CO2 hydrogenation catalysts with deprotonated picolinamide ligands

Ryoichi Kanega, Naoya Onishi, David J. Szalda, Mehmed Z. Ertem, James T. Muckerman, Etsuko Fujita, Yuichiro Himeda

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


In an effort to design concepts for highly active catalysts for the hydrogenation of CO2 to formate in basic water, we have prepared several catalysts with picolinic acid, picolinamide, and its derivatives, and we investigated their catalytic activity. The CO2 hydrogenation catalyst having a 4-hydroxy-N-methylpicolina-midate ligand exhibited excellent activity even under ambient conditions (0.1 MPa, 25 °C) in basic water, exhibiting a TON of 14700, a TOF of 167 h-1, and producing a 0.64 M formate concentration. Its high catalytic activity originates from strong electron donation by the anionic amide moiety in addition to the phenolic O- functionality.

Original languageEnglish
Pages (from-to)6426-6429
Number of pages4
JournalACS Catalysis
Issue number10
Publication statusPublished - Oct 6 2017


  • CO hydrogenation
  • DFT calculations
  • Deprotonated picolinamide ligand
  • Formate production
  • Hydrogen storage
  • Water-soluble Ir catalysts

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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