High content of nitrogen doped porous carbon prepared by one-step calcination for enviable rate lithium ion batteries

Ou, Junke; Deng, Haixin; Li, Bo; Li, Kaiyang; Li, Mengtao

doi:10.1016/j.diamond.2023.109696

Cited by 9 publications

(3 citation statements)

References 70 publications

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“…Nitrogen‐doped carbon can create defects for lithium storage, improving the electric conductivity. Besides, Nitrogen‐doped carbon as electrode material can increase the capacity and cycle life of batteries, and improving the energy density [36] . For example, Zhang.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, Nitrogen-doped carbon as electrode material can increase the capacity and cycle life of batteries, and improving the energy density. [36] For example, Zhang. et al achieved superior structural stability and enhanced Li + transport by utilizing synergistic effects derived from N-doped carbon, and the prepared core-shell ZnTe@N doped carbon nanowires provided high specific capacity and advanced rate performance.…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen‐rich Graphite Flake from Hemp as Anode Material for High Performance Lithium‐ion Batteries

Wang

Sui

Sha

et al. 2023

Chemistry An Asian Journal

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Biomass-derived carbon (BC) has attracted extensive attention as anode material for lithium ion batteries (LiBs) due to its natural hierarchical porous structure and rich heteroatoms that can adsorb Li + . However, the specific surface area of pure biomass carbon is generally small, so we can help NH 3 and inorganic acid produced by urea decomposition to strip biomass, improve its specific surface area and enrich nitrogen elements. The nitrogen-rich graphite flake obtained by the above treatment of hemp is named NGF. The product that has a high nitrogen content of 10.12% has a high specific surface area of 1151.1 m 2 g À 1 . In the lithium ion battery test, the capacity of NGF is 806.6 mAh g À 1 at 30 mA g À 1 , which is twice than that of BC. NGF also showed excellent performance that is 429.2 mAh g À 1 under high current testing at 2000 mA g À 1 . The reaction process kinetics is analyzed and we found that the outstanding rate performance is attributed to the large-scale capacitance control. In addition, the results of the constant current intermittent titration test indicate that the diffusion coefficient of NGF is greater than that of BC. This work proposes a simple method of nitrogen-rich activated carbon, which has a significantly commercial prospect.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nitrogen‐rich Graphite Flake from Hemp as Anode Material for High Performance Lithium‐ion Batteries

Wang

Sui

Sha

et al. 2023

Chemistry An Asian Journal

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“…Porous carbon (PC) is a class of carbon materials with certain pore structures, whose properties are mainly determined by the pore size, pore amounts and pore distribution [1][2][3][4]. Because of its high surface area, strong resistance to acid and base, controllable pore size and structure, facile surface modification and excellent electrical conductivity, the PCs have great applications in various fields, including lithium-ion batteries [5][6][7][8][9], supercapacitors [10][11][12][13], catalysis [14][15][16][17][18][19][20] and gas adsorption [21][22][23], and has become a focus of attention in recent years. Meanwhile, the abundant carbon sources (carbon precursors) used to prepare PC, such as biomass [24,25], polymers [26], metal-organic frameworks [13] and carbon-containing organic salts [27], and the various methods to prepare PC, enable the PC, exhibiting multitudinous structures and properties.…”

Section: Introductionmentioning

confidence: 99%

Templating Synthesis of Hierarchically Porous Carbon with Magnesium Salts for Electrocatalytic Reduction of 4-Nitrophenol

Gan

Xiao

2023

Catalysts

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Hierarchically porous carbon (PC) was synthesized by a templating method, using magnesium salts (Mg(HCO3)2, MgC2O4 and MgO) as template precursors and citric acid as carbon precursor. During the carbonization process, besides the production of MgO particles, many gases (e.g., CO2/NO2/H2O) were also released and acted as a porogen to generate pores in carbon. The resulting composite (MgO@C) was subsequently treated with HCl solution to remove the MgO templates, yielding hierarchically porous carbon. The surface oxygen functional groups over porous carbon were characterized by TPD and XPS, which showed that the PC-bic, synthesized using Mg(HCO3)2 as the template precursor, had the highest value among the PCs. As expected, the PC-bic exhibited the best performances for electrocatalytic reduction of 4-nitrophenol, with a peak current of −135.5 μA at −0.679 V. The effects of 4-nitrophenol concentration, buffer solution pH and scanning rate on the electrocatalytic activities, as well as the stability of PC-bic for the reaction were investigated.

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An interplay between heteroatom doping concentration vs electrochemical performance in foetida-derived carbon

Yarramsetti,

Maheshwaran,

Sangaraju

et al. 2024

Ionics

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High content of nitrogen doped porous carbon prepared by one-step calcination for enviable rate lithium ion batteries

Cited by 9 publications

References 70 publications

Nitrogen‐rich Graphite Flake from Hemp as Anode Material for High Performance Lithium‐ion Batteries

Nitrogen‐rich Graphite Flake from Hemp as Anode Material for High Performance Lithium‐ion Batteries

Templating Synthesis of Hierarchically Porous Carbon with Magnesium Salts for Electrocatalytic Reduction of 4-Nitrophenol

An interplay between heteroatom doping concentration vs electrochemical performance in foetida-derived carbon

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