A ruthenium-based catalyst with highly active, flat surfaces outperforms metal-based competitors

phys.org | 7/3/2018 | Staff
tictac399 (Posted by) Level 3
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Scientists in Japan and India have developed a reusable, high-performance catalyst based on flat-shaped ruthenium nanoparticles (Ru-NP) for the production of valuable chemicals. Due to its demonstrated durability, the catalyst could be widely used in the large-scale production of many types of dyes, detergents, agrochemicals and pharmaceuticals.

A study led by researchers at Tokyo Institute of Technology (Tokyo Tech) has shown that nanoscale changes in surface structure can vastly improve the performance of metal catalysts used in the production of primary amines, an important class of compounds in the chemical industry.

Researchers - Catalyst - Number - Facets - Surfaces

The researchers developed a ruthenium-based catalyst composed of a large number of atomically active facets on their flat surfaces.

Compared to conventional metal-supported catalysts, the new catalyst, with its highly active surface structure, achieved an overwhelmingly high catalytic turnover.

Study - Kinds - Metal - Catalysts - Model

The study involved comparing how well different kinds of metal catalysts could convert biomass-derived furfural to furfurylamine. This served as a model reaction for reductive amination, the main process used to yield primary amines.

The new catalyst exhibited a turnover frequency of 1850 per hour. This figure represents a six-fold increase in efficiency over a metal-supported catalyst (RU/NB2O5) developed previously by some of the same team members, including Michikazu Hara and Keigo Kamata at Tokyo Tech's Institute...
(Excerpt) Read more at: phys.org
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