Trimetallic NiPtAg nanoparticles supported by SBA-15 for hydrogen production through hydrazine hydrate dehydrogenation reaction
Hydrazine hydrate (N2H4 center dot H2O) is one of the compounds that can be used to produce hydrogen through a dehydrogenation reaction. The use of trimetallic nanoparticles can increase the catalytic activity and selectivity of the hydrogen produced. Ordered mesoporous silica SBA-15 was synthesized...
| Published in: | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY |
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| Main Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
PERGAMON-ELSEVIER SCIENCE LTD
2024
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| Subjects: | |
| Online Access: | https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001171188200001 |
| Summary: | Hydrazine hydrate (N2H4 center dot H2O) is one of the compounds that can be used to produce hydrogen through a dehydrogenation reaction. The use of trimetallic nanoparticles can increase the catalytic activity and selectivity of the hydrogen produced. Ordered mesoporous silica SBA-15 was synthesized to be used as a support for NiPtAg trimetallic nanoparticles. NiPtAg/SBA-15 was synthesized from NiCl2.6H2O, K2PtCl6, AgNO3, and SBA-15 by wet impregnation method and then reduced by NaBH4. To determine the best variation of metal composition, optimization of the trimetallic composition was carried out. Ni0.6Pt0.2Ag0.2/SBA-15 catalyst demonstrates a good catalytic activity with selectivity of 94% and TOF of 321.9 h-1 at 343 K. The activation energy required by the Ni0.6Pt0.2Ag0.2/SBA-15 catalyst in the dehydrogenation reaction of hydrazine hydrate is 55.6 kJ/mol. |
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| ISSN: | 0360-3199 1879-3487 |
| DOI: | 10.1016/j.ijhydene.2024.01.068 |