Magnetite-supported palladium single-atoms do not catalyse the hydrogenation of alkenes but small clusters do

Rossell Marta D.; Caparros Francisco J.; Angurell InmaculadaMuller GuillermoLlorca JordiSeco MiquelRossell Oriol

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Magnetite-supported palladium single-atoms do not catalyse the hydrogenation of alkenes but small clusters do

机译：Magnetite-supported钯单个原子催化烯烃的加氢,但小集群做

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The activity of supported noble metal catalysts strongly depends on the particle size. The ultimate small-size limit is the single-atom catalyst (SAC), which maximizes the catalytic efficiency in the majority of the examples. Here, we investigate the catalytic behavior of Pd SACs supported on magnetite nanoparticles and we unambiguously demonstrate that Pd SACs are absolutely inactive in the hydrogenation of various alkene substrates. Instead, Pd clusters of low atomicity exhibit outstanding catalytic performance.

机译：支持贵金属催化剂的活性强烈依赖于粒子的大小。最终小型极限是单原子催化催化剂(SAC)最大化在大多数例子中效率。我们研究Pd囊的催化行为磁铁矿纳米颗粒和我们的支持明确地表明,Pd囊绝对的加氢活性各种烯烃基板。较低的原子性表现出优异的催化的性能。

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来源
《Catalysis science & technology》 |2016年第12期|4081-4085|共5页
作者
Rossell Marta D.; Caparros Francisco J.; Angurell InmaculadaMuller GuillermoLlorca JordiSeco MiquelRossell Oriol;
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作者单位

Empa, Swiss Fed Labs Mat Sci & Technol, Electron Microscopy Ctr, Uberlandstr 129, CH-8600 Dubendorf, Switzerland;

UB, Dept Quim Inorgan, Marti & Franques 1-11, Barcelona 08028, Spain;

UPC, Inst Tecn Energet, Diagonal 647, Barcelona 08028, Spain;

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正文语种英语
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关键词
Catalysis; Atomicity; alkenesMagnetite NanoparticlesCatalystsHydrogenation;

机译：网络;Atomicity;alkenesMagnetiteNanoparticlesCatalystsHydrogenation;

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Magnetite-supported palladium single-atoms do not catalyse the hydrogenation of alkenes but small clusters do

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