Facile and cost-effective manipulation of hierarchical carbon nanosheets for pseudocapacitive lithium/potassium storage

Peng, Tingyue; Tan, Zhonghao; Zhang, Mengdi; Li, Linqing; Wang, Yixian; Guan, Lu; Tan, Xiaojie; Pan, Liqing; Fang, Haiqiu; Wu, Mingbo

doi:10.1016/j.carbon.2020.04.034

Cited by 30 publications

(14 citation statements)

References 69 publications

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“…According to the relationship between the tested current ( i ) and scanning rate ( v ), the capacitance effect can be estimated. The corresponding peak current varies with the sweep rate can be expressed as follows [ 61 ]

\begin{matrix} i = a \cdot v b \end{matrix}

\begin{matrix} \log (i) = b \log (v) + \log (a) \end{matrix}

…”

Section: Resultsmentioning

confidence: 99%

In Situ Electrospinning Synthesis of N‐Doped C Nanofibers with Uniform Embedding of Mn Doped MFe₁₋_xMn_xPO₄ (M = Li, Na) as a High Performance Cathode for Lithium/Sodium‐Ion Batteries

Chen

et al. 2020

Adv Materials Inter

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With growing development of sustainable energy storage technology, rechargeable cells especially the lithium-ion batteries (LIBs) have been applied in home electric appliances, Using polyvinyl alcohol and N-rich polyacrylonitrile as carbon sources, uniform MFe 1-x Mn x PO 4 (M = Li, Na)/N-doped C nanofibers are synthesized by sol-gel pretreatment and an electrospinning method followed by calcination. The as-prepared nanofibers exhibit a 3D homogenous network with uniform distribution of MFe 1−x Mn x PO 4 nanoparticles. The lattice distorts after Mn-doping without altering the original crystalline structure, increasing conductivity and enhancing the efficiency of Li + /Na + diffusion. When applied for lithium ion batteries, the optimized LiFe 0.8 Mn 0.2 PO 4 /C nanofibers deliver a considerable initial capacity of 169.9 mAh g −1 with coulombic efficiency of 92.4%. It also displays the excellent cycling stability with reversible capacity of 160 mAh g −1 after 200 cycles at 0.1 C and high rate performances with the specific capacity of 93 mAh g −1 at 5 C. Furthermore, NaFe x Mn 1−x PO 4 /N-doped C nanofibers are also synthesized by the same method for sodium-ion batteries, which exhibit an initial capacity of 134 mAh g −1 and specific capacity of 106 mAh g −1 at 0.1 C and 90 mAh g −1 at 1 C after 200 cycles. Owing to the facile fabrication process, these nanofibers are promising cathodes for lithium/sodium ion batteries with excellent electrochemical performances.

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\begin{matrix} i = a \cdot v b \end{matrix}

\begin{matrix} \log (i) = b \log (v) + \log (a) \end{matrix}

…”

Section: Resultsmentioning

confidence: 99%

In Situ Electrospinning Synthesis of N‐Doped C Nanofibers with Uniform Embedding of Mn Doped MFe₁₋_xMn_xPO₄ (M = Li, Na) as a High Performance Cathode for Lithium/Sodium‐Ion Batteries

Chen

et al. 2020

Adv Materials Inter

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“…Moreover, nitrogen doping can be obtained by in situ growth of small nitrogen-containing molecules and carbon sources, or by direct thermal decomposition of nitrogen-containing organic precursors. Peng et al have reported using melamine and pitch as nitrogen sources and the carbon precursors to synthesize N-doped 2D carbon nanosheets by a molten salt method for LIB, which demonstrates a high capacity of more than 800 mAh g −1 at a current density of 0.1 A g −1 [ 22 ]. Zheng et al have reported to directly pyrolyze nitrogen-containing zeolite imidazolate skeleton ZIF-8 into N-doped 3D carbon material under N 2 [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Tuning the Defects of Two-Dimensional Layered Carbon/TiO2 Superlattice Composite for a Fast Lithium-Ion Storage

Liu

Wang

et al. 2022

Materials

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Defect engineering is one of the effective ways to improve the electrochemical property of electrode materials for lithium-ion batteries (LIB). Herein, an organic functional molecule of p-phenylenediamine is embedded into two-dimensional (2D) layered TiO2 as the electrode for LIB. Then, the 2D carbon/TiO2 composites with the tuning defects are prepared by precise control of the polymerization and carbothermal atmospheres. Low valence titanium in metal oxide and nitrogen-doped carbon nanosheets can be obtained in the carbon/TiO2 composite under a carbonization treatment atmosphere of N2/H2 gas, which can not only increase the electronic conductivity of the material but also provide sufficient electrochemical active sites, thus producing an excellent rate capability and long-term cycle stability. The prepared composite can provide a high capacity of 396.0 mAh g−1 at a current density of 0.1 A g−1 with a high capacitive capacity ratio. Moreover, a high specific capacity of 80.0 mAh g−1 with retention rate of 85% remains after 10,000 cycles at 3.0 A g−1 as well as the Coulomb efficiency close to 100%. The good rate-capability and cycle-sustainability of the layered materials are ascribed to the increase of conductivity, the lithium-ion transport channel, and interfacial capacitance due to the multi-defect sites in the layered composite.

