Carbon aerogels from bacterial nanocellulose as anodes for lithium ion batteries

Wang, Liping; Schütz, Christina; Salazar-Alvarez, Germán; Titirici, Maria‐Magdalena

doi:10.1039/c3ra47853j

Cited by 132 publications

(78 citation statements)

References 41 publications

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“…This composite (Fig. 1d) shows almost amorphous features with weak diffraction rings corresponding to (002) and (100) planes of pyrolytic carbon 19 , complying with our XRD results ( Figure S2). Its corresponding Raman spectroscopy and nitrogen sorption isotherms (BET surface area 270 m 2 g -1 and pore volume 0.15 cm 3 .g -1 ) are provided in Figure S3 and S4, respectively.…”

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confidence: 88%

Rice husk derived carbon–silica composites as anodes for lithium ion batteries

et al. 2014

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COMMUNICATION This journal isCarbon-silica composites were obtained via simply heating rice husk at 900 o C under N 2 atmosphere. This composite exhibits a high capacity and superior cycling performance as anodes for lithium ion batteries.Energy consumption is concomitantly growing with the economic growth and the world's population expansion. Due to limited fossil sources, developments of clean, alternative, and sustainable energy technologies are imperative 1 . In parallel, the intermittent renewable energies (e.g. wind, solar, hydro/geothermal) need the implementation of high efficient energy storage devices. As of today, lithium ion batteries (LIBs) are the contenders for these power source systems, which have been widely used in the portable electronics and present a promising future in the electric vehicles and hybrid electric vehicles 2 .

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confidence: 88%

Rice husk derived carbon–silica composites as anodes for lithium ion batteries

et al. 2014

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“…[ 12,13 ] Despite the fact that carbon structures form after releasing non-carbon atoms during the carbonization process, the conductivity of carbonized cellulose material is still low. [ 12,13 ] Despite the fact that carbon structures form after releasing non-carbon atoms during the carbonization process, the conductivity of carbonized cellulose material is still low.…”

mentioning

confidence: 99%

“…[ 12,13 ] Despite the fact that carbon structures form after releasing non-carbon atoms during the carbonization process, the conductivity of carbonized cellulose material is still low. [ 13 ] Graphitization is usually carried out at temperatures higher than 900 °C. This stage enhances the order of the graphene stacks.…”

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confidence: 99%

Highly Conductive Microfiber of Graphene Oxide Templated Carbonization of Nanofibrillated Cellulose

Zhu

Shen

et al. 2014

Adv Funct Materials

100

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wileyonlinelibrary.comcarbonization in a given atmosphere and hydrothermal carbonization are two promising techniques to accomplish the conversion from cellulose to carbonaceous materials. [ 12,13 ] Despite the fact that carbon structures form after releasing non-carbon atoms during the carbonization process, the conductivity of carbonized cellulose material is still low. [14][15][16] One strategy to enhance the conductivity of carbonized materials is to improve the graphitic structure of the carbonized product by increasing the carbonization temperature, which is also called graphitization. This stage enhances the order of the graphene stacks. [ 13 ] Graphitization is usually carried out at temperatures higher than 900 °C. A conductivity of 100 S/cm is obtained when the carbonization temperature is higher than 2000 °C; [ 17 ] however, such high temperatures require expensive equipment and are energy consuming.Chemically exfoliated graphene oxide (GO) is a twodimensional (2D) material, with rich hydroxyl, carboxyl, and epoxide functional groups on the basal planes and the planar edges. [ 18 ] It has been reported that GO may act as a template to assemble materials, to form novel structures or even to alternate molecular confi gurations. [19][20][21][22] Carbonization of GO fi lled poly(acrylonitrile) (PAN) nanofi bers demonstrates that GO can function as a template to improve the graphitic order and orientation in PAN carbon nanofi bers. [ 23 ] Studies also show that adding a very small amount of GO to glucose results in more conductive carbonized materials with higher degree of carbonization. [ 24 ] Thick layers of reduced GO (rGO) sheets are obtained, which is different from the spherical particles obtained from carbonization of pure cellulose. Such phenomena suggest that GO can be used as a template for cellulose carbonization. In addition, GO is a low cost building block to make highly conductive microfi bers. rGO microfi bers with a conductivity of 570 S/cm and 416 S/cm have been reported to be formed by chemical reduction and thermal reduction, respectively. [ 25,26 ] For the fi rst time, we reported highly conductive microfi bers based on GO and nanofi brillated cellulose (NFC) with GO serving as a template for cellulose carbonization, and carbonized NFC repairing the defects of carbonized/reduced GO (rGO) and linking rGO sheets together. Figure 1 a-b show the morphology change of NFC from fi bers to spherical particles after carbonization. In the carbonized GO+NFC (c(GO+NFC)) microfi bers, only Microfi bers with conductivity of 649 ± 60 S/cm are introduced through a carbonization of well-aligned graphene oxide (GO) -nanofi brillated cellulose (NFC) hybrid fi bers. GO acts as a template for NFC carbonization, which changes the morphology of carbonized NFC from microspheres to sheets while improving the carbonization of NFC. Meanwhile, the carbonized NFC repairs the defects of reduced GO (rGO) and links rGO sheets together. The GO templated carbonization of NFC as well as the alignment of the building block...

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“…Carbon aerogels are another class of carbon materials derived from polymeric precursors. Carbon aerogels derived from resorcinol formaldehyde resin, bacterial cellulose, and starch have been evaluated as anode material in Li‐ion cells.…”

Section: Polymeric Materials In Li‐ion Cellsmentioning

confidence: 99%

Polymeric materials for lithium‐ion cells

John

Cheruvally

2017

Polymers for Advanced Techs

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Lithium‐ion (Li‐ion) cells have gained considerable attention in recent years as a power source for various applications owing to their high voltage, high energy density, low self‐discharge, and excellent cycle life. Polymeric materials play a pivotal role in the processing, performance, and safety of Li‐ion cells. The polymeric materials used in Li‐ion cells include: binder for electrode processing, separator, electrolyte, and electrode active material. Active research is being pursued in all of these areas to improve the energy density, power density, cycle life, and safety of Li‐ion cells. This review article gives an overview of the various polymeric materials used in Li‐ion cells and the recent advances in these materials. Copyright © 2017 John Wiley & Sons, Ltd.

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Carbon aerogels from bacterial nanocellulose as anodes for lithium ion batteries

Cited by 132 publications

References 41 publications

Rice husk derived carbon–silica composites as anodes for lithium ion batteries

Rice husk derived carbon–silica composites as anodes for lithium ion batteries

Highly Conductive Microfiber of Graphene Oxide Templated Carbonization of Nanofibrillated Cellulose

Polymeric materials for lithium‐ion cells

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