Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Combining the elements palladium and ruthenium for industry

22.09.2016

Fabricating palladium-ruthenium nanoparticles could lead to improved industrial processes.

The chemical elements palladium (Pd) and ruthenium (Ru) are both used separately in the chemical industry. For a long time, researchers have thought that combining the two could lead to improved and novel properties for industrial applications. However, the two elements do not readily mix together to become a single material.


Figure: Synthesis of structure controlled bimetallic Pd-Ru nanoparticle alloys. ©2016 Dongshuang Wu, Kohei Kusada, Hiroshi Kitagawa

A study published in the journal Science and Technology of Advanced Materials reviewed the latest research into the fabrication of Pd-Ru bimetallic nanomaterials.

Early research from the past two decades showed that simply combining Pd and Ru nanoparticles led to a mixture with better properties for industrial catalytic purposes than either of the two elements alone. Since then, many groups have reported on Pd-Ru alloy nanoparticles. By varying the fabrication methods and compositions of Pd and Ru, Pd-Ru nanomaterials with different properties arise that can be suitable in industrial applications.

In 2010, Hiroshi Kitagawa from Japan’s Kyoto University and colleagues fabricated a “solid-solution alloy” (involving the addition of the atoms of one element to the crystalline lattice of the other in a high-temperature reaction) from two neighbour elements of Pd in the periodic table, silver (Ag) and rhodium (Rh). The resultant material had attractive properties for industrial purposes, including the ability to absorb hydrogen. Rh is important in a variety of reactions in the automotive industry as well as industrial exhaust gas treatment. But it is scarce and expensive. The success of Ag-Rh led the team to speculate that, due to their similarities, combining Pd and Ru into solid-solution alloy nanoparticles might lead to a material with similar properties, providing a potential alternative to Rh.

In 2014, the team was the first to synthesize Pd-Ru solid-solution alloy nanoparticles. They found the Pd-Ru nanoparticles had higher catalytic activities compared to Ru or Pd nanoparticles. More recently, they found these nanoparticles were highly active in a catalytic process important for purifying harmful gases from exhaust gas – even outperforming Rh nanoparticles.

Further research is needed to understand how varying the size of bimetallic material affects its physical and chemical properties. For example, research has found that growing less than five ultrathin Pd films on Ru causes the resultant material to be inert to oxygen even though Pd itself is highly reactive to it. Theoretical modelling will also be important for predicting and explaining the properties of PdRu and other nanomaterials, the study concludes.

For further information please contact:

Dongshuang Wu, Kohei Kusada, Hiroshi Kitagawa*
Division of Chemistry, Graduate School of Science, Kyoto University,
Kitashirakawa, Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
*E-mail: kitagawa@kuchem.kyoto-u.ac.jp

Article information

“Recent progress in the structure control of Pd–Ru bimetallic nanomaterials”,
Dongshuang Wu, Kohei Kusada, Hiroshi Kitagawa
Science and Technology of Advanced Materials Vol. 17 (2016) p. 1221727

Published online: 19 Sep 2016
http://tandfonline.com/doi/full/10.1080/14686996.2016.1221727

Journal Information
Science and Technology of Advanced Materials (STAM) is the leading open access, international journal for outstanding research articles across all aspects of materials science. Our audience is the international materials community across the disciplines of materials science, physics, chemistry, biology as well as engineering.

The journal covers a broad spectrum of materials science research including functional materials, synthesis and processing, theoretical analyses, characterization and properties of materials. Emphasis is placed on the interdisciplinary nature of materials science and issues at the forefront of the field, such as energy and environmental issues, as well as medical and bioengineering applications

http://tandfonline.com/loi/tsta20#.VrgX82fotYU 

For more information about the journal Science and Technology of Advanced Materials, contact

Mikiko Tanifuji
Publishing Director
Science and Technology of Advanced Materials
Email: TANIFUJI.Mikiko@nims.go.jp

Associated links

Mikiko Tanifuji | Research SEA

More articles from Materials Sciences:

nachricht An innovative high-performance material: biofibers made from green lacewing silk
20.01.2017 | Fraunhofer-Institut für Angewandte Polymerforschung IAP

nachricht Treated carbon pulls radioactive elements from water
20.01.2017 | Rice University

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>