Sword-like CuO/CeO(2) composites derived from a Ce-BTC metal-organic framework with superior CO oxidation performance.

Sword-like CuO/CeO(2) composites derived from a Ce-BTC metal-organic framework with superior CO oxidation performance.
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由 Ce-BTC 金属有机骨架衍生的剑状 CuO/CeO2 复合材料,具有优异的 CO 氧化性能

DOI:
10.1039/c8ra07531j
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发表时间:
2018-09-24
期刊:
影响因子:
3.9
通讯作者:
Zhang, Xiaodong
Zhang, Xiaodong
中科院分区:
化学3区
文献类型:
--
作者:
Wang, Yin;Yang, Yiqiang;Liu, Ning;Wang, Yuxin;Zhang, Xiaodong

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基于金属有机骨架的多孔形状可控金属氧化物复合材料因其广泛的应用而受到越来越多的关注。本文采用秸秆状ce基金属有机骨架(Ce-BTC)作为自牺牲模板,在500℃下煅烧,成功合成了剑状CuO/CeO2复合材料。此外,剑状CuO/CeO2复合材料表现出优异的CO氧化催化性能,这是由于其界面接触良好,表面铜在低温下易于还原,表面晶格氧丰富,Cu+和氧空位较多。基于金属有机骨架的多孔形状可控金属氧化物复合材料因其广泛的应用而受到越来越多的关注。
Porous shape-controllable metal oxide composites derived from a metal–organic framework have gained more and more attention due to their extensive applications. In this paper, sword-like CuO/CeO2 composites were successfully synthesized by calcination of a strawsheave-like Ce-based metal–organic framework (Ce-BTC) containing suitable Cu loading as self-sacrificial templates at 500 °C. Moreover, sword-like CuO/CeO2 composites displayed superior catalytic performance for CO oxidation, which was ascribed to a good interfacial contact, easily reducible surface copper species at low temperature and abundant surface lattice oxygen species, more Cu+ and oxygen vacancies. Porous shape-controllable metal oxide composites derived from a metal–organic framework have gained more and more attention due to their extensive applications.
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