提高氨硼烷储氢性能全解.ppt

* * Xiong ZT., Chen P. et al Nature Mater. 2008, 7. 138-141. Xiong ZT., Chen P. et al Nature Mater. 2008, 7. 138-141. * LiNH2BH3(NH3BH3) Xiong ZT., Chen P. et al Chem. Commun., 2008, 5595–5597 * Xiong ZT., Chen P. et al Chem. Commun., 2008, 5595–5597 * Xiong ZT., Chen P. et al Chem. Commun., 2008, 5595–5597 * * Reading is important! Lithium-Catalyzed Dehydrogenation of AmmoniaBorane within Mesoporous Carbon Framework Li L., Yao XD, et al. Adv. Funct. Mater. 2009, 19, 265–271 Combination of the above methods * Two notable phenomena associated with thisnew AB system: i) a synergetic effect of nanostructure con?nement and Li catalysis that signi?cantly enhances the dehydrogenation kinetics of AB; ii) the suppression of volatile products such as borazine and NH3. Li L., Yao XD, et al. Adv. Funct. Mater. 2009, 19, 265–271 * * * * He T., Chen P, et al. Chem. Mater. 2009, 21, 2315–2318 The others: * NH3 * Li+ is easy to absorb ammonia! Li(NH3)NH2BH3 * Received by Chem- Eur J * * * Reporter: Guanglin Xia Members: Zhenjie Wang Zhicheng Liu Liangliang Zou Yanan Kang Yuan Li Improved Hydrogen Storage Properties of Ammonia Borane Contents Introduction Nanoscaffold Mediation Substituting H atom in the NH3 group * * It has become increasingly clear that hydrogen as an energy carrier is ‘in’ and carbonaceous fuels are ‘out’. Hydrogen energy is high efficiency and near zero emissions. The hydrogen economy is coming. James A. Ritter, Materialstoday, September 2003 * * H2 storage is a critical enabling technology for H2 use as an energy carrier The low volumetric density of gaseous fuels requires a storage method which compacts the fuel. Hence, hydrogen storage systems are inherently more complex than liquid fuels. Storage technologies are needed in all aspects of hydrogen utilization. production distribution utilization * * * Ammonia borane (AB), NH3BH3, has