Electrochemical properties of MnS-C and MnO-C composite powders prepared via spray drying process

Kyung Min Jeon, Jung Sang Cho, Yun Chan Kang

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Abstract Spherical micron-sized MnS-C and MnO-C composite powders are successfully prepared by post-treating the spray-dried precursor powders. Dextrin, which is used as the carbon source material, plays a key role in the preparation of the composite powders with regular morphologies; the bare MnS and MnO powders prepared from the spray solution without dextrin have irregular morphologies. The MnS-C composite powders prepared from the spray solution containing 17 g L-1 of dextrin have mixed crystal structures of α- and γ-MnS phases. These powders exhibit superior electrochemical properties compared with those of their MnS and MnO-C counterparts. For example, at a current density of 0.5 A g-1, the MnO-C powders have a 100th-cycle discharge capacity of 321 mA h g-1; the corresponding discharge capacities of the MnS powders prepared from spray solutions containing 0, 17, and 50 g L-1 of dextrin are 501, 786, and 636 mA h g-1, respectively.

Original languageEnglish
Article number21426
Pages (from-to)9-15
Number of pages7
JournalJournal of Power Sources
Volume295
DOIs
Publication statusPublished - 2015 Jul 8

Fingerprint

Spray drying
Electrochemical properties
Powders
drying
sprayers
composite materials
Composite materials
mixed crystals
Current density
Carbon
Crystal structure
current density
preparation
cycles
crystal structure
caloreen
carbon

Keywords

  • Carbon composite
  • Energy conversion
  • Energy storage materials
  • Manganese sulfide
  • Spray drying

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Electrochemical properties of MnS-C and MnO-C composite powders prepared via spray drying process. / Jeon, Kyung Min; Cho, Jung Sang; Kang, Yun Chan.

In: Journal of Power Sources, Vol. 295, 21426, 08.07.2015, p. 9-15.

Research output: Contribution to journalArticle

@article{644d3b9d0e9c472cbbbb32a96092d92f,
title = "Electrochemical properties of MnS-C and MnO-C composite powders prepared via spray drying process",
abstract = "Abstract Spherical micron-sized MnS-C and MnO-C composite powders are successfully prepared by post-treating the spray-dried precursor powders. Dextrin, which is used as the carbon source material, plays a key role in the preparation of the composite powders with regular morphologies; the bare MnS and MnO powders prepared from the spray solution without dextrin have irregular morphologies. The MnS-C composite powders prepared from the spray solution containing 17 g L-1 of dextrin have mixed crystal structures of α- and γ-MnS phases. These powders exhibit superior electrochemical properties compared with those of their MnS and MnO-C counterparts. For example, at a current density of 0.5 A g-1, the MnO-C powders have a 100th-cycle discharge capacity of 321 mA h g-1; the corresponding discharge capacities of the MnS powders prepared from spray solutions containing 0, 17, and 50 g L-1 of dextrin are 501, 786, and 636 mA h g-1, respectively.",
keywords = "Carbon composite, Energy conversion, Energy storage materials, Manganese sulfide, Spray drying",
author = "Jeon, {Kyung Min} and Cho, {Jung Sang} and Kang, {Yun Chan}",
year = "2015",
month = "7",
day = "8",
doi = "10.1016/j.jpowsour.2015.06.142",
language = "English",
volume = "295",
pages = "9--15",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

}

TY - JOUR

T1 - Electrochemical properties of MnS-C and MnO-C composite powders prepared via spray drying process

AU - Jeon, Kyung Min

AU - Cho, Jung Sang

AU - Kang, Yun Chan

PY - 2015/7/8

Y1 - 2015/7/8

N2 - Abstract Spherical micron-sized MnS-C and MnO-C composite powders are successfully prepared by post-treating the spray-dried precursor powders. Dextrin, which is used as the carbon source material, plays a key role in the preparation of the composite powders with regular morphologies; the bare MnS and MnO powders prepared from the spray solution without dextrin have irregular morphologies. The MnS-C composite powders prepared from the spray solution containing 17 g L-1 of dextrin have mixed crystal structures of α- and γ-MnS phases. These powders exhibit superior electrochemical properties compared with those of their MnS and MnO-C counterparts. For example, at a current density of 0.5 A g-1, the MnO-C powders have a 100th-cycle discharge capacity of 321 mA h g-1; the corresponding discharge capacities of the MnS powders prepared from spray solutions containing 0, 17, and 50 g L-1 of dextrin are 501, 786, and 636 mA h g-1, respectively.

AB - Abstract Spherical micron-sized MnS-C and MnO-C composite powders are successfully prepared by post-treating the spray-dried precursor powders. Dextrin, which is used as the carbon source material, plays a key role in the preparation of the composite powders with regular morphologies; the bare MnS and MnO powders prepared from the spray solution without dextrin have irregular morphologies. The MnS-C composite powders prepared from the spray solution containing 17 g L-1 of dextrin have mixed crystal structures of α- and γ-MnS phases. These powders exhibit superior electrochemical properties compared with those of their MnS and MnO-C counterparts. For example, at a current density of 0.5 A g-1, the MnO-C powders have a 100th-cycle discharge capacity of 321 mA h g-1; the corresponding discharge capacities of the MnS powders prepared from spray solutions containing 0, 17, and 50 g L-1 of dextrin are 501, 786, and 636 mA h g-1, respectively.

KW - Carbon composite

KW - Energy conversion

KW - Energy storage materials

KW - Manganese sulfide

KW - Spray drying

UR - http://www.scopus.com/inward/record.url?scp=84935470477&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84935470477&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2015.06.142

DO - 10.1016/j.jpowsour.2015.06.142

M3 - Article

AN - SCOPUS:84935470477

VL - 295

SP - 9

EP - 15

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

M1 - 21426

ER -