Morphology controlling of manganese-cobalt-sulfide nanoflake arrays using polyvinylpyrrolidone capping agent to enhance the performance of hybrid supercapacitors

Autor:	Tensangmu Lama Tamang, Saad Gomaa Mohamed, Ganesh Dhakal, Jae-Jin Shim
Rok vydání:	2022
Předmět:	Biomaterials Colloid and Surface Chemistry Surfaces Coatings and Films Electronic Optical and Magnetic Materials
Zdroj:	Journal of colloid and interface science. 624
ISSN:	1095-7103
Popis:	Transition metal sulfide-based electrode materials are promising candidates for energy storage applications owing to their richer redox-active sites and higher electrical conductivity than their oxide counterparts. Manganese-cobalt-sulfide (MCS) nanoflakes were synthesized on nickel foam in the presence of polyvinylpyrrolidone (PVP) as a capping agent using a one-step hydrothermal method. The variation in the amount of PVP in the reaction solution had a prominent impact on the MCS electrode morphology. PVP altered the morphology of the MCS nanoflakes. Different shapes of interconnecting-nanoflake arrays were formed with different amounts of PVP. The MCS electrode prepared using 0.2 g of PVP (MCS-P2) showed the best efficiency with a specific capacity of 1312 C g
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::592c207602bca1e3c1a393198f72649f https://pubmed.ncbi.nlm.nih.gov/35667211 Zobrazit plný text záznamu Full Text from ScienceDirect