In situ anchoring of MnO nanoparticles into three-dimensional nitrogen-doped porous carbon framework as a stable anode for high-performance lithium storage

He, Cheng; Li, Jing; Zhao, Xiaoyang; Peng, Xi; Lin, Xiaochun; Ke, Yanfei; Xiao, Xiangming; Zuo, Xiaoxi; Nan, Jun-Min

doi:10.1016/j.apsusc.2022.156217

Cited by 13 publications

(10 citation statements)

References 70 publications

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“…The Warburg impedance coefficient (σ) of Li + is calculated using the following equations − Z ′ = R s + R normalS normalE normalI + R normalc normalt + σ ω − 1 / 2 where σ is the line slope by fitting the plot of Z re vs ω –1/2 before and after cycling. Then, the Li + diffusion coefficient ( D Li + ) is calculated using the following equation , D L i + = 0.5 ( R T / A ρ 2 F 2 C σ ) 2 where R is the molar gas constant (8.314 J mol –1 K –1 ), A is the surface area of the electrode (m 2 ), ρ is the number of electrons per oxidized molecule, T is the test temperature (K), C is the molar concentration of Li + in the crystal, and F is the Faraday constant (96,500 C mol –1 ). Before cycling, σ values are much higher, and the Li + diffusion coefficient is only 2.24 × 10 –18 cm 2 s –1 for C 60 NRs-6012h, whereas for C 60 NRs-603001h, the Li + diffusion coefficient is 1.40 × 10 –17 cm 2 s –1 .…”

Section: Resultsmentioning

confidence: 99%

Enhancing Li-Ion Battery Anodes: Synthesis, Characterization, and Electrochemical Performance of Crystalline C₆₀ Nanorods with Controlled Morphology and Phase Transition

Yin,

Yang,

Jeon

et al. 2024

ACS Appl. Mater. Interfaces

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Recently, C 60 has emerged as a promising anode material for Li-ion batteries, attracting significant interest due to its excellent lithium storage capacity. The electrochemical performance of C 60 as an anode is largely dependent on its internal crystal structure, which is significantly influenced by the synthesis method and corresponding conditions. However, there have been few reports on how the synthesis process affects the crystal structure and Li + storage capacity of C 60 . This study used the liquid−liquid interface precipitation method and a low-temperature annealing process to fabricate one-dimensional C 60 nanorods (NRs). We thoroughly investigated synthesis conditions, including the growth time, drying temperature, annealing time, and annealing atmosphere. The results demonstrate that these synthesis conditions directly impact the morphology, phase transition, and electrochemical efficiency of pure C 60 NRs. Remarkably, the hexagonal close-packed structural C 60 NRs-6012h, in a metastable form, exhibits a reversible Li + storage capacity as an anode material in Li-ion batteries. Furthermore, the face-centered cubic C 60 NRs-603001h electrode shows significantly enhanced rate performance and long-cycle stability. A discharge-specific capacity of 603 mAh g −1 was maintained after 2000 cycles at a current density of 2 A g −1 . This study elucidates the effect of synthesis conditions on C 60 crystals, offering an effective strategy for preparing high-performance C 60 anode materials.

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Section: Resultsmentioning

confidence: 99%

Enhancing Li-Ion Battery Anodes: Synthesis, Characterization, and Electrochemical Performance of Crystalline C₆₀ Nanorods with Controlled Morphology and Phase Transition

Yin,

Yang,

Jeon

et al. 2024

ACS Appl. Mater. Interfaces

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“…As shown in Figure 7 a, there are two clear reduction peaks at about 0.06 V and 0.36 V for MBC, which are the formation of Li 2 O and the reduction in MnO to manganese. During the anodic scan, there is a visible oxidation peak centered at approximately 1.25 V, which corresponds to the oxidation process occurring when Mn is being converted into MnO [ 39 ]. Similar peaks are observed for MSC and MnO, indicating a similar reaction mechanism.…”

Section: Resultsmentioning

confidence: 99%

N-Containing Porous Carbon-Based MnO Composites as Anode with High Capacity and Stability for Lithium-Ion Batteries

