Using chemical bath deposition to create nanosheet-like CuO electrodes for supercapacitor applications

S K Shinde; H M Yadav; G S Ghodake; A A Kadam; V S Kumbhar; Jiwook Yang; Kyojung Hwang; A D Jagadale; Sunil Kumar; D Y Kim

doi:10.1016/j.colsurfb.2019.05.079

Using chemical bath deposition to create nanosheet-like CuO electrodes for supercapacitor applications

Colloids Surf B Biointerfaces. 2019 Sep 1:181:1004-1011. doi: 10.1016/j.colsurfb.2019.05.079. Epub 2019 Jun 27.

Authors

S K Shinde¹, H M Yadav², G S Ghodake¹, A A Kadam³, V S Kumbhar⁴, Jiwook Yang¹, Kyojung Hwang¹, A D Jagadale⁵, Sunil Kumar⁶, D Y Kim⁷

Affiliations

¹ Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University, 32 Dongguk-ro, Biomedical Campus, Ilsandong-gu, Siksa-dong, 10326 Goyang-si, Gyenggi-do, South Korea.
² Department of Energy and Materials Engineering Dongguk University Seoul, 04620, South Korea.
³ Research Institute of Biotechnology and Medical Converged Science, Dongguk University, Biomedi Campus, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, South Korea.
⁴ School of Nano & Materials Science and Engineering, Department of Energy Chemical Engineering, Kyungpook National University, 2559, Gyeongsang-daero, Sangju, Gyeongbuk, South Korea.
⁵ Department of Electrical Department of Electrical and Computer Engineering, Kettering University, Flint, MI, 48504, USA.
⁶ Nano Information Technology Academy, Dongguk University, Seoul 100715, South Korea.
⁷ Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University, 32 Dongguk-ro, Biomedical Campus, Ilsandong-gu, Siksa-dong, 10326 Goyang-si, Gyenggi-do, South Korea. Electronic address: sbpkim@dongguk.edu.

PMID: 31382327
DOI: 10.1016/j.colsurfb.2019.05.079

Abstract

We report the effect of ionic liquids on chemically synthesized hierarchical-like copper oxide (CuO) thin films for supercapacitor applications. Concisely, the CuO thin films were deposited via chemical bath deposition (CBD) using 2-dimethylimidazolium chloride [HPDMIM(C1)], 1-(2',3'-dihydroxypropyl)-3-methylimidazolium chloride [DHPMIM(C1)], and N-(3-methyl-2-oxopropyl)pyridine chloride [MOCPP(C1)] ionic liquid solvents. The effects of the ionic liquid solvents on the morphological evolution of the as-prepared films were analyzed, and electrochemical properties were investigated. The highest specific capacitance was achieved for the electrode with a nanosheet-like structure produced by functionalization with the HPDMIM(C1) ionic liquid. The maximum specific capacitance achieved for the HPDMIM(C1):CuO hybrid electrode was 464 F g^-1 at 5 mV s^-1 in a 1 M Na₂SO₄ electrolyte. Thus, our findings, in addition to the stability of the HPDMIM(C1):CuO, indicate that it is a candidate for energy-storage applications.

Keywords: Chemical synthesis; Ionic liquid; Nanosheets; Specific capacitance; Supercapacitor.

MeSH terms

Copper / chemistry*
Electric Capacitance*
Electrochemical Techniques
Electrodes
Ionic Liquids / chemistry*
Nanostructures / chemistry*
Particle Size
Solvents / chemistry
Surface Properties

Substances

Ionic Liquids
Solvents
Copper
cupric oxide