Dual oxidation and sulfurization enabling hybrid Co/Co3O4@CoS in S/N-doped carbon matrix for bifunctional oxygen electrocatalysis and rechargeable Zn-air batteries

Pan, Haoran; Huang, Xinning; Lu, Zhenjie; Zhang, Zhiqiang; An, Baigang; Wu, Dongling; Wang, Tao; Chen, Xing‐Xing; Cheng, Fangyi

doi:10.1016/j.cej.2021.129619

Cited by 86 publications

(32 citation statements)

References 77 publications

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“…In addition, the existence of Co, C, and S elements can be observed in the elemental mappings of as-prepared CoS/C sample shown in Figure 2D, demonstrating that all these elements are uniformly distributed in the hollow CoS/C sample.The TEM image in Figure3Afurther reveals that the ZIFderived CoS/C sample is a hollow hexagonal structure. Moreover, from the HR-TEM as shown in Figure3B, the lattice fringes of 0.168 and 0.254 nm can be assigned to the (110) and (101) plane of CoS, respectively(Peng et al, 2016;Pan et al, 2021). The HR-TEM results further confirmed the existence of CoS in the hollow hexagonal framework.…”

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confidence: 60%

“…The TEM image in Figure 3A further reveals that the ZIF-derived CoS/C sample is a hollow hexagonal structure. Moreover, from the HR-TEM as shown in Figure 3B , the lattice fringes of 0.168 and 0.254 nm can be assigned to the (110) and (101) plane of CoS, respectively ( Peng et al, 2016 ; Pan et al, 2021 ). The HR-TEM results further confirmed the existence of CoS in the hollow hexagonal framework.…”

Section: Resultsmentioning

confidence: 99%

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Hollow CoS/C Structures for High-Performance Li, Na, K Ion Batteries

Liu¹,

Li²,

Zhang³

et al. 2022

Front. Chem.

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Alkali ion (Li, Na, and K) batteries as a new generation of energy storage devices are widely applied in portable electronic devices and large-scale energy storage equipment. The recent focus has been devoted to develop universal anodes for these alkali ion batteries with superior performance. Transition metal sulfides can accommodate alkaline ions with large radius to travel freely between layers due to its large interlayer spacing. Moreover, the composite with carbon material can further improve electrical conductivity of transition metal sulfides and reduce the electron transfer resistance, which is beneficial for the transport of alkali ions. Herein, we designed zeolitic imidazolate framework (ZIF)–derived hollow structures CoS/C for excellent alkali ion (Li, Na, and K) battery anodes. The porous carbon framework can improve the conductivity and effectively buffer the stress-induced structural damage. The ZIF-derived CoS/C anodes maintain a reversible capacity of 648.9, and 373.2, 224.8 mAh g−1 for Li, Na, and K ion batteries after 100 cycles, respectively. Its outstanding electrochemical performance is considered as a universal anode material for Li, Na, and K ion batteries.

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mentioning

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Hollow CoS/C Structures for High-Performance Li, Na, K Ion Batteries

Liu¹,

Li²,

Zhang³

et al. 2022

Front. Chem.

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“…[5,11] In addition to this, the deformation of the aromatic graphite domains leads to the appearance of 2D and (D + G) bands. [46] The intensity ratio of 2D to D + G-band (I 2D /I D + G ) has the same trend as I D /I G , indicating that the aromatic graphite domain has stronger distortion after POM recombination.…”

Section: Chemistryselectmentioning

confidence: 86%

Highiy Efficient Water Splitting with Polyoxometalate Coated on Deliberately Designed Porous Carbon as a Bifunctional Electrocatalyst

