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Preparation of iron±nickel catalysts by mechanical alloying

B.H. Zeifert, J. Salmones

2000encatalystsmechanical alloyingiron-nickelhydrogenationleaching

Abstract

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This study focuses on the preparation of Raney-type catalysts through a two-step process involving mechanical alloying (MA) and alkaline aluminum leaching. The primary objective was to explore the synthesis of skeletal nickel catalysts using MA, which is an innovative technique for producing alloys at room temperature. The methodology involved the creation of binary Al-Ni and ternary Al-Ni-Fe alloys from pure metallic powders, resulting in the formation of the intermetallic β-AlNi phase characterized by a fine microstructure. After aluminum leaching, the β-AlNi phase converted to the more stable face-centered cubic (fcc) nickel structure. Characterization of the catalysts was performed using atomic absorption (AA), X-ray diffraction (XRD), and Mössbauer spectroscopy (MS), complemented by textural studies. The findings demonstrate that the mechanical alloying process offers an efficient route to produce high-performance nickel catalysts with desirable structural properties. This opens new avenues for the application of these catalysts in hydrogenation processes and related chemical reactions.

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Cite This Work

@article{3f99acba-191d-4af4-8765-12402d714cc1,
  title={Preparation of iron±nickel catalysts by mechanical alloying},
  author={B.H. Zeifert and J. Salmones},
  year={2000},
  language={en}
}
TY  - JOUR
TI  - Preparation of iron±nickel catalysts by mechanical alloying
AU  - B.H. Zeifert
AU  - J. Salmones
PY  - 2000
LA  - en
ER  -

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