Hierarchical porous carbon from mango seed husk for electro-chemical energy storage

Bio-waste valorization of Mango Seed (MS) husk to Activated Carbon (AC) was conducted via carbonization followed by chemical activation using KOH for sustainable supercapacitor material. Various physicochemical techniques were used to characterise both MS husk and AC, while electrochemical technique...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	W.A.M. Kethaki Pabasara Wickramaarachchi, Manickam Minakshi, Xiangpeng Gao, Rukshima Dabare, Kok Wai Wong
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Mango seed husk Biomass activated carbon Activation temperature Energy storage Machine learning modeling Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/7c289cc00a18442a97bef69b7bc71be6
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:7c289cc00a18442a97bef69b7bc71be6
record_format	dspace
spelling	oai:doaj.org-article:7c289cc00a18442a97bef69b7bc71be62021-11-18T04:52:53ZHierarchical porous carbon from mango seed husk for electro-chemical energy storage2666-821110.1016/j.ceja.2021.100158https://doaj.org/article/7c289cc00a18442a97bef69b7bc71be62021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666821121000740https://doaj.org/toc/2666-8211Bio-waste valorization of Mango Seed (MS) husk to Activated Carbon (AC) was conducted via carbonization followed by chemical activation using KOH for sustainable supercapacitor material. Various physicochemical techniques were used to characterise both MS husk and AC, while electrochemical techniques were used to assess the energy storage capability. Carbonized MS husk was activated at four different temperatures 800, 900, 1000, and 1100 °C. Optimal activation temperature was found to be 1100 °C resulting in a hierarchical porous structure, possessing the highest specific surface area 1943 m2 g−1 and average pore volume 0.397 cm3 g−1, the critical parameters for their energy storage performance. In a three-electrode configuration, the MS-AC sample synthesized at 1100 °C (MS-AC 1100) exhibited a maximum specific capacitance of 135 F g−1 at 5 mA cm−2 with the energy density of 19 Wh kg−1 at the power density of 1077 W kg−1, which is higher than the commercially available AC. The MS-AC 1100 delivered 97% of the capacitance when increasing the current densities from 2 to 10 mA cm−2. The capacitance retention is 100% at 5 mA cm−2 with 1000 cycles. Moreover, Machine Learning (ML) models are used to identify the non-linear pattern for predicting the AC capacitance using various input parameters. Out of the four ML models considered in this work, the Multi-Layer Perceptron (MLP) model outperformed the other models to better correlate the predicted data and the experimental measurements. This study demonstrates the economic perspective of repurposing MS husk bio-waste to a low-cost super-capacitor electrode material and developing high-performance carbon materials to aid the integration of renewable energy into electricity systems.W.A.M. Kethaki Pabasara WickramaarachchiManickam MinakshiXiangpeng GaoRukshima DabareKok Wai WongElsevierarticleMango seed huskBiomass activated carbonActivation temperatureEnergy storageMachine learning modelingChemical engineeringTP155-156ENChemical Engineering Journal Advances, Vol 8, Iss , Pp 100158- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Mango seed husk Biomass activated carbon Activation temperature Energy storage Machine learning modeling Chemical engineering TP155-156
spellingShingle	Mango seed husk Biomass activated carbon Activation temperature Energy storage Machine learning modeling Chemical engineering TP155-156 W.A.M. Kethaki Pabasara Wickramaarachchi Manickam Minakshi Xiangpeng Gao Rukshima Dabare Kok Wai Wong Hierarchical porous carbon from mango seed husk for electro-chemical energy storage
description	Bio-waste valorization of Mango Seed (MS) husk to Activated Carbon (AC) was conducted via carbonization followed by chemical activation using KOH for sustainable supercapacitor material. Various physicochemical techniques were used to characterise both MS husk and AC, while electrochemical techniques were used to assess the energy storage capability. Carbonized MS husk was activated at four different temperatures 800, 900, 1000, and 1100 °C. Optimal activation temperature was found to be 1100 °C resulting in a hierarchical porous structure, possessing the highest specific surface area 1943 m2 g−1 and average pore volume 0.397 cm3 g−1, the critical parameters for their energy storage performance. In a three-electrode configuration, the MS-AC sample synthesized at 1100 °C (MS-AC 1100) exhibited a maximum specific capacitance of 135 F g−1 at 5 mA cm−2 with the energy density of 19 Wh kg−1 at the power density of 1077 W kg−1, which is higher than the commercially available AC. The MS-AC 1100 delivered 97% of the capacitance when increasing the current densities from 2 to 10 mA cm−2. The capacitance retention is 100% at 5 mA cm−2 with 1000 cycles. Moreover, Machine Learning (ML) models are used to identify the non-linear pattern for predicting the AC capacitance using various input parameters. Out of the four ML models considered in this work, the Multi-Layer Perceptron (MLP) model outperformed the other models to better correlate the predicted data and the experimental measurements. This study demonstrates the economic perspective of repurposing MS husk bio-waste to a low-cost super-capacitor electrode material and developing high-performance carbon materials to aid the integration of renewable energy into electricity systems.
format	article
author	W.A.M. Kethaki Pabasara Wickramaarachchi Manickam Minakshi Xiangpeng Gao Rukshima Dabare Kok Wai Wong
author_facet	W.A.M. Kethaki Pabasara Wickramaarachchi Manickam Minakshi Xiangpeng Gao Rukshima Dabare Kok Wai Wong
author_sort	W.A.M. Kethaki Pabasara Wickramaarachchi
title	Hierarchical porous carbon from mango seed husk for electro-chemical energy storage
title_short	Hierarchical porous carbon from mango seed husk for electro-chemical energy storage
title_full	Hierarchical porous carbon from mango seed husk for electro-chemical energy storage
title_fullStr	Hierarchical porous carbon from mango seed husk for electro-chemical energy storage
title_full_unstemmed	Hierarchical porous carbon from mango seed husk for electro-chemical energy storage
title_sort	hierarchical porous carbon from mango seed husk for electro-chemical energy storage
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/7c289cc00a18442a97bef69b7bc71be6
work_keys_str_mv	AT wamkethakipabasarawickramaarachchi hierarchicalporouscarbonfrommangoseedhuskforelectrochemicalenergystorage AT manickamminakshi hierarchicalporouscarbonfrommangoseedhuskforelectrochemicalenergystorage AT xiangpenggao hierarchicalporouscarbonfrommangoseedhuskforelectrochemicalenergystorage AT rukshimadabare hierarchicalporouscarbonfrommangoseedhuskforelectrochemicalenergystorage AT kokwaiwong hierarchicalporouscarbonfrommangoseedhuskforelectrochemicalenergystorage
_version_	1718424984018223104

Hierarchical porous carbon from mango seed husk for electro-chemical energy storage

Ejemplares similares