Facile Synthesis of Carbon Nanospheres with High Capability to Inhale Selenium Powder for Electrochemical Energy Storage

Carbon–selenium composite positive electrode (CSs@Se) is engineered in this project using a melt diffusion approach with glucose as a precursor, and it demonstrates good electrochemical performance for lithium–selenium batteries. X-ray diffraction (XRD) and scanning electron microscopy (SEM) with ED...

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Autores principales:	Mustafa Khan, Xuli Ding, Hongda Zhao, Xinrong Ma, Yuxin Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	carbon nanospheres selenium Li–Se battery Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/c42636d129cb40188abfa1885e28a7e3
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spelling	oai:doaj.org-article:c42636d129cb40188abfa1885e28a7e32021-11-25T18:13:20ZFacile Synthesis of Carbon Nanospheres with High Capability to Inhale Selenium Powder for Electrochemical Energy Storage10.3390/ma142267601996-1944https://doaj.org/article/c42636d129cb40188abfa1885e28a7e32021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6760https://doaj.org/toc/1996-1944Carbon–selenium composite positive electrode (CSs@Se) is engineered in this project using a melt diffusion approach with glucose as a precursor, and it demonstrates good electrochemical performance for lithium–selenium batteries. X-ray diffraction (XRD) and scanning electron microscopy (SEM) with EDS analysis are used to characterize the newly designed CSs@Se electrode. To complete the evaluation, electrochemical characterization such as charge–discharge (rate performance and cycle stability), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) tests are done. The findings show that selenium particles are distributed uniformly in mono-sized carbon spheres with enormous surface areas. Furthermore, the charge–discharge test demonstrates that the CSs@Se cathode has a rate performance of 104 mA h g<sup>−1</sup> even at current density of 2500 mA g<sup>−1</sup> and can sustain stable cycling for 70 cycles with a specific capacity of 270 mA h g<sup>−1</sup> at current density of 25 mA g<sup>−1</sup>. The homogeneous diffusion of selenium particles in the produced spheres is credited with an improved electrochemical performance.Mustafa KhanXuli DingHongda ZhaoXinrong MaYuxin WangMDPI AGarticlecarbon nanospheresseleniumLi–Se batteryTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6760, p 6760 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbon nanospheres selenium Li–Se battery Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	carbon nanospheres selenium Li–Se battery Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Mustafa Khan Xuli Ding Hongda Zhao Xinrong Ma Yuxin Wang Facile Synthesis of Carbon Nanospheres with High Capability to Inhale Selenium Powder for Electrochemical Energy Storage
description	Carbon–selenium composite positive electrode (CSs@Se) is engineered in this project using a melt diffusion approach with glucose as a precursor, and it demonstrates good electrochemical performance for lithium–selenium batteries. X-ray diffraction (XRD) and scanning electron microscopy (SEM) with EDS analysis are used to characterize the newly designed CSs@Se electrode. To complete the evaluation, electrochemical characterization such as charge–discharge (rate performance and cycle stability), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) tests are done. The findings show that selenium particles are distributed uniformly in mono-sized carbon spheres with enormous surface areas. Furthermore, the charge–discharge test demonstrates that the CSs@Se cathode has a rate performance of 104 mA h g<sup>−1</sup> even at current density of 2500 mA g<sup>−1</sup> and can sustain stable cycling for 70 cycles with a specific capacity of 270 mA h g<sup>−1</sup> at current density of 25 mA g<sup>−1</sup>. The homogeneous diffusion of selenium particles in the produced spheres is credited with an improved electrochemical performance.
format	article
author	Mustafa Khan Xuli Ding Hongda Zhao Xinrong Ma Yuxin Wang
author_facet	Mustafa Khan Xuli Ding Hongda Zhao Xinrong Ma Yuxin Wang
author_sort	Mustafa Khan
title	Facile Synthesis of Carbon Nanospheres with High Capability to Inhale Selenium Powder for Electrochemical Energy Storage
title_short	Facile Synthesis of Carbon Nanospheres with High Capability to Inhale Selenium Powder for Electrochemical Energy Storage
title_full	Facile Synthesis of Carbon Nanospheres with High Capability to Inhale Selenium Powder for Electrochemical Energy Storage
title_fullStr	Facile Synthesis of Carbon Nanospheres with High Capability to Inhale Selenium Powder for Electrochemical Energy Storage
title_full_unstemmed	Facile Synthesis of Carbon Nanospheres with High Capability to Inhale Selenium Powder for Electrochemical Energy Storage
title_sort	facile synthesis of carbon nanospheres with high capability to inhale selenium powder for electrochemical energy storage
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c42636d129cb40188abfa1885e28a7e3
work_keys_str_mv	AT mustafakhan facilesynthesisofcarbonnanosphereswithhighcapabilitytoinhaleseleniumpowderforelectrochemicalenergystorage AT xuliding facilesynthesisofcarbonnanosphereswithhighcapabilitytoinhaleseleniumpowderforelectrochemicalenergystorage AT hongdazhao facilesynthesisofcarbonnanosphereswithhighcapabilitytoinhaleseleniumpowderforelectrochemicalenergystorage AT xinrongma facilesynthesisofcarbonnanosphereswithhighcapabilitytoinhaleseleniumpowderforelectrochemicalenergystorage AT yuxinwang facilesynthesisofcarbonnanosphereswithhighcapabilitytoinhaleseleniumpowderforelectrochemicalenergystorage
_version_	1718411463939325952

Facile Synthesis of Carbon Nanospheres with High Capability to Inhale Selenium Powder for Electrochemical Energy Storage

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