Featured Research

from universities, journals, and other organizations

Finding answers century-old questions about platinum's catalytic properties

Date:
June 8, 2011
Source:
Queen's University
Summary:
Researchers now understand more about why platinum is so efficient at producing power in hydrogen fuel cells.

Researchers now understand more about why platinum is so efficient at producing power in hydrogen fuel cells.

"Understanding platinum's properties for speeding up chemical reactions will potentially enable scientists to create significantly cheaper synthetic or metal alloy alternatives for use in sustainable devices like fuel cells," says Gregory Jerkiewicz, a professor in the Department of Chemistry who led the groundbreaking study, published in the journal Langmuir.

Dr. Jerkiewicz's research team has found that when platinum is used in reactions involving hydrogen it develops an embedded layer of hydrogen just one atom thick. This gives the platinum hydrophobic or water-repelling qualities, meaning that stray water molecules inside the fuel cell cannot bond strongly with the surface of the platinum.

The water-repelling nature of the modified platinum means that incoming hydrogen molecules can easily attach to the surface of the platinum and separate into smaller particles without requiring additional energy to displace any water molecules that are in the way.

The reduction in the energy required for hydrogen molecules to attach to the surface of the platinum means that the process is fast and efficient and the fuel cell can deliver a lot of power.


Story Source:

The above story is based on materials provided by Queen's University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Gregory Jerkiewicz, Gholamreza Vatankhah, Shin-ichi Tanaka, Jean Lessard. Discovery of the Potential of Minimum Mass for Platinum Electrodes. Langmuir, 2011; 27 (7): 4220 DOI: 10.1021/la200153n

Cite This Page:

Queen's University. "Finding answers century-old questions about platinum's catalytic properties." ScienceDaily. ScienceDaily, 8 June 2011. <www.sciencedaily.com/releases/2011/06/110606122251.htm>.
Queen's University. (2011, June 8). Finding answers century-old questions about platinum's catalytic properties. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2011/06/110606122251.htm
Queen's University. "Finding answers century-old questions about platinum's catalytic properties." ScienceDaily. www.sciencedaily.com/releases/2011/06/110606122251.htm (accessed October 20, 2014).

Share This



More Matter & Energy News

Monday, October 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

'Robotic Eyes' Helps Japan's Bipedal Bot Run Faster

'Robotic Eyes' Helps Japan's Bipedal Bot Run Faster

Reuters - Innovations Video Online (Oct. 16, 2014) Japanese researcher uses an eye-sensor camera to enable a bipedal robot to balance itself, while running on a treadmill. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com
Lockheed Martin's Fusion Concept Basically An Advertisement

Lockheed Martin's Fusion Concept Basically An Advertisement

Newsy (Oct. 15, 2014) Lockheed Martin announced plans to develop the first-ever compact nuclear fusion reactor. But some experts said the excitement is a little premature. Video provided by Newsy
Powered by NewsLook.com
First Confirmed Case Of Google Glass Addiction

First Confirmed Case Of Google Glass Addiction

Buzz60 (Oct. 15, 2014) A Google Glass user was treated for Internet Addiction Disorder caused from overuse of the device. Morgan Manousos (@MorganManousos) has the details on how many hours he spent wearing the glasses, and what his symptoms were. Video provided by Buzz60
Powered by NewsLook.com
Science Proves Why Pizza Is So Delicious

Science Proves Why Pizza Is So Delicious

Buzz60 (Oct. 15, 2014) The American Chemical Society’s latest video about chemistry in every day life breaks down pizza, and explains exactly why it's so delicious. Gillian Pensavalle (@GillianWithaG) has the video. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins