Bifunctionality of MoS2 nanolayer catalyst for water-splitting reactions of hydrogen and oxygen

Rajneesh Kumar Mishra; Vipin Kumar; Le Gia Trung; Gyu Jin Choi; Jeong Won Ryu; Pushpendra Kumar; Rajesh Bhardwaj; Seung Hee Lee; Jin Seog Gwag

doi:10.1016/j.matlet.2023.134026

Bifunctionality of MoS₂ nanolayer catalyst for water-splitting reactions of hydrogen and oxygen

Rajneesh Kumar Mishra
, Vipin Kumar
, Le Gia Trung
, Gyu Jin Choi
, Jeong Won Ryu
, Pushpendra Kumar
, Rajesh Bhardwaj
, Seung Hee Lee
, Jin Seog Gwag^*

^*Corresponding author for this work

Department of Polymer -Nano Science &Technology

Yeungnam University
Manipal University Jaipur
University of Jammu

Research output: Contribution to journal › Journal article › peer-review

11 Scopus citations

Abstract

This letter shows the solvothermal method synthesized MoS₂ nanolayers for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) applications. The evaluated overpotential values of OER and HER of the MoS₂ catalyst are 340 mV and 136 mV. The calculated values of OER and HER Tafel slopes are 189 mV dec⁻¹ and 120 mV dec⁻¹. In addition, the EIS spectra outline the charge-transfer resistances of 9.72 Ω and 11.87 Ω and series resistances of 0.78 Ω and 1.06 Ω of HER and OER. Furthermore, the HER reaction mechanism has been discussed to illustrate insights into the MoS₂ nanolayer catalyst to explore its tremendous catalytic capabilities.

Original language	English
Article number	134026
Journal	Materials Letters
Volume	338
DOIs	https://doi.org/10.1016/j.matlet.2023.134026
State	Published - 2023.05.1

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Bifunctional electrocatalyst
Hydrogen evolution reaction
Mechanism
MoS nanolayers
Oxygen evolution reaction

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Engineering - Mechanical
Physics & Astronomy

Access to Document

10.1016/j.matlet.2023.134026

Cite this

@article{c50b7d834a2d4cd586e02bcf3aef1f96,

title = "Bifunctionality of MoS2 nanolayer catalyst for water-splitting reactions of hydrogen and oxygen",

abstract = "This letter shows the solvothermal method synthesized MoS2 nanolayers for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) applications. The evaluated overpotential values of OER and HER of the MoS2 catalyst are 340 mV and 136 mV. The calculated values of OER and HER Tafel slopes are 189 mV dec−1 and 120 mV dec−1. In addition, the EIS spectra outline the charge-transfer resistances of 9.72 Ω and 11.87 Ω and series resistances of 0.78 Ω and 1.06 Ω of HER and OER. Furthermore, the HER reaction mechanism has been discussed to illustrate insights into the MoS2 nanolayer catalyst to explore its tremendous catalytic capabilities.",

keywords = "Bifunctional electrocatalyst, Hydrogen evolution reaction, Mechanism, MoS nanolayers, Oxygen evolution reaction",

author = "Mishra, \{Rajneesh Kumar\} and Vipin Kumar and Trung, \{Le Gia\} and Choi, \{Gyu Jin\} and Ryu, \{Jeong Won\} and Pushpendra Kumar and Rajesh Bhardwaj and Lee, \{Seung Hee\} and Gwag, \{Jin Seog\}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = may,

day = "1",

doi = "10.1016/j.matlet.2023.134026",

language = "English",

volume = "338",

journal = "Materials Letters",

issn = "0167-577X",

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TY - JOUR

T1 - Bifunctionality of MoS2 nanolayer catalyst for water-splitting reactions of hydrogen and oxygen

AU - Mishra, Rajneesh Kumar

AU - Kumar, Vipin

AU - Trung, Le Gia

AU - Choi, Gyu Jin

AU - Ryu, Jeong Won

AU - Kumar, Pushpendra

AU - Bhardwaj, Rajesh

AU - Lee, Seung Hee

AU - Gwag, Jin Seog

PY - 2023/5/1

Y1 - 2023/5/1

N2 - This letter shows the solvothermal method synthesized MoS2 nanolayers for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) applications. The evaluated overpotential values of OER and HER of the MoS2 catalyst are 340 mV and 136 mV. The calculated values of OER and HER Tafel slopes are 189 mV dec−1 and 120 mV dec−1. In addition, the EIS spectra outline the charge-transfer resistances of 9.72 Ω and 11.87 Ω and series resistances of 0.78 Ω and 1.06 Ω of HER and OER. Furthermore, the HER reaction mechanism has been discussed to illustrate insights into the MoS2 nanolayer catalyst to explore its tremendous catalytic capabilities.

AB - This letter shows the solvothermal method synthesized MoS2 nanolayers for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) applications. The evaluated overpotential values of OER and HER of the MoS2 catalyst are 340 mV and 136 mV. The calculated values of OER and HER Tafel slopes are 189 mV dec−1 and 120 mV dec−1. In addition, the EIS spectra outline the charge-transfer resistances of 9.72 Ω and 11.87 Ω and series resistances of 0.78 Ω and 1.06 Ω of HER and OER. Furthermore, the HER reaction mechanism has been discussed to illustrate insights into the MoS2 nanolayer catalyst to explore its tremendous catalytic capabilities.

KW - Bifunctional electrocatalyst

KW - Hydrogen evolution reaction

KW - Mechanism

KW - MoS nanolayers

KW - Oxygen evolution reaction

UR - https://www.scopus.com/pages/publications/85147856369

U2 - 10.1016/j.matlet.2023.134026

DO - 10.1016/j.matlet.2023.134026

M3 - Journal article

AN - SCOPUS:85147856369

SN - 0167-577X

VL - 338

JO - Materials Letters

JF - Materials Letters

M1 - 134026

ER -