Methanolysis of ammonia borane using binder-free hierarchical Co@Ni metal-organic framework nanocolumn arrays catalyst for hydrogen generation

Dharman Ranjith Kumar, Samikannu Prabu, Kung Yuh Chiang, Tae Hwan Oh

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Ammonia borane (AB) is a potential material for chemical hydrogen storage because of its outstanding stability, high hydrogen density, and the development of highly effective hierarchical catalysts for AB hydrolysis. Herein, the hierarchical Co@Ni metal-organic framework (MOF) nanocolumn arrays (NCAs) on nickel foam (NF) were fabricated through a simple hydrothermal reaction, and the prepared catalysts were characterized using different techniques. The hierarchical Co@Ni-MOFNCA/NF acts as a catalyst for AB methanolysis for hydrogen production. The catalysts exhibited outstanding performance towards AB methanolysis with the TOF of TOF of 20.54 mol H2 mol catalyst−1 min−1. As a result, the activation energy of the Co@Ni-MOF NCA catalyst is 39.72 kJ mol−1 which is compared with some commercial solid support materials such as Al2O3 and AC. Additionally, the effects of nanocatalyst loading and temperatures were studied for the Co@Ni-MOF NCA catalyst. Further, a complete investigation proposes that the outstanding catalytic performance of the Co@Ni-MOF NCA catalyst could be attributed to the synergy between Co and Ni-MOF NCA.

Original languageEnglish
Pages (from-to)18134-18145
Number of pages12
JournalInternational Journal of Energy Research
Volume46
Issue number13
DOIs
StatePublished - 25 Oct 2022

Keywords

  • Co@Ni-MOF NCA
  • ammonia borane
  • hydrogen generation
  • methanolysis

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