caa a22 4500 463228375 CHVBK 20180405153234.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10853-007-1567-0 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1567-0 Niobium pentoxide as promoter in the mixed MgH2/Nb2O5 system for hydrogen storage: a multitechnique investigation of the H2 uptake [Elektronische Daten] [Francesco Dolci, Marco Chio, Marcello Baricco, Elio Giamello] Nb2O5 is known as good promoter for adsorption/desorption kinetics of hydrogen in magnesium hydride. In this article the interaction with hydrogen of bare Nb2O5, the oxidic component of the mixed MgH2/Nb2O5 system, is investigated in various conditions (i.e. employing atomic, molecular and nascent hydrogen). The state of the hydrogen-Nb2O5 system was monitored using various techniques including: X-ray Diffraction, Electron Paramagnetic Resonance, Diffuse Reflectance UV-Vis Spectroscopy, Thermal Desorption Spectroscopy -Mass Spectrometry, Differential Scanning Calorimetry and Thermal Programmed Desorption. Niobium (V) oxide is not at all inert while interacting with hydrogen. This oxide is partially reduced by hydrogen, which is incorporated in the solid and released as both molecular hydrogen and water. This peculiar behaviour, reminiscent of some properties of the bronze family, suggests an active chemical role played by Nb2O5 in the mixed MgH2/Nb2O5 system. Springer Science+Business Media, LLC, 2007 Dolci Francesco Dipartimento di Chimica IFM, Università di Torino and NIS, Nanostructured Interfaces and Surfaces, Center of Excellence, Via Pietro Giuria 7-9, 10125, Torino, Italy aut Chio Marco Dipartimento di Chimica IFM, Università di Torino and NIS, Nanostructured Interfaces and Surfaces, Center of Excellence, Via Pietro Giuria 7-9, 10125, Torino, Italy aut Baricco Marcello Dipartimento di Chimica IFM, Università di Torino and NIS, Nanostructured Interfaces and Surfaces, Center of Excellence, Via Pietro Giuria 7-9, 10125, Torino, Italy aut Giamello Elio Dipartimento di Chimica IFM, Università di Torino and NIS, Nanostructured Interfaces and Surfaces, Center of Excellence, Via Pietro Giuria 7-9, 10125, Torino, Italy aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7180-7185 0022-2461 42:17<7180 2007 42 10853 https://doi.org/10.1007/s10853-007-1567-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1567-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dolci Francesco Dipartimento di Chimica IFM, Università di Torino and NIS, Nanostructured Interfaces and Surfaces, Center of Excellence, Via Pietro Giuria 7-9, 10125, Torino, Italy aut NATIONALLICENCE 700 1- Chio Marco Dipartimento di Chimica IFM, Università di Torino and NIS, Nanostructured Interfaces and Surfaces, Center of Excellence, Via Pietro Giuria 7-9, 10125, Torino, Italy aut NATIONALLICENCE 700 1- Baricco Marcello Dipartimento di Chimica IFM, Università di Torino and NIS, Nanostructured Interfaces and Surfaces, Center of Excellence, Via Pietro Giuria 7-9, 10125, Torino, Italy aut NATIONALLICENCE 700 1- Giamello Elio Dipartimento di Chimica IFM, Università di Torino and NIS, Nanostructured Interfaces and Surfaces, Center of Excellence, Via Pietro Giuria 7-9, 10125, Torino, Italy aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7180-7185 0022-2461 42:17<7180 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer