MOF derived ZnCo<sub>2</sub>O<sub>4</sub> porous hollow spheres functionalized with Ag nanoparticles for a long-cycle and high-capacity lithium ion battery anode

Koo, Won‐Tae; Jang, Hyung Wook; Kim, Chanhoon; Jung, Ji‐Won; Cheong, Jun Young; Kim, Il‐Doo

doi:10.1039/c7ta07573a

Cited by 73 publications

(33 citation statements)

References 58 publications

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“…[23] Fu et al showed that an ovel porous spherical ZnO@carbon nanocomposite obtained throughp yrolyzing the corresponding ZnO@ZIF-8 could get ah igh surface area and stable cycling performance. [28] Multi-metal oxidesh ave been reported as anode materials for LIBsi nm any previous literatures, such as FeTiO 3 , [29] ZnCo 2 O 4 , [30,31] ZnFe 2 O 4 , [32] etc. They are attractive due to their high specific capacities andt he synergetice ffects between the two conversion metal elements during the discharge/charge process.…”

Section: Introductionmentioning

confidence: 95%

Dramatically Enhanced Li‐Ion Storage of ZnO@C Anodes through TiO₂ Homogeneous Hybridization

Liu

et al. 2018

Chemistry A European J

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Amorphousnanoparticles of ZnO and TiO 2 embedded in carbon nanocages (AZT&CNCs)w ere successfullys ynthesizedt hrough as imple annealing process of TiO 2 -coated zeolitic imidazolate framework-8 (ZIF-8). In the current anode of AZT&CNCs, tiny ZnO and TiO 2 nanoparticlesw ere uniformly distributed in the carbon matrix (carbon nanocages), which could effectively buffer the volumee xpansion of electroactive ZnO and provide excellent electric conductivity. After fully investigatingt he electrochemical performance of the AZT&CNCs samples obtained with different additive amountso ft etrabutylo rthotitanate (TBOT) for TiO 2 coating, it hasb een found that AZT-30 (0.1 gZ IF-8 with 30 mL TBOT) showst he best cycle stability( 510 mA hg À1 after 350 cycles at 200 mA g À1 )a nd as uperior rate capability (610 mA hg À1 after 3500 cycles at 2Ag À1 ). The greatlye nhancedL i-ion storagep erformance could be ascribed to the fact that the introduction of amorphous TiO 2 could activate the reversible lithiation/delithiation reactiono fZ nO during the charge/dischargep rocess.Supporting information (containings upplementary TEM imageso fZIF-8 and ZIF-8@TiO 2 and the correspondingE FTEM elemental mappingi mages of ZIF-8@TiO 2 ,XRD patternso fA ZT-0, AZT-30, and AZT-60 after calcination in air,EDS patterns of AZT-30 and AZT-60, BET data of AZT-30, CV and discharge-charge curves of AZT-0a nd AZT-60 at 200 mA g À1 ,dischargechargecurveso fA ZT-0, AZT-30, and AZT-60 at 2Ag À1 ,aS EM imageo fA ZT-30 after5 0c harging/discharging cycles, EISofA ZT-0, AZT-30 and AZT-60) and the ORCIDi dentification number(s) for the author(s) of this article can be found under:https://doi.

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Section: Introductionmentioning

confidence: 95%

Dramatically Enhanced Li‐Ion Storage of ZnO@C Anodes through TiO₂ Homogeneous Hybridization

Liu

et al. 2018

Chemistry A European J

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“…Among them, ZnCo 2 O 4 combines the better anodic performance of cobalt-based oxides and the lower cost/toxicity of Zn. What is more, compared with other ACo 2 O 4 (where A = Ni, Fe, Cu, and Mg), ZnCo 2 O 4 has higher theoretical specific capacity as not only can Zn–O and Co–O host lithium ions through conversion reaction, but the alloy of Zn–Li also forms during electrochemical reactions [ 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. Based on these considerations, many ZnCo 2 O 4 -based materials with different nanostructures have been synthesized and studied as the anode materials for lithium ion batteries, for example, ZnCo 2 O 4 hollow nanobarrels [ 17 ], ZnCo 2 O 4 nanoclusters [ 18 ], ultrathin ZnCo 2 O 4 nanosheets [ 14 ], and so on.…”

Section: Introductionmentioning

confidence: 99%

“…Based on these considerations, many ZnCo 2 O 4 -based materials with different nanostructures have been synthesized and studied as the anode materials for lithium ion batteries, for example, ZnCo 2 O 4 hollow nanobarrels [ 17 ], ZnCo 2 O 4 nanoclusters [ 18 ], ultrathin ZnCo 2 O 4 nanosheets [ 14 ], and so on. By constructing these different structures, the volume change during cycling can be greatly restrained; the pathway for electron and Li + diffusion can be decreased; and, thus, both rate and cycling performance can be greatly enhanced compared with the bulk materials [ 11 , 13 , 15 , 16 , 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Porous ZnCo2O4 Nanosheets and the Superior Electrochemical Properties for Sodium Ion Batteries

Cao

Yang

2018

Nanomaterials

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ZnCo2O4 nanosheets with large surface area and mesoporous structure were synthesized using a facile hydrothermal method followed with a calcination process. When applied as the anode material in sodium ion batteries, the ZnCo2O4 nanosheets demonstrated a high initial charge capacity of 415.1 mAh/g at the current density of 100 mA/g. Even though the reversible capacity decreased in the first 20 cycles, it stayed relatively stable afterwards and retained 330 mAh/g after 100 cycles. This result was superior to those of many reported works of ZnO- and Co3O4-based anodes for sodium ion batteries, which might be due to the synergistic effect of both Zn and Co, and the refined porous nanosheet-like structure which facilitates electrochemical reactions by providing more reaction sites and ensures cycling stability by providing more space to accommodate the structural strains during cycles.

