Hydrothermal synthesis of monoclinic WO<inf>3</inf>nanoplates and nanorods used as an electrocatalyst for hydrogen evolution reactions from water
Monoclinic WO3(m-WO3) nanoplates and nanorods were successfully synthesized by a simple hydrothermal process using sodium tungstate dihydrate (Na2WO4·2H2O), ammonium nitrate (NH4NO3) and polyethylene glycol (PEG) as initial precursors. Phase, morphologies and electrochemical properties of the produc...
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th-cmuir.6653943832-506332018-09-04T04:46:58Z Hydrothermal synthesis of monoclinic WO<inf>3</inf>nanoplates and nanorods used as an electrocatalyst for hydrogen evolution reactions from water Dong Jin Ham Anukorn Phuruangrat Somchai Thongtem Jae Sung Lee Chemical Engineering Chemistry Engineering Environmental Science Monoclinic WO3(m-WO3) nanoplates and nanorods were successfully synthesized by a simple hydrothermal process using sodium tungstate dihydrate (Na2WO4·2H2O), ammonium nitrate (NH4NO3) and polyethylene glycol (PEG) as initial precursors. Phase, morphologies and electrochemical properties of the products were characterized by X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM, TEM), high-resolution transmission electron microscopy (HRTEM), cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The effect of NH4NO3concentration on the formation of the pure phase of m-WO3nanomaterial was studied. The product synthesized under NH4NO3-free condition was pure orthorhombic WO3·0.33H2O (o-WO3·0.33H2O) phase. By adding and increasing the amount of NH4NO3to the solution, m-WO3phase started to form and became pure m-WO3phase when 1.50g NH4NO3was used. The morphology of m-WO3was nanoplates, and became nanorods by PEG adding. The nanostructured m-WO3showed much higher electrocatalytic activity for hydrogen evolution from water than that of the commercial bulk m-WO3, including the m-WO3nanorods with slightly better than the m-WO3nanoplates. © 2010 Elsevier B.V. 2018-09-04T04:43:12Z 2018-09-04T04:43:12Z 2010-11-15 Journal 13858947 2-s2.0-78149498974 10.1016/j.cej.2010.09.003 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=78149498974&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50633 |
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Chemical Engineering Chemistry Engineering Environmental Science Dong Jin Ham Anukorn Phuruangrat Somchai Thongtem Jae Sung Lee Hydrothermal synthesis of monoclinic WO<inf>3</inf>nanoplates and nanorods used as an electrocatalyst for hydrogen evolution reactions from water |
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Monoclinic WO3(m-WO3) nanoplates and nanorods were successfully synthesized by a simple hydrothermal process using sodium tungstate dihydrate (Na2WO4·2H2O), ammonium nitrate (NH4NO3) and polyethylene glycol (PEG) as initial precursors. Phase, morphologies and electrochemical properties of the products were characterized by X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM, TEM), high-resolution transmission electron microscopy (HRTEM), cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The effect of NH4NO3concentration on the formation of the pure phase of m-WO3nanomaterial was studied. The product synthesized under NH4NO3-free condition was pure orthorhombic WO3·0.33H2O (o-WO3·0.33H2O) phase. By adding and increasing the amount of NH4NO3to the solution, m-WO3phase started to form and became pure m-WO3phase when 1.50g NH4NO3was used. The morphology of m-WO3was nanoplates, and became nanorods by PEG adding. The nanostructured m-WO3showed much higher electrocatalytic activity for hydrogen evolution from water than that of the commercial bulk m-WO3, including the m-WO3nanorods with slightly better than the m-WO3nanoplates. © 2010 Elsevier B.V. |
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author |
Dong Jin Ham Anukorn Phuruangrat Somchai Thongtem Jae Sung Lee |
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Dong Jin Ham Anukorn Phuruangrat Somchai Thongtem Jae Sung Lee |
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Dong Jin Ham |
title |
Hydrothermal synthesis of monoclinic WO<inf>3</inf>nanoplates and nanorods used as an electrocatalyst for hydrogen evolution reactions from water |
title_short |
Hydrothermal synthesis of monoclinic WO<inf>3</inf>nanoplates and nanorods used as an electrocatalyst for hydrogen evolution reactions from water |
title_full |
Hydrothermal synthesis of monoclinic WO<inf>3</inf>nanoplates and nanorods used as an electrocatalyst for hydrogen evolution reactions from water |
title_fullStr |
Hydrothermal synthesis of monoclinic WO<inf>3</inf>nanoplates and nanorods used as an electrocatalyst for hydrogen evolution reactions from water |
title_full_unstemmed |
Hydrothermal synthesis of monoclinic WO<inf>3</inf>nanoplates and nanorods used as an electrocatalyst for hydrogen evolution reactions from water |
title_sort |
hydrothermal synthesis of monoclinic wo<inf>3</inf>nanoplates and nanorods used as an electrocatalyst for hydrogen evolution reactions from water |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=78149498974&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50633 |
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