Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 38, Pages 25268-25278Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b07434
Keywords
mesoporous face-centered-cubic-In4Ni; bimetal catalysts; aqueous hydrazine dehydrogenation; solution plasma technique; ionic liquid
Funding
- National Nature Science Foundation of China [21376033]
- Scientific Research and Innovation Team in Universities of Sichuan Provincial Department of Education [15TD0009]
- Sichuan Youth Science and Technology Innovation Research Team Funding Scheme Grant [2013TD0005]
- Cultivating programme of middle aged backbone teachers Grant [HG0092]
- Cultivating programme for Excellent Innovation Team of Chengdu University of Technology [HY0084]
- Innovative Experimental Items for College Students of Sichuan Province Grant [SZH1106CX04]
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Mesoporous face-centered-cubic (fcc) In4Ni alloy nanorices (NRs) were successfully synthesized as superior catalysts for N2H4 dehydrogenation in aqueous solution via a facile solution plasma technique (SPT) in an ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]). This incorporation introduces basic sites for dehydrogenation. Also, the synthesis of In and Ni weakens the interactions among generated adspecies such as H-2 and NHx and surface metal atoms. Alongside their unique NR structure, the as-prepared fcc-In4Ni alloy NRs exhibited superior performance for N2H4 dehydrogenation in aqueous solution. The activation energy of the fcc-In4Ni alloy NRs was 38.9 +/- 1.0 kJ mol(-1). The NRs were also found to be stable for catalytic N2H4 dehydrogenation in aqueous solution, providing an average TOF value of 82.0 (mol of H-2 (mol of active In4Ni min)(-1)) over 30 h reaction. These fcc-In4Ni alloy NRs have demonstrated exceptional performance, which indicates that the construction, of hydrogen-producing systems from N2H4, capable of matching the performance of NaBH4 and NH3BH3 hydrogen-producing systems for fuel-cell applications, is a promising possibility.
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