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Study Data from Boreskov Institute of Catalysis Update Understanding of Nanoparticles

June 24, 2014



By a News Reporter-Staff News Editor at Physics Week -- Researchers detail new data in Nanoparticles. According to news originating from Novosibirsk, Russia, by VerticalNews correspondents, research stated, "Hydrogen storage properties of supported Pd nanoparticles with average sizes in the range 2.7-7.6 nm were studied using indirect nanoplasmonic sensing."

Our news journalists obtained a quote from the research from the Boreskov Institute of Catalysis, "For each particle size, a series of isotherms was measured and, through Van't Hoff analysis, the changes in enthalpy upon hydride formation/decomposition were determined. Contrary to the expected decrease of the enthalpy, due to increasing importance of surface tension in smaller particles, we observe a very weak size dependence in the size range under consideration."

According to the news editors, the research concluded: "We attribute this to a compensation effect due to an increased fraction of hydrogen atoms occupying energetically favorable subsurface sites in smaller nanoparticles."

For more information on this research see: Thermodynamics of hydride formation and decomposition in supported sub-10 nm Pd nanoparticles of different sizes. Chemical Physics Letters, 2014;603():75-81. Chemical Physics Letters can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Chemical Physics Letters - www.elsevier.com/wps/product/cws_home/505707)

The news correspondents report that additional information may be obtained from C. Wadell, Russian Academy Sci, Boreskov Inst Catalysis, Novosibirsk 630090, Russia. Additional authors for this research include T. Pingel, E. Olsson, I. Zoric, V.P. Zhdanov and C. Langhammer.

Keywords for this news article include: Russia, Eurasia, Physics, Novosibirsk, Nanotechnology, Thermodynamics, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Physics Week


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