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Studies Conducted at Spanish National Research Council (CSIC) on Nanoparticles Recently Reported

May 20, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators discuss new findings in Nanoparticles. According to news reporting originating in Madrid, Spain, by NewsRx journalists, research stated, "PtIr (3:1) nanoparticles supported on TiC, TiCN and TiN were investigated as bifunctional electrocatalysts for the oxygen electrode of unitized regenerative fuel cells. The electrocatalysts were prepared by the ethylene glycol method."

The news reporters obtained a quote from the research from Spanish National Research Council (CSIC), "Physicochemical characterization was carried out by X-ray Diffraction, Transmission Electronic Microscope and X-ray Photoelectron Spectroscopy, meanwhile rotating ring-disk electrode and in situ Fourier transform infrared spectroscopy were employed to determine the electrochemical activity and stability. Results reveal the highest activity toward oxygen reduction and evolution reactions on TiCN-based materials, in addition to the best compromise between catalytic activity and stability. In this context, nitrogen loading appears to be an important factor for the catalyst performance and noble metal anchoring. It is observed an increment of particle agglomeration with nitrogen content in the catalyst support."

According to the news reporters, the research concluded: "Also, TiN-based catalyst presents the lowest noble metal inclusion and high passivation degree by dissolved oxygen; whereas TiC and TiCN based catalysts develop an anodic peak at ca. 1.1 V, which is associated to TiO2 and CO2 formation."

For more information on this research see: Electrocatalytic stability of Ti based-supported Pt3Ir nanoparticles for unitized regenerative fuel cells. International Journal of Hydrogen Energy, 2014;39(10):5477-5484. International Journal of Hydrogen Energy can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier -; International Journal of Hydrogen Energy -

Our news correspondents report that additional information may be obtained by contacting M. Roca-Ayats, CSIC, Inst Catalisis & Petroleoquim, Grp Energia & Quim Sostenible EQS, E-28049 Madrid, Spain. Additional authors for this research include G. Garcia, J.L. Galante, M.A. Pena and M.V. Martinez-Huerta (see also Nanoparticles).

Keywords for this news article include: Spain, Madrid, Europe, Chalcogens, Nanotechnology, Emerging Technologies

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Source: Life Science Weekly

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