Highly single crystalline Ir xRu 1-xO 2 mixed metal oxide nanowires

Yumin Lee; Hae Young Shin; Sung Hee Chun; Jaeyeon Lee; Won Jeong Park; Jeong Min Baik; Seokhyun Yoon; Myung Hwa Kim

doi:10.1021/jp3048532

Highly single crystalline Ir _xRu _1-xO ₂ mixed metal oxide nanowires

Yumin Lee, Hae Young Shin, Sung Hee Chun, Jaeyeon Lee, Won Jeong Park, Jeong Min Baik, Seokhyun Yoon, Myung Hwa Kim

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

19 Scopus citations

Abstract

The nanostructured iridium-ruthenium mixed metal oxide (Ir _xRu _1-xO ₂, 0 ≤ x ≤ 1) is the most promising candidate as a highly efficient electrode material for the electrolysis of water. We present a facile synthesis and structural characterization of highly single crystalline Ir _xRu _1-xO ₂ mixed metal oxide nanowires for the first time via a simple vapor phase transport process by carefully controlling the relative ratios of IrO ₂ and RuO ₂ precursors. We also observed that an E _g mode of an Ir _xRu _1-xO ₂ nanowire measured from Raman scattering is being linearly blue shifted and its line width is asymmetrically broadened with respect to the increase of the Ir contents, indicating that we could quantitatively determine stoichiometry information as well as crystal structure for mixed metal oxide nanowires.

Original language	English
Pages (from-to)	16300-16304
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	116
Issue number	30
DOIs	https://doi.org/10.1021/jp3048532
State	Published - 2 Aug 2012

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title = "Highly single crystalline Ir xRu 1-xO 2 mixed metal oxide nanowires",

abstract = "The nanostructured iridium-ruthenium mixed metal oxide (Ir xRu 1-xO 2, 0 ≤ x ≤ 1) is the most promising candidate as a highly efficient electrode material for the electrolysis of water. We present a facile synthesis and structural characterization of highly single crystalline Ir xRu 1-xO 2 mixed metal oxide nanowires for the first time via a simple vapor phase transport process by carefully controlling the relative ratios of IrO 2 and RuO 2 precursors. We also observed that an E g mode of an Ir xRu 1-xO 2 nanowire measured from Raman scattering is being linearly blue shifted and its line width is asymmetrically broadened with respect to the increase of the Ir contents, indicating that we could quantitatively determine stoichiometry information as well as crystal structure for mixed metal oxide nanowires.",

author = "Yumin Lee and Shin, {Hae Young} and Chun, {Sung Hee} and Jaeyeon Lee and Park, {Won Jeong} and Baik, {Jeong Min} and Seokhyun Yoon and Kim, {Myung Hwa}",

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doi = "10.1021/jp3048532",

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T1 - Highly single crystalline Ir xRu 1-xO 2 mixed metal oxide nanowires

AU - Lee, Yumin

AU - Shin, Hae Young

AU - Chun, Sung Hee

AU - Lee, Jaeyeon

AU - Park, Won Jeong

AU - Baik, Jeong Min

AU - Yoon, Seokhyun

AU - Kim, Myung Hwa

PY - 2012/8/2

Y1 - 2012/8/2

N2 - The nanostructured iridium-ruthenium mixed metal oxide (Ir xRu 1-xO 2, 0 ≤ x ≤ 1) is the most promising candidate as a highly efficient electrode material for the electrolysis of water. We present a facile synthesis and structural characterization of highly single crystalline Ir xRu 1-xO 2 mixed metal oxide nanowires for the first time via a simple vapor phase transport process by carefully controlling the relative ratios of IrO 2 and RuO 2 precursors. We also observed that an E g mode of an Ir xRu 1-xO 2 nanowire measured from Raman scattering is being linearly blue shifted and its line width is asymmetrically broadened with respect to the increase of the Ir contents, indicating that we could quantitatively determine stoichiometry information as well as crystal structure for mixed metal oxide nanowires.

AB - The nanostructured iridium-ruthenium mixed metal oxide (Ir xRu 1-xO 2, 0 ≤ x ≤ 1) is the most promising candidate as a highly efficient electrode material for the electrolysis of water. We present a facile synthesis and structural characterization of highly single crystalline Ir xRu 1-xO 2 mixed metal oxide nanowires for the first time via a simple vapor phase transport process by carefully controlling the relative ratios of IrO 2 and RuO 2 precursors. We also observed that an E g mode of an Ir xRu 1-xO 2 nanowire measured from Raman scattering is being linearly blue shifted and its line width is asymmetrically broadened with respect to the increase of the Ir contents, indicating that we could quantitatively determine stoichiometry information as well as crystal structure for mixed metal oxide nanowires.

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JF - Journal of Physical Chemistry C

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Highly single crystalline Ir xRu 1-xO 2 mixed metal oxide nanowires

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Highly single crystalline Ir _xRu _1-xO ₂ mixed metal oxide nanowires