在SiO₂上由孤立的Ti表面位点促进的负载型Cu纳米颗粒上CO选择性加氢制CH₃OH
Selective Hydrogenation of CO to CH OH on Supported Cu Nanoparticles Promoted by Isolated Ti Surface Sites on SiO.
作者信息
Noh Gina, Lam Erwin, Alfke Jan Lucas, Larmier Kim, Searles Keith, Wolf Patrick, Copéret Christophe
机构信息
Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland.
Current address: IFP Energies nouvelles, Rond-Point de l'échangeur de Solaize, BP3, 69360, Solaize, France.
出版信息
ChemSusChem. 2019 Mar 7;12(5):968-972. doi: 10.1002/cssc.201900134. Epub 2019 Feb 7.
Small and narrowly distributed Cu nanoparticles, supported on SiO decorated with isolated Ti sites, prepared through surface organometallic chemistry, showed significantly improved CO hydrogenation activity and CH OH selectivity compared to the corresponding Cu nanoparticles supported on SiO . These isolated Lewis acid Ti sites, evidenced by UV/Vis spectroscopy, are proposed to stabilize surface intermediates at the interface between Cu nanoparticles and the support.
通过表面有机金属化学制备的、负载在具有孤立钛位点修饰的SiO上的小尺寸且分布狭窄的铜纳米颗粒，与负载在SiO上的相应铜纳米颗粒相比，表现出显著提高的CO加氢活性和CH OH选择性。通过紫外可见光谱证实的这些孤立的路易斯酸钛位点，被认为可稳定铜纳米颗粒与载体界面处的表面中间体。
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