Liquid|liquid electrochemical bicarbonate and carbonate capture facilitated by boronic acids

Chem Commun (Camb). 2011 Nov 21;47(43):12002-4. doi: 10.1039/c1cc15211d. Epub 2011 Oct 3.

Abstract

Reversible bicarbonate and carbonate liquid|liquid ion transfer processes from aqueous solution into an organic 4-(3-phenylpropyl)pyridine phase are driven electrochemically with TPPMn(III/II) and shown to be facilitated over a wide pH range by 2-naphthylboronic acid (bicarbonate transfer potential -0.08 V vs. SCE; binding constant K(AB) = 10(2) mol(-1) dm(3) and carbonate dianion transfer potential 0.07 V vs. SCE; binding constant K(AB2) = 2 × 10(10) mol(-2) dm(6)).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bicarbonates / chemistry
  • Boronic Acids / chemistry*
  • Carbonates / chemistry*
  • Electrochemical Techniques
  • Hydrogen-Ion Concentration
  • Oxidation-Reduction
  • Pyridines / chemistry

Substances

  • Bicarbonates
  • Boronic Acids
  • Carbonates
  • Pyridines
  • (4-(3-phenylpropyl)pyridine)