Rationally assembled porous carbon superstructures for advanced supercapacitors

B, Gu; Su, Hai; Chu, Xiang; Wang, Qing; Huang, Haichao; He, Jiaqi; Wu, Taojian; Deng, Weili; Zhang, Haitao

doi:10.1016/j.cej.2019.01.007

Cited by 73 publications

(31 citation statements)

References 59 publications

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“…[ 22,23 ] As far as biomass‐based carbon materials were concerned, their energy storage characteristics were mainly determined by pore size distribution, specific surface area (SSA), and electronic structure. [ 24 ]…”

Section: Introductionmentioning

confidence: 99%

Hierarchically Divacancy Defect Building Dual‐Activated Porous Carbon Fibers for High‐Performance Energy‐Storage Devices

Wang

Liu

Jin

et al. 2020

Adv Funct Materials

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Renewable and environmentally friendly biomass-based carbon electrode materials naturally possess fast ion transport, high adsorption, and excellent chemical stability for high-performance energy-storage devices. However, intelligently building the effectively biomass-transferred carbon materials for the requirement of high energy density is still a big challenge to date. Here, a hierarchically divacancy defect building platform is reported for effectively biomass-transferred and highly interconnected 3D dual-activated porous carbon fibers (DACFs) based on the internal−external dual-activation function of the pre-embedded KOH and CO 2 molecular. This uniquely interconnected frameworks not only fully provide the abundant active sites for ion interaction, but also efficiently guarantee the substantial accommodation for ion storage. Based on this, the as-prepared DACFs-based supercapacitors deliver a high energy density of 61.3 Wh kg −1 at a power density of 875 W kg −1 in the EMIMBF 4 ionic liquid. This work not only provides a simple and efficient technique to enhance the energy density of carbon materials, but also probably promotes its additional application in environmental remediation.

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Section: Introductionmentioning

confidence: 99%

Hierarchically Divacancy Defect Building Dual‐Activated Porous Carbon Fibers for High‐Performance Energy‐Storage Devices

Wang

Liu

Jin

et al. 2020

Adv Funct Materials

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“…Carbon-based materials such as carbon nanotubes, carbon fibers, graphenes, and active carbon have been widely used in electrochemical capacitors due to their electrochemical stability, efficient conductivity, and low cost. 6,[19][20][21] For a young and emerging avenue, carbon quantum dots (CDs) have already made a significant impact in diverse scientific disciplines and have trended new development in biological imaging, photonics, electro-optics, and others. The zero-dimensional CDs often consisted of a predominantly turbostratic or graphitic sp 2 carbon in their amorphous to nanocrystalline core and abundant functional groups on its surface.…”

Section: Introductionmentioning

confidence: 99%

Morphology‐dependent electrochemical performance of nitrogen‐doped carbon dots@polyaniline hybrids for supercapacitors

et al. 2019

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Summary In this work, the binary N‐CDs@PANI hybrids were fabricated by introducing zero‐dimensional nitrogen‐doped carbon dots (N‐CDs) into reticulated PANI. Firstly, N‐CDs were prepared by one‐pot microwave method, and then, the N‐CDs were introduced into in situ oxidative polymerization of aniline (ANI) monomer. The N‐CDs with abundant functional groups and high electronic cloud density played a significant role in guiding the polyaniline‐ordered growth into intriguing morphologies. Moreover, morphology‐dependent electrochemical performances of N‐CDs@PANI hybrids were investigated and N‐CDs improve static interaction and enhance the special capacitances in the N‐CDs@PANI hybrids. Especially, the specific capacitance of PC4 hybrid can reach 785 F g−1, which exceed that of pure PANI (274 F g−1) at current density of 0.5 A g−1 according to three‐electrode measurement. And the capacitance retention of the PC4 hybrid still keeps 70% after 2000 cycles of charge and discharge. The N‐CDs@PANI hybrids can have potential applications in electrode materials, supercapacitors, nonlinear optics, and microwave absorption.

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“…Advanced electrode design and battery recycling technologies are urgently demanded to handle these problems. 15,16 It should be noted that the ultra-long life is the basic to handle the sustainable dilemma of LIBs, which can reduce the materials requirement and cost in the full-life cycle. Higher energy density and more cycling times are helpful to improve the lifespan of LIBs, which are the research focus of current LIBs and has achieved great success.…”

mentioning

confidence: 99%

A perspective on sustainable energy materials for lithium batteries

Cheng

Lin

Yuan

et al. 2021

SusMat

259

147

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Lithium ion battery has achieved great success in portable electronics and even recently electronic vehicles since its commercialization in 1990s. However, lithium-ion batteries are confronted with several issues in terms of the sustainable development such as the high price of raw materials and electronic products, the emerging safety accidents, etc. The recent progresses are herein emphasized on lithium batteries for energy storage to clearly understand the sustainable energy chemistry and emerging energy materials. The Perspective presents novel lithium-ion batteries developed with the aims of enhancing the electrochemical performance and sustainability of energy storage systems. First, revolutionary material chemistries, including novel low-cobalt cathode, organic electrode, and aqueous electrolyte, are discussed. Then, the characteristics of safety performance are analyzed and strategies to enhance safety are subsequently evaluated. Battery recycling is considered as the key factor for a sustainable society and related technologies are present as well. Finally, conclusion and outlook are drawn to shed lights on the further development of sustainable lithium-ion batteries.

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Rationally assembled porous carbon superstructures for advanced supercapacitors

Cited by 73 publications

References 59 publications

Hierarchically Divacancy Defect Building Dual‐Activated Porous Carbon Fibers for High‐Performance Energy‐Storage Devices

Hierarchically Divacancy Defect Building Dual‐Activated Porous Carbon Fibers for High‐Performance Energy‐Storage Devices

Morphology‐dependent electrochemical performance of nitrogen‐doped carbon dots@polyaniline hybrids for supercapacitors

A perspective on sustainable energy materials for lithium batteries

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