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“…Through researching carbon materials as LICs cathode, acquiring a high specific surface area and a suitable pore‐size distribution design are effective ways to improve the energy storage capacity of electric double layer carbon‐based materials. Introducing heteroatom doping or function groups to provide pseudo‐capacitance is also viable [27,62] . In the case of carbon materials as LICs anode, the main purpose of the research is devoted to improving the Li + diffusion kinetics in the bulk materials and cycling stability.…”

Section: Introductionmentioning

confidence: 99%

“…Introducing heteroatom doping or function groups to provide pseudo-capacitance is also viable. [27,62] In the case of carbon materials as LICs anode, the main purpose of the research is devoted to improving the Li + diffusion kinetics in the bulk materials and cycling stability. By appropriately controlling the microscopic morphology and delicate structure design, the conductivity and structure stability of carbon materials can be improved, therefore, the electrochemical performance of carbon-based LICs can be enhanced.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances on Carbon‐Based Materials for High Performance Lithium‐Ion Capacitors

Liu

Zhang

et al. 2021

Batteries & Supercaps

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Lithium‐ion capacitors (LICs) combining of lithium‐ion batteries (LIBs) and supercapacitors (SCs) with improved performance bridge the gap between these two devices, and have attracted huge attention in the field of high‐efficiency electrochemical energy storage. The behavior of electrode materials is essential for the realization of high energy and high output LICs devices. As the most widely utilized electrodes, carbon materials demonstrated their ability in LICs with fast charge storage and long life‐span. Here, an overview of carbon materials for advanced LICs applications is given. The advantages and shortcomings of carbon materials as electrodes are systematically analyzed with the purpose of disclosing their influence on LICs devices. In light of this analysis, the critical aspects are discussed, which should be dealt with in the future for the realization of desires high‐performance LICs devices.

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Facile and cost-effective manipulation of hierarchical carbon nanosheets for pseudocapacitive lithium/potassium storage

Cited by 30 publications

References 69 publications

In Situ Electrospinning Synthesis of N‐Doped C Nanofibers with Uniform Embedding of Mn Doped MFe₁₋_xMn_xPO₄ (M = Li, Na) as a High Performance Cathode for Lithium/Sodium‐Ion Batteries

In Situ Electrospinning Synthesis of N‐Doped C Nanofibers with Uniform Embedding of Mn Doped MFe₁₋_xMn_xPO₄ (M = Li, Na) as a High Performance Cathode for Lithium/Sodium‐Ion Batteries

Tuning the Defects of Two-Dimensional Layered Carbon/TiO2 Superlattice Composite for a Fast Lithium-Ion Storage

Recent Advances on Carbon‐Based Materials for High Performance Lithium‐Ion Capacitors

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Facile and cost-effective manipulation of hierarchical carbon nanosheets for pseudocapacitive lithium/potassium storage

Cited by 30 publications

References 69 publications

In Situ Electrospinning Synthesis of N‐Doped C Nanofibers with Uniform Embedding of Mn Doped MFe1−xMnxPO4 (M = Li, Na) as a High Performance Cathode for Lithium/Sodium‐Ion Batteries

In Situ Electrospinning Synthesis of N‐Doped C Nanofibers with Uniform Embedding of Mn Doped MFe1−xMnxPO4 (M = Li, Na) as a High Performance Cathode for Lithium/Sodium‐Ion Batteries

Tuning the Defects of Two-Dimensional Layered Carbon/TiO2 Superlattice Composite for a Fast Lithium-Ion Storage

Recent Advances on Carbon‐Based Materials for High Performance Lithium‐Ion Capacitors

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In Situ Electrospinning Synthesis of N‐Doped C Nanofibers with Uniform Embedding of Mn Doped MFe₁₋_xMn_xPO₄ (M = Li, Na) as a High Performance Cathode for Lithium/Sodium‐Ion Batteries

In Situ Electrospinning Synthesis of N‐Doped C Nanofibers with Uniform Embedding of Mn Doped MFe₁₋_xMn_xPO₄ (M = Li, Na) as a High Performance Cathode for Lithium/Sodium‐Ion Batteries