Oxygen deficient layered double perovskite as an active cathode for CO2 electrolysis using a solid oxide conductor

Tae Ho Shin; Jae-Ha Myung; Maarten Christiaan Verbraeken; Guntae Kim; John T.S. Irvine

doi:10.1039/C5FD00025D

Oxygen deficient layered double perovskite as an active cathode for CO₂ electrolysis using a solid oxide conductor

Tae Ho Shin, Jae-Ha Myung, Maarten Christiaan Verbraeken, Guntae Kim, John T.S. Irvine

Research output: Contribution to journal › Article › peer-review

Abstract

A-site ordered PrBaMn₂O_5+δ was investigated as a potential cathode for CO₂ electrolysis using a La_0.9Sr_0.1Ga_0.8Mg_0.2O₃ (LSGM) electrolyte. The A-site ordered layered double perovskite, PrBaMn₂O_5+δ, was found to enhance electrocatalytic activity for CO₂ reduction on the cathode side since it supports mixed valent transition metal cations such as Mn, which could provide high electrical conductivity and maintain a large oxygen vacancy content, contributing to fast oxygen ion diffusion. It was found that during the oxidation of the reduced PrBaMn₂O_5+δ (O5 phase) to PrBaMn₂O_6−δ (O6 phase), a reversible oxygen switchover in the lattice takes place. In addition, here the successful CO₂ electrolysis was measured in LSGM electrolyte with this novel oxide electrode. It was found that this PrBaMn₂O_5+δ, layered perovskite cathode exhibits a performance with a current density of 0.85 A cm⁻² at 1.5 V and 850 °C and the electrochemical properties were also evaluated by impedance spectroscopy.

Original language	English
Journal	Faraday Discussions
Volume	In press
Early online date	26 Mar 2015
DOIs	https://doi.org/10.1039/C5FD00025D
Publication status	Published - 2015

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10.1039/C5FD00025D

Irvine_2015_FD_Oxygen_CC
Copyright 2015 the Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (http://creativecommons.org/licenses/by/3.0/).
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Energy Materials Discovery: Energy Materials Discovery Characterisation and Application
Irvine, J. T. S. (PI), Cassidy, M. (CoI), Connor, P. A. (CoI), Savaniu, C. D. (CoI) & Zhou, W. (CoI)
EPSRC
7/01/13 → 6/01/18
Project: Standard
Multiscale in situ characterisation: Multiscale in situ characterisation of degradation and reactivity in solid oxide fuel cells
Savaniu, C. D. (PI) & Irvine, J. T. S. (CoI)
EPSRC
27/03/12 → 26/09/15
Project: Standard
Crossing Boundaries in Energy Storage: Crossing Boundaries in Energy Storage
Bruce, FRS, P. (PI)
EPSRC
1/08/11 → 31/07/15
Project: Standard

Cite this

@article{91bdd57414224c93bbd0f7728f1e4610,

title = "Oxygen deficient layered double perovskite as an active cathode for CO2 electrolysis using a solid oxide conductor",

abstract = "A-site ordered PrBaMn2O5+δ was investigated as a potential cathode for CO2 electrolysis using a La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) electrolyte. The A-site ordered layered double perovskite, PrBaMn2O5+δ, was found to enhance electrocatalytic activity for CO2 reduction on the cathode side since it supports mixed valent transition metal cations such as Mn, which could provide high electrical conductivity and maintain a large oxygen vacancy content, contributing to fast oxygen ion diffusion. It was found that during the oxidation of the reduced PrBaMn2O5+δ (O5 phase) to PrBaMn2O6−δ (O6 phase), a reversible oxygen switchover in the lattice takes place. In addition, here the successful CO2 electrolysis was measured in LSGM electrolyte with this novel oxide electrode. It was found that this PrBaMn2O5+δ, layered perovskite cathode exhibits a performance with a current density of 0.85 A cm−2 at 1.5 V and 850 °C and the electrochemical properties were also evaluated by impedance spectroscopy.",

author = "Shin, {Tae Ho} and Jae-Ha Myung and Verbraeken, {Maarten Christiaan} and Guntae Kim and Irvine, {John T.S.}",

note = "The authors thank EPSRC (EP/I022570/1, EP/K015540/1, EP/I038950/1) and the Royal Society (Wolfson Research Merit award) for support. ",

year = "2015",

doi = "10.1039/C5FD00025D",

language = "English",

volume = "In press",

journal = "Faraday Discussions",

issn = "1359-6640",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Oxygen deficient layered double perovskite as an active cathode for CO2 electrolysis using a solid oxide conductor

AU - Shin, Tae Ho

AU - Myung, Jae-Ha

AU - Verbraeken, Maarten Christiaan

AU - Kim, Guntae

AU - Irvine, John T.S.

N1 - The authors thank EPSRC (EP/I022570/1, EP/K015540/1, EP/I038950/1) and the Royal Society (Wolfson Research Merit award) for support.

PY - 2015

Y1 - 2015

N2 - A-site ordered PrBaMn2O5+δ was investigated as a potential cathode for CO2 electrolysis using a La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) electrolyte. The A-site ordered layered double perovskite, PrBaMn2O5+δ, was found to enhance electrocatalytic activity for CO2 reduction on the cathode side since it supports mixed valent transition metal cations such as Mn, which could provide high electrical conductivity and maintain a large oxygen vacancy content, contributing to fast oxygen ion diffusion. It was found that during the oxidation of the reduced PrBaMn2O5+δ (O5 phase) to PrBaMn2O6−δ (O6 phase), a reversible oxygen switchover in the lattice takes place. In addition, here the successful CO2 electrolysis was measured in LSGM electrolyte with this novel oxide electrode. It was found that this PrBaMn2O5+δ, layered perovskite cathode exhibits a performance with a current density of 0.85 A cm−2 at 1.5 V and 850 °C and the electrochemical properties were also evaluated by impedance spectroscopy.

AB - A-site ordered PrBaMn2O5+δ was investigated as a potential cathode for CO2 electrolysis using a La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) electrolyte. The A-site ordered layered double perovskite, PrBaMn2O5+δ, was found to enhance electrocatalytic activity for CO2 reduction on the cathode side since it supports mixed valent transition metal cations such as Mn, which could provide high electrical conductivity and maintain a large oxygen vacancy content, contributing to fast oxygen ion diffusion. It was found that during the oxidation of the reduced PrBaMn2O5+δ (O5 phase) to PrBaMn2O6−δ (O6 phase), a reversible oxygen switchover in the lattice takes place. In addition, here the successful CO2 electrolysis was measured in LSGM electrolyte with this novel oxide electrode. It was found that this PrBaMn2O5+δ, layered perovskite cathode exhibits a performance with a current density of 0.85 A cm−2 at 1.5 V and 850 °C and the electrochemical properties were also evaluated by impedance spectroscopy.

U2 - 10.1039/C5FD00025D

DO - 10.1039/C5FD00025D

M3 - Article

SN - 1359-6640

VL - In press

JO - Faraday Discussions

JF - Faraday Discussions

ER -

Oxygen deficient layered double perovskite as an active cathode for CO2 electrolysis using a solid oxide conductor

Abstract

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Projects

Energy Materials Discovery: Energy Materials Discovery Characterisation and Application

Multiscale in situ characterisation: Multiscale in situ characterisation of degradation and reactivity in solid oxide fuel cells

Crossing Boundaries in Energy Storage: Crossing Boundaries in Energy Storage

Cite this

Oxygen deficient layered double perovskite as an active cathode for CO₂ electrolysis using a solid oxide conductor