Synthesis of porous ZnxCo3-xO4 hollow nanoboxes derived from metal-organic frameworks for lithium and sodium storage

Wang, Mingyue; Zhang, Shuai; Zhu, Yade; Zhang, Na; Zhang, Jiaxin; Qin, Xiulan; Zhang, Hongming

doi:10.1016/j.electacta.2020.135694

Cited by 26 publications

(24 citation statements)

References 58 publications

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“…The synergy of multiple metal oxides may bring additional advantages (e.g., a higher electrical conductivity) to boost the battery performance. [ 254 ] In a study, Zn‐ZIF‐67 and Ni‐ZIF‐67 have been prepared as precursors from post‐metal‐ion exchangewith ZIF‐67, which are then annealed to yield the corresponding Zn‐ and Ni‐doped Co 3 O 4 . [ 255 ] Both bimetallic oxides (Zn–Co–oxide and Ni–Co–oxide) exhibit considerably higher capacity than that for pristine Co 3 O 4 as LIB anodes (≈1300 vs ≈1100 mAh g −1 @ 1 A g −1 ).…”

Section: Applications For Metal‐ion Batteriesmentioning

confidence: 99%

Porosity Engineering of MOF‐Based Materials for Electrochemical Energy Storage

Yang

et al. 2021

Advanced Energy Materials

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energy storage (EES)-primarily supercapacitors and metal-ion batteries (MIBs, e.g., lithium-ion batteries (LIBs), sodiumion batteries (SIBs), and potassium-ion batteries (PIBs)).Both supercapacitors and batteries typically consist of current collectors, electrodes, electrolyte, and a separator. By applying a suitable potential between current collectors, the charge/discharge process takes place mediated by the electrode materials, and the electrolyte ions (i.e., the charge carriers) are accordingly driven to travel across the separator so as to connect the circuit. In recent years, solidstate electrolytes (SSEs) are also under popular development to enhance cell voltage (energy density) and safety of the devices. [1] Upon charging, electrical energy is converted to electrostatic potential for supercapacitors and to chemical energy for batteries, and vice versa. Therefore, each device has pros and cons. Supercapacitors usually provide a high power density (i.e., a fast charge/ discharge velocity) due to the fast physical charge-discharge process across the interfaces between electrode materials and the electrolyte solutions, while the energy density is usually small (≈5 Wh kg −1 ). In comparison, batteries often offer a large energy density (i.e., a large specific energy capacity of ≈200 Wh kg −1 ) attributed to the chemical redox reactions which take place throughout the whole volume of electrode materials, while the operation rate is relatively slow. [2] To construct desirable energy storage devices, porous materials have been widely adopted, particularly for electrodes and SSEs. These materials typically feature a large fraction of interconnected or reticulated porosity with a high specific surface area (SSA), offering numerous potential active sites and mass transfer channels. For example, porous materials based on nanocarbons (e.g., carbon nanotubes, graphene), conducting polymers, and conjugated microporous polymers with high electrical conductivity and large SSAs have been frequently adopted for supercapacitors, [3] while porous carbons, MoS 2 , and metal oxides have been used for LIBs because of the theoretically large stoichiometric lithium content in the respectively lithiated compound and an accelerated Li diffusion rate inside the pores. [4][5][6] Despite considerable progress made so far, these porous materials fall short of sufficiently large SSAs and readily tunable pores, which constrain the upper limit for the performance optimization and affect an accurate investigation of the structure-performance relationship.Metal-organic frameworks (MOFs) feature rich chemistry, ordered micro-/ mesoporous structure and uniformly distributed active sites, offering great scope for electrochemical energy storage (EES) applications. Given the particular importance of porosity for charge transport and catalysis, a critical assessment of its design, formation, and engineering is needed for the development and optimization of EES devices. Such efforts can be realized via the design of reticular chemistry, multiscale...

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Section: Applications For Metal‐ion Batteriesmentioning

confidence: 99%

Porosity Engineering of MOF‐Based Materials for Electrochemical Energy Storage

Yang

et al. 2021

Advanced Energy Materials

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“…On the other hand, the morphology of the Co 3 O 4 and ZnO indicates flake-like structure (Figure 2M-P,S-V). The HRTEM images (Figure 2E,K Figure 3A shows the powder XRD diffraction patterns of the Zn 19,32 The Zn 2+ atoms were successfully incorporated into the lattice of Co 3 O 4 . 32 Furthermore, no additional diffraction peak appeared irrespective of the alteration in the Zn/Co ratio, indicating the phase purity of two spinel structures.…”

Section: Resultsmentioning

confidence: 99%

“…6,17,18 The mixed bimetal oxides can achieve better electrochemical performances than single metal oxides due to the synergic effect of two metal species. 12,19 In particular, binary spinel-type materials are very attractive as battery-type electrode owing to their high theoretical capacitance, eco-friendliness, strong redox activity, abundant resources and low cost. [19][20][21] Thus, nanostructuring the binary spinel metal oxides is a viable route to improve the electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

“…12,19 In particular, binary spinel-type materials are very attractive as battery-type electrode owing to their high theoretical capacitance, eco-friendliness, strong redox activity, abundant resources and low cost. [19][20][21] Thus, nanostructuring the binary spinel metal oxides is a viable route to improve the electrochemical performance. For instance, the nanostructured ZnCo 2 O 4 such as coral-like nanowires, peony-like structure, hierarchical microspheres and cubic-like structure showed the higher specific capacitances compared to bulk counterparts.…”

Section: Introductionmentioning

confidence: 99%

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3D flower‐like oxygen‐deficient non‐stoichiometry zinc cobaltite for high performance hybrid supercapacitors

et al. 2021

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Non-stoichiometry and defect engineering of nanostructured materials plays a vital role in controlling the electronic structure, which results in enhancing the electrochemical performances. Herein, we report three-dimensional (3D) oxygen-deficient flower-like non-stoichiometry zinc cobaltite (Zn 1.5 Co 1.5 O 4−δ ) for hybrid supercapacitor applications. In particular, XRD, XPS and Raman analyses confirm the oxygen-deficiency of the nonstoichiometry Zn 1.5 Co 1.5 O 4−δ . The oxygen-deficient non-stoichiometry and 3D hierarchical porous structure of Zn 1.5 Co 1.5 O 4−δ offer the efficient utilization of abundant electrochemical active sites and the rapid transportation of ion/electron. Accordingly, the Zn 1.5 Co 1.5 O 4−δ electrode achieves the high specific capacitance of 763.32 F g −1 at 1 A g −1 , which is superior to those of ZnCo 2 O 4 (613.14 F g − 1), Co 3 O 4 (353.88 F g −1 ) and ZnO (248.59 F g −1 ). The hybrid supercapacitor cells, configuring Zn 1.5 Co 1.5 O 4−δ as the positive electrode and activated carbon as negative electrodes, respectively, deliver the maximum energy/power densities (40.49 W h kg −1 at 397.37 W kg −1 and 20.87 W h kg −1 at 50.08 kW kg −1 ) and outstanding cycle stability with capacitance retention of 89.42% over 20 000 cycles.

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“…Variety of MOFs materials reported in energy storage application primarily as electrode materials in supercapacitors and lithium-ion battery classified into two main classes: pristine-MOFs and MOFs derivatives. The pristine-MOFs [38][39][40] are materials that directly used after the synthesis process, meanwhile, MOFs derivatives [41] undergoes some thermal process to convert the pristine-MOFs into either metal oxides [42,43] (usually undergoes the thermal treatment in oxygen-rich atmosphere), carbons [44,45] (also usually undergoes the thermal treatment in the oxygen-rich and proceed with an etching process to eliminate the metal centers) and composite [46,47] that consists of both classes (metal oxides embedded in carbon matrices after thermal treatment in inert condition). Eventhough the utilization of pristine MOFs as a candidate for anode LIBs evoke skeptical opinion as the material owing poor electronic conductivity and stability, however, an explosive number of publications on pristine MOFs in electrochemical energy storage proved it otherwise [48][49][50].…”

Section: Introductionmentioning

confidence: 99%

High Capacity and Rate Capability Binder‐less Ternary Transition Metal‐organic Framework as Anode Material for Lithium‐ion Battery

et al. 2020

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A novel metal-organic framework (MOF) composition containing three cations (CoCuNiÀ MOF) grown directly on nickel foam substrate has been evaluated for its use as an anode material for lithium ion batteries (LIB) and benchmarked the performance with its single cation MOF counterparts. Equimolar concentrations of cobalt, copper, and nickel and 1,4-benzenedicarboxylic acid are used as metal centers and organic linker, respectively, for synthesis of CoCuNiÀ MOF. The morphology, chemical structure, and electrochemical properties of the materials are studied and analyzed for their suitability for lithium ion storage. The cyclability performance of CoCuNiÀ MOF exhibit good behavior with retaining~490 (� 3) and~396 (� 3) mA•h•g À 1 at 200 and~500 mA•g À 1 , respectively. During rate capability evaluation, CoCuNiÀ MOF proved to be the best material compared to its single component MOF: CoCuNiÀ MOF retained an average capacity of~565 (� 3) mA•h•g À 1 at current density as high as 1000 mA•g À 1. The positive attributes of CoCuNiÀ MOF are shown to arise from the synergistic effect of the three transition metals. The output from this work is expected to provide useful insight into the design of new MOFs electrode for LIBs with high specific capacity and improved cycle stability.

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Synthesis of porous ZnxCo3-xO4 hollow nanoboxes derived from metal-organic frameworks for lithium and sodium storage

Cited by 26 publications

References 58 publications

Porosity Engineering of MOF‐Based Materials for Electrochemical Energy Storage

Porosity Engineering of MOF‐Based Materials for Electrochemical Energy Storage

3D flower‐like oxygen‐deficient non‐stoichiometry zinc cobaltite for high performance hybrid supercapacitors

High Capacity and Rate Capability Binder‐less Ternary Transition Metal‐organic Framework as Anode Material for Lithium‐ion Battery

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