Evidence for the Surface-Catalyzed Suzuki-Miyaura Reaction over Palladium Nanoparticles: An Operando XAS Study
Evidence for the Surface-Catalyzed Suzuki-Miyaura Reaction over Palladium Nanoparticles: An Operando XAS Study
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DOI：
10.1002/anie.200906675
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发表时间：
2010-01-01
影响因子：
16.6
通讯作者：
Lee, Adam F.
中科院分区：
文献类型：
--
作者：
Ellis, Peter J.;Fairlamb, Ian J. S.;Lee, Adam F.
不需要离开：在SuzukiMlyaura交叉偶联反应期间催化活性钯纳米颗粒的X射线吸收光谱显示，纳米颗粒在反应条件下是稳定的，并且交叉偶联涉及催化循环中表面钯缺陷位点的直接参与（参见图片）。选择性的化学和结构毒物提供了进一步的证据，一个异质性的活性位点。
No need to get away: X-ray absorption spectroscopy of catalytically active palladium nanopartlcles during a SuzukiMlyaura cross-coupling reaction revealed that the nanopartlcles were stable under the reaction conditions, and that cross-coupling Involved the direct participation of surface palladium defect sites In the catalytic cycle (see picture). Selective chemical and structural poisons provided further evidence for a heterogeneous active site.