源自Ce-BTC金属有机框架的剑状CuO/CeO复合材料具有优异的CO氧化性能。

Wang Yin, Yang Yiqiang, Liu Ning, Wang Yuxin, Zhang Xiaodong

School of Environment and Architecture, University of Shanghai for Science and Technology Shanghai 200093 China

Institute of Applied Biotechnology, Taizhou Vocation & Technical College Taizhou Zhejiang 318000 China.

RSC Adv. 2018 Sep 25;8(58):33096-33102. doi: 10.1039/c8ra07531j. eCollection 2018 Sep 24.

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/CeO 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/CeO 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.

源自金属有机框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越来越受到关注。本文通过在500℃下煅烧含有适量铜负载量的稻草束状铈基金属有机框架（Ce-BTC）作为自牺牲模板，成功合成了剑状CuO/CeO复合材料。此外，剑状CuO/CeO复合材料对CO氧化表现出优异的催化性能，这归因于良好的界面接触、低温下易于还原的表面铜物种、丰富的表面晶格氧物种、更多的铜和氧空位。