific surface area and oxygen release rate of the MDD product were 2.2–2.4 and 1.4–1.7 times larger than those of the CA product, respectively, whereas the oxygen storage capacity of the former product was slightly lower than that of the latter. Consequently, it was concluded that MDD did not significantly improve catalytic performance, although it reduced synthesis time and simplified the synthesis process.