Constructing Ohmic contact in cobalt selenide/Ti dyadic electrode: The third aspect to promote the oxygen evolution reaction

Jun Jun Zhang; Hui Su; Hong Hui Wang; Zhong Hua Xue; Bing Zhang; Xiao Wei; Xin Hao Li; Shin Ichi Hirano; Jie Sheng Chen

doi:10.1016/j.nanoen.2017.07.008

Constructing Ohmic contact in cobalt selenide/Ti dyadic electrode: The third aspect to promote the oxygen evolution reaction

Jun Jun Zhang, Hui Su, Hong Hui Wang, Zhong Hua Xue, Bing Zhang, Xiao Wei, Xin Hao Li^*, Shin Ichi Hirano, Jie Sheng Chen

^*Corresponding author for this work

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

41 Scopus citations

Abstract

Oxygen evolution reaction (OER) is a kinetically slow process for overall water splitting, particularly in neutral electrolyte. Great efforts have been devoted to the control in either composition or mesoscale structure of the nanocatalysts for accelerating the OER performance. However, the interface between the nanocatalysts and current collector, the third aspect to be considered for the design of an OER dyadic electrode, has been less touched till now. As a proof-of-concept study here, we described the importance of constructing an Ohmic contact at the interface of the cobalt selenide nanostructures (as the active components) and the Ti mesh (as the current collector) to significantly promote the OER performance in neutral electrolyte. The cobalt selenide/Ti mesh hybrid electrode could provide a current density of 29.6 mA cm⁻² at an OER overpotential of 570 mV and high durability in neutral medium.

Original language	English (US)
Pages (from-to)	321-327
Number of pages	7
Journal	Nano Energy
Volume	39
DOIs	https://doi.org/10.1016/j.nanoen.2017.07.008
State	Published - Sep 2017

Bibliographical note

Funding Information:
This work was supported by National Basic Research Program of China (2013CB934102), National Natural Science Foundation of China (21331004, 21673140, 21671134), Innovation Program of Shanghai Science and Technology Committee (16JC1401600), Shanghai Eastern Scholar Program, Shanghai Rising-Star Program (16QA1402100) and SJTU-MPI partner group.

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

Cobalt selenide
Neutral
Ohmic contact
Oxygen evolution reaction
Ti mesh

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science
Electrical and Electronic Engineering

UN SDGs

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

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10.1016/j.nanoen.2017.07.008

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title = "Constructing Ohmic contact in cobalt selenide/Ti dyadic electrode: The third aspect to promote the oxygen evolution reaction",

abstract = "Oxygen evolution reaction (OER) is a kinetically slow process for overall water splitting, particularly in neutral electrolyte. Great efforts have been devoted to the control in either composition or mesoscale structure of the nanocatalysts for accelerating the OER performance. However, the interface between the nanocatalysts and current collector, the third aspect to be considered for the design of an OER dyadic electrode, has been less touched till now. As a proof-of-concept study here, we described the importance of constructing an Ohmic contact at the interface of the cobalt selenide nanostructures (as the active components) and the Ti mesh (as the current collector) to significantly promote the OER performance in neutral electrolyte. The cobalt selenide/Ti mesh hybrid electrode could provide a current density of 29.6 mA cm−2 at an OER overpotential of 570 mV and high durability in neutral medium.",

keywords = "Cobalt selenide, Neutral, Ohmic contact, Oxygen evolution reaction, Ti mesh",

author = "Zhang, {Jun Jun} and Hui Su and Wang, {Hong Hui} and Xue, {Zhong Hua} and Bing Zhang and Xiao Wei and Li, {Xin Hao} and Hirano, {Shin Ichi} and Chen, {Jie Sheng}",

note = "Funding Information: This work was supported by National Basic Research Program of China (2013CB934102), National Natural Science Foundation of China (21331004, 21673140, 21671134), Innovation Program of Shanghai Science and Technology Committee (16JC1401600), Shanghai Eastern Scholar Program, Shanghai Rising-Star Program (16QA1402100) and SJTU-MPI partner group. Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

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language = "English (US)",

volume = "39",

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T1 - Constructing Ohmic contact in cobalt selenide/Ti dyadic electrode

T2 - The third aspect to promote the oxygen evolution reaction

AU - Zhang, Jun Jun

AU - Su, Hui

AU - Wang, Hong Hui

AU - Xue, Zhong Hua

AU - Zhang, Bing

AU - Wei, Xiao

AU - Li, Xin Hao

AU - Hirano, Shin Ichi

AU - Chen, Jie Sheng

N1 - Funding Information: This work was supported by National Basic Research Program of China (2013CB934102), National Natural Science Foundation of China (21331004, 21673140, 21671134), Innovation Program of Shanghai Science and Technology Committee (16JC1401600), Shanghai Eastern Scholar Program, Shanghai Rising-Star Program (16QA1402100) and SJTU-MPI partner group. Publisher Copyright: © 2017 Elsevier Ltd

PY - 2017/9

Y1 - 2017/9

N2 - Oxygen evolution reaction (OER) is a kinetically slow process for overall water splitting, particularly in neutral electrolyte. Great efforts have been devoted to the control in either composition or mesoscale structure of the nanocatalysts for accelerating the OER performance. However, the interface between the nanocatalysts and current collector, the third aspect to be considered for the design of an OER dyadic electrode, has been less touched till now. As a proof-of-concept study here, we described the importance of constructing an Ohmic contact at the interface of the cobalt selenide nanostructures (as the active components) and the Ti mesh (as the current collector) to significantly promote the OER performance in neutral electrolyte. The cobalt selenide/Ti mesh hybrid electrode could provide a current density of 29.6 mA cm−2 at an OER overpotential of 570 mV and high durability in neutral medium.

AB - Oxygen evolution reaction (OER) is a kinetically slow process for overall water splitting, particularly in neutral electrolyte. Great efforts have been devoted to the control in either composition or mesoscale structure of the nanocatalysts for accelerating the OER performance. However, the interface between the nanocatalysts and current collector, the third aspect to be considered for the design of an OER dyadic electrode, has been less touched till now. As a proof-of-concept study here, we described the importance of constructing an Ohmic contact at the interface of the cobalt selenide nanostructures (as the active components) and the Ti mesh (as the current collector) to significantly promote the OER performance in neutral electrolyte. The cobalt selenide/Ti mesh hybrid electrode could provide a current density of 29.6 mA cm−2 at an OER overpotential of 570 mV and high durability in neutral medium.

KW - Cobalt selenide

KW - Neutral

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KW - Oxygen evolution reaction

KW - Ti mesh

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M3 - Article

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SN - 2211-2855

VL - 39

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ER -

Constructing Ohmic contact in cobalt selenide/Ti dyadic electrode: The third aspect to promote the oxygen evolution reaction

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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