Integrity of Alumina Catalytic Support Prepared by Anodization in a High Temperature Steam Environment

Chaewon Kim; Sung Hwan Kim; Gokul Obulan Subramanian; Changheui Jang; Keun Man Park

doi:10.1007/s12540-018-0198-0

Integrity of Alumina Catalytic Support Prepared by Anodization in a High Temperature Steam Environment

Chaewon Kim, Sung Hwan Kim, Gokul Obulan Subramanian, Changheui Jang^*, Keun Man Park

^*Corresponding author for this work

Metallurgy and Materials

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

1 Citation (Scopus)

Abstract

As a catalytic support for passive autocatalytic recombiner in nuclear power plants, anodic alumina layer was formed on stainless steel 304 by applying either Al or NiAl diffusion coatings on 304SS, followed by anodization and calcination. The anodic alumina had porous and nano-fibrous morphology and showed comparable hydrogen conversion ratio as the conventional wash-coated catalytic support. Integrity of catalytic supports was evaluated by steam oxidation test at 900 °C for 100 h. The wash-coated catalytic support exhibited oxide breakaway and Fe-oxide formation. On the other hand, α-alumina was formed on anodized catalytic support with Al or NiAl diffusion layers, which showed good adherence to the underlying metal substrate.

Original language	English
Pages (from-to)	324-332
Number of pages	9
Journal	Metals and Materials International
Volume	25
Issue number	2
DOIs	https://doi.org/10.1007/s12540-018-0198-0
Publication status	Published - 8 Mar 2019

Bibliographical note

Funding Information:
Acknowledgements This study was supported by the MOTIE/KETEP of the Republic of Korea (No. 20151520101050). Financial support for three of the authors was provided by the BK-Plus Program of the MSIP/ NRF of the Republic of Korea.

Publisher Copyright:
© 2018, The Korean Institute of Metals and Materials.

Keywords

Anodic alumina
Catalyst support
High temperature steam
Nickel aluminide

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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title = "Integrity of Alumina Catalytic Support Prepared by Anodization in a High Temperature Steam Environment",

abstract = "As a catalytic support for passive autocatalytic recombiner in nuclear power plants, anodic alumina layer was formed on stainless steel 304 by applying either Al or NiAl diffusion coatings on 304SS, followed by anodization and calcination. The anodic alumina had porous and nano-fibrous morphology and showed comparable hydrogen conversion ratio as the conventional wash-coated catalytic support. Integrity of catalytic supports was evaluated by steam oxidation test at 900 °C for 100 h. The wash-coated catalytic support exhibited oxide breakaway and Fe-oxide formation. On the other hand, α-alumina was formed on anodized catalytic support with Al or NiAl diffusion layers, which showed good adherence to the underlying metal substrate.",

keywords = "Anodic alumina, Catalyst support, High temperature steam, Nickel aluminide",

author = "Chaewon Kim and Kim, {Sung Hwan} and {Obulan Subramanian}, Gokul and Changheui Jang and Park, {Keun Man}",

note = "Funding Information: Acknowledgements This study was supported by the MOTIE/KETEP of the Republic of Korea (No. 20151520101050). Financial support for three of the authors was provided by the BK-Plus Program of the MSIP/ NRF of the Republic of Korea. Publisher Copyright: {\textcopyright} 2018, The Korean Institute of Metals and Materials.",

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doi = "10.1007/s12540-018-0198-0",

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T1 - Integrity of Alumina Catalytic Support Prepared by Anodization in a High Temperature Steam Environment

AU - Kim, Chaewon

AU - Kim, Sung Hwan

AU - Obulan Subramanian, Gokul

AU - Jang, Changheui

AU - Park, Keun Man

N1 - Funding Information: Acknowledgements This study was supported by the MOTIE/KETEP of the Republic of Korea (No. 20151520101050). Financial support for three of the authors was provided by the BK-Plus Program of the MSIP/ NRF of the Republic of Korea. Publisher Copyright: © 2018, The Korean Institute of Metals and Materials.

PY - 2019/3/8

Y1 - 2019/3/8

N2 - As a catalytic support for passive autocatalytic recombiner in nuclear power plants, anodic alumina layer was formed on stainless steel 304 by applying either Al or NiAl diffusion coatings on 304SS, followed by anodization and calcination. The anodic alumina had porous and nano-fibrous morphology and showed comparable hydrogen conversion ratio as the conventional wash-coated catalytic support. Integrity of catalytic supports was evaluated by steam oxidation test at 900 °C for 100 h. The wash-coated catalytic support exhibited oxide breakaway and Fe-oxide formation. On the other hand, α-alumina was formed on anodized catalytic support with Al or NiAl diffusion layers, which showed good adherence to the underlying metal substrate.

AB - As a catalytic support for passive autocatalytic recombiner in nuclear power plants, anodic alumina layer was formed on stainless steel 304 by applying either Al or NiAl diffusion coatings on 304SS, followed by anodization and calcination. The anodic alumina had porous and nano-fibrous morphology and showed comparable hydrogen conversion ratio as the conventional wash-coated catalytic support. Integrity of catalytic supports was evaluated by steam oxidation test at 900 °C for 100 h. The wash-coated catalytic support exhibited oxide breakaway and Fe-oxide formation. On the other hand, α-alumina was formed on anodized catalytic support with Al or NiAl diffusion layers, which showed good adherence to the underlying metal substrate.

KW - Anodic alumina

KW - Catalyst support

KW - High temperature steam

KW - Nickel aluminide

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SN - 1598-9623

VL - 25

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JO - Metals and Materials International

JF - Metals and Materials International

IS - 2

ER -

Integrity of Alumina Catalytic Support Prepared by Anodization in a High Temperature Steam Environment

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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