Scale-up of cluster beam deposition to the gram scale with the matrix assembly cluster source for heterogeneous catalysis (propylene combustion)
Scale-up of cluster beam deposition to the gram scale with the matrix assembly cluster source for heterogeneous catalysis (propylene combustion)
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DOI：
10.1063/1.5142836
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发表时间：
2020-02
期刊：
影响因子：
1.6
通讯作者：
R. Cai;Lu Cao;Ross Griffin;Sarayute Chansai;C. Hardacre;R. Palmer
中科院分区：
文献类型：
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作者：
R. Cai;Lu Cao;Ross Griffin;Sarayute Chansai;C. Hardacre;R. Palmer
簇束沉积是一种制备纳米粒子薄膜的无溶剂方法，一个明显的应用是多相催化。为了解决团簇沉积速率低的问题，最近发明了一种新型团簇束源——“矩阵组装团簇源”。在原理研究证明之后，我们在这里展示了进一步扩大 2 个数量级，相当于每小时生产约 10 毫克簇 (Au100)。这使得可以制备克级的簇装饰粉末催化剂，足以在研究水平上进行新型材料的实际催化研究，正如丙烯的催化燃烧所证明的那样。
Cluster beam deposition is a solvent-free method to prepare films of nanoparticles, one obvious application being heterogeneous catalysis. To address the problem of low cluster deposition rates, a novel cluster beam source, the “Matrix Assembly Cluster Source” was invented recently. Following the proof of principle studies, here, we demonstrate a further scale-up by 2 orders of magnitude, equivalent to reaching a production of ∼10 mg of clusters (Au100) per hour. This allows the preparation of cluster-decorated powder catalysts at the gram scale, comfortably sufficient for practical catalysis studies of novel materials at the research level, as demonstrated here by the catalytic combustion of propylene.