Strongly coupled N-doped carbon/Fe3O4/N-doped carbon hierarchical micro/nanostructures for enhanced lithium storage performance

Ma, Tiantian; Liu, Xianghong; Sun, Lu; Xu, Yi; Zheng, Lingli; Zhang, Jun

doi:10.1016/j.jechem.2018.09.017

Cited by 42 publications

(18 citation statements)

References 47 publications

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“…The N 1s spectra (Figure e) after deconvolution can be attributed to three N species, and their structure is schematically shown in Figure f. The peaks at 403.1, 400.5, and 398.1 eV correspond to graphitic N, pyrrolic N, and pyridinic N, respectively . The calculated content of different N compositions is shown in Table S1.…”

Section: Resultsmentioning

confidence: 99%

“…PPy NTs were synthesized according to our previous work . Typically, 0.01 mol MO and 0.01 mol FeCl 3 were added to 200 mL of H 2 O and stirred for 30 min.…”

Section: Methodsmentioning

confidence: 99%

“…Considering the simple preparation method and the excellent potassium storage performance of the NCTP, it has a promising prospect for application in KIBs. 34 Typically, 0.01 mol MO and 0.01 mol FeCl 3 were added to 200 mL of H 2 O and stirred for 30 min. Then, 0.01 mol Py was added dropwise to the solution and stirred for 12 h. The generated PPy NTs were vacuum filtered with a nylon membrane with a pore size of 0.45 μm and washed with water and ethanol several times.…”

Section: Introductionmentioning

confidence: 99%

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Free-Standing N-Doped Carbon Nanotube Films with Tunable Defects as a High Capacity Anode for Potassium-Ion Batteries

Wang

Sun

et al. 2020

ACS Appl. Mater. Interfaces

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Potassium-ion batteries (KIBs) have aroused enormous interest for future energy storage technology. However, the current anodes for KIBs greatly suffer from the rapid capacity fading and inferior rate capability. Herein, a free-standing flexible anode, that is, nitrogen-doped carbon nanotube paper (NCTP), which is derived from the pyrolysis of organic polypyrrole materials, is demonstrated for high-performance potassium storage. The correlations between the material structure and electrochemical properties have been investigated by a series of material analysis and characterizations, as well as electrochemical tests. The research results show that the annealing temperature dramatically affects the N-doping content, the carbon defects, and the graphitization degree. Electrochemical tests indicate that the NCTP annealed at 700 °C displays the best performances with a high reversible capacity of 250.1 mA h g–1 at 100 mA g–1 and superior rate capability retaining 133 mA h g–1 at 5 A g–1. The excellent electrochemical properties are derived from a synergic contribution from the moderate N-doping, carbon defect, and high electronic conductivity of the materials. The facile pyrolysis strategy and the appealing performances involved in this work could provide some hints to manipulate high-performance anode materials of KIBs.

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Section: Resultsmentioning

confidence: 99%

“…PPy NTs were synthesized according to our previous work . Typically, 0.01 mol MO and 0.01 mol FeCl 3 were added to 200 mL of H 2 O and stirred for 30 min.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Free-Standing N-Doped Carbon Nanotube Films with Tunable Defects as a High Capacity Anode for Potassium-Ion Batteries

Wang

Sun

et al. 2020

ACS Appl. Mater. Interfaces

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“…However, the limited lithium resources as well as its uneven distribution will exacerbate prices to soar, thus giving a tremendous challenge to the large-scale applications of LIBs [3,4]. Alternatively, sodium ion batteries (SIBs) have received considerable attention in view of the relatively high abundance and uniform distribution of sodium resources as well as the similar electrochemical properties to lithium [5][6][7][8][9]. However, compared with Li + (0.69 Å), the larger ion radius of Na + (0.98 Å) could cause sluggish kinetics for conventional electrode materials, thus developing suitable electrode materials is highly desirable for SIBs [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

A bipolar metal phthalocyanine complex for sodium dual-ion battery

Wang

et al. 2021

Journal of Energy Chemistry

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“…al group reported a series of coreshell structured electrode materials, such as carbon/Sn/carbon spheres, [42] carbon-riveted graphene/SnO 2 nanorods [43] and Ndoped carbon-riveted Fe 3 O 4 /N-doped carbon nanocomposites. [44] These works indicate that constructing core-shell structure is indeed an effective method to design electrode materials with enhanced performances. In our research, the thickness of carbon coating plays a crucial role to promote the electrochemical performance of C@SnO 2 @CNTs electrode.…”

Section: Introductionmentioning

confidence: 99%

Rational Design of Core‐Shell Structured C@SnO₂@CNTs Composite with Enhanced Lithium Storage Performance

et al. 2020

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SnO2 is considered to be a potential anode material in lithium‐ion batteries (LIBs) owing to its high specific capacity of 1494 mAh g−1. Herein, we reported the unique core‐shell structured C@SnO2@CNTs composite with controllable outer carbon thickness, which was synthesized by a simple hydrothermal method and subsequent annealing process. Results show that the C@SnO2@CNTs with outer carbon layer around 1.8 nm displays high reversible capacity and long‐term cycling performance. It maintains a capacity of 850 mAh g−1 should be at current density of 200 mA g−1 up to 100 cycles. Further analysis found that the C@SnO2@CNTs composite exhibits excellent structural stability even after 100 cycles, which contributes to provide a highway for charge transmission. These results give rise to superior electrochemical performance of C@SnO2@CNTs composite and provide new insight for design metal oxide composite anode materials in LIBs field.

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Strongly coupled N-doped carbon/Fe3O4/N-doped carbon hierarchical micro/nanostructures for enhanced lithium storage performance

Cited by 42 publications

References 47 publications

Free-Standing N-Doped Carbon Nanotube Films with Tunable Defects as a High Capacity Anode for Potassium-Ion Batteries

Free-Standing N-Doped Carbon Nanotube Films with Tunable Defects as a High Capacity Anode for Potassium-Ion Batteries

A bipolar metal phthalocyanine complex for sodium dual-ion battery

Rational Design of Core‐Shell Structured C@SnO₂@CNTs Composite with Enhanced Lithium Storage Performance

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Strongly coupled N-doped carbon/Fe3O4/N-doped carbon hierarchical micro/nanostructures for enhanced lithium storage performance

Cited by 42 publications

References 47 publications

Free-Standing N-Doped Carbon Nanotube Films with Tunable Defects as a High Capacity Anode for Potassium-Ion Batteries

Free-Standing N-Doped Carbon Nanotube Films with Tunable Defects as a High Capacity Anode for Potassium-Ion Batteries

A bipolar metal phthalocyanine complex for sodium dual-ion battery

Rational Design of Core‐Shell Structured C@SnO2@CNTs Composite with Enhanced Lithium Storage Performance

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Rational Design of Core‐Shell Structured C@SnO₂@CNTs Composite with Enhanced Lithium Storage Performance