Synthesis, characterization and electrochemical performances of MoO2 and carbon co-coated LiFePO4 cathode materials

Liu, Shuxin; Yin, Hengbo; Wang, Haibin; He, Jie; Wang, Hong

doi:10.1016/j.ceramint.2013.09.102

Cited by 14 publications

(6 citation statements)

References 31 publications

(37 reference statements)

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“…As shown in Figure 12B , the I D /I G value of the CSFs gradually decreased as the AMT feeding dosage increased, and the CSF derived from the Mo-1 g/L group possessed the highest graphitization degree among all the samples. Based on the fact that MoO 2 NPs can induce the phase transformation of amorphous carbon into graphite ( Liu et al, 2014 ), we believe that the growing number of MoO 2 NPs generated during carbonization progressively improved the graphitization degree of the CSFs.…”

Section: Resultsmentioning

confidence: 99%

In situ preparation of molybdenum-dioxide-incorporated carbonized silk fiber and its application in supercapacitors

Zhang

Zhu

et al. 2022

Front. Bioeng. Biotechnol.

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A previous study found that the capacitive behavior of nanoparticles fed to the silkworm can be delivered to carbonized silk fibers, which can be used to fabricate electrodes for the construction of flexible supercapacitors. However, the tendency of nanoparticles to aggregate decreases the quantity of nanoparticles that enter the silk and therefore reduces the capacitance performance of the prepared carbonized silk. Here, we sprayed ammonium molybdate tetrahydrate (AMT) on the surface of mulberry leaves used for feeding silkworms and investigated the effect of feeding AMT on the growth of silkworms and the properties of spun silk. The precursor incorporated into the silk was converted into scattered MoO2 NPs, which were embedded within the carbonized silk fiber (CSF) via carbothermal reduction. The specific capacitance of CSF obtained from silkworms fed with an aqueous solution of AMT-treated mulberry leaves reached up to 298 F/g at 0.2 g/A, which is much higher than that of the control group (102 F/g). Since AMT is highly water-soluble, and its concentration can be easily modulated, we believe that the proposed strategy is feasible for the large-scale fabrication of CSF with enhanced capacitive performance.

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Section: Resultsmentioning

confidence: 99%

In situ preparation of molybdenum-dioxide-incorporated carbonized silk fiber and its application in supercapacitors

Zhang

Zhu

et al. 2022

Front. Bioeng. Biotechnol.

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“…Synthesis methods Initial Specific Capacity citric acid 107 hydrothermal method 165 mAh•g −1 (0.1 C) PANI 109 In-situ polymerization 165 mAh•g −1 (0.2 C), 133 mAh•g −1 (7 C), 123 mAh•g −1 (10 C) PTPAn 111 Solvent method 154.5 mAh•g −1 (0.1 C), 114.2 mAh•g −1 (10 C) PEG 112 Rheological phase method 145.6 mAh•g −1 (0.1 C), 135 mAh•g −1 (1 C), 130 mAh•g −1 (2 C) PPy 123 In-situ polymerization 153 mAh•g −1 (0.1 C) PAS 125 Hydrothermal method 158 mAh•g −1 (0.2 C), 145 mAh•g −1 (10 C) PEDOT 130 Soft-chemistry method 163 mAh•g −1 (0.1 C), 123 mAh•g −1 (10 C)…”

Section: Methodsmentioning

confidence: 99%

“…However, metals are easy to be oxidized when exposed into electrolyte solution, which would dramatically damage the cycle stability of LiFePO 4 cathode. Therefore, metallic oxide materials have been adopted as coating layers of LiFePO 4 particles, such as WO 2 , 109,110 MoO 2 , 111,112 ZnO, [113][114][115][116] SnO 2 , 117 Al 2 O 3 , 118 CuO. 119 The synthesize methods and electrochemical performances of typical composite materials are shown in Table II.…”

Section: Metal and Metal Oxide Materialsmentioning

confidence: 99%

“…The obtained high specific capacity is resulted from the increased porous and specific surface area of the modified materials via the coating of citric acid, which can suppresses the growth of LiFePO 4 crystalloid. 109 In-situ polymerization 165 mAh•g −1 (0.2 C), 133 mAh•g −1 (7 C), 123 mAh•g −1 (10 C) PTPAn 111 Solvent method 154.5 mAh•g −1 (0.1 C), 114.2 mAh•g −1 (10 C) PEG 112 Rheological phase method 145.6 mAh•g −1 (0.1 C), 135 mAh•g −1 (1 C), 130 mAh•g −1 (2 C) PPy 123 In-situ polymerization 153 mAh•g −1 (0.1 C) PAS 125 Hydrothermal method 158 mAh•g −1 (0.2 C), 145 mAh•g −1 (10 C) PEDOT 130 Soft-chemistry method 163 mAh•g −1 (0.1 C), 123 mAh•g −1 (10 C) Polyaniline (PANI) polymer has excellent electronic conductive and reversible redox properties. For example, the use of PANI as coating materials cannot only promote electronic conductive, but also participate in electrode reaction to improve the electrochemical performances.…”

