Hydrogen plasma reduced black [Formula presented] nanowires for enhanced photoelectrochemical water-splitting

Zhangliu Tian; Huolei Cui; Guilian Zhu; Wenli Zhao; JiJian Xu; Feng Shao; Jianqiao He; Fuqiang Huang

doi:10.1016/j.jpowsour.2016.06.074

Hydrogen plasma reduced black [Formula presented] nanowires for enhanced photoelectrochemical water-splitting

Zhangliu Tian
, Huolei Cui
, Guilian Zhu
, Wenli Zhao
, JiJian Xu
, Feng Shao
, Jianqiao He
, Fuqiang Huang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

67 Citations (Scopus)

Abstract

Black TiO₂ with various nanostructures and phase constitutions have been reported to exhibit excellent photocatalytic and photoelectrochemical (PEC) performance. Here, we report the fabrication of black nanostructured TiO₂[Formula presented] through hydrogen plasma assisted reduction and its enhanced PEC properties for the first time. Both the obtained TiO₂[Formula presented] and black TiO₂[Formula presented] are single crystalline nanowires, while the black TiO₂[Formula presented] samples exhibit much stronger visible and infrared light absorption. The optimal black TiO₂[Formula presented] sample obtained by hydrogen plasma treatment at 425 °C yields a photocurrent density of 0.85 mA cm⁻², a rather low onset potential of −0.937 V_Ag/AgCl and a high applied bias photon-to-current efficiency (ABPE) of 0.363%, which is far superior to the TiO₂[Formula presented] (0.15 mA cm⁻² photocurrent, −0.917 V_Ag/AgCl onset potential and 0.138% ABPE). The significantly enhanced PEC performance of the black TiO₂[Formula presented] is ascribed to the introduction of moderate surface oxygen vacancies. These results indicate that the black TiO₂[Formula presented] is a promising material for PEC application and solar energy utilization. © 2016

Original language	English
Pages (from-to)	697-705
Journal	Journal of Power Sources
Volume	325
DOIs	https://doi.org/10.1016/j.jpowsour.2016.06.074
Publication status	Published - 1 Sept 2016
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Black TiO2[Formula presented]
Hydrogen plasma
Oxygen vacancies
Photocurrent density
Photoelectrochemical performance

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10.1016/j.jpowsour.2016.06.074

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@article{78bdccf1d47a4966a5a84d92d8b8efb6,

title = "Hydrogen plasma reduced black [Formula presented] nanowires for enhanced photoelectrochemical water-splitting",

abstract = "Black TiO2 with various nanostructures and phase constitutions have been reported to exhibit excellent photocatalytic and photoelectrochemical (PEC) performance. Here, we report the fabrication of black nanostructured TiO2[Formula presented] through hydrogen plasma assisted reduction and its enhanced PEC properties for the first time. Both the obtained TiO2[Formula presented] and black TiO2[Formula presented] are single crystalline nanowires, while the black TiO2[Formula presented] samples exhibit much stronger visible and infrared light absorption. The optimal black TiO2[Formula presented] sample obtained by hydrogen plasma treatment at 425 °C yields a photocurrent density of 0.85 mA cm−2, a rather low onset potential of −0.937 VAg/AgCl and a high applied bias photon-to-current efficiency (ABPE) of 0.363\%, which is far superior to the TiO2[Formula presented] (0.15 mA cm−2 photocurrent, −0.917 VAg/AgCl onset potential and 0.138\% ABPE). The significantly enhanced PEC performance of the black TiO2[Formula presented] is ascribed to the introduction of moderate surface oxygen vacancies. These results indicate that the black TiO2[Formula presented] is a promising material for PEC application and solar energy utilization. {\textcopyright} 2016",

keywords = "Black TiO2[Formula presented], Hydrogen plasma, Oxygen vacancies, Photocurrent density, Photoelectrochemical performance",

author = "Zhangliu Tian and Huolei Cui and Guilian Zhu and Wenli Zhao and JiJian Xu and Feng Shao and Jianqiao He and Fuqiang Huang",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected]. ",

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doi = "10.1016/j.jpowsour.2016.06.074",

language = "English",

volume = "325",

pages = "697--705",

journal = "Journal of Power Sources",

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TY - JOUR

T1 - Hydrogen plasma reduced black [Formula presented] nanowires for enhanced photoelectrochemical water-splitting

AU - Tian, Zhangliu

AU - Cui, Huolei

AU - Zhu, Guilian

AU - Zhao, Wenli

AU - Xu, JiJian

AU - Shao, Feng

AU - He, Jianqiao

AU - Huang, Fuqiang

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2016/9/1

Y1 - 2016/9/1

N2 - Black TiO2 with various nanostructures and phase constitutions have been reported to exhibit excellent photocatalytic and photoelectrochemical (PEC) performance. Here, we report the fabrication of black nanostructured TiO2[Formula presented] through hydrogen plasma assisted reduction and its enhanced PEC properties for the first time. Both the obtained TiO2[Formula presented] and black TiO2[Formula presented] are single crystalline nanowires, while the black TiO2[Formula presented] samples exhibit much stronger visible and infrared light absorption. The optimal black TiO2[Formula presented] sample obtained by hydrogen plasma treatment at 425 °C yields a photocurrent density of 0.85 mA cm−2, a rather low onset potential of −0.937 VAg/AgCl and a high applied bias photon-to-current efficiency (ABPE) of 0.363%, which is far superior to the TiO2[Formula presented] (0.15 mA cm−2 photocurrent, −0.917 VAg/AgCl onset potential and 0.138% ABPE). The significantly enhanced PEC performance of the black TiO2[Formula presented] is ascribed to the introduction of moderate surface oxygen vacancies. These results indicate that the black TiO2[Formula presented] is a promising material for PEC application and solar energy utilization. © 2016

AB - Black TiO2 with various nanostructures and phase constitutions have been reported to exhibit excellent photocatalytic and photoelectrochemical (PEC) performance. Here, we report the fabrication of black nanostructured TiO2[Formula presented] through hydrogen plasma assisted reduction and its enhanced PEC properties for the first time. Both the obtained TiO2[Formula presented] and black TiO2[Formula presented] are single crystalline nanowires, while the black TiO2[Formula presented] samples exhibit much stronger visible and infrared light absorption. The optimal black TiO2[Formula presented] sample obtained by hydrogen plasma treatment at 425 °C yields a photocurrent density of 0.85 mA cm−2, a rather low onset potential of −0.937 VAg/AgCl and a high applied bias photon-to-current efficiency (ABPE) of 0.363%, which is far superior to the TiO2[Formula presented] (0.15 mA cm−2 photocurrent, −0.917 VAg/AgCl onset potential and 0.138% ABPE). The significantly enhanced PEC performance of the black TiO2[Formula presented] is ascribed to the introduction of moderate surface oxygen vacancies. These results indicate that the black TiO2[Formula presented] is a promising material for PEC application and solar energy utilization. © 2016

KW - Black TiO2[Formula presented]

KW - Hydrogen plasma

KW - Oxygen vacancies

KW - Photocurrent density

KW - Photoelectrochemical performance

UR - https://www.scopus.com/pages/publications/84976495235

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84976495235&origin=recordpage

U2 - 10.1016/j.jpowsour.2016.06.074

DO - 10.1016/j.jpowsour.2016.06.074

M3 - RGC 21 - Publication in refereed journal

SN - 0378-7753

VL - 325

SP - 697

EP - 705

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Hydrogen plasma reduced black [Formula presented] nanowires for enhanced photoelectrochemical water-splitting

Abstract

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Research Keywords

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