Tin-decorated ruthenium nanoparticles: a way to tune selectivity in hydrogenation reaction.
Tin-decorated ruthenium nanoparticles: a way to tune selectivity in hydrogenation reaction.
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DOI：
10.1039/c4nr00791c
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发表时间：
2014-07
期刊：
影响因子：
6.7
通讯作者：
E. Bonnefille;F. Novio;T. Gutmann;R. Poteau;P. Lecante;J. Jumas;K. Philippot;B. Chaudret
中科院分区：
文献类型：
--
作者：
E. Bonnefille;F. Novio;T. Gutmann;R. Poteau;P. Lecante;J. Jumas;K. Philippot;B. Chaudret
两个系列的钌纳米粒子稳定的聚合物（聚乙烯吡咯烷酮; Ru/PVP）或配体（bisdiphenylphosphinobutane; Ru/dppb）与三丁基锡氢化物[（n-C4 H9）3SnH]反应，导致锡修饰的钌纳米粒子，Ru/PVP/Sn和Ru/dppb/Sn。通过与Ru/PVP和Ru/dppb的比较，改变Sn/Ru摩尔比以研究表面锡含量对这些新纳米颗粒的性质的影响。除了HRTEM和WAXS分析，光谱技术（IR，NMR和穆斯堡尔谱）结合理论计算和一个简单的催化试验（苯乙烯加氢），使我们能够证明形成μ（3）-桥接的“SnR”基团的钌表面，以及合理的表面化学和催化活性的影响。
Two series of ruthenium nanoparticles stabilized either by a polymer (polyvinylpyrrolidone; Ru/PVP) or a ligand (bisdiphenylphosphinobutane; Ru/dppb) were reacted with tributyltin hydride [(n-C4H9)3SnH] leading to tin-decorated ruthenium nanoparticles, Ru/PVP/Sn and Ru/dppb/Sn. The Sn/Ru molar ratio was varied in order to study the influence of the surface tin content on the properties of these new nanoparticles, by comparison with Ru/PVP and Ru/dppb. Besides HRTEM and WAXS analyses, spectroscopic techniques (IR, NMR and Mössbauer) combined with theoretical calculations and a simple catalytic test (styrene hydrogenation) allowed us to evidence the formation of μ(3)-bridging "SnR" groups on the ruthenium surface as well as to rationalize their influence on surface chemistry and catalytic activity.