Crystalline nickel manganese antimonate as a stable water-oxidation catalyst in aqueous 1.0 M H2SO4

Ivan A. Moreno-Hernandez, Clara A. Macfarland, Carlos G. Read, Kimberly M. Papadantonakis, Bruce S. Brunschwig, Nathan S Lewis

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Water oxidation is a required half-reaction for electrochemical water splitting. To date, the only well-established active oxygen-evolution catalysts stable under operating conditions and at rest in acidic aqueous media contain Ru or Ir, two of the scarcest non-radioactive elements on Earth. We report herein a nickel-manganese antimonate electrocatalyst with a rutile-type crystal structure that requires an initial voltammetric overpotential of 672 ± 9 mV to catalyze the oxidation of water to O2(g) at a rate corresponding to 10 mA cm-2 of current density when operated in contact with 1.0 M sulfuric acid. Under galvanostatic control, the overpotential initially rose from 670 mV but was then stable at 735 ± 10 mV for 168 h of continuous operation at 10 mA cm-2. We additionally provide an in-depth evaluation of the stability of the nickel-manganese antimonate electrocatalyst, including elemental characterization of the surface, bulk, and electrolyte before and after electrochemical operation.

Original languageEnglish
Pages (from-to)2103-2108
Number of pages6
JournalEnergy and Environmental Science
Volume10
Issue number10
DOIs
Publication statusPublished - Oct 1 2017

Fingerprint

Manganese
Nickel
manganese
nickel
Electrocatalysts
catalyst
Crystalline materials
oxidation
Oxidation
Catalysts
Water
rutile
Sulfuric acid
crystal structure
sulfuric acid
water
electrolyte
Electrolytes
Reactive Oxygen Species
Current density

ASJC Scopus subject areas

  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Pollution

Cite this

Moreno-Hernandez, I. A., Macfarland, C. A., Read, C. G., Papadantonakis, K. M., Brunschwig, B. S., & Lewis, N. S. (2017). Crystalline nickel manganese antimonate as a stable water-oxidation catalyst in aqueous 1.0 M H2SO4 Energy and Environmental Science, 10(10), 2103-2108. https://doi.org/10.1039/c7ee01486d

Crystalline nickel manganese antimonate as a stable water-oxidation catalyst in aqueous 1.0 M H2SO4 . / Moreno-Hernandez, Ivan A.; Macfarland, Clara A.; Read, Carlos G.; Papadantonakis, Kimberly M.; Brunschwig, Bruce S.; Lewis, Nathan S.

In: Energy and Environmental Science, Vol. 10, No. 10, 01.10.2017, p. 2103-2108.

Research output: Contribution to journalArticle

Moreno-Hernandez, IA, Macfarland, CA, Read, CG, Papadantonakis, KM, Brunschwig, BS & Lewis, NS 2017, 'Crystalline nickel manganese antimonate as a stable water-oxidation catalyst in aqueous 1.0 M H2SO4 ', Energy and Environmental Science, vol. 10, no. 10, pp. 2103-2108. https://doi.org/10.1039/c7ee01486d
Moreno-Hernandez, Ivan A. ; Macfarland, Clara A. ; Read, Carlos G. ; Papadantonakis, Kimberly M. ; Brunschwig, Bruce S. ; Lewis, Nathan S. / Crystalline nickel manganese antimonate as a stable water-oxidation catalyst in aqueous 1.0 M H2SO4 In: Energy and Environmental Science. 2017 ; Vol. 10, No. 10. pp. 2103-2108.
@article{99c7a8819639479daa35be2835eb1675,
title = "Crystalline nickel manganese antimonate as a stable water-oxidation catalyst in aqueous 1.0 M H2SO4",
abstract = "Water oxidation is a required half-reaction for electrochemical water splitting. To date, the only well-established active oxygen-evolution catalysts stable under operating conditions and at rest in acidic aqueous media contain Ru or Ir, two of the scarcest non-radioactive elements on Earth. We report herein a nickel-manganese antimonate electrocatalyst with a rutile-type crystal structure that requires an initial voltammetric overpotential of 672 ± 9 mV to catalyze the oxidation of water to O2(g) at a rate corresponding to 10 mA cm-2 of current density when operated in contact with 1.0 M sulfuric acid. Under galvanostatic control, the overpotential initially rose from 670 mV but was then stable at 735 ± 10 mV for 168 h of continuous operation at 10 mA cm-2. We additionally provide an in-depth evaluation of the stability of the nickel-manganese antimonate electrocatalyst, including elemental characterization of the surface, bulk, and electrolyte before and after electrochemical operation.",
author = "Moreno-Hernandez, {Ivan A.} and Macfarland, {Clara A.} and Read, {Carlos G.} and Papadantonakis, {Kimberly M.} and Brunschwig, {Bruce S.} and Lewis, {Nathan S}",
year = "2017",
month = "10",
day = "1",
doi = "10.1039/c7ee01486d",
language = "English",
volume = "10",
pages = "2103--2108",
journal = "Energy and Environmental Science",
issn = "1754-5692",
publisher = "Royal Society of Chemistry",
number = "10",

