Development of rare earth element-doped Ni-Ba(Ce/Zr)O3 cermets for hydrogen-permeable membranes

Woo Ram Kang; Ki Bong Lee

doi:10.1016/j.jiec.2015.04.003

Development of rare earth element-doped Ni-Ba(Ce/Zr)O₃ cermets for hydrogen-permeable membranes

Woo Ram Kang, Ki Bong Lee

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

6 Citations (Scopus)

Abstract

Substitution of the rare earth element in Ni-Ba(Ce/Zr)O₃ cermets (i.e., ceramic-metal composites) is considered a promising method for improving their hydrogen permeability, which could potentially improve the quality of cermet membranes. Microstructure and chemical properties of a rare earth element-doped cermet strongly depend on the type and content of the rare earth element. In this study, Ni-BaCe_0.5Zr_0.3M_0.2O₃ (M=Er, Sm) cermets were prepared by a citrate-nitrate gel combustion method. Analyses based on X-ray diffraction, field emission scanning electron microscopy, and energy-dispersive X-ray spectroscopy indicated that Er and Sm have rather different solubilities in the Ni-Ba(Ce/Zr)O₃ cermet and that when the amount of Sm exceeds the solubility limit, it reacts with the cermet, forming an impurity phase. Thermogravimetric analysis showed that the substitution of rare earth dopants in Ni-Ba(Ce/Zr)O₃ improved the chemical stability of the cermets against CO₂ and that Ni-BaCe_0.5Zr_0.3Er_0.2O₃ is chemically more stable than Ni-BaCe_0.5Zr_0.3Sm_0.2O₃ below 670°C.

Original language	English
Pages (from-to)	194-198
Number of pages	5
Journal	Journal of Industrial and Engineering Chemistry
Volume	29
DOIs	https://doi.org/10.1016/j.jiec.2015.04.003
Publication status	Published - 2015 Sept 25

Bibliographical note

Funding Information:
This research was supported by the Human Resources Development Program ( 20134010200600 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean government's Ministry of Trade, Industry and Energy. The authors also acknowledge the Korea Research Council of Fundamental Science and Technology (KRCF) for additional support through the National Agenda Program (NAP-09-01).

Keywords

Cermet
Chemical stability
Hydrogen separation
Rare earth element

ASJC Scopus subject areas

General Chemical Engineering

Access to Document

10.1016/j.jiec.2015.04.003

Cite this

@article{19ca179fbb1c4e0eacdd652cadcabdb7,

title = "Development of rare earth element-doped Ni-Ba(Ce/Zr)O3 cermets for hydrogen-permeable membranes",

abstract = "Substitution of the rare earth element in Ni-Ba(Ce/Zr)O3 cermets (i.e., ceramic-metal composites) is considered a promising method for improving their hydrogen permeability, which could potentially improve the quality of cermet membranes. Microstructure and chemical properties of a rare earth element-doped cermet strongly depend on the type and content of the rare earth element. In this study, Ni-BaCe0.5Zr0.3M0.2O3 (M=Er, Sm) cermets were prepared by a citrate-nitrate gel combustion method. Analyses based on X-ray diffraction, field emission scanning electron microscopy, and energy-dispersive X-ray spectroscopy indicated that Er and Sm have rather different solubilities in the Ni-Ba(Ce/Zr)O3 cermet and that when the amount of Sm exceeds the solubility limit, it reacts with the cermet, forming an impurity phase. Thermogravimetric analysis showed that the substitution of rare earth dopants in Ni-Ba(Ce/Zr)O3 improved the chemical stability of the cermets against CO2 and that Ni-BaCe0.5Zr0.3Er0.2O3 is chemically more stable than Ni-BaCe0.5Zr0.3Sm0.2O3 below 670°C.",

keywords = "Cermet, Chemical stability, Hydrogen separation, Rare earth element",

