Facile One-Step Microwave-Assisted Method to Synthesize Nickel Selenide Nanosheets for High-Performance Hybrid Supercapacitor

Waqar Younas; Muhammad Naveed; Chuanbao Cao; Youqi Zhu; Changliang Du; Xilan Ma; Nouraiz Mushtaq; Muhammad Tahir; Muhammad Naeem

doi:10.1016/j.jcis.2021.09.153

Facile One-Step Microwave-Assisted Method to Synthesize Nickel Selenide Nanosheets for High-Performance Hybrid Supercapacitor

J Colloid Interface Sci. 2022 Feb 15;608(Pt 1):1005-1014. doi: 10.1016/j.jcis.2021.09.153. Epub 2021 Oct 5.

Authors

Waqar Younas¹, Muhammad Naveed¹, Chuanbao Cao², Youqi Zhu¹, Changliang Du¹, Xilan Ma³, Nouraiz Mushtaq¹, Muhammad Tahir¹, Muhammad Naeem¹

Affiliations

¹ Research Center of Materials Science, Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing Institute of Technology, Beijing 100081, China.
² Research Center of Materials Science, Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing Institute of Technology, Beijing 100081, China. Electronic address: cbcao@bit.edu.cn.
³ Research Center of Materials Science, Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, Beijing Institute of Technology, Beijing 100081, China. Electronic address: maxilan@bit.edu.cn.

PMID: 34785449
DOI: 10.1016/j.jcis.2021.09.153

Abstract

Nanosheets structures can be employed as the most promising electrode material to enhance electrochemical performance for supercapacitors. Nickel Selenide (Ni_0.85Se) nanosheets are synthesized using a rapid microwave synthesis method in a single step. The Ni_0.85Se nanosheets possess a high surface area (125 m²g^-1) with a hexagonal crystalline structure. It shows magnificent electrochemical properties, such as splendid specific capacitance (2530 Fg^-1 at 0.5 Ag^-1). An asymmetric hybrid supercapacitor is fabricated with nickel selenide nanosheets as a positive electrode and activated carbon as a negative electrode. The assembled hybrid supercapacitor displays a high energy density of 63.5 WhKg^-1 at a power density of 404 WKg^-1, and after 8000 cycles, only 5% capacitance is lost along with the better voltage window at 0-1.6 V.

Keywords: Hybrid supercapacitor (SC); Microwave-assisted synthesis; Nanocomposite; Ni(0.85)Se nanosheets.