A single‐step deposition of cobalt‐doped zinc oxide (Co‐ZnO) thin film nano‐composites on three different crystalline substrates, viz., Al₂O₃ (c‐sapphire), silicon (100) (Si), and SiO₂ (quartz) is reported, using pulsed electron beam ablation (PEBA). The results indicate that the type of substrate has no effect on Co‐ZnO films stoichiometry, morphology, microstructure, and film thickness. The findings show the presence of hexagonal close‐packed metallic Co whose content increases in the films deposited on Al₂O₃ and Si substrates relatively to SiO₂ substrate. The potential of the films as model nano‐catalysts has been evaluated in the context of the Fischer‐Tropsch (FT) process. Fuel fractions, which have been observed in FT liquid products, are rich in diesel and waxes. Specifically, Co‐ZnO/Al₂O₃ nano‐catalyst shows a selectivity of ∼4%, 31%, and 65% towards gasoline, diesel, and waxes, respectively, while Co‐ZnO/SiO₂ nano‐catalyst shows a selectivity of ∼12%, 51%, and 37%, for gasoline, diesel, and waxes, respectively. © 2018 American Institute of Chemical Engineers AIChE J, 64: 3332–3340, 2018

中文翻译：

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脉冲电子束烧蚀生长的共掺杂ZnO薄膜作为费-托合成中的模型纳米催化剂

在三种不同的晶体衬底上进行钴掺杂的氧化锌（Co-ZnO）薄膜纳米复合材料的单步沉积，即Al ₂ O ₃（c-蓝宝石），硅（100）（Si）和SiO使用脉冲电子束烧蚀（PEBA）报告了₂（石英）。结果表明，基材的类型对Co-ZnO薄膜的化学计量，形态，微观结构和薄膜厚度没有影响。研究结果表明，六角形密排金属Co的存在相对于SiO ₂而言，其沉积在Al ₂ O ₃和Si衬底上的膜中的含量增加基质。在费-托（FT）过程的背景下，已经评估了膜作为模型纳米催化剂的潜力。在FT液体产品中观察到的燃料馏分富含柴油和蜡。具体而言，Co-ZnO / Al ₂ O ₃纳米催化剂对汽油，柴油和蜡的选择性分别为〜4％，31％和65％，而Co-ZnO / SiO ₂纳米催化剂则显示出选择性。汽油，柴油和蜡分别为约12％，51％和37％。©2018美国化学工程师学会AIChE J，64：3332–3340，2018