Journal
JOURNAL OF POWER SOURCES
Volume 257, Issue -, Pages 293-299Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2014.01.122
Keywords
Core shell; Ammonia borane; Hydrogen generation; Hydrolysis
Funding
- National Natural Science Foundation of China [21103074]
- Natural Science Foundation of Jiangxi Province of China [20114BAB203010, 20132BAB203014]
- Jiangxi Provincial Department of Science and Technology [20111BDH80023]
- Jiangxi Provincial Education Department [G1112190]
- Gan-po talent 555 Project of Jiangxi Province
Ask authors/readers for more resources
Ru@SiO2 core shell structured nanospheres have been prepared via a one-pot synthetic route in a NP-5/cyclohexane reverse micelle system and characterized by XRD, SEM, TEM, N-2 adsorption-desorption, and H-2 temperature programmed desorption. The characterized results show that ultrafine Ru nanoparticles (NPs) of around 2 nm are effectively embedded in the center of well-proportioned spherical and porous silica nanospheres (25 nm in diameter). Interestingly, the number of Ru NPs increases inside the spherical particles of SiO2 as the increase of Ru loading. The as-synthesized Ru@SiO2 exhibits high catalytic activity and good durability for hydrogen generation from the aqueous of ammonia borane (AB) complex under ambient atmosphere at room temperature. The hydrolysis activation energy of Ru@SiO2 was estimated to be about 38.2 kJ mol(-1), which is lower than most of the reported activation energy values for the same reaction using many different Ru-based and other noble metal containing catalysts, indicating the superior catalytic performance of these core shell structured nanospheres. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available