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Cation-swapped homogeneous nanoparticles in perovskite oxides for high power density

Authors
  • Joo, Sangwook1
  • Kwon, Ohhun1
  • Kim, Kyeounghak2
  • Kim, Seona1
  • Kim, Hyunmin1
  • Shin, Jeeyoung3, 4
  • Jeong, Hu Young5
  • Sengodan, Sivaprakash6
  • Han, Jeong Woo2
  • Kim, Guntae1
  • 1 Ulsan National Institute of Science and Technology (UNIST), School of Energy and Chemical Engineering, Ulsan, 44919, Republic of Korea , Ulsan (South Korea)
  • 2 Pohang University of Science and Technology (POSTECH), Department of Chemical Engineering, Pohang, 37673, Republic of Korea , Pohang (South Korea)
  • 3 Sookmyung Women’s University, Division of Mechanical Systems Engineering, Seoul, 04310, Republic of Korea , Seoul (South Korea)
  • 4 Sookmyung Women’s University Seoul, Institute of Advanced Materials and Systems, Seoul, 04310, Republic of Korea , Seoul (South Korea)
  • 5 UNIST, UNIST Central Research Facilities and School of Materials Science and Engineering, Ulsan, 44919, Republic of Korea , Ulsan (South Korea)
  • 6 Imperial College London, Department of Materials, Exhibition Road, London, SW7 2AZ, UK , London (United Kingdom)
Type
Published Article
Journal
Nature Communications
Publisher
Springer Nature
Publication Date
Feb 11, 2019
Volume
10
Issue
1
Identifiers
DOI: 10.1038/s41467-019-08624-0
Source
Springer Nature
License
Green

Abstract

Exsolution is attractive for the preparation of catalytically active metal nanoparticles, but versatility is limited. Here the authors report a technique for selective exsolution through topotactic ion exchange, leading to an electrocatalyst for a solid oxide fuel cell with enhanced performance.

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