Highly porous palladium nanodendrites: wet-chemical synthesis, electron tomography and catalytic activity

Mourdikoudis Stefanos; Montes-Garcia Veronica; Rodal-Cedeira Sergio; Winckelmans Naomi; Perez-Juste Ignacio; Wu Han; Bals Sara; Perez-Juste Jorge; Pastoriza-Santos Isabel

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Highly porous palladium nanodendrites: wet-chemical synthesis, electron tomography and catalytic activity

机译：高度多孔钯纳米二聚石：湿化学合成，电子断层扫描和催化活性

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A simple procedure to obtain highly porous hydrophilic palladium nanodendrites in one-step is described. The synthetic strategy is based on the thermal reduction of a Pd precursor in the presence of a positively charged polyelectrolyte such as polyethylenimine (PEI). Advanced electron microscopy techniques combined with X-ray diffraction (XRD), thermogravimetry and BET analysis demonstrate the polycrystalline nature of the nanodendrites as well as their high porosity and active surface area, facilitating a better understanding of their unique morphology. Besides, catalytic studies performed using Raman scattering and UV-Vis spectroscopies revealed that the nanodendrites exhibit a superior performance as recyclable catalysts towards hydrogenation reaction compared to other noble metal nanoparticles.

机译：描述了在单步中获得高度多孔亲水性钯纳米丁酯的简单方法。合成策略基于在具有带正电荷的聚电解质（例如聚乙烯亚胺（PEI）的带正电荷的聚电解质的情况下的PD前体的热还原。先进的电子显微镜技术与X射线衍射（XRD）相结合，热重率和BET分析证明了纳米二丁基的多晶性质以及它们的高孔隙率和活性表面积，促进了对它们独特的形态学的了解。此外，使用拉曼散射和UV-Vis光谱进行的催化研究表明，与其他贵金属纳米颗粒相比，纳米二丁基表现出作为氢化反应的可回收催化剂的优异性能。

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来源
《Dalton transactions: An international journal of inorganic chemistry》 |2019年第11期|共10页
作者
Mourdikoudis Stefanos; Montes-Garcia Veronica; Rodal-Cedeira Sergio; Winckelmans Naomi; Perez-Juste Ignacio; Wu Han; Bals Sara; Perez-Juste Jorge; Pastoriza-Santos Isabel;
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作者单位

Univ Vigo Dept Phys Chem Vigo 36310 Spain;

Univ Vigo Dept Phys Chem Vigo 36310 Spain;

Univ Vigo Dept Phys Chem Vigo 36310 Spain;

UCL Healthcare Biomagnet &

Nanomat Labs 21 Albemarle St London W1S 4BS England;

Univ Vigo Dept Phys Chem Vigo 36310 Spain;

UCL CNIE Dept Chem Engn Torrington Pl London WC1E 7JE England;

UCL Healthcare Biomagnet &

Nanomat Labs 21 Albemarle St London W1S 4BS England;

Univ Vigo Dept Phys Chem Vigo 36310 Spain;

Univ Vigo Dept Phys Chem Vigo 36310 Spain;

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正文语种 eng
中图分类化学;无机化学;
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5. Highly porous palladium nanodendrites: wet-chemical synthesis, electron tomography and catalytic activity [J] . Mourdikoudis Stefanos, Montes-Garcia Veronica, Rodal-Cedeira Sergio, Dalton transactions: An international journal of inorganic chemistry . 2019,第11期

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Highly porous palladium nanodendrites: wet-chemical synthesis, electron tomography and catalytic activity

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