| Facile synthesis of SmSe2 over multiwalled carbon nanotubes for efficient water-splitting applications |
| Asma M. Alenad1, Salma Aman2, Naseeb Ahmad2, Abdul Rasheed Rashid3, Abdul Ghafoor Abid3, Sumaira Manzoor3, Mehar Un Nisa3, Mouslim Messali4, Huda A. Alzahrani5, Taha Abdel Mohaymen Taha6 |
1Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia
2Institute of Physics, Khwaja Fareed University of Engineering and Information Technology, Abu Dhabi Road, Rahim Yar Khan, 64200, Pakistan
3Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
4Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University, P.O. Box 90950, 11623, Riyadh, Saudi Arabia
5Department of Physics, College of Science, Taif University, P.O. Box 11099, 21944, Taif, Saudi Arabia
6Physics Department, College of Science, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia |
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Received: November 25, 2022; Revised: May 23, 2023 Accepted: August 25, 2023. Published online: September 21, 2023. |
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| ABSTRACT |
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The next generation of lightweight, flexible electronic equipment allows mechanical bending compatible with roll-to-roll technologies. In a novel method, a hydrothermal, wide potential is applied for the synthesis of samarium selenide–multiwalled carbon nanotubes (SmSe2–MWCNT) composite material. The chemical and physical characteristics for SmSe2–MWCNT are investigated with electrochemical assessments and X-ray diffraction (XRD) as well as via scanning electron microscopy (SEM). Under alkaline conditions, the SmSe2/MWCNT electrocatalyst shows a good activity for oxygen evolution reaction (OER). SmSe2–MWCNT nanocomposites appear to be good OER candidates in alkaline environments because of high ratio of catalytically active sites and faster electron movement, which increased the material’s conductivity, with current density, overpotential, and Tafel slope of 10 mA cm-2, 315 mV, and 73 mV dec-1, respectively, and displayed decent stability of 20 h via chronoamperometry test. The findings demonstrate that the SmSe2–MWCNT electrode could be employed as a potential candidate for hydrogen production. |
| Key words:
SmSe2/MWCNT · Energy crisis · Alkaline media · OER |
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