Synchronous constructing ion channels and confined space of Co3O4 anode for high-performance lithium-ion batteries

Zhou, Yan; Wang, Chao; Chen, Feiran; Wang, Tingjuan; Ni, Yaoyao; Sun, Hongxia; Ye, Nan; Geng, Baoyou

doi:10.1007/s12274-022-4281-y

Cited by 36 publications

(22 citation statements)

References 47 publications

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“…In the following scan cycles, this peak shifts to a higher voltage and becomes weaker because of the activation process and stable SEI film. The peak at ∼2.1 V in the anodic scan is a result of the oxidation of Co to Co 3 O 4 . The CV curves almost overlap in subsequent cycles, indicating superior reversibility and good cycling stability during the charge/discharge processes …”

Section: Resultsmentioning

confidence: 96%

Recycling of Plastic Wastes for the Mass Production of Yolk–Shell-Nanostructured Co₃O₄@C for Lithium-Ion Batteries

Dou

Gong

et al. 2023

ACS Appl. Nano Mater.

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Facing the ever-increasing production of municipal plastics, great efforts have been made to recycle plastic waste into high-value-added products. As the main components of plastic wastes, polypropylene (PP), polyethylene (PE), and polystyrene (PS) are uncharred polymers that are difficult to carbonize under normal conditions. To address this issue, transition-metal catalysts (Co 3 O 4 ) were introduced to carbonize plastic waste with high carbon yields. Herein, mixed-waste plastics (PP/PE/PS) were carbonized into yolk−shell-structured (YSS) Co 3 O 4 @C nanomaterials with a high yield of 49 wt %. A high capacity of 1066 mAh g −1 was achieved at 0.1 A g −1 after 100 cycles in lithium-ion batteries (LIBs). Moreover, galvanostatic intermittent titration technique results estimated that the YSS Co 3 O 4 @C possessed a higher Li + diffusion coefficient, ensuring improved cycling stability and rate performance. The present strategy not only provides a potential approach for recycling waste plastics into high-value carbon materials but also shows the possibility for the mass production of high-performance nanosized anode materials for LIBs in a commercial manner.

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Section: Resultsmentioning

confidence: 96%

Recycling of Plastic Wastes for the Mass Production of Yolk–Shell-Nanostructured Co₃O₄@C for Lithium-Ion Batteries

Dou

Gong

et al. 2023

ACS Appl. Nano Mater.

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“…The rate capability curves of porous Co 3 O 4 microspheres, Co 3 O 4 /VG/CNT composite microspheres, and dense Co 3 O 4 microspheres are shown in Figure c. Due to electrode polarization, the charge/discharge specific capacity decreased with the increase of current density. − Co 3 O 4 /VG/CNT composite microspheres showed the highest charge/discharge specific capacity at different current densities among the prepared three microspheres; the capacity difference increased with the increase of current density, and the reversible specific capacity difference between Co 3 O 4 /VG/CNT and dense Co 3 O 4 microspheres was as high as 365 mA h g –1 at 1000 mA g –1 . The average reversible specific capacities of Co 3 O 4 /VG/CNT composite microspheres were 1170, 972, 766, and 526 mA h g –1 at 100, 300, 500, and 1000 mA g –1 , respectively, and the high reversible specific capacity of 1103 mA h g –1 was achieved when the current density was recovered to 100 mA g –1 .…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Co₃O₄/VG/CNT Composite Microspheres with Excellent Lithium Storage Performance

Yang

Zhu

et al. 2022

Ind. Eng. Chem. Res.

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In order to improve the conductivity of Co3O4, Co3O4/VG/CNT composite microspheres were prepared by facile spray drying method and subsequently plasma-enhanced chemical vapor deposition method. A three-dimensional conductivity network was constructed by vertical graphenes and CNTs distributed throughout the microspheres, the transmission of electrons was greatly promoted, excellent rate performance was realized, and the high average reversible specific capacity of 526 mA h g–1 was still retained at 1000 mA g–1. Besides, thanks to the abundant pores distributed in the whole microspheres, the stress could be greatly released during the repeated charging/discharging processes, long cycling stability could be achieved, and the reversible specific capacity as high as 396 mA h g–1 was retained after 1000 cycles at 800 mA g–1. The preparation of Co3O4/VG/CNT composite microspheres can provide a new idea for high-performance lithium-ion battery anode materials.

