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Highly efficient and durable phosphine reduced iron-doped tungsten oxide/reduced graphene oxide nanocomposites for the hydrogen evolution reaction.

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Title: Highly efficient and durable phosphine reduced iron-doped tungsten oxide/reduced graphene oxide nanocomposites for the hydrogen evolution reaction.
Authors: Wondimu, Tadele Hunde1, Chen, Guan-Cheng1, Kabtamu, Daniel Manaye1, Chen, Hsueh-Yu1, Bayeh, Anteneh Wodaje1, Huang, Hsin-Chih1, Wang, Chen Hao1 chwang@mail.ntust.edu.tw
Source: International Journal of Hydrogen Energy. Mar2018, Vol. 43 Issue 13, p6481-6490. 10p.
Subjects: Nanocomposite materials, Tungsten, Composite materials, Graphene, Carbon
Abstract: The design and development of inexpensive and highly efficient electrocatalysts for hydrogen production from water splitting are highly crucial for green energy and the hydrogen economy. Herein, we report phosphine reduced an iron-doped tungsten oxide nanoplate/reduced graphene oxide nanocomposite (Fe-WOxP/rGO) as an excellent electrocatalyst for the hydrogen evolution reaction. This electrocatalyst was synthesized using a hydrothermal method, followed by reduction with phosphine (PH 3 ), which was generated from sodium hypophosphite. The catalyst onset potential, Tafel slope, and stability were investigated. Accordingly, Fe-WOxP/rGO exhibited impressively high electrocatalytic activity with a low overpotential of 54.60 mV, which is required to achieve a current density of 10 mAcm −2 . The Tafel slope of 41.99 mV dec −1 and the linear sweep voltammetry curve is almost the same as 2000 cycles and electrolysis under static overpotential (54.60 mV) is remain for more than 24 h in 0.5 M H 2 SO 4 . The catalytic activity and conductivity of Fe-WOxP/rGO were higher than WO X P, Fe-WOxP and WOxP/rGO. Such an outstanding performance of the Fe-WOxP/rGO nanocomposite is attributed to the coupled synergic effect between high oxygen vacancies formation on tungsten oxide in the nanoplate-like structure of Fe-WOxP and rGO nanosheet, making it as an excellent electrocatalyst for hydrogen evolution reaction. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 128518883
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Highly efficient and durable phosphine reduced iron-doped tungsten oxide/reduced graphene oxide nanocomposites for the hydrogen evolution reaction.
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  Data: <searchLink fieldCode="AR" term="%22Wondimu%2C+Tadele+Hunde%22">Wondimu, Tadele Hunde</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chen%2C+Guan-Cheng%22">Chen, Guan-Cheng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kabtamu%2C+Daniel+Manaye%22">Kabtamu, Daniel Manaye</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chen%2C+Hsueh-Yu%22">Chen, Hsueh-Yu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bayeh%2C+Anteneh+Wodaje%22">Bayeh, Anteneh Wodaje</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Huang%2C+Hsin-Chih%22">Huang, Hsin-Chih</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Chen+Hao%22">Wang, Chen Hao</searchLink><relatesTo>1</relatesTo><i> chwang@mail.ntust.edu.tw</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Mar2018, Vol. 43 Issue 13, p6481-6490. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Tungsten%22">Tungsten</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Graphene%22">Graphene</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon%22">Carbon</searchLink>
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  Label: Abstract
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  Data: The design and development of inexpensive and highly efficient electrocatalysts for hydrogen production from water splitting are highly crucial for green energy and the hydrogen economy. Herein, we report phosphine reduced an iron-doped tungsten oxide nanoplate/reduced graphene oxide nanocomposite (Fe-WOxP/rGO) as an excellent electrocatalyst for the hydrogen evolution reaction. This electrocatalyst was synthesized using a hydrothermal method, followed by reduction with phosphine (PH 3 ), which was generated from sodium hypophosphite. The catalyst onset potential, Tafel slope, and stability were investigated. Accordingly, Fe-WOxP/rGO exhibited impressively high electrocatalytic activity with a low overpotential of 54.60 mV, which is required to achieve a current density of 10 mAcm −2 . The Tafel slope of 41.99 mV dec −1 and the linear sweep voltammetry curve is almost the same as 2000 cycles and electrolysis under static overpotential (54.60 mV) is remain for more than 24 h in 0.5 M H 2 SO 4 . The catalytic activity and conductivity of Fe-WOxP/rGO were higher than WO X P, Fe-WOxP and WOxP/rGO. Such an outstanding performance of the Fe-WOxP/rGO nanocomposite is attributed to the coupled synergic effect between high oxygen vacancies formation on tungsten oxide in the nanoplate-like structure of Fe-WOxP and rGO nanosheet, making it as an excellent electrocatalyst for hydrogen evolution reaction. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1016/j.ijhydene.2018.02.080
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        Text: English
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        PageCount: 10
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        Type: general
      – SubjectFull: Tungsten
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      – SubjectFull: Composite materials
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      – SubjectFull: Graphene
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      – SubjectFull: Carbon
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      – TitleFull: Highly efficient and durable phosphine reduced iron-doped tungsten oxide/reduced graphene oxide nanocomposites for the hydrogen evolution reaction.
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            NameFull: Wondimu, Tadele Hunde
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              Text: Mar2018
              Type: published
              Y: 2018
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