A porous TiC supported nanostructured complex metal oxide ceramic electrode for oxygen evolution reaction

Jianye Yang; Kai Wu; Xing Li; Xuejiao Wang; Guangguang Pi; Wei Fang; Qingyu Yan

doi:10.1016/j.ceramint.2023.05.275

A porous TiC supported nanostructured complex metal oxide ceramic electrode for oxygen evolution reaction

Jianye Yang, Kai Wu, Xing Li^*, Xuejiao Wang, Guangguang Pi, Wei Fang^*, Qingyu Yan

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

Developing low-cost and high-performance electrodes with a customized size is greatly demanded to satisfy the industrial requirement of electrochemical water splitting. To meet this challenge, a novel binder-free electrode consisted of perovskite Sr₂Fe_1.4Ni_0.1Mo_0.5O_6-δ (SFNMO) nanofibers or spinel NiCo₂O₄ (NCO) nanosheets tightly bonded on a porous TiC substrate has been developed to catalyze the oxygen evolution reaction in alkaline water electrolysis. The optimal SFNMO/TiC electrode requires a stable overpotential of ∼380 mV to achieve a current density of 30 mA cm⁻² within 20 h of operation. The competitive OER performance of such electrode can be attributed to its unique large finger-like straight pore structure, which favors the mass transfer of electrolyte solution as well as produced oxygen bubbles. Furthermore, the strong adhesion between metal oxide catalysts and TiC substrate is derived from the interfacial reaction (form a TiC_xO_y solid solution), thus lowering the contact resistance of catalyst/substrate interface and promoting the charge transfer kinetics of electrodes, which leads to an outstanding catalytic performance.

Original language	English
Pages (from-to)	27662-27667
Number of pages	6
Journal	Ceramics International
Volume	49
Issue number	16
DOIs	https://doi.org/10.1016/j.ceramint.2023.05.275
Publication status	Published - Aug 15 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Ltd and Techna Group S.r.l.

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

Keywords

Ceramic electrode
Electrocatalyst
Oxygen evolution reaction
Perovskite/spinel oxide
TiC substrate

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ceramint.2023.05.275

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title = "A porous TiC supported nanostructured complex metal oxide ceramic electrode for oxygen evolution reaction",

abstract = "Developing low-cost and high-performance electrodes with a customized size is greatly demanded to satisfy the industrial requirement of electrochemical water splitting. To meet this challenge, a novel binder-free electrode consisted of perovskite Sr2Fe1.4Ni0.1Mo0.5O6-δ (SFNMO) nanofibers or spinel NiCo2O4 (NCO) nanosheets tightly bonded on a porous TiC substrate has been developed to catalyze the oxygen evolution reaction in alkaline water electrolysis. The optimal SFNMO/TiC electrode requires a stable overpotential of ∼380 mV to achieve a current density of 30 mA cm−2 within 20 h of operation. The competitive OER performance of such electrode can be attributed to its unique large finger-like straight pore structure, which favors the mass transfer of electrolyte solution as well as produced oxygen bubbles. Furthermore, the strong adhesion between metal oxide catalysts and TiC substrate is derived from the interfacial reaction (form a TiCxOy solid solution), thus lowering the contact resistance of catalyst/substrate interface and promoting the charge transfer kinetics of electrodes, which leads to an outstanding catalytic performance.",

keywords = "Ceramic electrode, Electrocatalyst, Oxygen evolution reaction, Perovskite/spinel oxide, TiC substrate",

author = "Jianye Yang and Kai Wu and Xing Li and Xuejiao Wang and Guangguang Pi and Wei Fang and Qingyu Yan",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd and Techna Group S.r.l.",

year = "2023",

month = aug,

day = "15",

doi = "10.1016/j.ceramint.2023.05.275",

language = "English",

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TY - JOUR

T1 - A porous TiC supported nanostructured complex metal oxide ceramic electrode for oxygen evolution reaction

AU - Yang, Jianye

AU - Wu, Kai

AU - Li, Xing

AU - Wang, Xuejiao

AU - Pi, Guangguang

AU - Fang, Wei

AU - Yan, Qingyu

PY - 2023/8/15

Y1 - 2023/8/15

N2 - Developing low-cost and high-performance electrodes with a customized size is greatly demanded to satisfy the industrial requirement of electrochemical water splitting. To meet this challenge, a novel binder-free electrode consisted of perovskite Sr2Fe1.4Ni0.1Mo0.5O6-δ (SFNMO) nanofibers or spinel NiCo2O4 (NCO) nanosheets tightly bonded on a porous TiC substrate has been developed to catalyze the oxygen evolution reaction in alkaline water electrolysis. The optimal SFNMO/TiC electrode requires a stable overpotential of ∼380 mV to achieve a current density of 30 mA cm−2 within 20 h of operation. The competitive OER performance of such electrode can be attributed to its unique large finger-like straight pore structure, which favors the mass transfer of electrolyte solution as well as produced oxygen bubbles. Furthermore, the strong adhesion between metal oxide catalysts and TiC substrate is derived from the interfacial reaction (form a TiCxOy solid solution), thus lowering the contact resistance of catalyst/substrate interface and promoting the charge transfer kinetics of electrodes, which leads to an outstanding catalytic performance.

AB - Developing low-cost and high-performance electrodes with a customized size is greatly demanded to satisfy the industrial requirement of electrochemical water splitting. To meet this challenge, a novel binder-free electrode consisted of perovskite Sr2Fe1.4Ni0.1Mo0.5O6-δ (SFNMO) nanofibers or spinel NiCo2O4 (NCO) nanosheets tightly bonded on a porous TiC substrate has been developed to catalyze the oxygen evolution reaction in alkaline water electrolysis. The optimal SFNMO/TiC electrode requires a stable overpotential of ∼380 mV to achieve a current density of 30 mA cm−2 within 20 h of operation. The competitive OER performance of such electrode can be attributed to its unique large finger-like straight pore structure, which favors the mass transfer of electrolyte solution as well as produced oxygen bubbles. Furthermore, the strong adhesion between metal oxide catalysts and TiC substrate is derived from the interfacial reaction (form a TiCxOy solid solution), thus lowering the contact resistance of catalyst/substrate interface and promoting the charge transfer kinetics of electrodes, which leads to an outstanding catalytic performance.

KW - Ceramic electrode

KW - Electrocatalyst

KW - Oxygen evolution reaction

KW - Perovskite/spinel oxide

KW - TiC substrate

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M3 - Article

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VL - 49

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JF - Ceramics International

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ER -

A porous TiC supported nanostructured complex metal oxide ceramic electrode for oxygen evolution reaction

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

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