Trimetallic NiPtAg nanoparticles supported by SBA-15 for hydrogen production through hydrazine hydrate dehydrogenation reaction

• Published in: International Journal of Hydrogen Energy
• Main Author: Akbar Z.A.; Situmorang S.V.; Yati I.; Yunarti R.T.; Surip S.N.; Ridwan M.
• Format: Article
• Language: English
• Published: Elsevier Ltd 2024
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85183181051&doi=10.1016%2fj.ijhydene.2024.01.068&partnerID=40&md5=9bec6b2f0ecf7072536a503a97bcca4b

Hydrazine hydrate (N2H4·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. © 2024 Hydrogen Energy Publications LLC