High-temperature hydrogen-reduction process for the preparation of low-oxygen Mo powder from MoO3

Ja Geon Ku; Jung Min Oh; Hanjung Kwon; Jae Won Lim

doi:10.1016/j.ijhydene.2016.09.004

High-temperature hydrogen-reduction process for the preparation of low-oxygen Mo powder from MoO₃

Ja Geon Ku
, Jung Min Oh
, Hanjung Kwon
, Jae Won Lim^*

^*Corresponding author for this work

Metallurgical System Engineering

Research output: Contribution to journal › Journal article › peer-review

31 Scopus citations

Abstract

In this study, a new high-temperature hydrogen-reduction (HTHR) process was applied for the preparation of a low-oxygen Mo powder whereby MoO₃was used as a raw material. The HTHR-prepared Mo powder showed a low oxygen concentration of 1580 ppm, which was obtained at a reduction temperature of 1500 °C. From the oxidation-resistance test of the low-oxygen Mo powder, the oxidation resistance of the 1500 °C-prepared low-oxygen Mo powder is outstanding. The improved oxidation resistance is derived from the reduced oxygen concentration that can be diffused to the surface where it forms an oxidation layer on the Mo powder. When compared with the conventional hydrogen-reduction process, the HTHR process provided an improved oxidation resistance as well as a low oxygen concentration.

Original language	English
Pages (from-to)	2139-2143
Number of pages	5
Journal	International Journal of Hydrogen Energy
Volume	42
Issue number	4
DOIs	https://doi.org/10.1016/j.ijhydene.2016.09.004
State	Published - 2017.01.26

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Hydrogen reduction
Low oxygen
Molybdenum
MoO
Oxidation resistance

Quacquarelli Symonds(QS) Subject Topics

Engineering - Electrical & Electronic
Engineering - Petroleum
Physics & Astronomy

Access to Document

10.1016/j.ijhydene.2016.09.004

Cite this

@article{0c05afbd3dba439481b118ecca1ba51d,

title = "High-temperature hydrogen-reduction process for the preparation of low-oxygen Mo powder from MoO3 ",

abstract = "In this study, a new high-temperature hydrogen-reduction (HTHR) process was applied for the preparation of a low-oxygen Mo powder whereby MoO3was used as a raw material. The HTHR-prepared Mo powder showed a low oxygen concentration of 1580 ppm, which was obtained at a reduction temperature of 1500 °C. From the oxidation-resistance test of the low-oxygen Mo powder, the oxidation resistance of the 1500 °C-prepared low-oxygen Mo powder is outstanding. The improved oxidation resistance is derived from the reduced oxygen concentration that can be diffused to the surface where it forms an oxidation layer on the Mo powder. When compared with the conventional hydrogen-reduction process, the HTHR process provided an improved oxidation resistance as well as a low oxygen concentration.",

keywords = "Hydrogen reduction, Low oxygen, Molybdenum, MoO, Oxidation resistance",

author = "Ku, \{Ja Geon\} and Oh, \{Jung Min\} and Hanjung Kwon and Lim, \{Jae Won\}",

note = "Publisher Copyright: {\textcopyright} 2016 Hydrogen Energy Publications LLC",

year = "2017",

month = jan,

day = "26",

doi = "10.1016/j.ijhydene.2016.09.004",

language = "English",

volume = "42",

pages = "2139--2143",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

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}

TY - JOUR

T1 - High-temperature hydrogen-reduction process for the preparation of low-oxygen Mo powder from MoO3

AU - Ku, Ja Geon

AU - Oh, Jung Min

AU - Kwon, Hanjung

AU - Lim, Jae Won

PY - 2017/1/26

Y1 - 2017/1/26

N2 - In this study, a new high-temperature hydrogen-reduction (HTHR) process was applied for the preparation of a low-oxygen Mo powder whereby MoO3was used as a raw material. The HTHR-prepared Mo powder showed a low oxygen concentration of 1580 ppm, which was obtained at a reduction temperature of 1500 °C. From the oxidation-resistance test of the low-oxygen Mo powder, the oxidation resistance of the 1500 °C-prepared low-oxygen Mo powder is outstanding. The improved oxidation resistance is derived from the reduced oxygen concentration that can be diffused to the surface where it forms an oxidation layer on the Mo powder. When compared with the conventional hydrogen-reduction process, the HTHR process provided an improved oxidation resistance as well as a low oxygen concentration.

AB - In this study, a new high-temperature hydrogen-reduction (HTHR) process was applied for the preparation of a low-oxygen Mo powder whereby MoO3was used as a raw material. The HTHR-prepared Mo powder showed a low oxygen concentration of 1580 ppm, which was obtained at a reduction temperature of 1500 °C. From the oxidation-resistance test of the low-oxygen Mo powder, the oxidation resistance of the 1500 °C-prepared low-oxygen Mo powder is outstanding. The improved oxidation resistance is derived from the reduced oxygen concentration that can be diffused to the surface where it forms an oxidation layer on the Mo powder. When compared with the conventional hydrogen-reduction process, the HTHR process provided an improved oxidation resistance as well as a low oxygen concentration.

KW - Hydrogen reduction

KW - Low oxygen

KW - Molybdenum

KW - MoO

KW - Oxidation resistance

UR - https://www.scopus.com/pages/publications/84994508644

U2 - 10.1016/j.ijhydene.2016.09.004

DO - 10.1016/j.ijhydene.2016.09.004

M3 - Journal article

AN - SCOPUS:84994508644

SN - 0360-3199

VL - 42

SP - 2139

EP - 2143

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 4

ER -