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14 Sep

New laser-based instrument designed to boost hydrogen research

by TMR Desk
Education
Advance could lead to more environmentally friendly rocket fuels Researchers have developed an analytical instrument that uses an ultrafast laser for precise temperature and concentration measurements of hydrogen. Their new approach could help advance the study of greener hydrogen-based fuels for use in spacecraft and airplanes. "This instrument will provide powerful capabilities to probe dynamical processes such as diffusion, mixing, energy transfer and chemical reactions," said research team leader Alexis Bohlin from Luleå University of Technology in Sweden. "Understanding these processes is fundamental to developing more environmentally friendly propulsion engines." In the Optica Publishing Group journal Optics Express, Bohlin and colleagues from Delft University of Technology and Vrije Universiteit Amsterdam, both in the Netherlands, describe their new coherent Raman spectroscopy instrument for studying hydrogen....
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12 Sep

Cheaper hydrogen fuel cell could mean better green energy options

by TMR Desk
Technology
Imperial researchers have developed a hydrogen fuel cell that uses iron instead of rare and costly platinum, enabling greater use of the technology. Hydrogen fuel cells convert hydrogen to electricity with water vapour as the only by-product, making them an attractive green alternative for portable power, particularly for vehicles. However, their widespread use has been hampered in part by the cost of one of the primary components. To facilitate the reaction that produces the electricity, the fuel cells rely on a catalyst made of platinum, which is expensive and scarce. Now, a European team led by Imperial College London researchers has created a catalyst using only iron, carbon, and nitrogen -- materials that are cheap and readily available -- and shown that it...
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