Weaving 3D highly conductive hierarchically interconnected nanoporous web by threading MOF crystals onto multi walled carbon nanotubes for high performance Li–Se battery

Li, Chao; Wang, Yingying; Li, Hongyan; Liu, Jing; Song, Jian-Ping; Fusaro, Luca; Hu, Zhi Yi; Chen, Yan‐Xin; Yu, Li; Su, Bao‐Lian

doi:10.1016/j.jechem.2020.11.023

Cited by 49 publications

(4 citation statements)

References 44 publications

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“…Metal–organic frameworks (MOFs) with unique porous structures and ultrahigh-specific surface areas are readily synthesized by metal ions (clusters) and play an important role in energy storage. − For instance, various MOF-derived porous carbon structures, porous web-derived MIL-68(Al), cobalt single atom hollow porous carbon pyrolyzed from the zeolitic imidazolate framework (ZIF) particles, ZIF-8 decorated with FeN 4 and Co 2 N 3 , N-doped hierarchically porous carbon, N-doped graphitic scaffold carbon, and trimodally porous N-doped carbon frameworks are being widely explored in the field of Se-based hosts. MOF-derived porous carbon with a 3D structure accommodates Se particles to improve electronic conductivity and reduce volume expansion.…”

Section: Introductionmentioning

confidence: 99%

In Situ Generation of AlF₃ in Nanoporous Carbon to Enable Cathode–Electrolyte Interface Construction for Stable Li–Se Batteries

Liu

Zhang

et al. 2023

ACS Appl. Nano Mater.

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A strategy for the constructing of the cathode− electrolyte interface (CEI) film assisted by AlF 3 as a cathode host for lithium−selenium batteries is proposed and realized. A simple onestep method for the conversion of porous carbon containing Al particles (PC/Al) to layered AlF 3 (PC/AlF 3 ) was employed. The stable PC substrate with multidirectional channels alleviates the volume expansion and improves the electron conductivity during cycling. At the same time, the uniform dispersion of AlF 3 in the interlayer and intracavity of PC shows strong chemical adsorption toward polyselenides. Moreover, AlF 3 boosts the construction of the CEI film, which further serves as a blocked layer grown on the cathode interface to prevent subsequent side reactions. Hence, the PC/AlF 3 −Se cathode presents a satisfying discharge capacity of 580 mAh g −1 at 5 C. Even at 10 C, the PC/AlF 3 −Se cathode achieved long cycling stability with a capacity decay rate of 0.028% for 1000 long cycles. This strategy provides an insight into facilitating the formation of CEI film toward highly stable Li−Se batteries.

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Section: Introductionmentioning

confidence: 99%

In Situ Generation of AlF₃ in Nanoporous Carbon to Enable Cathode–Electrolyte Interface Construction for Stable Li–Se Batteries

Liu

Zhang

et al. 2023

ACS Appl. Nano Mater.

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“…However, the development of Li-Se batteries still faces many problems, such as notorious shuttle effect and volume expansion in Li + insert/extract processes, which cause the loss of active material and low Coulombic efficiency. Meanwhile, the intermediate products (polyselenides) dissolve in ether-based electrolyte and further migrate to the anode side, which will not only passive the surface of lithium metal anode, but also severely reduce the cyclic performance [ 22 , 23 , 24 , 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

A Facile Pre-Lithiated Strategy towards High-Performance Li2Se-LiTiO2 Composite Cathode for Li-Se Batteries

Xia

Fang

et al. 2022

Nanomaterials

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Conventional lithium-ion batteries with a limited energy density are unable to assume the responsibility of energy-structure innovation. Lithium-selenium (Li-Se) batteries are considered to be the next generation energy storage devices since Se cathodes have high volumetric energy density. However, the shuttle effect and volume expansion of Se cathodes severely restrict the commercialization of Li-Se batteries. Herein, a facile solid-phase synthesis method is successfully developed to fabricate novel pre-lithiated Li2Se-LiTiO2 composite cathode materials. Impressively, the rationally designed Li2Se-LiTiO2 composites demonstrate significantly enhanced electrochemical performance. On the one hand, the overpotential of Li2Se-LiTiO2 cathode extremely decreases from 2.93 V to 2.15 V. On the other hand, the specific discharge capacity of Li2Se-LiTiO2 cathode is two times higher than that of Li2Se. Such enhancement is mainly accounted to the emergence of oxygen vacancies during the conversion of Ti4+ into Ti3+, as well as the strong chemisorption of LiTiO2 particles for polyselenides. This facile pre-lithiated strategy underscores the potential importance of embedding Li into Se for boosting electrochemical performance of Se cathode, which is highly expected for high-performance Li-Se batteries to cover a wide range of practical applications.

