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Hydrogen drives future of energy

Lab collaborates as part of Department of Energy’s Energy Frontier Research in Extreme Environments center
Tuesday, April 29, 2014

Mayanovic in labThe ride of the future may be hydrogen cell vehicles, but until hydrogen is more readily available, these energy saving cars may stay off more roads than on. In physicist Dr. Robert Mayanovic’s laboratory at Missouri State University, which is one of 12 partner institutions in the United States funded through the Department of Energy’s Energy Frontier Research in Extreme Environments (EFree) center, he and his students are researching materials to extract hydrogen more efficiently to make it a readily available energy source.

“How do we harvest and store energy so that it’s done in a benign manner to the environment?” Mayanovic asked. “One of the things we’re aiming to do is to make energy conversion more efficient. One way to do that is to go with higher temperatures and pressures for the exchange and mediating fluids in energy-conversion reactors.”

Although hydrogen is the simplest element – only one proton and one electron – it occurs naturally only in a minimal amount as a gas on Earth. It is only found in compounds with other elements, as in water combined with oxygen, or in many other fuels like gasoline, natural gas, methanol and propane. Burning fossil fuels like coal or extracting hydrogen from gasoline impacts the environment negatively, so Mayanovic is collaborating with other scientists within the EFree center to find a more sustainable solution.

Small doesn’t begin to describe it
Since his days as a student, Mayanovic has been drawn to research of materials in extreme environments, like high pressure or in fluids at high temperature and pressure. He’s also focused his research on nanoscale materials, something so small that thousands could fit within a hair and is invisible using an ordinary optical microscope.

In his lab, they have been able to modify some of the nanoscale materials to make them more responsive in the visible range (opposed to the ultraviolet range) for applications involving splitting water to harvest hydogen. However, Mayanovic isn’t satisfied with the efficiency of these materials as they are still impractical for widespread energy applications. Similarly, he noted electrolysis (the process by which you split water to make electricity) is an inefficient method because you spend more energy than what is extracted in the form of hydrogen.

Behind the safety goggles, you also will see work being done in Mayanovic’s lab on materials with catalytic or reactive properties to induce biomass gasification – or more simply put, to create new energy sources.

“What you’re doing is taking your biomass, putting it in a reactor under high pressures and temperatures with water,” he said. “We hope to cause a reaction to convert the biomass into hydrogen or methane, so you have a new energy source.”

These extreme environments – the high pressures and high temperature fluids – make the study very unique from others who are looking at harvesting hydrogen.

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College of Natural and Applied Sciences
The College of Natural and Applied Sciences incorporates more than 20 undergraduate and 13 graduate programs along with one cooperative program offered through a partnership with Missouri S&T. The academic departments that make up the college include: biology; chemistry; computer science; engineering; geography, geology and planning; hospitality and restaurant administration; mathematics; and physics, astronomy and materials science. Students have the opportunity for intense hands-on research and internships through a number of outreach and research centers and work alongside faculty who are producing cutting-edge research in their fields.

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