LAPSE:2023.31023
Published Article
LAPSE:2023.31023
Synergistic Germanium-Decorated h-BN/MoS2 Heterostructure Nanosheets: An Advanced Electrocatalyst for Energy Storage Applications
April 17, 2023
Abstract
Increasing concerns about the vulnerability of the world’s energy supply and the necessity to implement sustainable technologies have prompted researchers to develop high-performance electrocatalysts that are affordable and efficient for converting and storing renewable energy. This article reports a facile approach to fabricating two-dimensional (2D) Ge-decorated h-BN/MoS2 heterostructure nanosheets by self-assembly for multiple electrochemical applications such as supercapacitor and hydrogen evolution reactions. The organization of the physical and chemical links between the germanium modulations on the heterostructure of boron nitride/molybdenum sulphide (Ge/h-BN/MoS2) were facilitated to generate more active sites. Furthermore, the asymmetric supercapacitor of Ge-decorated h-BN/MoS2 amplified the capacitance to 558.53 F g−1 at 1 A g−1 current density and 159.19 F g−1 at 10 A g−1, in addition to a retention rate of 85.69% after 2000 cycles. Moreover, the Ge-decorated h-BN/MoS2 catalyst realized a low over-potential value, with an RHE of 0.57 (HER) at 5 mA/cm2, a Tafel value of ∼204 mV/dec, and long-term electrolysis stability of 10 h. This work may open the door for further investigations on metal-decorated heterostructures, which have a significant potential for both supercapacitor and water-splitting applications.
Increasing concerns about the vulnerability of the world’s energy supply and the necessity to implement sustainable technologies have prompted researchers to develop high-performance electrocatalysts that are affordable and efficient for converting and storing renewable energy. This article reports a facile approach to fabricating two-dimensional (2D) Ge-decorated h-BN/MoS2 heterostructure nanosheets by self-assembly for multiple electrochemical applications such as supercapacitor and hydrogen evolution reactions. The organization of the physical and chemical links between the germanium modulations on the heterostructure of boron nitride/molybdenum sulphide (Ge/h-BN/MoS2) were facilitated to generate more active sites. Furthermore, the asymmetric supercapacitor of Ge-decorated h-BN/MoS2 amplified the capacitance to 558.53 F g−1 at 1 A g−1 current density and 159.19 F g−1 at 10 A g−1, in addition to a retention rate of 85.69% after 2000 cycles. Moreover, the Ge-decorated h-BN/MoS2 catalyst realized a low over-potential value, with an RHE of 0.57 (HER) at 5 mA/cm2, a Tafel value of ∼204 mV/dec, and long-term electrolysis stability of 10 h. This work may open the door for further investigations on metal-decorated heterostructures, which have a significant potential for both supercapacitor and water-splitting applications.
Record ID
Keywords
electrocatalysis, energy storage application, Ge/h-BN/MoS2, hydrogen evolution reaction, layered heterostructure
Subject
Suggested Citation
Saravanan M, Palanisamy R, Sethuraman V, Diwakar K, Kumar PS, Venkatesh PS, Kannan N, Kingston RJ, Aravinth K, Kim J. Synergistic Germanium-Decorated h-BN/MoS2 Heterostructure Nanosheets: An Advanced Electrocatalyst for Energy Storage Applications. (2023). LAPSE:2023.31023
Author Affiliations
Saravanan M: Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India; Department of Physics, University College of Engineering, Bharathidasan Institute of Technology Campus, Anna University, Tiruchirapalli 62002
Palanisamy R: Department of Mechanical Engineering, Yeungnam University, Gyeongbuk-do, Gyeongsan-si 38541, Republic of Korea [ORCID]
Sethuraman V: Research and Development, New Energy Storage Technology, Lithium-ion Battery Division, Amara Raja Battery Ltd., Karakambadi, Tirupati 517520, Andhra Pradesh, India
Diwakar K: Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India; Mechanical Engineering and Applied Mechanics, University of Pennsylvania, 3205 Walnut Street, Philadelphia, PA 19104, USA
Kumar PS: Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India
Venkatesh PS: Nanomaterials Laboratory, Department of Physics, Sri S. Ramasamy Naidu Memorial College, Sattur 626203, Tamil Nadu, India
Kannan N: Nanomaterials Laboratory, Department of Physics, Sri S. Ramasamy Naidu Memorial College, Sattur 626203, Tamil Nadu, India
Kingston RJ: Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India [ORCID]
Aravinth K: Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India
Kim J: Department of Mechanical Engineering, Yeungnam University, Gyeongbuk-do, Gyeongsan-si 38541, Republic of Korea [ORCID]
Palanisamy R: Department of Mechanical Engineering, Yeungnam University, Gyeongbuk-do, Gyeongsan-si 38541, Republic of Korea [ORCID]
Sethuraman V: Research and Development, New Energy Storage Technology, Lithium-ion Battery Division, Amara Raja Battery Ltd., Karakambadi, Tirupati 517520, Andhra Pradesh, India
Diwakar K: Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India; Mechanical Engineering and Applied Mechanics, University of Pennsylvania, 3205 Walnut Street, Philadelphia, PA 19104, USA
Kumar PS: Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India
Venkatesh PS: Nanomaterials Laboratory, Department of Physics, Sri S. Ramasamy Naidu Memorial College, Sattur 626203, Tamil Nadu, India
Kannan N: Nanomaterials Laboratory, Department of Physics, Sri S. Ramasamy Naidu Memorial College, Sattur 626203, Tamil Nadu, India
Kingston RJ: Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India [ORCID]
Aravinth K: Research Centre, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India
Kim J: Department of Mechanical Engineering, Yeungnam University, Gyeongbuk-do, Gyeongsan-si 38541, Republic of Korea [ORCID]
Journal Name
Energies
Volume
16
Issue
7
First Page
3286
Year
2023
Publication Date
2023-04-06
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en16073286, Publication Type: Journal Article
Record Map
Published Article
LAPSE:2023.31023
This Record
External Link
https://doi.org/10.3390/en16073286
Publisher Version
Download
Meta
Record Statistics
Record Views
238
Version History
[v1] (Original Submission)
Apr 17, 2023
Verified by curator on
Apr 17, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.31023
Record Owner
Auto Uploader for LAPSE
Links to Related Works
(0.09 seconds)
[0.09 s]