A new synthesis route for alternative catalysts of noble metals

July 25, 2017

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.
-end-
This work was done through the Five-Star Alliance research program of the Network Joint Research Centre for Materials and Devices.

Tohoku University

Related Catalysts Articles from Brightsurf:

Ultrafast laser experiments pave way to better industrial catalysts
Arizona State University's Scott Sayres and his team have recently published an ultrafast laser study on uncharged iron oxide clusters, which could ultimately lead to the development of new and less-expensive industrial catalysts.

Properties of catalysts studied with gamma ray resonance
Steam-assisted oil extraction methods for heavy deposits have long been the focus of attention at Kazan Federal University.

Palladium catalysts can do it
Palladium catalysts help synthesize key chemicals for many industries. However, direct reaction of two basic reagents, aryl halides and alkyllithium compounds, remains a challenge.

Cyanobacteria as "green" catalysts in biotechnology
Researchers from TU Graz and Ruhr University Bochum show in the journal ACS Catalysis how the catalytic activity of cyanobacteria, also known as blue-green algae, can be significantly increased.

Better catalysts for a sustainable bioeconomy
Researchers at the Paul Scherrer Institute PSI and from ETH Zurich want to make so-called zeolites more efficient.

Sandwich catalysts offer higher activity and durability
POSTECH professor In Su Lee's team develops a double-layered nanoporous platinum catalyst that activates hydrogen generation.

Bespoke catalysts for power-to-X
Suitable catalysts are of great importance for efficient power-to-X applications -- but the molecular processes occurring during their use have not yet been fully understood.

Efficient indium oxide catalysts designed for CO2 hydrogenation to methanol
A team jointly led by Profs.SUN Yuhan, GAO Peng, and LI Shenggang at the Shanghai Advanced Research Institute (SARI) of the Chinese Academy of Sciences reported a successful case of theory-guided rational design of indium oxide (In2O3) catalysts for CO2 hydrogenation to methanol with high activity and selectivity.

Elucidation of nanostructures in practical heterogeneous catalysts
The nanostructure of the heterogeneous Ziegler-Natta catalyst was clarified on the basis of cutting-edge analytical techniques.

Upgrading biomass with selective surface-modified catalysts
Loading single platinum atoms on titanium dioxide promotes the conversion of a plant derivative into a potential biofuel.

Read More: Catalysts News and Catalysts Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.