Aromatic Carbonyl Derivative Polymers as High‐Performance Li‐Ion Storage Materials

Han, Xijiang; Chang, Caixian; Yuan, Liangjie; Sun, Taolei; Sun, Jutang

doi:10.1002/adma.200602584

Cited by 420 publications

(438 citation statements)

References 25 publications

(20 reference statements)

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“…via fast surface redox reactions [7][8][9][10][11][12][13]. Carbon materials are conjugated and contain a variety of oxygen groups on the surfaces, edges and defects.…”

Section: Introductionmentioning

confidence: 99%

High-capacity pseudocapacitive Li storage on functional nanoporous carbons with parallel mesopores

Zeng

Wang

2016

Energy Storage Materials

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. conductivity and enhanced surface redox activity endows the functionalized carbon cathode with high capacity (313 mA h/g@50 mA/g), good stability (>200 cycles) and high rate capability (148 mA h/g@400 mA/g).

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“…via fast surface redox reactions [7][8][9][10][11][12][13]. Carbon materials are conjugated and contain a variety of oxygen groups on the surfaces, edges and defects.…”

Section: Introductionmentioning

confidence: 99%

High-capacity pseudocapacitive Li storage on functional nanoporous carbons with parallel mesopores

Zeng

Wang

2016

Energy Storage Materials

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“…In particular, organic molecules that mimic redox centres in biological energy transduction have gained a great deal of attention for their sustainability and universal availability in natural systems 3,4 . For instance, carbonyl-based compounds are the most well-known examples of bio-inspired redox centres, imitating quinone cofactors in nature, such as plastoquinone and ubiquinone, which are involved in the electron transport chain of chloroplasts and mitochondria [5][6][7][8][9] . Previous studies on these compounds have shown promising electrochemical properties with high energy densities [10][11][12][13] .…”

mentioning

confidence: 99%

Biologically inspired pteridine redox centres for rechargeable batteries

et al. 2014

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The use of biologically occurring redox centres holds a great potential in designing sustainable energy storage systems. Yet, to become practically feasible, it is critical to explore optimization strategies of biological redox compounds, along with in-depth studies regarding their underlying energy storage mechanisms. Here we report a molecular simplification strategy to tailor the redox unit of pteridine derivatives, which are essential components of ubiquitous electron transfer proteins in nature. We first apply pteridine systems of alloxazinic structure in lithium/sodium rechargeable batteries and unveil their reversible tautomerism during energy storage. Through the molecular tailoring, the pteridine electrodes can show outstanding performance, delivering 533 Wh kg À 1 within 1 h and 348 Wh kg À 1 within 1 min, as well as high cyclability retaining 96% of the initial capacity after 500 cycles at 10 A g À 1 . Our strategy combined with experimental and theoretical studies suggests guidance for the rational design of organic redox centres.

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“…It is apparent that all TiN-C nanocomposites showing a huge irreversible capacity loss on the rst cycle can be attributed to: (1) the incapability of removing all the lithium on discharge that is inserted onto the rst charge; (2) the reduction of the electrolyte on the electrode surface and formation of Solid Electrolyte Interface (SEI) [26][27][28][29]. Li ions can be trapped into graphene defect sites because of reacting with surface functional groups [30][31][32]. The EIS measurements that have been done before cycling at 3.0 V versus Li/Li + and the corresponding Nyquist plots are shown in Figure 5(b), indicating that the impedance of samples reduces with the application of heat treatment because of crystallization of both TiN and C phases.…”

Section: Electrochemical Performancementioning

confidence: 99%

Investigation of carbon phase evolutions in titanium nitride-carbon nanocomposites prepared in supercritical benzene with respect to their lithium storage capacity

et al. 2017

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Abstract. Titanium nitride-carbon nanocomposites have been synthesized by the reaction of TiCl 4 and NaN 3 in supercritical benzene medium that also serves as a carbon source. The as-prepared precursor has been subjected to di erent heat treatments under ammonia and nitrogen atmospheres. The structure and chemical composition of the synthesized TiN-C nanocomposites are studied by X-Ray Di raction (XRD) and CHN elemental analysis. Meanwhile, the nature of carbonaceous species and the respective carbon phase transitions during supercritical process and following heat treatments are further investigated by Raman spectroscopy, Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS), and their charge-discharge characteristics with respect to lithium storage. After 10 h of NH3 treatment at 1000 C, carbonaceous phase transforms to graphene layered structure. The highly e cient mixed TiN conducting network and the internal defects between G layers induced by nitrogen doping improve rate capability and cycling performance of G sheets and provide a speci c capacity of 381 mAh g 1 at Charge/Discharge (C/D) rate of 0.2 C. The enhanced electrochemical performance of the SIV nanocomposite is mainly due to improving the electronic/ionic conductivity, reducing charge transfer coe cient, and increasing electrochemical surface area that are resulted from anchoring of TiN nanoparticles to graphene sheets.

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Aromatic Carbonyl Derivative Polymers as High‐Performance Li‐Ion Storage Materials

Cited by 420 publications

References 25 publications

High-capacity pseudocapacitive Li storage on functional nanoporous carbons with parallel mesopores

High-capacity pseudocapacitive Li storage on functional nanoporous carbons with parallel mesopores

Biologically inspired pteridine redox centres for rechargeable batteries

Investigation of carbon phase evolutions in titanium nitride-carbon nanocomposites prepared in supercritical benzene with respect to their lithium storage capacity

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