Highly efficient dehydrogenation of formic acid in aqueous solution catalysed by an easily available water-soluble iridium(III) dihydride

G. Papp, G. Ölveti, H. Horváth, A. Kathó, F. Joó

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The new water-soluble cis-mer-[IrH2Cl(mtppms)3] (mtppms = monosulfonated triphenylphosphine) was employed as a catalyst for selective decomposition of formic acid to H2 + CO2 in aqueous solution at T = 30-100 °C. The easily synthesized compound showed high catalytic activity (TOF up to 298 000 h-1) and could be reused several times with no loss of activity (total TON = 67 650). A sharp maximum in the reaction rate was observed at pH = 3.75; its coincidence with the pKa of formic acid shows that both H+ or HCOOH and HCOO- play important roles in the reaction mechanism.

Original languageEnglish
Pages (from-to)14516-14519
Number of pages4
JournalDalton Transactions
Volume45
Issue number37
DOIs
Publication statusPublished - 2016

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formic acid
Iridium
Dehydrogenation
Water
Reaction rates
Catalyst activity
Decomposition
Catalysts

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Highly efficient dehydrogenation of formic acid in aqueous solution catalysed by an easily available water-soluble iridium(III) dihydride. / Papp, G.; Ölveti, G.; Horváth, H.; Kathó, A.; Joó, F.

In: Dalton Transactions, Vol. 45, No. 37, 2016, p. 14516-14519.

Research output: Contribution to journalArticle

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