Promising cobalt oxide and cobalt oxide/silver photocathodes for photoelectrochemical water splitting

Zhifeng Liu; Chonghao Ma; Qijun Cai; Tiantian Hong; Keying Guo; Lu Yan

doi:10.1016/j.solmat.2016.11.026

Promising cobalt oxide and cobalt oxide/silver photocathodes for photoelectrochemical water splitting

Zhifeng Liu^*, Chonghao Ma, Qijun Cai, Tiantian Hong, Keying Guo, Lu Yan

^*Corresponding author for this work

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

25 Scopus citations

Abstract

In this paper, novel promising photoelectrochemical electrodes of CoO nanowires and cocatalyst (Ag) modified CoO nanowires are prepared and studied in photoelectrochemical water splitting exhibiting an efficient photoelectrochemical activity for the first time. Detailed growth mechanisms for CoO nanowires and CoO/Ag nanowires are discussed. The effect of Ag is investigated. The enhanced absorption spectrum and photoelectrochemical performance are characterized. The photocurrent density of CoO/Ag nanowires reaches −1.10 mA cm⁻² due to a high efficiency of light-harvesting, the high holes mobility via the direct pathways and increased interfacial electrons transfer of Ag nanoparticles. Such CoO-based catalysts may lead to effective photoelectrochemical activity and can be promising building blocks in photoelectrochemical water splitting systems.

Original language	English
Pages (from-to)	46-51
Number of pages	6
Journal	Solar Energy Materials and Solar Cells
Volume	161
DOIs	https://doi.org/10.1016/j.solmat.2016.11.026
State	Published - 1 Mar 2017
Externally published	Yes

Keywords

Cobalt oxide
Cocatalyst
Nanowires
Photoelectrochemical
Water splitting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.solmat.2016.11.026

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title = "Promising cobalt oxide and cobalt oxide/silver photocathodes for photoelectrochemical water splitting",

abstract = "In this paper, novel promising photoelectrochemical electrodes of CoO nanowires and cocatalyst (Ag) modified CoO nanowires are prepared and studied in photoelectrochemical water splitting exhibiting an efficient photoelectrochemical activity for the first time. Detailed growth mechanisms for CoO nanowires and CoO/Ag nanowires are discussed. The effect of Ag is investigated. The enhanced absorption spectrum and photoelectrochemical performance are characterized. The photocurrent density of CoO/Ag nanowires reaches −1.10 mA cm−2 due to a high efficiency of light-harvesting, the high holes mobility via the direct pathways and increased interfacial electrons transfer of Ag nanoparticles. Such CoO-based catalysts may lead to effective photoelectrochemical activity and can be promising building blocks in photoelectrochemical water splitting systems.",

keywords = "Cobalt oxide, Cocatalyst, Nanowires, Photoelectrochemical, Water splitting",

author = "Zhifeng Liu and Chonghao Ma and Qijun Cai and Tiantian Hong and Keying Guo and Lu Yan",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

month = mar,

day = "1",

doi = "10.1016/j.solmat.2016.11.026",

language = "英语",

volume = "161",

pages = "46--51",

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issn = "0927-0248",

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TY - JOUR

T1 - Promising cobalt oxide and cobalt oxide/silver photocathodes for photoelectrochemical water splitting

AU - Liu, Zhifeng

AU - Ma, Chonghao

AU - Cai, Qijun

AU - Hong, Tiantian

AU - Guo, Keying

AU - Yan, Lu

PY - 2017/3/1

Y1 - 2017/3/1

N2 - In this paper, novel promising photoelectrochemical electrodes of CoO nanowires and cocatalyst (Ag) modified CoO nanowires are prepared and studied in photoelectrochemical water splitting exhibiting an efficient photoelectrochemical activity for the first time. Detailed growth mechanisms for CoO nanowires and CoO/Ag nanowires are discussed. The effect of Ag is investigated. The enhanced absorption spectrum and photoelectrochemical performance are characterized. The photocurrent density of CoO/Ag nanowires reaches −1.10 mA cm−2 due to a high efficiency of light-harvesting, the high holes mobility via the direct pathways and increased interfacial electrons transfer of Ag nanoparticles. Such CoO-based catalysts may lead to effective photoelectrochemical activity and can be promising building blocks in photoelectrochemical water splitting systems.

AB - In this paper, novel promising photoelectrochemical electrodes of CoO nanowires and cocatalyst (Ag) modified CoO nanowires are prepared and studied in photoelectrochemical water splitting exhibiting an efficient photoelectrochemical activity for the first time. Detailed growth mechanisms for CoO nanowires and CoO/Ag nanowires are discussed. The effect of Ag is investigated. The enhanced absorption spectrum and photoelectrochemical performance are characterized. The photocurrent density of CoO/Ag nanowires reaches −1.10 mA cm−2 due to a high efficiency of light-harvesting, the high holes mobility via the direct pathways and increased interfacial electrons transfer of Ag nanoparticles. Such CoO-based catalysts may lead to effective photoelectrochemical activity and can be promising building blocks in photoelectrochemical water splitting systems.

KW - Cobalt oxide

KW - Cocatalyst

KW - Nanowires

KW - Photoelectrochemical

KW - Water splitting

UR - http://www.scopus.com/inward/record.url?scp=84998636592&partnerID=8YFLogxK

U2 - 10.1016/j.solmat.2016.11.026

DO - 10.1016/j.solmat.2016.11.026

M3 - 文章

AN - SCOPUS:84998636592

SN - 0927-0248

VL - 161

SP - 46

EP - 51

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -

Promising cobalt oxide and cobalt oxide/silver photocathodes for photoelectrochemical water splitting

Abstract

Keywords

UN SDGs

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