The Tunability of Oxygen Evolution Reaction in Flexible Van der Waals Manganite Membrane

Huan Liu; Ji Qi; Ming Feng; Hang Xu; Ruiping Liu; Nan Li; Chen Wang; Yuan Zhang; Yuting Zhang; L. Weiming

doi:10.1002/adsu.202100073

The Tunability of Oxygen Evolution Reaction in Flexible Van der Waals Manganite Membrane

Huan Liu
, Ji Qi
, Ming Feng^*
, Hang Xu
, Ruiping Liu
, Nan Li
, Chen Wang
, Yuan Zhang
, Yuting Zhang
, L. Weiming

^*Corresponding author for this work

Ministry of Education of the People's Republic of China
Harbin Institute of Technology
China University of Mining & Technology, Beijing

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

5 Scopus citations

Abstract

Transition metal oxides (TMOs) have been intensively investigated in varied electrochemical processes owing to their features of low cost, stability, and substantial activity, etc. The strain engineering of a TMO has been proposed as a promising method for enhanced electrochemical activities due to its strongly electron correlated nature. Generally this type of investigation is carried out by separated TMO thin films on various substrates with a different lattice constant. In this study, the oxygen evolution reaction (OER) activity of Van der Waals La_2/3Sr_1/3MnO₃ (LSMO) membrane is studied as a function of continuous strain manipulation via curvature change. It is found that a total of ≈800% OER activity tunability can be achieved by only ≈0.4% in situ strain modulation. Then the variation of in-plane interaction strength of the e_g orbital is found to correspond to the sensitive OER tunability and 3dx²−y² orbital occupancy is favored in an OER enhancement of LSMO.

Original language	English
Article number	2100073
Journal	Advanced Sustainable Systems
Volume	5
Issue number	7
DOIs	https://doi.org/10.1002/adsu.202100073
State	Published - Jul 2021
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

electrocatalysis
flexible
oxygen evolution reaction
strain
transition metal oxides

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10.1002/adsu.202100073

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title = "The Tunability of Oxygen Evolution Reaction in Flexible Van der Waals Manganite Membrane",

abstract = "Transition metal oxides (TMOs) have been intensively investigated in varied electrochemical processes owing to their features of low cost, stability, and substantial activity, etc. The strain engineering of a TMO has been proposed as a promising method for enhanced electrochemical activities due to its strongly electron correlated nature. Generally this type of investigation is carried out by separated TMO thin films on various substrates with a different lattice constant. In this study, the oxygen evolution reaction (OER) activity of Van der Waals La2/3Sr1/3MnO3 (LSMO) membrane is studied as a function of continuous strain manipulation via curvature change. It is found that a total of ≈800\% OER activity tunability can be achieved by only ≈0.4\% in situ strain modulation. Then the variation of in-plane interaction strength of the eg orbital is found to correspond to the sensitive OER tunability and 3dx2−y2 orbital occupancy is favored in an OER enhancement of LSMO.",

keywords = "electrocatalysis, flexible, oxygen evolution reaction, strain, transition metal oxides",

author = "Huan Liu and Ji Qi and Ming Feng and Hang Xu and Ruiping Liu and Nan Li and Chen Wang and Yuan Zhang and Yuting Zhang and L. Weiming",

note = "Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",

year = "2021",

month = jul,

doi = "10.1002/adsu.202100073",

language = "英语",

volume = "5",

journal = "Advanced Sustainable Systems",

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T1 - The Tunability of Oxygen Evolution Reaction in Flexible Van der Waals Manganite Membrane

AU - Liu, Huan

AU - Qi, Ji

AU - Feng, Ming

AU - Xu, Hang

AU - Liu, Ruiping

AU - Li, Nan

AU - Wang, Chen

AU - Zhang, Yuan

AU - Zhang, Yuting

AU - Weiming, L.

PY - 2021/7

Y1 - 2021/7

N2 - Transition metal oxides (TMOs) have been intensively investigated in varied electrochemical processes owing to their features of low cost, stability, and substantial activity, etc. The strain engineering of a TMO has been proposed as a promising method for enhanced electrochemical activities due to its strongly electron correlated nature. Generally this type of investigation is carried out by separated TMO thin films on various substrates with a different lattice constant. In this study, the oxygen evolution reaction (OER) activity of Van der Waals La2/3Sr1/3MnO3 (LSMO) membrane is studied as a function of continuous strain manipulation via curvature change. It is found that a total of ≈800% OER activity tunability can be achieved by only ≈0.4% in situ strain modulation. Then the variation of in-plane interaction strength of the eg orbital is found to correspond to the sensitive OER tunability and 3dx2−y2 orbital occupancy is favored in an OER enhancement of LSMO.

AB - Transition metal oxides (TMOs) have been intensively investigated in varied electrochemical processes owing to their features of low cost, stability, and substantial activity, etc. The strain engineering of a TMO has been proposed as a promising method for enhanced electrochemical activities due to its strongly electron correlated nature. Generally this type of investigation is carried out by separated TMO thin films on various substrates with a different lattice constant. In this study, the oxygen evolution reaction (OER) activity of Van der Waals La2/3Sr1/3MnO3 (LSMO) membrane is studied as a function of continuous strain manipulation via curvature change. It is found that a total of ≈800% OER activity tunability can be achieved by only ≈0.4% in situ strain modulation. Then the variation of in-plane interaction strength of the eg orbital is found to correspond to the sensitive OER tunability and 3dx2−y2 orbital occupancy is favored in an OER enhancement of LSMO.

KW - electrocatalysis

KW - flexible

KW - oxygen evolution reaction

KW - strain

KW - transition metal oxides

UR - https://www.scopus.com/pages/publications/85110351639

U2 - 10.1002/adsu.202100073

DO - 10.1002/adsu.202100073

M3 - 文章

AN - SCOPUS:85110351639

SN - 2366-7486

VL - 5

JO - Advanced Sustainable Systems

JF - Advanced Sustainable Systems

IS - 7

M1 - 2100073

ER -

The Tunability of Oxygen Evolution Reaction in Flexible Van der Waals Manganite Membrane

Abstract

UN SDGs

Keywords

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