}

TY - JOUR

T1 - Crystalline nickel manganese antimonate as a stable water-oxidation catalyst in aqueous 1.0 M H2SO4

AU - Moreno-Hernandez, Ivan A.

AU - Macfarland, Clara A.

AU - Read, Carlos G.

AU - Papadantonakis, Kimberly M.

AU - Brunschwig, Bruce S.

AU - Lewis, Nathan S

PY - 2017/10/1

Y1 - 2017/10/1

N2 - Water oxidation is a required half-reaction for electrochemical water splitting. To date, the only well-established active oxygen-evolution catalysts stable under operating conditions and at rest in acidic aqueous media contain Ru or Ir, two of the scarcest non-radioactive elements on Earth. We report herein a nickel-manganese antimonate electrocatalyst with a rutile-type crystal structure that requires an initial voltammetric overpotential of 672 ± 9 mV to catalyze the oxidation of water to O2(g) at a rate corresponding to 10 mA cm-2 of current density when operated in contact with 1.0 M sulfuric acid. Under galvanostatic control, the overpotential initially rose from 670 mV but was then stable at 735 ± 10 mV for 168 h of continuous operation at 10 mA cm-2. We additionally provide an in-depth evaluation of the stability of the nickel-manganese antimonate electrocatalyst, including elemental characterization of the surface, bulk, and electrolyte before and after electrochemical operation.

AB - Water oxidation is a required half-reaction for electrochemical water splitting. To date, the only well-established active oxygen-evolution catalysts stable under operating conditions and at rest in acidic aqueous media contain Ru or Ir, two of the scarcest non-radioactive elements on Earth. We report herein a nickel-manganese antimonate electrocatalyst with a rutile-type crystal structure that requires an initial voltammetric overpotential of 672 ± 9 mV to catalyze the oxidation of water to O2(g) at a rate corresponding to 10 mA cm-2 of current density when operated in contact with 1.0 M sulfuric acid. Under galvanostatic control, the overpotential initially rose from 670 mV but was then stable at 735 ± 10 mV for 168 h of continuous operation at 10 mA cm-2. We additionally provide an in-depth evaluation of the stability of the nickel-manganese antimonate electrocatalyst, including elemental characterization of the surface, bulk, and electrolyte before and after electrochemical operation.

UR - http://www.scopus.com/inward/record.url?scp=85031491695&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85031491695&partnerID=8YFLogxK

U2 - 10.1039/c7ee01486d

DO - 10.1039/c7ee01486d

M3 - Article

VL - 10

SP - 2103

EP - 2108

JO - Energy and Environmental Science

JF - Energy and Environmental Science

SN - 1754-5692

IS - 10

ER -