Silver-doped cadmium sulfide for electrochemical water oxidation
- PDF / 2,451,634 Bytes
- 8 Pages / 595.276 x 790.866 pts Page_size
- 84 Downloads / 218 Views
ORIGINAL ARTICLE
Silver‑doped cadmium sulfide for electrochemical water oxidation Srinivasan Swathi1 · Rathinam Yuvakkumar1 · Ganesan Ravi1 · Eadi Sunil Babu2 · Dhayalan Velauthapillai3 · Asad Syed4 · Turki M S Dawoud4 Received: 28 July 2020 / Accepted: 28 August 2020 © King Abdulaziz City for Science and Technology 2020
Abstract Currently, sustainable energy production is the most needful and challenging factor due to the increase of major energy consumption such as fossil fuels, gas fuels, coal, and petroleum. Hydrolysis technology is one of the promising factors to generate clean energy production. Especially, electrochemical water splitting involves two half reactions, i.e., hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). OER is a four electron process and it possessed a slow kinetics and high overpotential. The aim of this study is to overcome the difficulties of energy consumption, and enhances its kinetic activity and also reduces its overpotential by doping agent. In this study, pristine and 5, 10% Ag-doped CdS nanostructures were synthesized via co-precipitation method. Interestingly, 10% Ag-doped CdS nanostructure exhibits 868.7 F/g specific capacitance at 10 mV/s scan rate. Its OER activity, ion diffusion process, and stability were investigated under the linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS), and chronoamperometry (CA) studies. Ag plays a vital role to overcome the difficulties and it is noteworthy for water splitting applications. Keywords CdS · Co-precipitation method · OER activity
Introduction In today’s world, energy development is one of the necessity tasks for economical growth. Mostly, the energy choices vary and it depends on the land and population. The main important thing is to avoid the nature pollution and to store or utilize the out coming pollutants (CO2) in other useful ways (Edelenbosch et al. 2020). Water splitting is a promising way to produce clean, eco-friendly, and sustainable * Rathinam Yuvakkumar [email protected] * Ganesan Ravi [email protected] * Dhayalan Velauthapillai [email protected] 1
Nanomaterials Laboratory, Department of Physics, Alagappa University, Tamil Nadu, Karaikudi 630 003, India
2
Department of Electronics and Engineering, Chungnam National University, Daejeon 305‑764, South Korea
3
Faculty of Engineering and Science, Western Norway University of Applied Sciences, 5063 Bergen, Norway
4
Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
energy fuels. There are numerous types in water splitting and each and everyone is inevitable in their own way. From these types, electrochemical water splitting is a good choice for sustainable energy conversion and storage (Zhao et al. 2020). Transition metal sulfide materials are the efficient catalysts for both HER and OER. Different metal oxides, metal sulfides, metal phosphides, and semiconductor nanomaterials like ZnO, F e3O4, VS2, MoS2, Ni
Data Loading...
