Direct Growth of MoS2 Nanowalls on Carbon Nanofibers for Use in Supercapacitor

Abstract Direct growth of MoS2 nanowalls on vapor grown carbon nanofibers (VGCNFs) has been achieved using a microwave-assisted hydrothermal (MAH) method under an acidic condition. The acidic condition was obtained through the addition of an HCl aqueous solution. We demonstrate that the HCl not only...

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Autores principales:	Fitri Nur Indah Sari, Jyh-Ming Ting
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a1cd9b7645444bfea589456aab5f4387
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spelling	oai:doaj.org-article:a1cd9b7645444bfea589456aab5f43872021-12-02T12:30:17ZDirect Growth of MoS2 Nanowalls on Carbon Nanofibers for Use in Supercapacitor10.1038/s41598-017-05805-z2045-2322https://doaj.org/article/a1cd9b7645444bfea589456aab5f43872017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05805-zhttps://doaj.org/toc/2045-2322Abstract Direct growth of MoS2 nanowalls on vapor grown carbon nanofibers (VGCNFs) has been achieved using a microwave-assisted hydrothermal (MAH) method under an acidic condition. The acidic condition was obtained through the addition of an HCl aqueous solution. We demonstrate that the HCl not only modifies the pH value for limiting the growth rate but also leads to the formation of NaCl, which is the key for the direct and unique growth of MoS2 on the VGCNF surface. A growth mechanism is therefore proposed. The growth of MoS2 onto the high electrically conducting VGCNF creates a unique structure that not only reduces the aggregation of MoS2 but also improves the electrical conductivity of the resulting composite electrode. The MoS2 nanowall/VGCNF composite shows Csp as high as 248 F g−1 at 5 mV s−1 and excellent electrochemical stability with a retention of 96% after 1,000 cycles at a high charge rate of 200 mV s−1. The ease of composite fabrication and electrochemical stability suggest that the MoS2 nanowall/VGCNF composite is a promising candidate electrode material for supercapacitor.Fitri Nur Indah SariJyh-Ming TingNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fitri Nur Indah Sari Jyh-Ming Ting Direct Growth of MoS2 Nanowalls on Carbon Nanofibers for Use in Supercapacitor
description	Abstract Direct growth of MoS2 nanowalls on vapor grown carbon nanofibers (VGCNFs) has been achieved using a microwave-assisted hydrothermal (MAH) method under an acidic condition. The acidic condition was obtained through the addition of an HCl aqueous solution. We demonstrate that the HCl not only modifies the pH value for limiting the growth rate but also leads to the formation of NaCl, which is the key for the direct and unique growth of MoS2 on the VGCNF surface. A growth mechanism is therefore proposed. The growth of MoS2 onto the high electrically conducting VGCNF creates a unique structure that not only reduces the aggregation of MoS2 but also improves the electrical conductivity of the resulting composite electrode. The MoS2 nanowall/VGCNF composite shows Csp as high as 248 F g−1 at 5 mV s−1 and excellent electrochemical stability with a retention of 96% after 1,000 cycles at a high charge rate of 200 mV s−1. The ease of composite fabrication and electrochemical stability suggest that the MoS2 nanowall/VGCNF composite is a promising candidate electrode material for supercapacitor.
format	article
author	Fitri Nur Indah Sari Jyh-Ming Ting
author_facet	Fitri Nur Indah Sari Jyh-Ming Ting
author_sort	Fitri Nur Indah Sari
title	Direct Growth of MoS2 Nanowalls on Carbon Nanofibers for Use in Supercapacitor
title_short	Direct Growth of MoS2 Nanowalls on Carbon Nanofibers for Use in Supercapacitor
title_full	Direct Growth of MoS2 Nanowalls on Carbon Nanofibers for Use in Supercapacitor
title_fullStr	Direct Growth of MoS2 Nanowalls on Carbon Nanofibers for Use in Supercapacitor
title_full_unstemmed	Direct Growth of MoS2 Nanowalls on Carbon Nanofibers for Use in Supercapacitor
title_sort	direct growth of mos2 nanowalls on carbon nanofibers for use in supercapacitor
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/a1cd9b7645444bfea589456aab5f4387
work_keys_str_mv	AT fitrinurindahsari directgrowthofmos2nanowallsoncarbonnanofibersforuseinsupercapacitor AT jyhmingting directgrowthofmos2nanowallsoncarbonnanofibersforuseinsupercapacitor
_version_	1718394413932085248

Direct Growth of MoS2 Nanowalls on Carbon Nanofibers for Use in Supercapacitor

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