Evolution of anodic product from Mo metal in absolute ethanol and humidity sensing under an ambient condition

Chengsheng Ni, Darragh Carolan, Jianing Hui, Conor Rocks, Dilli Babu Padmanaban, Jiupai Ni, Deti Xie, Zeguo Fang, John Irvine, P Maguire, Davide Mariotti

Research output: Contribution to journalArticle

Abstract

Room temperature non aqueous synthetic routes turn out to be particularly competitive among all the available liquid phase synthetic methods for nanometer sized metal oxides for multiple applications. Microplasma assisted anodization is employed to prepare soluble and crystalline Mo species in a water deficient and extraneous ionic salt free ethanol electrolyte. The anodization of Mo in absolute ethanol is found to produce Mo oxyethoxide in the liquid ethanol phase along with a small montage of mixed hexagonal and orthorhombic MoO3 crystals. The evolution of Mo species in solid and liquid phase is characterized to study the crystallization of MoO3 crystal and the formation of blue spherical Mo polyoxometalates (POMs) after extended aging. The addition of water in the suspension delayed the formation of molybdenum blue while hydrogen peroxide induced the precipitation of dendritic framework of hexagonal MoO3. A thin MoO3 film was produced from the solution and can be used for humidity sensing by the facile conductivity measurement.
LanguageEnglish
JournalACS Crystal Growth & Design
DOIs
Publication statusPublished - 9 Aug 2019

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Atmospheric humidity
Ethanol
Metals
Liquids
Crystals
Water
Crystallization
Oxides
Hydrogen Peroxide
Electrolytes
Suspensions
Salts
Aging of materials
Crystalline materials
Thin films
molybdenum trioxide
Temperature

Cite this

Ni, Chengsheng ; Carolan, Darragh ; Hui, Jianing ; Rocks, Conor ; Padmanaban, Dilli Babu ; Ni, Jiupai ; Xie, Deti ; Fang, Zeguo ; Irvine, John ; Maguire, P ; Mariotti, Davide. / Evolution of anodic product from Mo metal in absolute ethanol and humidity sensing under an ambient condition. 2019.
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abstract = "Room temperature non aqueous synthetic routes turn out to be particularly competitive among all the available liquid phase synthetic methods for nanometer sized metal oxides for multiple applications. Microplasma assisted anodization is employed to prepare soluble and crystalline Mo species in a water deficient and extraneous ionic salt free ethanol electrolyte. The anodization of Mo in absolute ethanol is found to produce Mo oxyethoxide in the liquid ethanol phase along with a small montage of mixed hexagonal and orthorhombic MoO3 crystals. The evolution of Mo species in solid and liquid phase is characterized to study the crystallization of MoO3 crystal and the formation of blue spherical Mo polyoxometalates (POMs) after extended aging. The addition of water in the suspension delayed the formation of molybdenum blue while hydrogen peroxide induced the precipitation of dendritic framework of hexagonal MoO3. A thin MoO3 film was produced from the solution and can be used for humidity sensing by the facile conductivity measurement.",
author = "Chengsheng Ni and Darragh Carolan and Jianing Hui and Conor Rocks and Padmanaban, {Dilli Babu} and Jiupai Ni and Deti Xie and Zeguo Fang and John Irvine and P Maguire and Davide Mariotti",
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Evolution of anodic product from Mo metal in absolute ethanol and humidity sensing under an ambient condition. / Ni, Chengsheng; Carolan, Darragh; Hui, Jianing; Rocks, Conor; Padmanaban, Dilli Babu; Ni, Jiupai; Xie, Deti; Fang, Zeguo; Irvine, John; Maguire, P; Mariotti, Davide.

09.08.2019.

Research output: Contribution to journalArticle

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T1 - Evolution of anodic product from Mo metal in absolute ethanol and humidity sensing under an ambient condition

AU - Ni, Chengsheng

AU - Carolan, Darragh

AU - Hui, Jianing

AU - Rocks, Conor

AU - Padmanaban, Dilli Babu

AU - Ni, Jiupai

AU - Xie, Deti

AU - Fang, Zeguo

AU - Irvine, John

AU - Maguire, P

AU - Mariotti, Davide

PY - 2019/8/9

Y1 - 2019/8/9

N2 - Room temperature non aqueous synthetic routes turn out to be particularly competitive among all the available liquid phase synthetic methods for nanometer sized metal oxides for multiple applications. Microplasma assisted anodization is employed to prepare soluble and crystalline Mo species in a water deficient and extraneous ionic salt free ethanol electrolyte. The anodization of Mo in absolute ethanol is found to produce Mo oxyethoxide in the liquid ethanol phase along with a small montage of mixed hexagonal and orthorhombic MoO3 crystals. The evolution of Mo species in solid and liquid phase is characterized to study the crystallization of MoO3 crystal and the formation of blue spherical Mo polyoxometalates (POMs) after extended aging. The addition of water in the suspension delayed the formation of molybdenum blue while hydrogen peroxide induced the precipitation of dendritic framework of hexagonal MoO3. A thin MoO3 film was produced from the solution and can be used for humidity sensing by the facile conductivity measurement.

AB - Room temperature non aqueous synthetic routes turn out to be particularly competitive among all the available liquid phase synthetic methods for nanometer sized metal oxides for multiple applications. Microplasma assisted anodization is employed to prepare soluble and crystalline Mo species in a water deficient and extraneous ionic salt free ethanol electrolyte. The anodization of Mo in absolute ethanol is found to produce Mo oxyethoxide in the liquid ethanol phase along with a small montage of mixed hexagonal and orthorhombic MoO3 crystals. The evolution of Mo species in solid and liquid phase is characterized to study the crystallization of MoO3 crystal and the formation of blue spherical Mo polyoxometalates (POMs) after extended aging. The addition of water in the suspension delayed the formation of molybdenum blue while hydrogen peroxide induced the precipitation of dendritic framework of hexagonal MoO3. A thin MoO3 film was produced from the solution and can be used for humidity sensing by the facile conductivity measurement.

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