Abstract
We demonstrate the cation ratio-controlled synthesis of ZnMn2O4 and Zn1.67Mn1.33O4 aggregated microspheres. The carbonate precursor was synthesized by a solvothermal reaction, and then completely converted to oxide by calcination at 600 °C with a controlled cationic ratio. The prepared ternary oxide has a nanoparticle-aggregated morphology and uniform size distribution. The electrochemical properties were investigated by cyclic voltammetry and constant current charge-discharge measurements. The Zn1.67Mn1.33O4 electrode reveals better performance for Zn2+ storage than the other, delivering 175 mA h g−1 after 40 cycles. After the electrochemical test, ex situ analysis was conducted to identify the Zn2+ storage mechanisms. From these results, we confirm that the Zn1.67Mn1.33O4 cathode is a promising Zn2+ storage material for environmental friendly aqueous rechargeable Zn-ion batteries.
| Original language | English |
|---|---|
| Pages (from-to) | 478-482 |
| Number of pages | 5 |
| Journal | Journal of Alloys and Compounds |
| DOIs | |
| Publication status | Published - 2019 Sep 5 |
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Keywords
- Aqueous Zn-ion batteries
- Cathode materials
- Microspheres
- Spinel structures
- Zinc manganese oxides
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Comparative study on ternary spinel cathode Zn–Mn–O microspheres for aqueous rechargeable zinc-ion batteries. / Lee, Jae Wan; Seo, Seung Deok; Kim, Dong-Wan.
In: Journal of Alloys and Compounds, 05.09.2019, p. 478-482.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Comparative study on ternary spinel cathode Zn–Mn–O microspheres for aqueous rechargeable zinc-ion batteries
AU - Lee, Jae Wan
AU - Seo, Seung Deok
AU - Kim, Dong-Wan
PY - 2019/9/5
Y1 - 2019/9/5
N2 - We demonstrate the cation ratio-controlled synthesis of ZnMn2O4 and Zn1.67Mn1.33O4 aggregated microspheres. The carbonate precursor was synthesized by a solvothermal reaction, and then completely converted to oxide by calcination at 600 °C with a controlled cationic ratio. The prepared ternary oxide has a nanoparticle-aggregated morphology and uniform size distribution. The electrochemical properties were investigated by cyclic voltammetry and constant current charge-discharge measurements. The Zn1.67Mn1.33O4 electrode reveals better performance for Zn2+ storage than the other, delivering 175 mA h g−1 after 40 cycles. After the electrochemical test, ex situ analysis was conducted to identify the Zn2+ storage mechanisms. From these results, we confirm that the Zn1.67Mn1.33O4 cathode is a promising Zn2+ storage material for environmental friendly aqueous rechargeable Zn-ion batteries.
AB - We demonstrate the cation ratio-controlled synthesis of ZnMn2O4 and Zn1.67Mn1.33O4 aggregated microspheres. The carbonate precursor was synthesized by a solvothermal reaction, and then completely converted to oxide by calcination at 600 °C with a controlled cationic ratio. The prepared ternary oxide has a nanoparticle-aggregated morphology and uniform size distribution. The electrochemical properties were investigated by cyclic voltammetry and constant current charge-discharge measurements. The Zn1.67Mn1.33O4 electrode reveals better performance for Zn2+ storage than the other, delivering 175 mA h g−1 after 40 cycles. After the electrochemical test, ex situ analysis was conducted to identify the Zn2+ storage mechanisms. From these results, we confirm that the Zn1.67Mn1.33O4 cathode is a promising Zn2+ storage material for environmental friendly aqueous rechargeable Zn-ion batteries.
KW - Aqueous Zn-ion batteries
KW - Cathode materials
KW - Microspheres
KW - Spinel structures
KW - Zinc manganese oxides
UR - http://www.scopus.com/inward/record.url?scp=85067228591&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067228591&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2019.06.051
DO - 10.1016/j.jallcom.2019.06.051
M3 - Article
AN - SCOPUS:85067228591
SP - 478
EP - 482
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -