Catalysis on singly dispersed bimetallic sites

Shiran Zhang, Luan Nguyen, Jin Xia Liang, Junjun Shan, Jingyue Liu, Anatoly I. Frenkel, Anitha Patlolla, Weixin Huang, Jun Li, Franklin Feng Tao

Research output: Contribution to journalArticle

110 Scopus citations

Abstract

A catalytic site typically consists of one or more atoms of a catalyst surface that arrange into a configuration offering a specific electronic structure for adsorbing or dissociating reactant molecules. The catalytic activity of adjacent bimetallic sites of metallic nanoparticles has been studied previously. An isolated bimetallic site supported on a non-metallic surface could exhibit a distinctly different catalytic performance owing to the cationic state of the singly dispersed bimetallic site and the minimized choices of binding configurations of a reactant molecule compared with continuously packed bimetallic sites. Here we report that isolated Rh<inf>1</inf>Co<inf>3</inf> bimetallic sites exhibit a distinctly different catalytic performance in reduction of nitric oxide with carbon monoxide at low temperature, resulting from strong adsorption of two nitric oxide molecules and a nitrous oxide intermediate on Rh<inf>1</inf>Co<inf>3</inf> sites and following a low-barrier pathway dissociation to dinitrogen and an oxygen atom. This observation suggests a method to develop catalysts with high selectivity.

Original languageEnglish (US)
Article number7938
JournalNature Communications
Volume6
DOIs
StatePublished - Aug 21 2015

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ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemistry(all)
  • Physics and Astronomy(all)

Cite this

Zhang, S., Nguyen, L., Liang, J. X., Shan, J., Liu, J., Frenkel, A. I., Patlolla, A., Huang, W., Li, J., & Tao, F. F. (2015). Catalysis on singly dispersed bimetallic sites. Nature Communications, 6, [7938]. https://doi.org/10.1038/ncomms8938