Construction of hierarchical multilayered nanomaterials derived from Co-MOFs supported by pyromellitic acid for advanced lithium storage performance

Chen, Guohua; Wang, Liying; Liu, Yunfei; Miao, Xiangshui; Zhang, Yongfeng; Cao, Zhenzhu

doi:10.1039/d3nj02280c

New J. Chem.

2023

DOI: 10.1039/d3nj02280c

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Construction of hierarchical multilayered nanomaterials derived from Co-MOFs supported by pyromellitic acid for advanced lithium storage performance

Guohua Chen

Liying Wang

Yunfei Liu

et al.

Abstract: Cobalt-based metal-organic frameworks (Co-MOFs) supported by pyromellitic acid (PMA) were synthesized using a facile one-pot solvothermal method. Morphologies and sizes were tuned by assembly of Co-MOFs in different ratios solvents....

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A Hierarchical Porous Tungsten Oxynitride-Based Nanocomposite for High-Performance Lithium–Sulfur Batteries

Zhou,

Qu,

Zhang

et al. 2024

ACS Appl. Nano Mater.

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The inherent volume expansion of sulfur, the low conductivity of sulfur species, and the shuttle effects of lithium polysulfides (LiPSs) have limited the commercial deployment of lithium−sulfur (Li−S) batteries. Herein, a tungsten oxynitride skeleton featured with a three-dimensional ordered macroporous (3DOM) structure and embedded with ZIF-67-derived Co-NC nanoparticles (S/Co-NC/WNO) is developed as an effective sulfur host in Li−S batteries. The stable and unique 3DOM structure is conducive to electrolyte permeation and reduces the influence of the volume expansion. Nitrogen doping not only enhances the electrical conductivity of WO 3 but also favors LiPS trapping. Meanwhile, Co-NC nanoparticles act as catalytic centers, promoting LiPS adsorption and catalytic conversion, leading to quick and durable Li−S chemistry. Therefore, S/Co-NC/WNO exhibits outstanding electrochemical performance. The initial discharge capacity is 1028.5 mAh g −1 at 0.2 C, and after 100 cycles, a discharge capacity of 938.0 mAh g −1 is maintained. Even under a sulfur loading of 8 mg cm −2 , the Li−S battery was capable of reaching an areal capacity of 5.54 mAh cm −2 . In addition, the flexible pouch cell based on S/Co-NC/WNO cathode also achieved stable cycling performance, which demonstrates its promising potential in Li− S battery applications.

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A Hierarchical Porous Tungsten Oxynitride-Based Nanocomposite for High-Performance Lithium–Sulfur Batteries

Zhou,

Qu,

Zhang

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

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Construction of hierarchical multilayered nanomaterials derived from Co-MOFs supported by pyromellitic acid for advanced lithium storage performance

Abstract: Cobalt-based metal-organic frameworks (Co-MOFs) supported by pyromellitic acid (PMA) were synthesized using a facile one-pot solvothermal method. Morphologies and sizes were tuned by assembly of Co-MOFs in different ratios solvents....

Cited by 1 publication

References 57 publications

A Hierarchical Porous Tungsten Oxynitride-Based Nanocomposite for High-Performance Lithium–Sulfur Batteries

A Hierarchical Porous Tungsten Oxynitride-Based Nanocomposite for High-Performance Lithium–Sulfur Batteries

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