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“…The choice of the template is vital to the success of the assembly. Commonly used templates include metal-based materials (e.g., Te nanowire [20]), carbon materials (carbon nanotubes (CNTs), carbon nanofiber (CNFs) and so on) and polymers [21][22][23] Among of them, 1-D polymer nanowires or nanofiber templates with unique high surface-to-volume ratio, adjustable size, and surface modifiability attract wide research interests [24,25] In particular, 1-D polyacrylonitrile (PAN) nanowires substrate prepared by electrospinning is the most widely used in many research studies [23,26] For instance, Centrone et al reported a microwave irradiation approach to grow MIL-47 on 1-D PAN nanowires [27] Han et al proposed that the uniform and stable growth of MOFs on PAN nanowires can be enhanced through two types of chemical modification methods [23] These studies have shown that the surface-exposed functional groups play a key role in the MOFs' growth on the PAN substrate, which act as binding sites for metal species of the target MOFs. Nevertheless, due to the difficulties in controlling the number of functional groups, and the compatibility between functional groups and MOFs, MOFs may fall off and be unevenly distributed on the surface of PAN.…”

Section: Introductionmentioning

confidence: 99%

Assembly of Copolymer and Metal−Organic Framework HKUST-1 to Form Cu2−xS/CNFs Intertwining Network for Efficient Electrocatalytic Hydrogen Evolution

Bai

Liu

et al. 2021

Nanomaterials

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The construction of complex intertwined networks that provide fast transport pathways for ions/electrons is very important for electrochemical systems such as water splitting, but a challenge. Herein, a three dimensional (3-D) intertwined network of Cu2−xS/CNFs (x = 0 or 0.04) has been synthesized through the morphology-preserved thermal transformation of the intertwined PEG-b-P4VP/ HKUST-1 hybrid networks. The strong interaction between PEG chains and Cu2+ is the key to the successful assembly of PEG-b-P4VP nanofibers and HKUST-1, which inhibits the HKUST-1 to form individual crystalline particles. The obtained Cu2−xS/CNFs composites possess several merits, such as highly exposed active sites, high-speed electronic transmission pathways, open pore structure, etc. Therefore, the 3-D intertwined hierarchical network of Cu2−xS/CNFs displays an excellent electrocatalytic activity for HER, with a low overpotential (η) of 276 mV to reach current densities of 10 mA cm−2, and a smaller Tafel slope of 59 mV dec−1 in alkaline solution.

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Weaving 3D highly conductive hierarchically interconnected nanoporous web by threading MOF crystals onto multi walled carbon nanotubes for high performance Li–Se battery

Cited by 49 publications

References 44 publications

In Situ Generation of AlF₃ in Nanoporous Carbon to Enable Cathode–Electrolyte Interface Construction for Stable Li–Se Batteries

In Situ Generation of AlF₃ in Nanoporous Carbon to Enable Cathode–Electrolyte Interface Construction for Stable Li–Se Batteries

A Facile Pre-Lithiated Strategy towards High-Performance Li2Se-LiTiO2 Composite Cathode for Li-Se Batteries

Assembly of Copolymer and Metal−Organic Framework HKUST-1 to Form Cu2−xS/CNFs Intertwining Network for Efficient Electrocatalytic Hydrogen Evolution

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Weaving 3D highly conductive hierarchically interconnected nanoporous web by threading MOF crystals onto multi walled carbon nanotubes for high performance Li–Se battery

Cited by 49 publications

References 44 publications

In Situ Generation of AlF3 in Nanoporous Carbon to Enable Cathode–Electrolyte Interface Construction for Stable Li–Se Batteries

In Situ Generation of AlF3 in Nanoporous Carbon to Enable Cathode–Electrolyte Interface Construction for Stable Li–Se Batteries

A Facile Pre-Lithiated Strategy towards High-Performance Li2Se-LiTiO2 Composite Cathode for Li-Se Batteries

Assembly of Copolymer and Metal−Organic Framework HKUST-1 to Form Cu2−xS/CNFs Intertwining Network for Efficient Electrocatalytic Hydrogen Evolution

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In Situ Generation of AlF₃ in Nanoporous Carbon to Enable Cathode–Electrolyte Interface Construction for Stable Li–Se Batteries

In Situ Generation of AlF₃ in Nanoporous Carbon to Enable Cathode–Electrolyte Interface Construction for Stable Li–Se Batteries