A high performance catalyst of shape-specific ruthenium nanoparticles for production of primary amines by reductive amination of carbonyl compounds†,Chemical Science

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A high performance catalyst of shape-specific ruthenium nanoparticles for production of primary amines by reductive amination of carbonyl compounds†
Chemical Science ( IF 7.6 ) Pub Date : 2018-06-18 00:00:00 , DOI: 10.1039/c8sc01197d
Debraj Chandra _{1,

2,

3,

4,

5} , Yasunori Inoue _{2,

3,

4,

5,

6} , Masato Sasase _{5,

7,

8,

9,

10} , Masaaki Kitano _{5,

7,

8,

9,

10} , Asim Bhaumik _{11,

12,

13,

14} , Keigo Kamata _{2,

3,

4,

5,

6} , Hideo Hosono _{2,

3,

4,

5,

6} , Michikazu Hara _{2,

3,

4,

5,

6}

Affiliation

The creation of metal catalysts with highly active surfaces is pivotal to meeting the strong economic demand of the chemical industry. Specific flat-shaped pristine fcc ruthenium nanoparticles having a large fraction of atomically active {111} facets exposed on their flat surfaces have been developed that act as a highly selective and reusable heterogeneous catalyst for the production of various primary amines at exceedingly high reaction rates by the low temperature reductive amination of carbonyl compounds. The high performance of the catalyst is attributed to the large fraction of metallic Ru serving as active sites with weak electron donating ability that prevail on the surface exposed {111} facets of flat-shaped fcc Ru nanoparticles. This catalyst exhibits a highest turnover frequency (TOF) of ca. 1850 h⁻¹ for a model reductive amination of biomass derived furfural to furfurylamine and provides a reaction rate approximately six times higher than that of an efficient and selective support catalyst of Ru-deposited Nb₂O₅ (TOF: ca. 310 h⁻¹).

中文翻译：

形状特定的钌纳米颗粒的高性能催化剂，用于通过羰基化合物的还原胺化生产伯胺†

具有高活性表面的金属催化剂的产生对于满足化学工业的强劲经济需求至关重要。已经开发出具有暴露在其平坦表面上的大部分原子活性{111}小面的特定的扁平状原始fcc钌纳米颗粒，该纳米颗粒可作为高选择性和可重复使用的非均相催化剂，用于通过以下方法以极高的反应速率生产各种伯胺。羰基化合物的低温还原胺化。催化剂的高性能归因于大部分金属Ru用作具有弱电子给体能力的活性位点，主要存在于扁平状fcc Ru纳米颗粒的{111}小面暴露的表面上。该催化剂的最高周转频率（TOF）为。1850小时^-1用于将生物质衍生的糠醛还原为糠胺的模型还原胺化，其反应速率比Ru沉积的Nb₂ O₅的高效且选择性的载体催化剂的反应速率高约六倍（TOF：约310 h^-1）。

更新日期：2018-06-18

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