High performance CoO nanospheres catalyst synthesized by DC arc discharge plasma method as air electrode for lithium-oxygen battery

Lang, Xiaoshi; Zhang, Yuying; Cai, Kedi; Li, Lan; Wang, Qiushi; Zhang, Qingguo

doi:10.1007/s11581-018-2588-1

Cited by 8 publications

(4 citation statements)

References 28 publications

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“…The preparation process of the air electrode was the same as our previous research . The only difference was that the catalyst used in the experiment was Mn‐based MOFs materials.…”

Section: Methodsmentioning

confidence: 91%

“…The physical properties of Mn‐based MOFs materials were confirmed by field emission scanning electron microscope (FE‐SEM), X‐ray diffraction (XRD) and Raman spectrum tests the same as our previous research conditions . The electrochemical performances of experimental lithium‐oxygen batteries with Mn‐based MOFs as catalyst for air electrode were tested by contact current charge and discharge, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS) tests with suitable polarization rate and voltage range.…”

Section: Methodsmentioning

confidence: 99%

“…At present, novel transition metal compounds are regarded as promising catalytic materials and have been extensively studied for many years. In our previous research, high performance nano Mn 3 O 4 /MnO and CoO catalysts were synthesized successfully and can significantly improve the cycle life. Luo et al obtained a three‐dimensional array of TiN@Pt 3 Cu nanowires as a high performance porous electrode for lithium‐oxygen battery.…”

Section: Introductionmentioning

confidence: 99%

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Highly active cluster structure manganese‐based metal organic frameworks (Mn‐MOFs) like corals in the sea synthesized by facile solvothermal method as gas electrode catalyst for lithium‐oxygen batteries

et al. 2019

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Lithium-oxygen batteries are promising energy storage systems for electric vehicles owing to their very high specific capacity. In all of their components, the catalysts in the air electrode have a profound influence on its electrochemical performances, especially cycle life and specific energy. In this paper, a type of cluster structure manganese-based metal organic frameworks (Mn-MOFs) material is synthesized by facile solvothermal method. Through X-ray diffraction (XRD), scanning electron microscope (SEM), and Raman spectrum tests, it shows that the Mn-MOFs materials with the 1.3:1 molar ratio (Mn: pphthalic acid) have high crystallinity and orientation and show obvious cluster structure like corals in the sea. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) tests demonstrate that this MOFs material as the gas electrode catalyst has more excellent reversibility and the oxidation process. Furthermore, the air electrode has quick electronic and lithium ion transfer rate. In addition, the lithium-oxygen batteries with this Mn-based MOFs material as the air electrode catalyst have longer cycle life. After 35 times charge and discharge cycles, the specific discharge capacity can still be maintained over 500 mAh·g −1 , and it has the much higher discharge voltage platform. KEYWORDScluster structure, cycle life, facile solvothermal method, lithium-oxygen batteries, Mn-based metal organic frameworks

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“…The preparation process of the air electrode was the same as our previous research . The only difference was that the catalyst used in the experiment was Mn‐based MOFs materials.…”

Section: Methodsmentioning

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Highly active cluster structure manganese‐based metal organic frameworks (Mn‐MOFs) like corals in the sea synthesized by facile solvothermal method as gas electrode catalyst for lithium‐oxygen batteries

et al. 2019

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“…The catalysts exhibited excellent electrical conductivity and ORR performance, showing that the Tafel slope was 42 mV/dec, which was better than 82 mV/dec of Pt/C. In 2018, Lang et al [58] used DC arc discharge plasma to synthesize CoO nanospheres mixed with La 2 O 3 and Pt/C to prepare highly active CO–La–Pt ternary ORR catalysts for Li–O batteries. The specific capacity and energy density of the electrode reached 3250.2 mAh/g and 8574.2 Wh/kg at 0.025 mA/cm 2 , and the capacity retention rate reached 38.3% after 62 cycles.…”

Section: Non-noble Metal Electrocatalystsmentioning

confidence: 99%

A Review on the Promising Plasma-Assisted Preparation of Electrocatalysts

Liu

et al. 2019

Nanomaterials

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Electrocatalysts are becoming increasingly important for both energy conversion and environmental catalysis. Plasma technology can realize surface etching and heteroatom doping, and generate highly dispersed components and redox species to increase the exposure of the active edge sites so as to improve the surface utilization and catalytic activity. This review summarizes the recent plasma-assisted preparation methods of noble metal catalysts, non-noble metal catalysts, non-metal catalysts, and other electrochemical catalysts, with emphasis on the characteristics of plasma-assisted methods. The influence of the morphology, structure, defect, dopant, and other factors on the catalytic performance of electrocatalysts is discussed.

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Charge-discharge behavior of Li-O2 cell with viologen as redox catalyst: influence of cationic charge

Angulakshmi

Kathiresan

Madasamy

et al. 2019

Ionics

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High performance CoO nanospheres catalyst synthesized by DC arc discharge plasma method as air electrode for lithium-oxygen battery

Cited by 8 publications

References 28 publications

Highly active cluster structure manganese‐based metal organic frameworks (Mn‐MOFs) like corals in the sea synthesized by facile solvothermal method as gas electrode catalyst for lithium‐oxygen batteries

Highly active cluster structure manganese‐based metal organic frameworks (Mn‐MOFs) like corals in the sea synthesized by facile solvothermal method as gas electrode catalyst for lithium‐oxygen batteries

A Review on the Promising Plasma-Assisted Preparation of Electrocatalysts

Charge-discharge behavior of Li-O2 cell with viologen as redox catalyst: influence of cationic charge

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