Reduction of carbon dioxide during the synthesis of metal nano-particles in water

Irena Rusonik, Hurriyet Polat, Haim Cohen, Dan Meyerstein

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


An effort was made to synthesize "carbon-free" metal (Fe 0, Co0, Ni0) nano-particles via the reduction of their salts with BH4- in aqueous solutions. Surprisingly it was found that when the synthesis is carried out in the presence of CO2, e.g., in aerated solutions, the CO2 is catalytically reduced by BH4- on the surface of the metal particles. Carbon-free metals can be prepared by reduction under an inert atmosphere. Thus metal surfaces might have acted as catalysts for CO 2 fixation, probably via the initial formation of carbon clusters, in the reductive atmosphere in the prebiotic era.

Original languageEnglish
Pages (from-to)1266-1268
Number of pages3
JournalInorganic Chemistry Communications
Issue number9
StatePublished - 1 Sep 2003
Externally publishedYes

Bibliographical note

Funding Information:
This study was supported in part by a grant from the Budgeting and Planning Committee of The Council of Higher Education and the Israel Atomic Energy Commission. D.M. wishes to express his thanks to Mrs. Irene Evens for her ongoing interest and support.


  • Carbon dioxide
  • Metal nano-particles
  • Reduction
  • Sodium borohydride


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