Efficient hydrogen evolution reaction performance of Ni substituted WS2 nanoflakes
- Title
- Efficient hydrogen evolution reaction performance of Ni substituted WS2 nanoflakes
- Creator
- Joseph A.; Chacko L.; Sanal K.C.; Pineda-Aguilar N.; Jasna M.; Antony A.; Aneesh P.M.
- Description
- We have investigated the structural, optical and electrocatalytic hydrogen evolution reaction (HER) performance of pristine, Co and Ni substituted WS2 nanoflakes synthesised by facile hydrothermal method. The XRD pattern confirms the formation of hexagonal WS2 for both pristine and substituted WS2 nanoflakes. The FESEM images validate the flake-like structure for both pristine and substituted WS2. In addition, we have also analysed the Raman and UV-Vis absorbance spectra of the samples. The electrocatalytic studies reveal that the nickel-substituted WS2 (Ni-WS2) nanoflakes show superior hydrogen evolution (HER) performance compared to cobalt-substituted WS2 (Co-WS2) nanoflakes. Hence, we have varied the Ni concentration and investigated the dependence of Ni content on the electrocatalytic performance. It is found that the electrocatalytic performance of the Ni-WS2 nanoflakes increases with an increase in Ni content owing to the modified edge structures. Thus, our studies suggest Ni substitution in WS2 nanostructures can boost electrocatalytic HER performance. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.
- Source
- Applied Physics A: Materials Science and Processing, Vol-130, No. 12
- Date
- 2024-01-01
- Publisher
- Springer Science and Business Media Deutschland GmbH
- Subject
- Hydrogen evolution reaction; Transition metal dichalcogenides; Two dimensional materials; WS2
- Coverage
- Joseph A., Department of Physics, Central University of Kerala, Tejaswini Hills, Kerala, Periye, Kasaragod, 671320, India; Chacko L., Department of Physics and Electronics, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India; Sanal K.C., Facultad de Ciencias Quicas, Universidad Automa de Nuevo Leon, San Nicolas de los Garza, Mexico; Pineda-Aguilar N., Centro de Investigaci en Materiales Avanzados, S.C. (CIMAV), Subsede Monterrey, Parque de Investigaci e Innovaci on Tecnolica, Apodaca, Mexico; Jasna M., Department of Physics, Cochin University of Science and Technology, Kerala, Kochi, 682022, India, Microelectronics Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, FI-90014, Oulu, Finland; Antony A., Department of Physics, Cochin University of Science and Technology, Kerala, Kochi, 682022, India; Aneesh P.M., Department of Physics, Central University of Kerala, Tejaswini Hills, Kerala, Periye, Kasaragod, 671320, India
- Rights
- Restricted Access
- Relation
- ISSN: 9478396; CODEN: APAMF
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Joseph A.; Chacko L.; Sanal K.C.; Pineda-Aguilar N.; Jasna M.; Antony A.; Aneesh P.M., “Efficient hydrogen evolution reaction performance of Ni substituted WS2 nanoflakes,” CHRIST (Deemed To Be University) Institutional Repository, accessed April 24, 2025, https://archives.christuniversity.in/items/show/12646.