Pt@Sn核殼結構的肉桂醛選擇性加氫
首發時間:2023-05-12
摘要:本文首先采用溶液相法合成了Pt納米粒子,再通過種子介導的方法在Pt納米粒子表面沉積不同厚度的Sn外殼。將合成的Pt@Sn核殼納米顆粒催化劑用于熱催化肉桂醛加氫,結果發現Sn的引入極大地提高了產物肉桂醇(COL)的選擇性。當引入的Sn厚度適中時(2.57 nm),Pt@Sn發揮了最優的協同效應, 肉桂醛(CAL)的轉化率為95.4%,肉桂醇(COL)的選擇性可達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核殼結構的肉桂醛選擇性加氫
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