Hydrogenation and Dehydrogenation of the Clathrate NaxSi136


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Samples of the clathrate NaxSi136 were saturated with hydrogen to 100 atm at 25°C in a Sievertstype apparatus and at pressures of 6 and 28 kbar in lentil-type high-pressure apparatuses at 100 and 250°C. X-ray powder diffraction analysis and Raman spectroscopy of the samples quenched after the saturation with hydrogen showed that the phase composition of the clathrates did not change. Heating of the quenched samples to room temperature in a thermal desorption setup produced not hydrogen, but hydrogen-containing gases, as we assumed, silanes. Heating to 650°C leads to decomposition of these compounds to form hydrogen.

作者简介

V. Efimchenko

Institute of Solid State Physics

编辑信件的主要联系方式.
Email: efimchen@issp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432

O. Barkalov

Institute of Solid State Physics

Email: efimchen@issp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432

V. Kulakov

Institute of Solid State Physics

Email: efimchen@issp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432

V. Son

Institute of Problems of Chemical Physics

Email: efimchen@issp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432

K. Meletov

Institute of Solid State Physics

Email: efimchen@issp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432

B. Bulychev

Moscow State University

Email: efimchen@issp.ac.ru
俄罗斯联邦, Moscow, 119991

I. Sholin

Institute of Solid State Physics

Email: efimchen@issp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432

D. Kapustin

Moscow State University

Email: efimchen@issp.ac.ru
俄罗斯联邦, Moscow, 119991

D. Matveev

Institute of Solid State Physics

Email: efimchen@issp.ac.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432

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