采用化学气相渗透法（CVI）制备用于 CO 加氢制甲醇的 PdZn 催化剂。
PdZn catalysts for CO hydrogenation to methanol using chemical vapour impregnation (CVI).
机构信息
Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, CF10 3AT Cardiff, UK.
出版信息
Faraday Discuss. 2017 Apr 28;197:309-324. doi: 10.1039/c6fd00189k.
The formation of PdZn bimetallic alloys on ZnO, TiO and AlO supports was investigated, together with the effect of alloy formation on the CO hydrogenation reaction. The chemical vapour impregnation (CVI) method produced PdZn nanoparticles with diameters of 3-6 nm. X-ray photoelectron spectroscopy and X-ray diffraction revealed the changes in the structure of the PdZn alloy that help stabilise formate intermediates during methanol synthesis. PdZn supported on TiO exhibits high methanol productivity of 1730 mmol kg h that is associated with the high dispersion of the supported PdZn alloy.
研究了 ZnO、TiO 和 AlO 载体上 PdZn 双金属合金的形成，以及合金形成对 CO 加氢反应的影响。化学气相浸渍（CVI）法制备了直径为 3-6nm 的 PdZn 纳米颗粒。X 射线光电子能谱和 X 射线衍射揭示了 PdZn 合金结构的变化，有助于在甲醇合成过程中稳定甲酸盐中间体。负载在 TiO 上的 PdZn 表现出高的甲醇产率 1730mmolkg h，这与负载的 PdZn 合金的高分散性有关。
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