Z. Weng等人在Pt/Al₂O₃催化剂上通过ALD沉积亚单层的SiO₂，6次ALD后通过红外测得的Pt的暴露度仅降低1/3，但是该方法调节了表面的酸碱性位点。虽然该方法使得催化肉桂醛的活性稍微下降，但是生成肉桂醇的选择性得到了大幅提升。作者认为Pt周围Si-O-Al界面处的强Brønsted酸性位点的构筑是其选择性提升的原因。

Zhihuan Weng and Francisco Zaera* Sub-Monolayer Control of Mixed-Oxide Support Composition in Catalysts via Atomic Layer Deposition: Selective Hydrogenation of Cinnamaldehyde Promoted by (SiO₂-ALD)-Pt/Al₂O₃

ACS Catal., 2018, 8, pp 8513–8524 DOI: 10.1021/acscatal.8b02431

https://pubs.acs.org/doi/10.1021/acscatal.8b02431