Active 3D Pd/graphene aerogel catalyst for hydrogen generation from the hydrolysis of ammonia-borane

作者：Zhong, Wen-da; Tian, Xi-ke^*; Yang, Chao; Zhou, Zhao-xin; Liu, Xiang-wen; Li, Yong^*

来源：International Journal of Hydrogen Energy, 2016, 41(34): 15225-15235.

DOI：10.1016/j.ijhydene.2016.06.263

• Hydrogen evolution
• Ammonia borane
• Graphene aerogel
• Pd nanoparticles
• Metal-support interaction

In this work, a novel three dimensional (3D) Pd/graphene aerogel hybrid was successfully synthesized and characterized. The preparation process of the Pd/graphene aerogel was also discussed systematically. Experimental results indicated that this kind of 3D Pd/graphene aerogel hybrid exhibited excellent catalytic activity on the ammonia borane hydrolysis to release hydrogen with the turnover frequency value of 9.70 mol(H2)mol(metal)(-1)min(-1), and activation energy E-a value of 30.82 kJ/mol, which is higher than that of 2D Pd/RGO and original Pd nanoparticles. Furthermore, the abundant defects of graphene aerogel support can transfer the electrons of Pd nanoparticles to graphene aerogel due to the metal-support interaction, which is beneficial to the ammonia borane hydrolysis reaction. In addition, the pore-rich 3D Pd/graphene aerogel has offered huge effective reacting acreages for ammonia borane hydrolysis, which is helpful for its reusability.

• 出版日期2016-9-14
• 单位中国地质大学（北京）