Nickel Confined in the Interlayer Region of Birnessite: an Active Electrocatalyst for Water Oxidation

Akila C. Thenuwara; Elizabeth B. Cerkez; Samantha L. Shumlas; Nuwan H. Attanayake; Ian G. McKendry; Laszlo Frazer; Eric Borguet; Qing Kang; Richard C. Remsing; Michael L. Klein; Michael J. Zdilla; Daniel R. Strongin

doi:10.1002/anie.201601935

Nickel Confined in the Interlayer Region of Birnessite: an Active Electrocatalyst for Water Oxidation

Akila C. Thenuwara, Elizabeth B. Cerkez, Samantha L. Shumlas, Nuwan H. Attanayake, Ian G. McKendry, Laszlo Frazer, Eric Borguet, Qing Kang, Richard C. Remsing, Michael L. Klein, Michael J. Zdilla, Daniel R. Strongin

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124 Citations (Scopus)

Abstract

We report a synthetic method to enhance the electrocatalytic activity of birnessite for the oxygen evolution reaction (OER) by intercalating Ni²⁺ions into the interlayer region. Electrocatalytic studies showed that nickel (7.7 atomic %)-intercalated birnessite exhibits an overpotential (η) of 400 mV for OER at an anodic current of 10 mA cm⁻². This η is significantly lower than the η values for birnessite (η≈700 mV) and the active OER catalyst β-Ni(OH)₂(η≈550 mV). Molecular dynamics simulations suggest that a competition among the interactions between the nickel cation, water, and birnessite promote redox chemistry in the spatially confined interlayer region.

Original language	English
Pages (from-to)	10381-10385
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	35
DOIs	https://doi.org/10.1002/anie.201601935
Publication status	Published - 2016
Externally published	Yes

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Thenuwara, A. C., Cerkez, E. B., Shumlas, S. L., Attanayake, N. H., McKendry, I. G., Frazer, L., Borguet, E., Kang, Q., Remsing, R. C., Klein, M. L., Zdilla, M. J., & Strongin, D. R. (2016). Nickel Confined in the Interlayer Region of Birnessite: an Active Electrocatalyst for Water Oxidation. Angewandte Chemie - International Edition, 55(35), 10381-10385. https://doi.org/10.1002/anie.201601935

@article{d661f2eaa22443e9a01989152e6c258b,

title = "Nickel Confined in the Interlayer Region of Birnessite: an Active Electrocatalyst for Water Oxidation",

abstract = "We report a synthetic method to enhance the electrocatalytic activity of birnessite for the oxygen evolution reaction (OER) by intercalating Ni2+ions into the interlayer region. Electrocatalytic studies showed that nickel (7.7 atomic %)-intercalated birnessite exhibits an overpotential (η) of 400 mV for OER at an anodic current of 10 mA cm−2. This η is significantly lower than the η values for birnessite (η≈700 mV) and the active OER catalyst β-Ni(OH)2(η≈550 mV). Molecular dynamics simulations suggest that a competition among the interactions between the nickel cation, water, and birnessite promote redox chemistry in the spatially confined interlayer region.",

author = "Thenuwara, {Akila C.} and Cerkez, {Elizabeth B.} and Shumlas, {Samantha L.} and Attanayake, {Nuwan H.} and McKendry, {Ian G.} and Laszlo Frazer and Eric Borguet and Qing Kang and Remsing, {Richard C.} and Klein, {Michael L.} and Zdilla, {Michael J.} and Strongin, {Daniel R.}",

year = "2016",

doi = "10.1002/anie.201601935",

language = "English",

volume = "55",

pages = "10381--10385",

journal = "Angewandte Chemie - International Edition",

issn = "1433-7851",

publisher = "Wiley-Blackwell",

number = "35",

}

Thenuwara, AC, Cerkez, EB, Shumlas, SL, Attanayake, NH, McKendry, IG, Frazer, L, Borguet, E, Kang, Q, Remsing, RC, Klein, ML, Zdilla, MJ & Strongin, DR 2016, 'Nickel Confined in the Interlayer Region of Birnessite: an Active Electrocatalyst for Water Oxidation', Angewandte Chemie - International Edition, vol. 55, no. 35, pp. 10381-10385. https://doi.org/10.1002/anie.201601935

TY - JOUR

T1 - Nickel Confined in the Interlayer Region of Birnessite

T2 - an Active Electrocatalyst for Water Oxidation

AU - Thenuwara, Akila C.

AU - Cerkez, Elizabeth B.

AU - Shumlas, Samantha L.

AU - Attanayake, Nuwan H.

AU - McKendry, Ian G.

AU - Frazer, Laszlo

AU - Borguet, Eric

AU - Kang, Qing

AU - Remsing, Richard C.

AU - Klein, Michael L.

AU - Zdilla, Michael J.

AU - Strongin, Daniel R.

PY - 2016

Y1 - 2016

N2 - We report a synthetic method to enhance the electrocatalytic activity of birnessite for the oxygen evolution reaction (OER) by intercalating Ni2+ions into the interlayer region. Electrocatalytic studies showed that nickel (7.7 atomic %)-intercalated birnessite exhibits an overpotential (η) of 400 mV for OER at an anodic current of 10 mA cm−2. This η is significantly lower than the η values for birnessite (η≈700 mV) and the active OER catalyst β-Ni(OH)2(η≈550 mV). Molecular dynamics simulations suggest that a competition among the interactions between the nickel cation, water, and birnessite promote redox chemistry in the spatially confined interlayer region.

AB - We report a synthetic method to enhance the electrocatalytic activity of birnessite for the oxygen evolution reaction (OER) by intercalating Ni2+ions into the interlayer region. Electrocatalytic studies showed that nickel (7.7 atomic %)-intercalated birnessite exhibits an overpotential (η) of 400 mV for OER at an anodic current of 10 mA cm−2. This η is significantly lower than the η values for birnessite (η≈700 mV) and the active OER catalyst β-Ni(OH)2(η≈550 mV). Molecular dynamics simulations suggest that a competition among the interactions between the nickel cation, water, and birnessite promote redox chemistry in the spatially confined interlayer region.

UR - http://www.scopus.com/inward/record.url?scp=84966454978&partnerID=8YFLogxK

U2 - 10.1002/anie.201601935

DO - 10.1002/anie.201601935

M3 - Article

SN - 1433-7851

VL - 55

SP - 10381

EP - 10385

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 35

ER -

Nickel Confined in the Interlayer Region of Birnessite: an Active Electrocatalyst for Water Oxidation

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