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“…Also, a needle-shaped Co 3 O 4 /graphene composite was hydrothermally synthesized and demonstrated a maximum capacitance of 157.7 F g –1 at a current density of 0.1 A g –1 in a 2 mol L –1 KOH solution . AuNPs decorated with Co 3 O 4 NPs exhibit a specific capacitance of 681 F g –1 higher than that of pristine Co 3 O 4 of 368 F g –1 ; in addition to this, many studies have been conducted on the application of Co 3 O 4 in supercapacitors. − …”

Section: Introductionmentioning

confidence: 99%

Phytosynthesis of Co₃O₄ Nanoparticles as the High Energy Storage Material of an Activated Carbon/Co₃O₄ Symmetric Supercapacitor Device with Excellent Cyclic Stability Based on a Na₂SO₄ Aqueous Electrolyte

et al. 2022

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The benign preparation of cobalt oxide nanoparticles (Co 3 O 4 -NPs) was performed using marine red algae extract ( Grateloupia sparsa ) as a simple, cost-effective, scalable, and one-pot hydrothermal technique. The nominated extract was employed as an environmental reductant and stabilizing agent. The resultant product showed the typical peak of Co 3 O 4 -NPs around 400 nm wavelength as ascertained by UV–vis spectroscopy. Size and morphological techniques combined with X-ray diffraction (XRD) showed the small size of Co 3 O 4 -NPs deformed in a spherical shape. The activated carbon (AC) electrode and Co 3 O 4 -NP electrode delivered a specific capacitance ( C sp ) of 125 and 182 F g –1 at 1 A g –1 , respectively. The energy density of the AC and AC/Co 3 O 4 electrodes with a power density of 543.44 and 585 W kg –1 was equal to 17.36 and 25.27 Wh kg –1 , respectively. The capacitance retention of designed electrodes was 99.2 and 99.5% after 3000 cycles. Additionally, a symmetric AC/Co 3 O 4 //AC/Co 3 O 4 supercapacitor device had a specific capacitance ( C sp ) of 125 F g –1 and a high energy density of 55 Wh kg –1 at a power density of 650 W kg –1 . Meanwhile, the symmetric device exhibited superior cyclic stability after 8000 cycles, with a capacitance retention of 93.75%. Overall, the adopted circular criteria, employed to use green technology to avoid noxious chemicals, make the AC/Co 3 O 4 nanocomposite an easily accessible electrode for energy storage applications.

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Synchronous constructing ion channels and confined space of Co3O4 anode for high-performance lithium-ion batteries

Cited by 36 publications

References 47 publications

Recycling of Plastic Wastes for the Mass Production of Yolk–Shell-Nanostructured Co₃O₄@C for Lithium-Ion Batteries

Recycling of Plastic Wastes for the Mass Production of Yolk–Shell-Nanostructured Co₃O₄@C for Lithium-Ion Batteries

Synthesis of Co₃O₄/VG/CNT Composite Microspheres with Excellent Lithium Storage Performance

Phytosynthesis of Co₃O₄ Nanoparticles as the High Energy Storage Material of an Activated Carbon/Co₃O₄ Symmetric Supercapacitor Device with Excellent Cyclic Stability Based on a Na₂SO₄ Aqueous Electrolyte

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Synchronous constructing ion channels and confined space of Co3O4 anode for high-performance lithium-ion batteries

Cited by 36 publications

References 47 publications

Recycling of Plastic Wastes for the Mass Production of Yolk–Shell-Nanostructured Co3O4@C for Lithium-Ion Batteries

Recycling of Plastic Wastes for the Mass Production of Yolk–Shell-Nanostructured Co3O4@C for Lithium-Ion Batteries

Synthesis of Co3O4/VG/CNT Composite Microspheres with Excellent Lithium Storage Performance

Phytosynthesis of Co3O4 Nanoparticles as the High Energy Storage Material of an Activated Carbon/Co3O4 Symmetric Supercapacitor Device with Excellent Cyclic Stability Based on a Na2SO4 Aqueous Electrolyte

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Recycling of Plastic Wastes for the Mass Production of Yolk–Shell-Nanostructured Co₃O₄@C for Lithium-Ion Batteries

Recycling of Plastic Wastes for the Mass Production of Yolk–Shell-Nanostructured Co₃O₄@C for Lithium-Ion Batteries

Synthesis of Co₃O₄/VG/CNT Composite Microspheres with Excellent Lithium Storage Performance

Phytosynthesis of Co₃O₄ Nanoparticles as the High Energy Storage Material of an Activated Carbon/Co₃O₄ Symmetric Supercapacitor Device with Excellent Cyclic Stability Based on a Na₂SO₄ Aqueous Electrolyte