Author/Authors :
Guo، نويسنده , , Lijing and Jiao، نويسنده , , Lifang and Li، نويسنده , , Li and Wang، نويسنده , , Qinghong and Liu، نويسنده , , Guang-Fen Du، نويسنده , , Hongmei and Wu، نويسنده , , Qiong and Du، نويسنده , , Juan and Yang، نويسنده , , Jiaqin and Yan، نويسنده , , Chao and Wang، نويسنده , , Yijing and Yuan، نويسنده , , Huatang، نويسنده ,
Abstract :
LiBH4 nano-particles are incorporated into mesoporous TiO2 scaffolds via a chemical impregnation method. And the enhanced desorption properties of the composite have been investigated. The LiBH4/TiO2 sample starts to release hydrogen at 220 °C and the maximal desorption peak occurs at about 330 °C, much lower compared to the bulk LiBH4. Furthermore, the composite exhibits excellent dehydrogenation kinetics, with 11 wt% of hydrogen liberated from LiBH4 at 300 °C within 3 h. X-ray diffraction and Fourier transform infrared spectroscopy are used to confirm the nanostructure of LiBH4 in the TiO2 scaffold. This work demonstrates that confinement within active porous scaffold host is a promising approach for enhancing hydrogen decomposition properties of light-metal complex hydrides.
Keywords :
LiBH4 , Mesoporous TiO2 , Confinement , Desorption properties