Liu

Zong

et al. 2022

ChemistrySelect

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Rational design of efficient, sustainable and low-cost hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) bifunctional catalysts within the scope of feasibility is of great significance for realizing rapid output water splitting. Here, we used a simple coprecipitation method to prepare Keggin-type polyoxometalate (POM) nanoscale particles coated with coreshell-type metal-organic framework (MOF) derived Co-NC (Co-NC-POM). Thanks to synergy effect, abundant active sites, unique structure and defects, the as-synthesized Co-NC-POM hybrids exhibit excellent eletrocatalytic performance both for HER and OER. Moreover, it can act as bifunctional electrocatalysts for overall water splitting, exhibiting a low voltage of 1.60 V and an excellently stability up to 24 h at a current density of 10 mA cm À 2 . It shows competitive performance against the same type of advanced bifunctional catalysts currently reported and thus is expected to among the most efficient non-precious metal catalysts to drive the water splitting device.

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“…Additionally, as shown in Figure 5e, f, the specific capacity of mC-CoSx-50 normalized by the mass of consumed Zn anode is calculated to be 776 mA h g À 1 (corresponding to a high energy density of ~911 W h kg À 1 ), outperforming that of the reference Zn-air batteries-based on Pt/C + RuO 2 catalyst (756 mA h g À 1 ), indicating that Zn plate was utilized more effectively by the Zn-air battery with mC-CoSx-50. Co 9 S 8 @TDC 247 0.78 1.56 0.78 [19] Co/S/N-800 178 0.83 1.59 0.76 [29] Co/Co 3 O 4 @CoS-SNC 250 0.87 1.6 0.73 [30] Co/CoxSy@SNCF-800 212 0.76 1.59 0.83 [31] Figure 5g shows the discharge curves at series of current densities. Specifically, the mC-CoSx-50 cathode successfully renders the Zn-air batteries with higher output voltages, i. e., 1.29, 1.27, 1.23, and 1.17 V at current densities of 5, 10, 25, and 50 mA cm À 2 , respectively, proving the outstanding performance originated from the mC-CoSx-50 electrocatalyst.…”

Section: Chemcatchemmentioning

confidence: 99%

Flower‐like Mesoporous Carbon with Cobalt Sulfide Nanocrystalline as Efficient Bifunctional Electrocatalysts for Zn‐Air Batteries

Zhou

Fan

et al. 2022

ChemCatChem

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Transition‐metal sulfides have gained considerable attention for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in rechargeable Zn‐air batteries owing to their natural abundance, chemical stability, and efficient activity. Here, cobalt sulfide nanocrystalline supported on the 3D hierarchically flower‐like porous nanocarbon (mC‐CoSx‐50) electrocatalysts have been synthesized through a combination of metal‐organic complexation and porous silica templates for efficient bifunctional oxygen catalysis. With the high specific surface area, high nitrogen content and heteroatom doping, the as‐synthesized mC‐CoSx‐50 exhibits an excellent bifunctional oxygen catalytic performance. Remarkably, the rechargeable Zn‐air batteries assembled with the cobalt sulfide‐based hierarchically porous electrocatalysts reveal a high peak power density and excellent cycling stability in comparison with Pt/C+RuO2 owing to the synergistic effects between cobalt sulfide nanocrystallines and hierarchically porous carbon. We envision that this work not only offers high‐performance metal sulfide for future clean energy conversion but also provides a facial strategy for constructing hierarchically porous carbon‐supported catalyst.

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Dual oxidation and sulfurization enabling hybrid Co/Co3O4@CoS in S/N-doped carbon matrix for bifunctional oxygen electrocatalysis and rechargeable Zn-air batteries

Cited by 86 publications

References 77 publications

Hollow CoS/C Structures for High-Performance Li, Na, K Ion Batteries

Hollow CoS/C Structures for High-Performance Li, Na, K Ion Batteries

Highiy Efficient Water Splitting with Polyoxometalate Coated on Deliberately Designed Porous Carbon as a Bifunctional Electrocatalyst

Flower‐like Mesoporous Carbon with Cobalt Sulfide Nanocrystalline as Efficient Bifunctional Electrocatalysts for Zn‐Air Batteries

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