Rational design of Ni3(HITP)2@GO composite for lithium-sulfur cathode

Zhang, Tao; Wu, Yangli; Yin, Yutao; Chen, Huanhuan; Gao, Cong; Xiao, Yawen; Zhang, Xinglong; Wu, Jiansheng; Zheng, Bing; Li, Sheng

doi:10.1016/j.apsusc.2021.151479

Cited by 10 publications

(2 citation statements)

References 30 publications

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“…Furthermore, the addition of MWCNTs can improve the conductivity and charge transfer of composite electrodes, as MWCNTs have a π-conjugated sp 2 -carbon skeleton similar to graphene, and Ni-HHTP has a highly conjugated structure, so there may be interactions between the two, namely π-π interactions, rather than simple physical mixing. 39,40 Figure S1 shows the FT-IR spectrum. The peaks of Ni-HHTP at 1224 cm −1 and 1464 cm −1 are caused by the stretching vibrations of C=C and C-O on the benzene skeleton, respectively.…”

Section: Resultsmentioning

confidence: 99%

High Sensitivity Detection of Nitrite Electrochemical Sensor Modified with MOF Composite Materials

Li,

Zou,

Chen

et al. 2023

J. Electrochem. Soc.

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Depositing composites of Ni-HHTP and MWCNTs on a glassy carbon electrode(GCE) have developed a sensitive and facile electrochemical sensor for nitrite detection. Ni-HHTP@MWCNTs composites were synthesized in situ using 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP), nickel acetate tetrahydrate Ni(OAc)2·4H2O and multi-walled carbon nanotubes (MWCNTs) by hydrothermal method. The composite electrode was prepared by the coating method. The synergistic combination of Ni-HHTP and MWCNTs enables the electrode to possess fast electronic conductivity and generate sensitive electrochemical signals for sodium nitrite (NaNO2). The controlled variable approach determines the best test conditions for the analyte and obtains a susceptible response signal. The composite electrode has an extensive linear response range of 1–10000 μM to NaNO2, with a detection limit of 0.95 μM and sensitivity of 0.96 mA·mM−1·cm−2, which shows excellent reproducibility and stability performance. There are no interferences from the most common ions. The electrochemical analysis method was used for nitrite detection in actual water samples with a recovery rate of 97.2%–103.7%, indicating this composite material’s practical application potential. The mechanism of the specific electrochemical process on the modified electrode was also explored. This work preliminarily explored new electrochemical sensors for high-precision nitrite detection and precise sensing in analysis tests.

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Section: Resultsmentioning

confidence: 99%

High Sensitivity Detection of Nitrite Electrochemical Sensor Modified with MOF Composite Materials

Li,

Zou,

Chen

et al. 2023

J. Electrochem. Soc.

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“…In Table 1, the work is compared with the previous graphene-based composite lithiumsulfur battery cathode, and although the initial discharge capacity is slightly lower at 847.51 mAh/g, the material shows excellent capacity retention over long cycles, maintaining a high capacity retention and low decay rate (0.0448%) over 500 cycles, demonstrating that the material has good structural stability and can achieve longer cycle life and better Coulomb efficiency. Co 9 S 8 @S/GO 1057 mAh/g at 0.1 C 0.033% after 100 cycles [54] TiO 2 NTs/GO hybrid 850.7 mAh/g at 0.1 C (after 100 cycles) 0.409% after 100 cycles [55] Ni 3 (HITP) 2 @GO/S 959.3 mAh/g at 0.5 C 0.1325% after 400 cycles [56] NCF-G@S 923.8 mAh/g at 0.5 C 0.212% after 150 cycles [21] CC@rGO 847.51 mAh/g at 0.5 C 0.0448% after 500 cycles This work…”

Section: Resultsmentioning

confidence: 99%

Graphene/Heterojunction Composite Prepared by Carbon Thermal Reduction as a Sulfur Host for Lithium-Sulfur Batteries

Gao

Shi

et al. 2023

Materials

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An interlayer nanocomposite (CC@rGO) consisting of a graphene heterojunction with CoO and Co9S8 was prepared using a simple and low-cost hydrothermal calcination method, which was tested as a cathode sulfur carrier for lithium-sulfur batteries. The CC@rGO composite comprises a spherical heterostructure uniformly distributed between graphene sheet layers, preventing stacking the graphene sheet layer. After the introduction of cobalt heterojunction on a graphene substrate, the Co element content increases the reactive sites of the composite and improves its electrochemical properties to some extent. The composite exhibited good cycling performance with an initial discharge capacity of 847.51 mAh/g at 0.5 C and a capacity decay rate of 0.0448% after 500 cycles, which also kept 452.91 mAh/g at 1 C and in the rate test from 3 C back to 0.1 C maintained 993.27 mAh/g. This article provides insight into the design of cathode materials for lithium-sulfur batteries.

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A Sustainable and Cost‐Effective Nitrogen‐Doped Three‐Dimensional Porous Carbon for High‐Performance Lithium‐Sulfur Batteries

Ma,

Liu,

Chen

et al. 2024

ChemSusChem

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Affordable clean energy is one of the major sustainable development goals that can transform our world. At present, researchers are working to develop cheap electrode materials to develop energy storage devices, the Lithium‐sulfur (Li‐S) battery is considered a promising energy storage device owing to its excellent theoretical specific capacity and energy density. Herein, utilizing the ramie degumming waste liquid as raw materials, after freeze‐drying and high‐temperature calcination, a sustainable and cost‐effective three‐dimensional (3D) porous nitrogen‐doped ramie carbon (N‐RC) was synthesized. The N‐RC calcined at 800 °C (N‐RC‐800) shows a superior high specific surface area of 1491.85 m2·g‐1 and a notable high pore volume of 0.90 cm3·g‐1. When employed as a sulfur host, the S@N‐RC‐800 cathode illustrates excellent initial discharge capacity (1120.6 mAh·g‐1) and maintains a reversible capacity of 625.4 mAh·g‐1 after 500 cycles at 1 C. Simultaneously, the S@N‐RC‐800 cathode also shows excellent coulombic efficiency and ideal rate performance. Such exceptional electrochemical performance of S@N‐RC‐800 can be primarily attributable to N‐RC’s high specific surface area, high porosity, and abundant polar functional groups. This green and low‐cost synthesis strategy offers a new avenue for harnessing the potential of waste biomass in the context of clean energy storage.

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Rational design of Ni3(HITP)2@GO composite for lithium-sulfur cathode

Cited by 10 publications

References 30 publications

High Sensitivity Detection of Nitrite Electrochemical Sensor Modified with MOF Composite Materials

High Sensitivity Detection of Nitrite Electrochemical Sensor Modified with MOF Composite Materials

Graphene/Heterojunction Composite Prepared by Carbon Thermal Reduction as a Sulfur Host for Lithium-Sulfur Batteries

A Sustainable and Cost‐Effective Nitrogen‐Doped Three‐Dimensional Porous Carbon for High‐Performance Lithium‐Sulfur Batteries

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