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“…have been emerged as the advanced anode materials due to their rich redox chemistry and high theoretical capacity, as compared with the state-ofthe-art graphite. [19][20][21] In particular, cobalt sulfides (CoS) is one of the most prospective anode materials for LIBs. Nevertheless, cobalt-based sulfides suffer from the poor intrinsic conductivity, which limits their rate capability.…”

Section: Introductionmentioning

confidence: 99%

Constructing Hollow Ni_0.2Co_0.8S@rGO Composites at Low Temperature Conditions as Anode Material for Lithium‐Ion batteries

Yang

Wang

et al. 2019

ChemElectroChem

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Due to their high theoretical capacities, metal sulfides have been considered as promising electrode materials for lithium‐ion batteries (LIBs). Heavy‐duty applications of metal sulfides for LIBs, however, are still restricted by the unavoidable volume change, resulting in poor rate capability and cycling stability. In this work, a Ni−Co‐ZIF derived Ni0.2Co0.8S hollow nanocage@reduced graphene oxide (Ni0.2Co0.8S@rGO) composite was fabricated through facile self‐assembly followed by freeze‐drying. The highly porous architecture of Ni0.2Co0.8S hollow nanocages wrapped by flexible reduced graphene oxide (rGO) is shown to not only validly inhibit the huge volume expansion during repeated charge/discharge cycling, but also accelerate lithium‐ion and electron transport through the 3D rGO network. The as‐obtained Ni0.2Co0.8S@rGO exhibits excellent electrochemical performance with a high specific capacity of 1585 mA h g−1 after 250 cycles at a current density of 1 A g−1. It is shown that the increasing reversible capacity during cycling can be attributed to the electrochemical activation of porous Ni0.2Co0.8S‐2.5@rGO, the pseudocapacitive behavior, and the highly reversible formation/decomposition of the solid electrolyte interface layer during lithiation/de‐lithiation. The sulfidation and reduction syntheses were operated at a relative low temperature of 90 °C, which is beneficial to inherit the unique morphology of precursor.

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MOF derived ZnCo₂O₄ porous hollow spheres functionalized with Ag nanoparticles for a long-cycle and high-capacity lithium ion battery anode

Abstract: Ag nanoparticle-decorated ZnCo2O4 hollow spheres are synthesized by using MOF templates and an Ag-mirror reaction, for high-performance lithium-ion battery anode materials.

Cited by 73 publications

References 58 publications

Dramatically Enhanced Li‐Ion Storage of ZnO@C Anodes through TiO₂ Homogeneous Hybridization

Dramatically Enhanced Li‐Ion Storage of ZnO@C Anodes through TiO₂ Homogeneous Hybridization

Facile Synthesis of Porous ZnCo2O4 Nanosheets and the Superior Electrochemical Properties for Sodium Ion Batteries

Constructing Hollow Ni_0.2Co_0.8S@rGO Composites at Low Temperature Conditions as Anode Material for Lithium‐Ion batteries

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MOF derived ZnCo2O4 porous hollow spheres functionalized with Ag nanoparticles for a long-cycle and high-capacity lithium ion battery anode

Abstract: Ag nanoparticle-decorated ZnCo2O4 hollow spheres are synthesized by using MOF templates and an Ag-mirror reaction, for high-performance lithium-ion battery anode materials.

Cited by 73 publications

References 58 publications

Dramatically Enhanced Li‐Ion Storage of ZnO@C Anodes through TiO2 Homogeneous Hybridization

Dramatically Enhanced Li‐Ion Storage of ZnO@C Anodes through TiO2 Homogeneous Hybridization

Facile Synthesis of Porous ZnCo2O4 Nanosheets and the Superior Electrochemical Properties for Sodium Ion Batteries

Constructing Hollow Ni0.2Co0.8S@rGO Composites at Low Temperature Conditions as Anode Material for Lithium‐Ion batteries

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MOF derived ZnCo₂O₄ porous hollow spheres functionalized with Ag nanoparticles for a long-cycle and high-capacity lithium ion battery anode

Dramatically Enhanced Li‐Ion Storage of ZnO@C Anodes through TiO₂ Homogeneous Hybridization

Dramatically Enhanced Li‐Ion Storage of ZnO@C Anodes through TiO₂ Homogeneous Hybridization

Constructing Hollow Ni_0.2Co_0.8S@rGO Composites at Low Temperature Conditions as Anode Material for Lithium‐Ion batteries