One-pot hydrothermal synthesis of 3D garland BiOI, spherical ZnO, and CNFs onto Ni foam: Supercapacitor performance with enhanced electrochemical properties

N Ramesh Reddy; A Sai Kumar; P Mohan Reddy; Nipa Roy; Suvardhan Kanchi; Raghava Reddy Kakarla; Jae Hak Jung; Tejraj M Aminabhavi; Sang Woo Joo

doi:10.1016/j.jenvman.2024.122841

One-pot hydrothermal synthesis of 3D garland BiOI, spherical ZnO, and CNFs onto Ni foam: Supercapacitor performance with enhanced electrochemical properties

J Environ Manage. 2024 Nov:370:122841. doi: 10.1016/j.jenvman.2024.122841. Epub 2024 Oct 13.

Authors

N Ramesh Reddy¹, A Sai Kumar², P Mohan Reddy¹, Nipa Roy², Suvardhan Kanchi³, Raghava Reddy Kakarla⁴, Jae Hak Jung⁵, Tejraj M Aminabhavi⁶, Sang Woo Joo⁷

Affiliations

¹ School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
² Department of Physics, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
³ Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560 029, India.
⁴ School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia. Electronic address: reddy.chem@gmail.com.
⁵ School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea. Electronic address: jhjung@ynu.ac.kr.
⁶ Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi, 580031, Karnataka, India; School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand, 248 007, India. Electronic address: aminabhavit@gmail.com.
⁷ School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea. Electronic address: swjoo@yu.ac.kr.

PMID: 39405870
DOI: 10.1016/j.jenvman.2024.122841

Abstract

This study reported one-pot hydrothermal synthesis of 3D garland BiOI, spherical ZnO, and carbon nanofibers (CNFs) onto Ni foam substrate with improved supercapacitor performance and enhanced electrochemical properties. The synthesized nanocomposites exhibited high specific capacitance (SC) of 1073 g^-1 at a current density of 1 A/g and excellent cycling stability with 88.6% retention of original capacity after 5000 cycles in 2M KOH aqueous solution. The findings highlight the potential of 3D materials for use as electrode materials in advanced supercapacitor applications due to their high energy storage capabilities.

Keywords: Battery type supercapacitors; Bismuth oxyiodide; Carbon nanomaterials; Electrochemical properties; Energy storage; Heterostructured electrodes; Nickel foam; ZnO nanoparticles.

MeSH terms

Carbon / chemistry
Electric Capacitance*
Electrodes
Nanocomposites / chemistry
Nanofibers* / chemistry
Nickel* / chemistry
Zinc Oxide* / chemistry

Substances

Zinc Oxide
Nickel
Carbon