Hydrogen generation from decomposition of hydrous hydrazine over Ni-Ir/CeO2 catalyst

作者：Dai, Hongbin; Zhong, Yujie; Wang, Ping^*

来源：Progress in Natural Science, 2017, 27(1): 121-125.

DOI：10.1016/j.pnsc.2016.12.012

• Chemical hydrogen storage
• Catalysis
• Hydrous hydrazine
• Hydrogen generation

The synthesis of highly active and selective catalysts is the central issue in the development of hydrous hydrazine (N2H4.H2O) as a viable hydrogen carrier. Herein, we report the synthesis of bimetallic Ni-Ir nanocatalyts supported on CeO2 using a one-pot coprecipitation method. A combination of XRD, HRTEM and XPS analyses indicate that the Ni-Ir/CeO2 catalyst is composed of tiny Ni-Ir alloy nanoparticles with an average size of around 4 nm and crystalline CeO2 matrix. The Ni-Ir/CeO2 catalyst exhibits high catalytic activity and excellent selectivity towards hydrogen generation from N2H4.H2O at mild temperatures. Furthermore, in contrast to previously reported Ni-Pt catalysts, the Ni-Ir/CeO2 catalyst shows an alleviated requirement on alkali promoter to achieve its optimal catalytic performance.

• 出版日期2017-2
• 单位华南理工大学; 西安石油大学