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Waste Citrus reticulata Assisted Preparation of Cobalt Oxide Nanoparticles for Supercapacitors

The green, sustainable, and inexpensive creation of novel materials, primarily nanoparticles, with effective energy-storing properties, is key to addressing both the rising demand for energy storage and the mounting environmental concerns throughout the world. Here, an orange peel extract is used to...

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Autores principales: Srivastava, Rishabh, Bhardwaj, Shiva, Kumar, Anuj, Singhal, Rahul, Scanley, Jules, Broadbridge, Christine C., Gupta, Ram K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9739854/
https://www.ncbi.nlm.nih.gov/pubmed/36500743
http://dx.doi.org/10.3390/nano12234119
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author Srivastava, Rishabh
Bhardwaj, Shiva
Kumar, Anuj
Singhal, Rahul
Scanley, Jules
Broadbridge, Christine C.
Gupta, Ram K.
author_facet Srivastava, Rishabh
Bhardwaj, Shiva
Kumar, Anuj
Singhal, Rahul
Scanley, Jules
Broadbridge, Christine C.
Gupta, Ram K.
author_sort Srivastava, Rishabh
collection PubMed
description The green, sustainable, and inexpensive creation of novel materials, primarily nanoparticles, with effective energy-storing properties, is key to addressing both the rising demand for energy storage and the mounting environmental concerns throughout the world. Here, an orange peel extract is used to make cobalt oxide nanoparticles from cobalt nitrate hexahydrate. The orange peel extract has Citrus reticulata, which is a key biological component that acts as a ligand and a reducing agent during the formation of nanoparticles. Additionally, the same nanoparticles were also obtained from various precursors for phase and electrochemical behavior comparisons. The prepared Co-nanoparticles were also sulfurized and phosphorized to enhance the electrochemical properties. The synthesized samples were characterized using scanning electron microscopic and X-ray diffraction techniques. The cobalt oxide nanoparticle showed a specific capacitance of 90 F/g at 1 A/g, whereas the cobalt sulfide and phosphide samples delivered an improved specific capacitance of 98 F/g and 185 F/g at 1 A/g. The phosphide-based nanoparticles offer more than 85% capacitance retention after 5000 cycles. This study offers a green strategy to prepare nanostructured materials for energy applications.
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spelling pubmed-97398542022-12-11 Waste Citrus reticulata Assisted Preparation of Cobalt Oxide Nanoparticles for Supercapacitors Srivastava, Rishabh Bhardwaj, Shiva Kumar, Anuj Singhal, Rahul Scanley, Jules Broadbridge, Christine C. Gupta, Ram K. Nanomaterials (Basel) Article The green, sustainable, and inexpensive creation of novel materials, primarily nanoparticles, with effective energy-storing properties, is key to addressing both the rising demand for energy storage and the mounting environmental concerns throughout the world. Here, an orange peel extract is used to make cobalt oxide nanoparticles from cobalt nitrate hexahydrate. The orange peel extract has Citrus reticulata, which is a key biological component that acts as a ligand and a reducing agent during the formation of nanoparticles. Additionally, the same nanoparticles were also obtained from various precursors for phase and electrochemical behavior comparisons. The prepared Co-nanoparticles were also sulfurized and phosphorized to enhance the electrochemical properties. The synthesized samples were characterized using scanning electron microscopic and X-ray diffraction techniques. The cobalt oxide nanoparticle showed a specific capacitance of 90 F/g at 1 A/g, whereas the cobalt sulfide and phosphide samples delivered an improved specific capacitance of 98 F/g and 185 F/g at 1 A/g. The phosphide-based nanoparticles offer more than 85% capacitance retention after 5000 cycles. This study offers a green strategy to prepare nanostructured materials for energy applications. MDPI 2022-11-22 /pmc/articles/PMC9739854/ /pubmed/36500743 http://dx.doi.org/10.3390/nano12234119 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Srivastava, Rishabh
Bhardwaj, Shiva
Kumar, Anuj
Singhal, Rahul
Scanley, Jules
Broadbridge, Christine C.
Gupta, Ram K.
Waste Citrus reticulata Assisted Preparation of Cobalt Oxide Nanoparticles for Supercapacitors
title Waste Citrus reticulata Assisted Preparation of Cobalt Oxide Nanoparticles for Supercapacitors
title_full Waste Citrus reticulata Assisted Preparation of Cobalt Oxide Nanoparticles for Supercapacitors
title_fullStr Waste Citrus reticulata Assisted Preparation of Cobalt Oxide Nanoparticles for Supercapacitors
title_full_unstemmed Waste Citrus reticulata Assisted Preparation of Cobalt Oxide Nanoparticles for Supercapacitors
title_short Waste Citrus reticulata Assisted Preparation of Cobalt Oxide Nanoparticles for Supercapacitors
title_sort waste citrus reticulata assisted preparation of cobalt oxide nanoparticles for supercapacitors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9739854/
https://www.ncbi.nlm.nih.gov/pubmed/36500743
http://dx.doi.org/10.3390/nano12234119
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