author = "Kang, {Woo Ram} and Lee, {Ki Bong}",

note = "Funding Information: This research was supported by the Human Resources Development Program ( 20134010200600 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean government's Ministry of Trade, Industry and Energy. The authors also acknowledge the Korea Research Council of Fundamental Science and Technology (KRCF) for additional support through the National Agenda Program (NAP-09-01).",

year = "2015",

month = sep,

day = "25",

doi = "10.1016/j.jiec.2015.04.003",

language = "English",

volume = "29",

pages = "194--198",

journal = "Journal of Industrial and Engineering Chemistry",

issn = "1226-086X",

publisher = "Korean Society of Industrial Engineering Chemistry",

}

TY - JOUR

T1 - Development of rare earth element-doped Ni-Ba(Ce/Zr)O3 cermets for hydrogen-permeable membranes

AU - Kang, Woo Ram

AU - Lee, Ki Bong

N1 - Funding Information: This research was supported by the Human Resources Development Program ( 20134010200600 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean government's Ministry of Trade, Industry and Energy. The authors also acknowledge the Korea Research Council of Fundamental Science and Technology (KRCF) for additional support through the National Agenda Program (NAP-09-01).

PY - 2015/9/25

Y1 - 2015/9/25

N2 - Substitution of the rare earth element in Ni-Ba(Ce/Zr)O3 cermets (i.e., ceramic-metal composites) is considered a promising method for improving their hydrogen permeability, which could potentially improve the quality of cermet membranes. Microstructure and chemical properties of a rare earth element-doped cermet strongly depend on the type and content of the rare earth element. In this study, Ni-BaCe0.5Zr0.3M0.2O3 (M=Er, Sm) cermets were prepared by a citrate-nitrate gel combustion method. Analyses based on X-ray diffraction, field emission scanning electron microscopy, and energy-dispersive X-ray spectroscopy indicated that Er and Sm have rather different solubilities in the Ni-Ba(Ce/Zr)O3 cermet and that when the amount of Sm exceeds the solubility limit, it reacts with the cermet, forming an impurity phase. Thermogravimetric analysis showed that the substitution of rare earth dopants in Ni-Ba(Ce/Zr)O3 improved the chemical stability of the cermets against CO2 and that Ni-BaCe0.5Zr0.3Er0.2O3 is chemically more stable than Ni-BaCe0.5Zr0.3Sm0.2O3 below 670°C.

AB - Substitution of the rare earth element in Ni-Ba(Ce/Zr)O3 cermets (i.e., ceramic-metal composites) is considered a promising method for improving their hydrogen permeability, which could potentially improve the quality of cermet membranes. Microstructure and chemical properties of a rare earth element-doped cermet strongly depend on the type and content of the rare earth element. In this study, Ni-BaCe0.5Zr0.3M0.2O3 (M=Er, Sm) cermets were prepared by a citrate-nitrate gel combustion method. Analyses based on X-ray diffraction, field emission scanning electron microscopy, and energy-dispersive X-ray spectroscopy indicated that Er and Sm have rather different solubilities in the Ni-Ba(Ce/Zr)O3 cermet and that when the amount of Sm exceeds the solubility limit, it reacts with the cermet, forming an impurity phase. Thermogravimetric analysis showed that the substitution of rare earth dopants in Ni-Ba(Ce/Zr)O3 improved the chemical stability of the cermets against CO2 and that Ni-BaCe0.5Zr0.3Er0.2O3 is chemically more stable than Ni-BaCe0.5Zr0.3Sm0.2O3 below 670°C.

KW - Cermet

KW - Chemical stability

KW - Hydrogen separation

KW - Rare earth element

UR - http://www.scopus.com/inward/record.url?scp=84938747036&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938747036&partnerID=8YFLogxK

U2 - 10.1016/j.jiec.2015.04.003

DO - 10.1016/j.jiec.2015.04.003

M3 - Article

AN - SCOPUS:84938747036

SN - 1226-086X

VL - 29

SP - 194

EP - 198

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -