The chemoselective hydrogenation of α,β-unsaturated aldehydes is a key strategy for the synthesis of fine chemicals. Herein, we developed an efficient method of depositing Pt particles on FeO_x/SBA-15. This strategy is dependent on using a platinum-divinyltetramethyldisiloxane complex (Pt⁰-DVTMS) as the precursor, which we demonstrate can be removed through a H₂-treatment under mild conditions. This, in turn, allowed for the synthesis of catalysts with well dispersed Pt particles. The presence of FeO_x species also aided Pt dispersion; when coated onto SBA-15, FeO_x strongly interacted with dissociated Pt species, inhibiting both Pt aggregation and metal leaching. Using cinnamaldehyde as a model α,β-unsaturated aldehyde, it was demonstrated that this catalyst was highly selective towards the unsaturated alcohol and no obvious loss in activity was observed over five recycles. This catalyst was determined to be significantly more effective than an analogous catalyst prepared using chloroplatinic acid as a precursor, evidencing the importance of using the Pt⁰-DVTMS precursor. We corroborate the excellent catalytic performance to highly dispersed Pt-species, whereby Pt⁰ and Pt²⁺ play a critical role in activating H₂ and the C=O bond. This research demonstrates that the Pt precursor can have a significant impact on the physicochemical properties and thus, the performance of the final catalyst. It also evidences how metal support interactions can dramatically influence selectivity in such hydrogenation reactions. This novel catalyst preparation protocol, using a DVTMS ligand for Pt impregnation, offers a facile approach to the design of multi-component heterogeneous catalysts.

α,β-不饱和醛的化学选择性加氢是合成精细化学品的关键策略。_{在此，我们开发了一种在 FeO x} /SBA-15上沉积 Pt 颗粒的有效方法。该策略依赖于使用铂-二乙烯基四甲基二硅氧烷络合物（Pt ⁰ -DVTMS）作为前体，我们证明可以在温和条件下通过H _{2处理将其去除。}这反过来又允许合成具有良好分散的 Pt 颗粒的催化剂。FeO _x物种的存在也有助于 Pt 分散；当涂在 SBA-15 上时，FeO _x与解离的 Pt 物种强烈相互作用，抑制 Pt 聚集和金属浸出。使用肉桂醛作为模型 α,β-不饱和醛，证明该催化剂对不饱和醇具有高度选择性，并且在 5 次循环中没有观察到明显的活性损失。该催化剂被确定为比使用氯铂酸作为前体制备的类似催化剂显着更有效，证明了使用Pt ⁰ -DVTMS前体的重要性。我们证实了对高度分散的 Pt 物种的优异催化性能，其中 Pt ⁰和 Pt ^{2+在活化 H} ₂中起关键作用和C = O键。这项研究表明，Pt 前体可以对物理化学性质产生重大影响，从而对最终催化剂的性能产生重大影响。它还证明了金属载体相互作用如何显着影响这种氢化反应的选择性。这种使用 DVTMS 配体进行 Pt 浸渍的新型催化剂制备方案为多组分多相催化剂的设计提供了一种简便的方法。