Self-Decorated MnO Nanoparticles on Double Perovskite Solid Oxide Fuel Cell Anode by in Situ Exsolution

Sivaprakash Sengodan; Young Wan Ju; Ohhun Kwon; Areum Jun; Hu Young Jeong; Tatsumi Ishihara; Jeeyoung Shin; Guntae Kim

doi:10.1021/acssuschemeng.7b02156

Self-Decorated MnO Nanoparticles on Double Perovskite Solid Oxide Fuel Cell Anode by in Situ Exsolution

Sivaprakash Sengodan, Young Wan Ju, Ohhun Kwon, Areum Jun, Hu Young Jeong, Tatsumi Ishihara, Jeeyoung Shin, Guntae Kim

Materials Science and Engineering, School of Engineering

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

23 Citations (Scopus)

Abstract

Surface decorated electrocatalytic nanoparticles coupled with oxide materials can effectively improve the electrochemical catalytic properties in energy storage and conversion application, such as chemical processes, electrolysis, batteries, and fuel cells. Particularly, Mn rich simple perovskite-type R_0.5Ba_0.5MnO_3-δ (R = Pr and Nd) undergoes a phase transition to layered perovskite RBaMn₂O_5+δ at high temperature reduced condition. During this phase transition, the exsolution of MnO nanoparticles (MnO-NP) from the bulk layered perovskite NdBaMn₂O_5+δ is observed. For in-depth investigation on the exsolution of MnO, a layered NdBaMn₂O_5+δ thin film is fabricated with pulsed laser deposition and characterized by transmission electron microscopy. For the first time, this paper reports clear evidence of self-decorated MnO nanoparticles on a layered NdBaMn₂O_5+δ matrix via exsolution process and their electro catalytic effect in solid oxide fuel cells.

Original language	English
Pages (from-to)	9207-9213
Number of pages	7
Journal	ACS Sustainable Chemistry and Engineering
Volume	5
Issue number	10
DOIs	https://doi.org/10.1021/acssuschemeng.7b02156
Publication status	Published - Oct 2 2017

All Science Journal Classification (ASJC) codes

Chemistry(all)
Environmental Chemistry
Chemical Engineering(all)
Renewable Energy, Sustainability and the Environment

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Self-Decorated MnO Nanoparticles on Double Perovskite Solid Oxide Fuel Cell Anode by in Situ Exsolution. / Sengodan, Sivaprakash; Ju, Young Wan; Kwon, Ohhun; Jun, Areum; Jeong, Hu Young; Ishihara, Tatsumi; Shin, Jeeyoung; Kim, Guntae.

In: ACS Sustainable Chemistry and Engineering, Vol. 5, No. 10, 02.10.2017, p. 9207-9213.

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

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abstract = "Surface decorated electrocatalytic nanoparticles coupled with oxide materials can effectively improve the electrochemical catalytic properties in energy storage and conversion application, such as chemical processes, electrolysis, batteries, and fuel cells. Particularly, Mn rich simple perovskite-type R0.5Ba0.5MnO3-δ (R = Pr and Nd) undergoes a phase transition to layered perovskite RBaMn2O5+δ at high temperature reduced condition. During this phase transition, the exsolution of MnO nanoparticles (MnO-NP) from the bulk layered perovskite NdBaMn2O5+δ is observed. For in-depth investigation on the exsolution of MnO, a layered NdBaMn2O5+δ thin film is fabricated with pulsed laser deposition and characterized by transmission electron microscopy. For the first time, this paper reports clear evidence of self-decorated MnO nanoparticles on a layered NdBaMn2O5+δ matrix via exsolution process and their electro catalytic effect in solid oxide fuel cells.",

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AU - Ju, Young Wan

AU - Kwon, Ohhun

AU - Jun, Areum

AU - Jeong, Hu Young

AU - Ishihara, Tatsumi

AU - Shin, Jeeyoung

AU - Kim, Guntae

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N2 - Surface decorated electrocatalytic nanoparticles coupled with oxide materials can effectively improve the electrochemical catalytic properties in energy storage and conversion application, such as chemical processes, electrolysis, batteries, and fuel cells. Particularly, Mn rich simple perovskite-type R0.5Ba0.5MnO3-δ (R = Pr and Nd) undergoes a phase transition to layered perovskite RBaMn2O5+δ at high temperature reduced condition. During this phase transition, the exsolution of MnO nanoparticles (MnO-NP) from the bulk layered perovskite NdBaMn2O5+δ is observed. For in-depth investigation on the exsolution of MnO, a layered NdBaMn2O5+δ thin film is fabricated with pulsed laser deposition and characterized by transmission electron microscopy. For the first time, this paper reports clear evidence of self-decorated MnO nanoparticles on a layered NdBaMn2O5+δ matrix via exsolution process and their electro catalytic effect in solid oxide fuel cells.

AB - Surface decorated electrocatalytic nanoparticles coupled with oxide materials can effectively improve the electrochemical catalytic properties in energy storage and conversion application, such as chemical processes, electrolysis, batteries, and fuel cells. Particularly, Mn rich simple perovskite-type R0.5Ba0.5MnO3-δ (R = Pr and Nd) undergoes a phase transition to layered perovskite RBaMn2O5+δ at high temperature reduced condition. During this phase transition, the exsolution of MnO nanoparticles (MnO-NP) from the bulk layered perovskite NdBaMn2O5+δ is observed. For in-depth investigation on the exsolution of MnO, a layered NdBaMn2O5+δ thin film is fabricated with pulsed laser deposition and characterized by transmission electron microscopy. For the first time, this paper reports clear evidence of self-decorated MnO nanoparticles on a layered NdBaMn2O5+δ matrix via exsolution process and their electro catalytic effect in solid oxide fuel cells.

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