Highly efficient cerium dioxide nanocube-based catalysts for low temperature diesel soot oxidation: the cooperative effect of cerium- and cobalt-oxides
Highly efficient cerium dioxide nanocube-based catalysts for low temperature diesel soot oxidation: the cooperative effect of cerium- and cobalt-oxides
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DOI：
10.1039/c5cy00525f
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发表时间：
2015-06
影响因子：
5
通讯作者：
Putla Sudarsanam;Brendan Hillary;D. Deepa;M. Amin;Baithy Mallesham;B. M. Reddy;S. Bhargava
中科院分区：
文献类型：
--
作者：
Putla Sudarsanam;Brendan Hillary;D. Deepa;M. Amin;Baithy Mallesham;B. M. Reddy;S. Bhargava
已发现四氧化三钴促进的二氧化铈纳米立方体在低温下（50%的 soot转化率 = 606 K）对柴油 soot的氧化表现出优异的催化活性。这种显著的性能归因于氧化铈优异的可还原性以及二氧化铈（100）面和四氧化三钴（110）面的优先暴露。基于铈氧化物和钴氧化物协同效应的一种可能的机制已被提出，为设计用于催化soot氧化的有前景的材料提供了新的可能性。
注：“soot”在化学领域可能有更专业准确的术语，需根据具体学科背景确定，这里暂保留英文。
Co3O4 promoted CeO2 nanocubes have been found to exhibit outstanding catalytic activity for the oxidation of diesel soot at low temperatures (50% soot conversion = 606 K). This remarkable performance is attributed to the superior reducible nature of cerium oxide and the preferential exposure of CeO2 (100) and Co3O4 (110) facets. A probable mechanism based on the cooperative effect of cerium- and cobalt-oxides has been proposed, offering new possibilities for the design of promising materials for catalytic soot oxidation.