Pt@Sn核壳结构的肉桂醛选择性加氢
首发时间:2023-05-12
摘要:本文首先采用溶液相法合成了Pt纳米粒子,再通过种子介导的方法在Pt纳米粒子表面沉积不同厚度的Sn外壳。将合成的Pt@Sn核壳纳米颗粒催化剂用于热催化肉桂醛加氢,结果发现Sn的引入极大地提高了产物肉桂醇(COL)的选择性。当引入的Sn厚度适中时(2.57 nm),Pt@Sn发挥了最优的协同效应, 肉桂醛(CAL)的转化率为95.4%,肉桂醇(COL)的选择性可达66.6%。
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Selective cinnamaldehyde hydrogenation over Pt@Sn core/shell nanoparticles
Abstract:In this paper, Pt nanoparticles were first synthesized by a solution-phase method, and then Sn shells with different thicknesses were deposited on the surface of Pt nanoparticles by a seed-mediated method. The Pt@Sn core-shell nanoparticles catalyst was used for thermocatalytic hydrogenation of cinnamaldehyde, and it was found that the introduction of Sn greatly enhanced the selectivity to the product cinnamyl alcohol (COL). When the Sn thickness is the moderate (2.57 nm), the synergistic effect between Pt and Sn was optimized. The conversion rate of cinnamaldehyde (CAL) is 95.4%,and the selectivity of cinnamyl alcohol (COL) reaches 66.6%.
Keywords: Thermocatalytic cinnamaldehyde,Pt,Sn, synergistic effect
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Pt@Sn核壳结构的肉桂醛选择性加氢
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