Preparation of β-Ni (OH)2 Nanosheet–Modified Glassy Carbon for Pseudocapacitors

Authors

Muhammad Buchari Setia Putra, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
Aliyah Aliyah, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
Afiten Rahmin Sanjaya, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
Respati Kevin Pramadewandaru, Department of Materials and Metallurgical Engineering, Faculty of Industrial Technology and Systems Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
Hoeil Chung, Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, South Korea
Tribidasari Anggraningrum Ivandini, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, IndonesiaFollow

Abstract

β-Nickel hydroxide (Ni(OH)₂) nanosheet–modified glassy carbon for pseudocapacitors was successfully prepared. The nanosheets were synthesized via a conventional growth seeding method combined with hydrothermal treatment. Transmission electron microscopy (TEM) characterization indicated the hexagonal structure of the nanosheets of around 15 nm in size, and X-ray diffraction (XRD) pattern confirmed the β-phase lattice crystal. These nanosheets used to modify the glassy carbon surface, increased the electroactive surface area by around 15 times. Furthermore, electrochemical investigation of the modified glassy carbon revealed an excellent performance and a specific capacitance of 628.01 F g⁻¹ at a 1 A g⁻¹ current density. Moreover, an outstanding stability was demonstrated, with 89.9% retention of the capacitance observed after 3000 cycles at a 1 A g⁻¹ current density.

Recommended Citation

Putra, Muhammad Buchari Setia; Aliyah, Aliyah; Sanjaya, Afiten Rahmin; Pramadewandaru, Respati Kevin; Chung, Hoeil; and Ivandini, Tribidasari Anggraningrum (2024) "Preparation of β-Ni (OH)2 Nanosheet–Modified Glassy Carbon for Pseudocapacitors," Makara Journal of Science: Vol. 28: Iss. 2, Article 10.
DOI: 10.7454/mss.v28i2.2262
Available at: https://scholarhub.ui.ac.id/science/vol28/iss2/10