Next Article in Journal
Picosecond Laser-Induced Hierarchical Periodic Near- and Deep-Subwavelength Ripples on Stainless-Steel Surfaces
Previous Article in Journal
First Proof-of-Principle of Inorganic Lead Halide Perovskites Deposition by Magnetron-Sputtering
Previous Article in Special Issue
Activated Carbon-Decorated Spherical Silicon Nanocrystal Composites Synchronously-Derived from Rice Husks for Anodic Source of Lithium-Ion Battery
Open AccessArticle

Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications

1
Department of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922, Korea
2
School of Environmental Engineering, University of Seoul, 163 Seoulsiripdaero, Dongdaemun-gu, Seoul 02504, Korea
3
Department of Nano & Advanced Materials Engineering, Jeonju University, 303 Cheonjam-ro, Jeonju 55069, Korea
4
A Carbon Valley R&D Division, Korea Institute of Carbon Convergence Technology, 110-11 Banryong-ro, Jeonju 54853, Korea
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(1), 61; https://doi.org/10.3390/nano10010061
Received: 22 November 2019 / Revised: 16 December 2019 / Accepted: 24 December 2019 / Published: 26 December 2019
(This article belongs to the Special Issue Functional Carbon Nanocomposites for Energy Storage and Conversion)
In this study, a plasma in a liquid process (PiLP) was used to facilely precipitate bimetallic nanoparticles composed of Ni and Co elements on the surface of activated carbon. The physicochemical and electrochemical properties of the fabricated composites were evaluated to examine the potential of supercapacitors as electrode materials. Nickel and cobalt ions in the aqueous reactant solution were uniformly precipitated on the AC surface as spherical nanoparticles with a size of about 100 nm by PiLP reaction. The composition of nanoparticles was determined by the molar ratio of nickel and cobalt precursors and precipitated in the form of bimetallic oxide. The electrical conductivity and specific capacitance were increased by Ni-Co bimetallic oxide nanoparticles precipitated on the AC surface. In addition, the electrochemical performance was improved by stable cycling stability and resistance reduction and showed the best performance when the molar ratios of Ni and Co precursors were the same. View Full-Text
Keywords: supercapacitor electrode; Ni-Co bimetallic oxide nanoparticle; activated carbon; plasma in liquid process; specific capacitance supercapacitor electrode; Ni-Co bimetallic oxide nanoparticle; activated carbon; plasma in liquid process; specific capacitance
Show Figures

Graphical abstract

MDPI and ACS Style

Lee, H.; Park, I.-S.; Park, Y.-K.; An, K.-H.; Kim, B.-J.; Jung, S.-C. Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications. Nanomaterials 2020, 10, 61.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop