Synthesis of transition metal nanoparticles deposited in KNBO3 and the evaluation of the catalytic effect on the evolution of hydrogen from NABH4

Authors

  • Tulho Martins dos Reis

    Universidade Federal de Viçosa - UFV

    Author

  • Aléxia Caroline de Castro Alves

    Universidade Federal de Viçosa - UFV

    https://orcid.org/0009-0001-6001-7475

    Author

  • Victor Nogueira da Silva

    Universidade Federal de Viçosa - UFV

    Author

  • Renata Pereira Moreira Lopes

    Universidade Federal de Viçosa - UFV

    Author

Keywords:
Hydrogen Evolution, Potassium Niobate, Nanoparticles, Sodium Borohydride
Abstract

From the hydrolysis of NaBH4, there is the evolution of H2, which is a spontaneous and kinetically slow process. Therefore, transition metal nanoparticles (NPs) deposited in KNbO3 can be used as catalysts. Thus, the objectives of the present work were the development of catalysts for the deposition of transition metal NPs in KNbO3 and the evaluation of the influence on the evolution of H2 from NaBH4. The synthesis of the support occurred via the hydrothermal route, while that of the NPs occurred via reduction of the precursor salt solution. Regarding the NPs evaluated (Pt, Pd, Ni, Au and Co), the best effects observed were for Pt and Ni. Regarding the bimetallic composition, the best effect was for the 1:3 composition (Ni:Pt, mol/mol). The process efficiency increased with increasing support dosage and temperature. It is concluded that it was possible to develop promising materials based on niobium, the largest world reserve of which is found in Brazil, for use in the evolution of hydrogen.

Author Biographies
  1. Tulho Martins dos Reis, Universidade Federal de Viçosa - UFV

    Mestrando em Agroquímica pela Universidade Federal de Viçosa (UFV). Desenvolve pesquisas relacionadas à catálise do boro-hidreto de sódio empregando nanopartículas de metais de transição e/ou nobres depositadas em niobato de potássio e no ensino de Química no Ensino Superior. Na UFV, ministrou aulas de Química Geral, Laboratório de Química Geral, Físico-Química I, Química Orgânica I e Laboratório de Química Orgânica I.

  2. Aléxia Caroline de Castro Alves, Universidade Federal de Viçosa - UFV

    Graduanda em Química pela Universidade Federal de Viçosa. É estagiária voluntária no Laboratório de Nanomateriais e Química Ambiental (LANAQUA). Desenvolve pesquisa relacionada à catálise da hidrólise do boro-hidreto de sódio na geração de hidrogênio combustível.

  3. Victor Nogueira da Silva, Universidade Federal de Viçosa - UFV

     Graduando em Química pela Universidade Federal de Viçosa. É bolsista de iniciação científica no Laboratório de Nanomateriais e Química Ambiental (LANAQUA). Desenvolve pesquisa relacionada à catálise da hidrólise do boro-hidreto de sódio na geração de hidrogênio combustível.

  4. Renata Pereira Moreira Lopes, Universidade Federal de Viçosa - UFV

    Possui doutorado em Química (UFMG/Universidad de Almería- 2012) e pós-doutorado na Université de Bordeaux (2020). É professora do Departamento de Químicada UFV. O foco das pesquisas está voltado para a degradação de poluentes por processos oxidativos avançados, processos redutivos envolvendo metais de valência zero, nano-reatores e no desenvolvimento de nanocatalisadores para emprego catalítico na evolução do hidrogênio a partir do borohidreto de sódio.

References

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Published
2023-12-15
Issue
Vol. 9 No. 6 (2023): Special Edition Chemistry Week of the North of Espírito Santo (SEQUINES)
Section
Edição Especial "Semana de Química do Norte do Espírito Santo
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How to Cite

Reis, T. M. dos, Alves, A. C. de C., Silva, V. N. da, & Lopes, R. P. M. (2023). Synthesis of transition metal nanoparticles deposited in KNBO3 and the evaluation of the catalytic effect on the evolution of hydrogen from NABH4. Brazilian Journal of Production Engineering, 9(6), 55-58. https://periodicos.ufes.br/bjpe/article/view/43287