MnCO3: a novel electrode material for supercapacitors

“…Recently, micro-and nanosize manganese carbonate has also attracted widespread interest for energy storage device. Accordingly, Devaraj et al [17] disclosed submicron sized MnCO 3 as electrode materials for supercapacitors with good reversibility and superior rate performance. Xia et al [18] prepared MnCO 3 QDs/Ni(HCO 3 ) 2 -MnCO 3 shell-needle composites by one-step hydrothermal method, which exhibited outstanding electrochemical properties.…”

Section: Introductionmentioning

confidence: 98%

Rational design of microsphere and microcube MnCO 3 @MnO 2 heterostructures for supercapacitor electrodes

Chen

Yan

Liu

et al. 2017

Journal of Power Sources

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“…Recently, we have unveiled a novel electrode material, MnCO 3 for supercapacitor applications [24]. Submicron-size MnCO 3 synthesized by hydrothermal method exhibits specific capacitance of 216 F g −1 at a loading level of 1.55 mg cm −2 in 0.1 M Mg(ClO 4 ) 2 .…”

Section: Introductionmentioning

confidence: 99%

Metal carbonates: alternative to metal oxides for supercapacitor applications? A case study of MnCO3 vs MnO2

Devaraj

Vardhan

Liu

et al. 2015

J Solid State Electrochem

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We report here the potential competency of MnCO 3 versus MnO 2 for supercapacitor applications. MnCO 3 was synthesized by a hydrothermal method using KMnO 4 as a manganese source and either sugar or pyrrole as carbon source. MnCO 3 synthesized using sugar and pyrrole as carbon source is referred hereafter as MnCO 3 (s) and MnCO 3 (p), respectively. The synthesized products were characterized by powder X-ray diffraction, scanning electron microscopic and transmission electron microscopic studies. Microscopic studies revealed that MnO 2 possesses micro-flower-like morphology constructed by self-assembled nano-petals. While the morphology of MnCO 3 (s) is sub-micron size particles of different shape, the morphology of MnCO 3 (p) is crystalline particles of 10-20 nm dia. The capacitive characteristics of MnO 2 , MnCO 3 (s) and MnCO 3 (p) were evaluated in aqueous 0.1 M Mg(ClO 4 ) 2 electrolyte between 0 and 1 V using cyclic voltammetry and galvanostatic charge/discharge cycling. Specific capacitance (SC) values of 216 and 296 F g −1 obtained for MnCO 3 (s) and MnCO 3 (p) are 35 and 85 % higher than SC value of 160 F g −1 obtained for MnO 2 , respectively. Besides better capacitive storage characteristics, MnCO 3 (s) and MnCO 3 (p) have also exhibited better rate capability and cycle life than MnO 2 .

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MnCO3: a novel electrode material for supercapacitors

Cited by 91 publications

References 33 publications

Visible light photocatalytic behavior of manganese carbonate/titanium dioxide nanocomposites based on photoinduced interfacial charge transfer

Visible light photocatalytic behavior of manganese carbonate/titanium dioxide nanocomposites based on photoinduced interfacial charge transfer

Rational design of microsphere and microcube MnCO 3 @MnO 2 heterostructures for supercapacitor electrodes

Metal carbonates: alternative to metal oxides for supercapacitor applications? A case study of MnCO3 vs MnO2

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