Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Low-cost Ni/BaCO<sub>3</sub> composite electrodes <i>via</i> phase transformation for highly efficient alkaline hydrogen evolution.

Chemical communications (Cambridge, England)·2026
Same author

High-Temperature Moiré Magnetism in Twisted Itinerant Ferromagnets.

ACS nano·2026
Same author

Asymmetric Enhancement of Hydrogen and Oxygen Evolution Reactions in a Bifunctional Fe<sub>0.5</sub>Rh<sub>0.5</sub> Catalyst by Applying a Magnetic Field.

ACS applied materials & interfaces·2026
Same author

Nanoporous high-entropy alloys for electrochemical applications.

Chemical communications (Cambridge, England)·2026
Same author

Interface-to-Surface Transition Induced Topological Hall Effect in 2-Dimensional SrRuO<sub>3</sub> Integrated on Silicon.

Research (Washington, D.C.)·2026
Same author

An Artificial Memristor Synapse by Transferring and Stacking Freestanding Single-Crystalline SrTiO<sub>3-δ</sub> Films for Neuromorphic Computing.

ACS applied materials & interfaces·2025

Related Experiment Video

Updated: Jun 4, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
11:54

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

10.2K

Vector substrate design for grain boundary engineering: boosting oxygen evolution reaction performance in LaNiO3.

Huan Liu1, Yue Han1, Jinrui Guo2

  • 1School of Physics, Harbin Institute of Technology, Harbin 150001, China. wangzhihong@hit.edu.cn.

Materials Horizons
|December 18, 2024
PubMed
Summary

Engineered grain boundaries (GBs) in LaNiO3 catalysts enable superior oxygen evolution reaction (OER) performance. The (110)/(111) GB showed fastest surface reconstruction and highest OER activity.

More Related Videos

Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals
11:17

Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals

Published on: February 9, 2017

9.8K
Fabrication of Spatially Confined Complex Oxides
08:45

Fabrication of Spatially Confined Complex Oxides

Published on: July 1, 2013

9.5K

Related Experiment Videos

Last Updated: Jun 4, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
11:54

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures

Published on: February 8, 2018

10.2K
Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals
11:17

Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals

Published on: February 9, 2017

9.8K
Fabrication of Spatially Confined Complex Oxides
08:45

Fabrication of Spatially Confined Complex Oxides

Published on: July 1, 2013

9.5K

Area of Science:

  • Materials Science
  • Catalysis
  • Surface Chemistry

Background:

  • Grain boundaries (GBs) in materials offer unique electronic and structural properties.
  • GBs are promising for developing advanced catalysts for various reactions, including oxygen evolution.
  • Controlling GB quantity in catalysts is crucial but challenging for identifying functional attributes.

Purpose of the Study:

  • To engineer specific grain boundaries (GBs) in LaNiO3 (LNO) using a vector substrate design.
  • To evaluate the performance of engineered LNO GBs in the oxygen evolution reaction (OER).
  • To understand the relationship between GB structure, surface reconstruction, and OER activity.

Main Methods:

  • Engineered specific GBs: (001)/(110), (001)/(111), and (110)/(111) in LaNiO3.
  • Utilized a vector substrate design approach for GB engineering.
  • Evaluated OER performance and surface reconstruction of engineered LNO GBs.

Main Results:

  • The LNO (110)/(111) GB demonstrated the fastest surface reconstruction to Ni oxyhydroxide.
  • This GB exhibited superior OER performance, achieving 2.36 mA cm-2 at an overpotential of 400 mV.
  • Enhanced performance is linked to stronger Ni-O covalency and optimal O 2p-band center position.

Conclusions:

  • Engineered GBs in LNO can significantly enhance OER performance.
  • The (110)/(111) GB in LNO is a highly effective catalyst for OER due to its electronic properties and reconstruction behavior.
  • This study provides insights into optimizing catalysts by controlling grain boundary structures.