MOF-derived hollow Co<sub>4</sub>S<sub>3</sub>/C nanosheet arrays grown on carbon cloth as the anode for high-performance Li-ion batteries

Shi, Mingchen; Wang, Qiang; Hao, Junwei; Min, Huihua; You, Hairui; Liu, Xiaomin; Ye, Hui

doi:10.1039/d0dt03070h

Cited by 22 publications

(6 citation statements)

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“…It can be clearly seen that there are four characteristic peaks at 187, 466, 512, 609, and 674 cm À1 in the Co 3 O 4 sample, which correspond to the molecular vibration of F 2g , E g , F 2g , F 2g , and A 1g , respectively. 33,34 Meanwhile, the peak at 473, 517, 683 cm À1 are attributed to the E g , F 2g , A 1g modes of cobalt sulde, 35 which further conrm that the complete suldation of Co 3 O 4 to Co 4 S 3 . It is worth noting that both samples show two characteristic peaks at about 1350 and 1580 cm À1 , originating from carbon cloth substrate, representing the D band and G band of carbon, respectively.…”

Section: Resultsmentioning

confidence: 84%

Facile hydrothermal synthesis of cobaltosic sulfide nanorods for high performance supercapacitors

et al. 2022

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Section: Resultsmentioning

confidence: 84%

Facile hydrothermal synthesis of cobaltosic sulfide nanorods for high performance supercapacitors

et al. 2022

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“…These peaks can fully correspond to the standard spectrum of cubic NiS 2 (PDF # 11–0099). , In addition, the peak at 31.6° corresponds to the (200) crystal plane of NiS 2 , which is also observed in HRTEM images. As shown in Figure S5e,f, diffraction peaks at 30.6 and 46.8° correspond to cubic Co 4 S 3 (PDF # 02–1458), − but the intensity of these peaks is weak due to the low content of Co 4 S 3 in the material. As shown in Figure S5d–f, the diffraction peaks at 27.5, 31.6, 45.4, and 53.5° correspond to hexagonal MnS (PDF # 40–1288). − No other impurity peak was detected in the XRD spectrum, indicating that the purity of the sample was very high.…”

Section: Results and Discussionmentioning

confidence: 99%

Ni–Co–Mn Trimetallic Nanoparticles as Hierarchical Electrocatalysts for Highly Efficient Urea Oxidation via Spatial Decoupling

Hu,

Song,

Wang

et al. 2023

ACS Appl. Nano Mater.

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Urea electrooxidation (UOR) is one of the most efficient technologies for the conversion of chemical energy to hydrogen or electric energy. Nickel-based catalysts can impetuate UOR but result in urea peroxidation. Seeking a balance between reaction selectivity and reaction kinetics, that is, trading off energy utilization efficiency against the energy conversion rate, is a necessary choice for designing UOR catalysts. Therefore, we designed Co, Mn codoped NiS 2 trimetallic nanoparticles at the expense of partial UOR selectivity. The optimal catalyst shows a high urea electrooxidation activity of 77 mA cm −2 at 1.5 V (vs RHE) and good stability. A series of electrochemical experiments combined with in situ electrochemical mass spectrometry and XPS unveiled the effect of each metal sites clearly. The doped Mn is beneficial to oxidizing the adjacent urea molecules, which modulate the UOR pathway and initiate urea peroxidation. Besides, the electron exchange between Co−Ni accelerates the urea oxidation of Ni and accelerates the oxidation of CO. The combination of the three improves the UOR catalytic performance of the material. Our work paves the way for the rational design and synthesis of highly efficient nanocatalysts to achieve industrial energy conversion and economic hydrogen production.

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“…1e). From previous studies, it is generally believed that the carbon shell promote the electron transfer and maintain the structural stability of the active material, expected to boost cycling and rate performances [52][53][54].…”

Section: Resultsmentioning

confidence: 99%

Eco-synthesized bimetallic sulfide nanoparticles within coral-like N,S-doped carbon scaffolds for lithium-/sodium-ion anode nanomaterials

et al. 2021

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Long-cycling of anode nanomaterials is crucial for promoting lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) towards the further practical applications. Anode nanomaterials, such as transition-metal sulfides (TMSs), are conventionally prepared via sulfuration with additional conventional sulfur sources. Herein, we prepare bimetallic sulfide (Co 0.83 Fe 0.17 ) 9 S 8 nanoparticles confined within coral-like N,S co-doped carbon scaffolds ((Co 0.83 Fe 0.17 ) 9 S 8 /N,S-C) as anode nanomaterials for LIBs and SIBs, without introducing additional sulfur source. The (Co 0.83 Fe 0.17 ) 9 S 8 /N,S-C composite is eco-synthesized by direct pyrolysis of a mixture of metanilic acid intercalated CoFe-LDH and acid yellow 49 (AY49), thus endowed with the integrated advantageous features: bimetallic (Co 0.83 Fe 0.17 ) 9 S 8 , N,S co-doped carbon scaffold (14.2 wt%), the appropriate specific surface area and mesoporous structure. The electrochemical testing demonstrates that the composite exhibits a reversible capacity of 948.8 mAh g -1 after 80 cycles at 0.1 A g -1 for LIBs, and a decent reversible capacity of 392.9 mAh g -1 after 50 cycles at 0.1 A g -1 for SIBs, which are both superior to those of the Co 9 S 8 /N,S-C counterpart. The enhancement is supported by the result of low charge resistance determined by electrochemical impedance spectroscopy. Our results may provide an eco-efficient synthetic method for the preparation of TMSs for energy storage.

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MOF-derived hollow Co₄S₃/C nanosheet arrays grown on carbon cloth as the anode for high-performance Li-ion batteries

Abstract: Cobalt sulfide (Co4S3) is considered as one of the most promising anode materials for lithium-ion battery owing to its high specific capacity. However, some disadvantages, such as poor electrical conductivity...

Cited by 22 publications

References 50 publications

Facile hydrothermal synthesis of cobaltosic sulfide nanorods for high performance supercapacitors

Facile hydrothermal synthesis of cobaltosic sulfide nanorods for high performance supercapacitors

Ni–Co–Mn Trimetallic Nanoparticles as Hierarchical Electrocatalysts for Highly Efficient Urea Oxidation via Spatial Decoupling

Eco-synthesized bimetallic sulfide nanoparticles within coral-like N,S-doped carbon scaffolds for lithium-/sodium-ion anode nanomaterials

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MOF-derived hollow Co4S3/C nanosheet arrays grown on carbon cloth as the anode for high-performance Li-ion batteries

Abstract: Cobalt sulfide (Co4S3) is considered as one of the most promising anode materials for lithium-ion battery owing to its high specific capacity. However, some disadvantages, such as poor electrical conductivity...

Cited by 22 publications

References 50 publications

Facile hydrothermal synthesis of cobaltosic sulfide nanorods for high performance supercapacitors

Facile hydrothermal synthesis of cobaltosic sulfide nanorods for high performance supercapacitors

Ni–Co–Mn Trimetallic Nanoparticles as Hierarchical Electrocatalysts for Highly Efficient Urea Oxidation via Spatial Decoupling

Eco-synthesized bimetallic sulfide nanoparticles within coral-like N,S-doped carbon scaffolds for lithium-/sodium-ion anode nanomaterials

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Product

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MOF-derived hollow Co₄S₃/C nanosheet arrays grown on carbon cloth as the anode for high-performance Li-ion batteries