Desorption of Gasses Induced by Ferroelectric Transition in SbSI Nanowires

P. Szperlicha, M. Nowaka, M. Jesioneka, A. Starczewskaa, K. Mistewicza, and J. Szalab aSolid State Physics Section, Institute of Physics - Center for Science and Education, Silesian University of Technology, Z. Krasińskiego 8, 40-019 Katowice, Poland bDepartment of Materials Science, Silesian University of Technology, Z. Krasińskiego 8, 40-019 Katowice, Poland

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For the first time the thermal desorption of H2, N2, O2 and CO2 is presented for antimony sulfoiodide (SbSI) xerogel made up of large quantity nanowires. The desorption has been observed near ferroelectric phase transition established at Tc = 293.0(2) K. The Sievert measurements have shown that the hydrogen uptake is linear function of H2 pressure (when p < 1.1 × 105 Pa). The hydrogen storage density in SbSI gel amounted 1.24 × 10-2 wt% (for p = 1.08 × 105 Pa at room temperature).

DOI: 10.12693/APhysPolA.126.1110 68.43.Vx, 77.84.-s, 68.43.-h, 62.23.Hj