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Title: Distant protonated pyridine groups in water-soluble iron porphyrin electrocatalysts promote selective oxygen reduction to water

Abstract

Fe(III)-meso-tetra(pyridyl)porphines are selective electrocatalysts for the reduction of dioxygen to water in aqueous acidic solution. The 2-pyridyl derivatives, both the triflate and chloride salts, are more selective than the isomeric 4-pyridyl complexes. The improved selectivity of is ascribed to the inward-pointing pyridinium groups acting as intramolecular proton relays. This research was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1054843
Report Number(s):
PNNL-SA-89163
KC0307010
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Chemical Communications, 48(90):11100-11102
Additional Journal Information:
Journal Name: Chemical Communications, 48(90):11100-11102
Country of Publication:
United States
Language:
English

Citation Formats

Matson, Benjamin D., Carver, Colin T., Von Ruden, Amber L., Yang, Jenny Y., Raugei, Simone, and Mayer, James M. Distant protonated pyridine groups in water-soluble iron porphyrin electrocatalysts promote selective oxygen reduction to water. United States: N. p., 2012. Web. doi:10.1039/c2cc35576k.
Matson, Benjamin D., Carver, Colin T., Von Ruden, Amber L., Yang, Jenny Y., Raugei, Simone, & Mayer, James M. Distant protonated pyridine groups in water-soluble iron porphyrin electrocatalysts promote selective oxygen reduction to water. United States. doi:10.1039/c2cc35576k.
Matson, Benjamin D., Carver, Colin T., Von Ruden, Amber L., Yang, Jenny Y., Raugei, Simone, and Mayer, James M. Thu . "Distant protonated pyridine groups in water-soluble iron porphyrin electrocatalysts promote selective oxygen reduction to water". United States. doi:10.1039/c2cc35576k.
@article{osti_1054843,
title = {Distant protonated pyridine groups in water-soluble iron porphyrin electrocatalysts promote selective oxygen reduction to water},
author = {Matson, Benjamin D. and Carver, Colin T. and Von Ruden, Amber L. and Yang, Jenny Y. and Raugei, Simone and Mayer, James M.},
abstractNote = {Fe(III)-meso-tetra(pyridyl)porphines are selective electrocatalysts for the reduction of dioxygen to water in aqueous acidic solution. The 2-pyridyl derivatives, both the triflate and chloride salts, are more selective than the isomeric 4-pyridyl complexes. The improved selectivity of is ascribed to the inward-pointing pyridinium groups acting as intramolecular proton relays. This research was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.},
doi = {10.1039/c2cc35576k},
journal = {Chemical Communications, 48(90):11100-11102},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}