Cr- and Ti-Based Spinels as Materials for Anodic Catalyst Support in PEM Electrolysis Cells: Assessing Corrosion Stability and Support Role in Catalyst Activity of Corrosion Stable Ceramics

F. Fenini; K. K. Hansen; C. Savaniu; J. T. S. Irvine; M. B. Mogensen

doi:10.1149/08511.0065ecst

Cr- and Ti-Based Spinels as Materials for Anodic Catalyst Support in PEM Electrolysis Cells: Assessing Corrosion Stability and Support Role in Catalyst Activity of Corrosion Stable Ceramics

F. Fenini, K. K. Hansen, C. Savaniu, J. T. S. Irvine, M. B. Mogensen

Department of Energy Conversion and Storage

University of St Andrews

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

This work aims to determine the stability of Cr- and Ti- based spinels as catalyst supports for oxygen evolution reaction (OER) catalyst in PEM electrolyzers (PEMECs). Different compositions of MCr2O4 (M=Ni, NiFe, Zn, Mg) and MTi2O4 (Li, Mg, Mn) have been synthesized by solid state synthesis. Pure and doped Cr-based spinels exhibit low conductivities at the operating temperatures of PEMECs (1.5 V vs SHE. LiTi2O4 is completely oxidized upon cycling up to 2.0 V vs SHE. Mixtures of IrO2/oxide support deposited on glassy carbon were tested toward OER, which showed a 10% higher absolute current at 2.0 V vs SHE in the case of IrO2/Cu-MnCr2O4 compared with pure IrO2.

Original language	English
Journal	E C S Transactions
Volume	85
Issue number	11
Pages (from-to)	65-77
ISSN	1938-5862
DOIs	https://doi.org/10.1149/08511.0065ecst
Publication status	Published - 2018

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title = "Cr- and Ti-Based Spinels as Materials for Anodic Catalyst Support in PEM Electrolysis Cells: Assessing Corrosion Stability and Support Role in Catalyst Activity of Corrosion Stable Ceramics",

abstract = "This work aims to determine the stability of Cr- and Ti- based spinels as catalyst supports for oxygen evolution reaction (OER) catalyst in PEM electrolyzers (PEMECs). Different compositions of MCr2O4 (M=Ni, NiFe, Zn, Mg) and MTi2O4 (Li, Mg, Mn) have been synthesized by solid state synthesis. Pure and doped Cr-based spinels exhibit low conductivities at the operating temperatures of PEMECs (1.5 V vs SHE. LiTi2O4 is completely oxidized upon cycling up to 2.0 V vs SHE. Mixtures of IrO2/oxide support deposited on glassy carbon were tested toward OER, which showed a 10\% higher absolute current at 2.0 V vs SHE in the case of IrO2/Cu-MnCr2O4 compared with pure IrO2.",

author = "F. Fenini and Hansen, \{K. K.\} and C. Savaniu and Irvine, \{J. T. S.\} and Mogensen, \{M. B.\}",

year = "2018",

doi = "10.1149/08511.0065ecst",

language = "English",

volume = "85",

pages = "65--77",

journal = "E C S Transactions",

issn = "1938-5862",

publisher = "The Electrochemical Society",

number = "11",

}

Cr- and Ti-Based Spinels as Materials for Anodic Catalyst Support in PEM Electrolysis Cells: Assessing Corrosion Stability and Support Role in Catalyst Activity of Corrosion Stable Ceramics. / Fenini, F.; Hansen, K. K.; Savaniu, C. et al.
In: E C S Transactions, Vol. 85, No. 11, 2018, p. 65-77.

Research output: Contribution to journal › Journal article › Research › peer-review

TY - JOUR

T1 - Cr- and Ti-Based Spinels as Materials for Anodic Catalyst Support in PEM Electrolysis Cells: Assessing Corrosion Stability and Support Role in Catalyst Activity of Corrosion Stable Ceramics

AU - Fenini, F.

AU - Hansen, K. K.

AU - Savaniu, C.

AU - Irvine, J. T. S.

AU - Mogensen, M. B.

PY - 2018

Y1 - 2018

N2 - This work aims to determine the stability of Cr- and Ti- based spinels as catalyst supports for oxygen evolution reaction (OER) catalyst in PEM electrolyzers (PEMECs). Different compositions of MCr2O4 (M=Ni, NiFe, Zn, Mg) and MTi2O4 (Li, Mg, Mn) have been synthesized by solid state synthesis. Pure and doped Cr-based spinels exhibit low conductivities at the operating temperatures of PEMECs (1.5 V vs SHE. LiTi2O4 is completely oxidized upon cycling up to 2.0 V vs SHE. Mixtures of IrO2/oxide support deposited on glassy carbon were tested toward OER, which showed a 10% higher absolute current at 2.0 V vs SHE in the case of IrO2/Cu-MnCr2O4 compared with pure IrO2.

AB - This work aims to determine the stability of Cr- and Ti- based spinels as catalyst supports for oxygen evolution reaction (OER) catalyst in PEM electrolyzers (PEMECs). Different compositions of MCr2O4 (M=Ni, NiFe, Zn, Mg) and MTi2O4 (Li, Mg, Mn) have been synthesized by solid state synthesis. Pure and doped Cr-based spinels exhibit low conductivities at the operating temperatures of PEMECs (1.5 V vs SHE. LiTi2O4 is completely oxidized upon cycling up to 2.0 V vs SHE. Mixtures of IrO2/oxide support deposited on glassy carbon were tested toward OER, which showed a 10% higher absolute current at 2.0 V vs SHE in the case of IrO2/Cu-MnCr2O4 compared with pure IrO2.

U2 - 10.1149/08511.0065ecst

DO - 10.1149/08511.0065ecst

M3 - Journal article

SN - 1938-5862

VL - 85

SP - 65

EP - 77

JO - E C S Transactions

JF - E C S Transactions

IS - 11

ER -

Cr- and Ti-Based Spinels as Materials for Anodic Catalyst Support in PEM Electrolysis Cells: Assessing Corrosion Stability and Support Role in Catalyst Activity of Corrosion Stable Ceramics

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