{"title":"Synthesis of high surface area activated carbon from banana peels biomass for zinc-ion hybrid super-capacitor","authors":"","doi":"10.1016/j.est.2024.114088","DOIUrl":null,"url":null,"abstract":"<div><div>The race to achieve cost-effective power sources has led to intense research to explore natural sources, and biomass sources are the front-runners. In this work, the chemical activation of the banana peel was carried out using phosphoric acid (H<sub>3</sub>PO<sub>4</sub>) to develop a high-performance zinc-ion hybrid super-capacitor (ZIHSC). SEM (Scanning Electron Microscopy) morphology of chemically activated BP-H<sub>3</sub>PO<sub>4</sub> materials revealed a nano-porous structure, and BET (Brunauer-Emmett-Teller) further corroborates the enhancement in surface area (218.339 m<sup>2</sup> g<sup>−1</sup>) of banana peel biochar. The process yields a low synthesis cost due to the facile conversion of biomass to biochar and activated biochar. The phosphoric acid (H<sub>3</sub>PO<sub>4</sub>) treated banana peel for the ZIHSC device showed an excellent specific capacitance of 228 F g<sup>−1</sup> (1 mV s<sup>−1</sup>, scan rate), an energy density of 120 Wh Kg<sup>−1</sup>, and a specific capacity of 73.98 mAh g<sup>−1</sup> (0.1 A g<sup>−1</sup>, current density). The two-electrode Swagelok-based ZIHSC cell retains incredible capacity retention after 50,000 charge and discharge cycles.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9000,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of energy storage","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352152X24036740","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
The race to achieve cost-effective power sources has led to intense research to explore natural sources, and biomass sources are the front-runners. In this work, the chemical activation of the banana peel was carried out using phosphoric acid (H3PO4) to develop a high-performance zinc-ion hybrid super-capacitor (ZIHSC). SEM (Scanning Electron Microscopy) morphology of chemically activated BP-H3PO4 materials revealed a nano-porous structure, and BET (Brunauer-Emmett-Teller) further corroborates the enhancement in surface area (218.339 m2 g−1) of banana peel biochar. The process yields a low synthesis cost due to the facile conversion of biomass to biochar and activated biochar. The phosphoric acid (H3PO4) treated banana peel for the ZIHSC device showed an excellent specific capacitance of 228 F g−1 (1 mV s−1, scan rate), an energy density of 120 Wh Kg−1, and a specific capacity of 73.98 mAh g−1 (0.1 A g−1, current density). The two-electrode Swagelok-based ZIHSC cell retains incredible capacity retention after 50,000 charge and discharge cycles.
期刊介绍:
Journal of energy storage focusses on all aspects of energy storage, in particular systems integration, electric grid integration, modelling and analysis, novel energy storage technologies, sizing and management strategies, business models for operation of storage systems and energy storage developments worldwide.