My watch list
my.chemeurope.com  
Login  

A new synthesis route for alternative catalysts of noble metals

27-Jul-2017

Hirotomo Nishihara

Synthesis schemes of (a) conventional carbonaceous catalysts and (b) this work for ordered carbonaceous frameworks.

Researchers have developed a new synthesis route for alternative catalysts of noble metals for versatile chemical reactions that could help address environmental concerns.

Noble metals such as platinum are useful as catalysts for versatile chemical reactions including fuel cell vehicles and reduction of CO2 emission. However, they are too costly to be used for these purposes.

As inexpensive alternatives, organic-based catalysts and carbonaceous catalysts were explored, but were ultimately found to be impractical. This was because organic-based catalysts tend to be active but unstable, while carbonaceous catalysts are stable but less active.

In this work, researchers believe they have found a solution by developing a new synthesis route for intermediate materials of organic-based catalysts and carbonaceous catalysts.

While conventional carbonaceous catalysts have amorphous carbonaceous structures that cause a decline in catalytic activities (Fig. 1a), the new synthesis route enables the formation of carbonaceous catalysts with controlled chemical structures like organic-based catalysts (Fig. 1b). This synthesis route is capable of developing alternative catalysts of noble metals for many eco-friendly technologies such as fuel cell vehicles, hydrogen generation from water and CO2 reduction.

Facts, background information, dossiers
More about Tohoku University
  • News

    Simple, mass production of giant vesicles using a porous silicone material

    A technique to generate large amounts of giant vesicle (liposome) dispersion has been developed. The technique involves adsorbing a lipid into a silicone porous material resembling a "marshmallow-like gel" and then squeezing it out like a sponge by impregnating a buffer solution. This work ... more

    Efficient synthesis of multi-substituted anilines by domino rearrangement

    Anilines have been widely used in medicine, in particular in acetaminophen pain killers. They are also used in organic materials, such as liquid crystals and organic light-emitting diodes. The ability to efficiently synthesize a new class of aniline derivatives will enable further developme ... more

    Stacking on the graphene

    Researchers in Japan have found a way to form two materials, each made of three layers of graphene. Each material's graphene is stacked differently and has unique electrical properties. Their work has implications for the development of novel electronic devices, such as photo sensors that c ... more

  • Videos

    Shape Memory Alloy Demonstration

    The Mg-Sc alloy sheet was changed into a round shape using liquid nitrogen. The sheet was then exposed to ambient air. It returned to its original shape upon heating. more

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE