MOF derived ZnSe–FeSe2/RGO Nanocomposites with enhanced sodium/potassium storage

Yuan, Jüjun; Liu, Wen; Zhang, Xianke; Zhang, Yaohui; Yang, Wentao; Liu, Weidong; Li, Xiaokang; Zhang, Jiujun; Li, Xifei

doi:10.1016/j.jpowsour.2020.227937

Cited by 122 publications

(40 citation statements)

References 29 publications

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“…Even after 1500 cycles ( Figure S11, Supporting Information), specific capacity of 71.4 mAh g −1 can still be retained, indicating that the electrode material has excellent cycling stability. Compared with previously reported zinc-based metal chalcogenide as anode for PIBs, [22,24,26,57] the present ZnSe@NC electrode exhibits competitive electrochemical performance in terms of the cycle life. Figure 5e-h shows the electrochemical kinetics of potassium storage in ZnSe@NC.…”

Section: Figure 3amentioning

confidence: 60%

“…In the meantime, the formation of a SEI causes an initial irreversible capacity loss. [57] For the initial anodic sweep, a broad peak between 0.50 and 2.0 V can correspond to reconstruction of ZnSe. [17,26] Figure 5a displays the galvanostatic charge-discharge voltage profiles of ZnSe@NC anode for the 1st, 2nd, 3rd, 4th, and 5th cycles at 50 mA g −1 .…”

Section: Figure 3amentioning

confidence: 99%

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Willow‐Leaf‐Like ZnSe@N‐Doped Carbon Nanoarchitecture as a Stable and High‐Performance Anode Material for Sodium‐Ion and Potassium‐Ion Batteries

Dong

et al. 2020

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cycling life and environmental benignity. However, the scarce (0.0017% in weight) and uneven distribution of lithium in the earth's crust limits the sustainable development of LIBs. [1-4] Therefore, it is necessary to explore alternative energystorage systems with the sufficient resource. Sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs) have the notable advantages due to the abundance of sodium (2.36 wt%) and potassium (2.09 wt%) in the earth's crust. [5-7] Meanwhile, SIBs and PIBs have similar electrochemical principles with that of LIBs. [8-10] Therefore, SIBs and PIBs have recently received considerable attention as the next-generation promising energy storage systems. However, the radii of Na + (1.02 Å) and K + (1.37 Å) are larger than that of Li + (0.76 Å), which can easily cause serious structure damage and sluggish kinetics of electrode material during the repeated Na + /K + intercalation/extraction processes. [11-13] The common anode materials (graphite, metal oxides) for LIBs suffer from low capacity for SIBs and PIBs. [14,15] Thus, it is desirable to fabricate the suitable electrode materials to alleviate the huge volume expansion during the charge/discharge processes. Recently, transition-metal selenides (TMDs, M = Co, Zn, Fe, V, Mo) have attracted significant attention as promising anode materials for SIBs and PIBs owing to their high theoretical capacity, low cost, and fascinating physicochemical properties. [16-20] Among them, zinc selenide (ZnSe) combining the conversion and alloying reactions is considered as a promising anode material owing to its high theoretical specific capacity, suitable discharge/charge platform, and low toxicity. [21,22] Nevertheless, as similar as other TMDs, the performance of ZnSe still suffers from low intrinsic conductivity and dramatic volume variation during the charge-discharge processes, which eventually result in poor cycling stability and rate performance, although obvious progresses have been made up to date. [23,24] To overcome these issues, some promising strategies have been explored to enhance the electrochemical performance. On one hand, incorporation of ZnSe within carbon matrix could improve the electronic conductivity and alleviate huge volume expansion. For example, ZnSe-reduced graphene oxide has been fabricated via a ZnSe is regarded as a promising anode material for energy storage due to its high theoretical capacity and environment friendliness. Nevertheless, it is still a significant challenge to obtain superior electrode materials with stable performance owing to the serious volume change and aggregation upon cycling. Herein, a willow-leaf-like nitrogen-doped carbon-coated ZnSe (ZnSe@NC) composite synthesized through facile solvothermal and subsequent selenization process is beneficial to expose more active sites and facilitate the fast electron/ion transmission. These merits significantly enhance the electrochemical performances of ZnSe@NC for sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs). The obtained ZnSe@NC exhib...

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Section: Figure 3amentioning

confidence: 60%

Section: Figure 3amentioning

confidence: 99%

Willow‐Leaf‐Like ZnSe@N‐Doped Carbon Nanoarchitecture as a Stable and High‐Performance Anode Material for Sodium‐Ion and Potassium‐Ion Batteries

Dong

et al. 2020

Small

137

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“…The weight loss between 215 and 330 °C (13.1%) is due to the partial decomposition of the MOF-5 frameworks. The weight loss between 330 and 524 °C (41.79%) is due to the collapse of the framework 52 of MOF-5 and constant up to 600 °C.…”

Section: Resultsmentioning

confidence: 99%

Sustainable Synthesis of MOF-5@GO Nanocomposites for Efficient Removal of Rhodamine B from Water

Kumar

Masram

2021

ACS Omega

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Herein, a metal–organic framework (MOF-5) is synthesized by a solvothermal process and graphene oxide (GO) is prepared from the improved Hummer’s method. The synthesis of MOF-5@GO nanocomposites is one-pot process via a grinding method and employed for the removal of Rhodamine B (RhB) dye. The removal efficiency of RhB is found to be 60.64% (151.62 mg·g –1 ) at 500 ppm. About 98.88% of RhB is removed within 5 min of contact time and increased up to 99.68% up to 10 min. The removal rate of MOF-5@GO nanocomposites is much better than that of pristine MOF-5. Equilibrium adsorption capacity is determined by a series of different experimental conditions such as pH, time, and concentration of dye solution. Although the results also showed that dye removal on MOF-5@GO nanocomposites is well described by the Langmuir isotherm ( R 2 = 0.9703), the adsorption kinetics data reveals pseudo-second-order ( R 2 = 0.9908). The synthesized nanocomposite is efficient for removal of dye, cost-effective, and reusable. Additionally, stability and self-degradation studies of pure RhB are reported in aqueous solution for up to 120 days at different pH values (pH 1–12).

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“…At present, how to use these renewable energy sources to achieve high-efficiency, low-energy consumption, and environmentally friendly production capacity or minimize the generation of pollutants has not been achieved. This is attributed to the fact that how to provide catalysts for high catalytic activity, high stability, and sustainable use has not been sufficiently explored [12]. Therefore, to achieve the optimal use of energy and effective management of pollution is the research hotspot of the current society [13].…”

Section: Research Background and Significance Of Nanomaterialsmentioning

confidence: 99%

“…The activity can also use the coupling effect with graphene and other materials to further strengthen the stability of the structure and improve the recycling of metal nanomaterials. (3) MOFs and other materials: The high porosity and huge specific surface area of the MOFs provide space for various catalytically active substances, for instance metal oxide clusters and metal groups [ 12 , 33 ]. The use of ligands and metal charge transfer or excitation of metal active sites promotes charge transport.…”

Section: Classification Of Nanomaterials Catalysts In Watermentioning

confidence: 99%

Oxygen Reduction Reaction in the Field of Water Environment for Application of Nanomaterials

Xie

Alhassan

et al. 2020

Nanomaterials

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Water pollution has caused the ecosystem to be in a state of imbalance for a long time. It has become a major global ecological and environmental problem today. Solving the potential hidden dangers of pollutants and avoiding unauthorized access to resources has become the necessary condition and important task to ensure the sustainable development of human society. To solve such problems, this review summarizes the research progress of nanomaterials in the field of water aimed at the treatment of water pollution and the development and utilization of new energy. The paper also tries to seek scientific solutions to environmental degradation and to create better living environmental conditions from previously published cutting edge research. The main content in this review article includes four parts: advanced oxidation, catalytic adsorption, hydrogen, and oxygen production. Among a host of other things, this paper also summarizes the various ways by which composite nanomaterials have been combined for enhancing catalytic efficiency, reducing energy consumption, recycling, and ability to expand their scope of application. Hence, this paper provides a clear roadmap on the status, success, problems, and the way forward for future studies.

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MOF derived ZnSe–FeSe2/RGO Nanocomposites with enhanced sodium/potassium storage

Cited by 122 publications

References 29 publications

Willow‐Leaf‐Like ZnSe@N‐Doped Carbon Nanoarchitecture as a Stable and High‐Performance Anode Material for Sodium‐Ion and Potassium‐Ion Batteries

Willow‐Leaf‐Like ZnSe@N‐Doped Carbon Nanoarchitecture as a Stable and High‐Performance Anode Material for Sodium‐Ion and Potassium‐Ion Batteries

Sustainable Synthesis of MOF-5@GO Nanocomposites for Efficient Removal of Rhodamine B from Water

Oxygen Reduction Reaction in the Field of Water Environment for Application of Nanomaterials

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