Journal
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
Volume 27, Issue 1, Pages 121-125Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2016.12.012
Keywords
Chemical hydrogen storage; Catalysis; Hydrous hydrazine; Hydrogen generation
Funding
- National Natural Science Foundation of China [51471168, 51671087]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [51621001]
- Natural Science Foundation of Guangdong Province of China [2016A030312011]
- 985 Project of South China University of Technology
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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.
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