Cheng,

Li,

Luo

et al. 2024

Molecules

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MnO has attracted much attention as the anode for Li-ion batteries (LIBs) owing to its high specific capacity. However, the low conductivity limited its large application. An effective solution to solve this problem is carbon coating. Biomass carbon materials have aroused much interest for being low-cost and rich in functional groups and hetero atoms. This work designs porous N-containing MnO composites based on the chemical-activated tremella using a self-templated method. The tremella, after activation, could offer more active sites for carbon to coordinate with the Mn ions. And the as-prepared composites could also inherit the special porous nanostructures of the tremella, which is beneficial for Li+ transfer. Moreover, the pyrrolic/pyridinic N from the tremella can further improve the conductivity and the electrolyte wettability of the composites. Finally, the composites show a high reversible specific capacity of 1000 mAh g−1 with 98% capacity retention after 200 cycles at 100 mA g−1. They also displayed excellent long-cycle performance with 99% capacity retention (relative to the capacity second cycle) after long 1000 cycles under high current density, which is higher than in most reported transition metal oxide anodes. Above all, this study put forward an efficient and convenient strategy based on the low-cost biomass to construct N-containing porous composite anodes with a fast Li+ diffusion rate, high electronic conductivity, and outstanding structure stability.

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“…Nevertheless, most transition metal oxides display poor conductivity, thereby leading to the low utilization efficiency and rate performance of active materials [ 10 , 11 ]. To improve the low conductivity of transition metal oxide electrode materials, generally, they are combined with high-conductivity carbon materials [ 12 , 13 ]. For such composite materials, transition metal oxides only come into contact with conductive carbon on their surface, and the internal conductivity of the transition metal oxide materials has not been improved.…”

Section: Introductionmentioning

confidence: 99%

Facilely Fabricating F-Doped Fe3N Nanoellipsoids Grown on 3D N-Doped Porous Carbon Framework as a Preeminent Negative Material

Zhang,

et al. 2024

Molecules

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Transition metal nitride negative electrode materials with a high capacity and electronic conduction are still troubled by the large volume change in the discharging procedure and the low lithium ion diffusion rate. Synthesizing the composite material of F-doped Fe3N and an N-doped porous carbon framework will overcome the foregoing troubles and effectuate a preeminent electrochemical performance. In this study, we created a simple route to obtain the composite of F-doped Fe3N nanoellipsoids and a 3D N-doped porous carbon framework under non-ammonia atmosphere conditions. Integrating the F-doped Fe3N nanoellipsoids with an N-doped porous carbon framework can immensely repress the problem of volume expansion but also substantially elevate the lithium ion diffusion rate. When utilized as a negative electrode for lithium-ion batteries, this composite bespeaks a stellar operational life and rate capability, releasing a tempting capacity of 574 mAh g–1 after 550 cycles at 1.0 A g–1. The results of this study will profoundly promote the evolution and application of transition metal nitrides in batteries.

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In situ anchoring of MnO nanoparticles into three-dimensional nitrogen-doped porous carbon framework as a stable anode for high-performance lithium storage

Cited by 13 publications

References 70 publications

Enhancing Li-Ion Battery Anodes: Synthesis, Characterization, and Electrochemical Performance of Crystalline C₆₀ Nanorods with Controlled Morphology and Phase Transition

Enhancing Li-Ion Battery Anodes: Synthesis, Characterization, and Electrochemical Performance of Crystalline C₆₀ Nanorods with Controlled Morphology and Phase Transition

N-Containing Porous Carbon-Based MnO Composites as Anode with High Capacity and Stability for Lithium-Ion Batteries

Facilely Fabricating F-Doped Fe3N Nanoellipsoids Grown on 3D N-Doped Porous Carbon Framework as a Preeminent Negative Material

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In situ anchoring of MnO nanoparticles into three-dimensional nitrogen-doped porous carbon framework as a stable anode for high-performance lithium storage

Cited by 13 publications

References 70 publications

Enhancing Li-Ion Battery Anodes: Synthesis, Characterization, and Electrochemical Performance of Crystalline C60 Nanorods with Controlled Morphology and Phase Transition

Enhancing Li-Ion Battery Anodes: Synthesis, Characterization, and Electrochemical Performance of Crystalline C60 Nanorods with Controlled Morphology and Phase Transition

N-Containing Porous Carbon-Based MnO Composites as Anode with High Capacity and Stability for Lithium-Ion Batteries

Facilely Fabricating F-Doped Fe3N Nanoellipsoids Grown on 3D N-Doped Porous Carbon Framework as a Preeminent Negative Material

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Enhancing Li-Ion Battery Anodes: Synthesis, Characterization, and Electrochemical Performance of Crystalline C₆₀ Nanorods with Controlled Morphology and Phase Transition

Enhancing Li-Ion Battery Anodes: Synthesis, Characterization, and Electrochemical Performance of Crystalline C₆₀ Nanorods with Controlled Morphology and Phase Transition