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confidence: 99%

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Review—Recent Research Progress in Surface Modification of LiFePO₄Cathode Materials

et al. 2017

J. Electrochem. Soc.

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The olivine structure lithium iron phosphate (LiFePO 4 ) is considered as one of the promising lithium ion batteries cathode materials for its high theoretical specific capacity, excellent reversibility, thermal stability, environmental friendliness, and low cost. However, the application of LiFePO 4 in vehicle power battery was hindered by its poor electronic and ionic conductivity. To solve these problems, various strategies, including surface coating, element doping, and particle size reduction were proposed. In this review, we summed up some recent researches on surface modification of LiFePO 4 and explained the mechanisms of modification. Moreover, the defects and advantages of these modification methods were discussed. Finally, an outlook for the surface modifications of LiFePO 4 cathode materials was given. Since the SONY corporation developed the first generation of commercial lithium-ion batteries in the 1990s, lithium-ion battery has been widely applied in various electronic equipment, such as a carrier of energy storage and conversion.1 In particular, the great development has been made for applications of lithium ion battery in vehicle power.2-6 As the most expensive component of lithium ion battery, cathode materials achieve much attention also for its strong effects on battery capacity, cycle life, and security. Compared with conventional cathode materials, such as LiCoO 2 , LiNiO 2 , and LiMn 2 O 4 , LiFePO 4 is a promising cathode material for rechargeable batteries used for hybrid electric vehicles and bare electric vehicles for its high theoretical capacity (170 mAhg −1 at room temperature), long cycle ability, excellent thermal stability, environmental friendliness, and low cost. [7][8][9]

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“…Several synthetic approaches have revealed two different phases (h-and α-phases) of MoO3 [28]. Nanorod's morphologies were explained and exhibited the hphase though another phase (a) resembles nanowires and plates [29,30]. In literature, many traditional electrode materials have been applied to eradicate harmful pollutants for sensor applications of Fe2O3, Co2O3, CuO, TiO2 and molybdenum oxide, which are a few significant examples [31].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation and Anticancer Activity of Green Synthesized Molybdenum Nanoparticles for Inhibiting the Cervical Cancer Cells

Kutikanti,

Belwal

2024

ajc

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This work reports the synthesis of molybdenum nanoparticles (Mo NPs) through green routes using horse gram seed extracts and characterized by GC-MS, electronic (UV-visible) spectroscopy, IR, XRD and SEM techniques. Their potent applications as in vitro anticancer agent against HeLa cell lines and photocatalytic degradation of methyl orange (MO) and methyl violet (MV) dyes were also evaluated. The anti-malignant properties of Schiff base ligands [2-fluorobenzaldehyde semicarbazone (L1H) and 2-fluorobenzaldehyde thiosemicarbazone (L2H) with molybdenum metal precursor [dioxobis(2,4-pentanedionato)molybdenum] were also explored and their Mo complexes after conversion into nano form as both ligands, L1H and L2H approve their binding property based on molecular docking studies.

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Synthesis, characterization and electrochemical performances of MoO2 and carbon co-coated LiFePO4 cathode materials

Cited by 14 publications

References 31 publications

In situ preparation of molybdenum-dioxide-incorporated carbonized silk fiber and its application in supercapacitors

In situ preparation of molybdenum-dioxide-incorporated carbonized silk fiber and its application in supercapacitors

Review—Recent Research Progress in Surface Modification of LiFePO₄Cathode Materials

Photocatalytic Degradation and Anticancer Activity of Green Synthesized Molybdenum Nanoparticles for Inhibiting the Cervical Cancer Cells

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Synthesis, characterization and electrochemical performances of MoO2 and carbon co-coated LiFePO4 cathode materials

Cited by 14 publications

References 31 publications

In situ preparation of molybdenum-dioxide-incorporated carbonized silk fiber and its application in supercapacitors

In situ preparation of molybdenum-dioxide-incorporated carbonized silk fiber and its application in supercapacitors

Review—Recent Research Progress in Surface Modification of LiFePO4Cathode Materials

Photocatalytic Degradation and Anticancer Activity of Green Synthesized Molybdenum Nanoparticles for Inhibiting the Cervical Cancer Cells

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Review—Recent Research Progress in Surface Modification of LiFePO₄Cathode Materials