Liquid Crystalline Graphene Oxide/PEDOT:PSS Self-Assembled 3D Architecture for Binder-Free Supercapacitor Electrodes

Islam, Md. Monirul; Chidembo, Alfred T.; Aboutalebi, Seyed Hamed; Cardillo, Dean; Liu, Huan; Konstantinov, Konstantin; Dou, Shi Xue

doi:10.3389/fenrg.2014.00031

Cited by 51 publications

(44 citation statements)

References 41 publications

(56 reference statements)

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“…The morphologic change of inorganic materials from a rough to a smooth surface is often observed when inorganic materials are covered with organic moieties. [36][37][38] Thus, the smooth surfaces of B-Cal and N-Cal in physiological fluids observed in the present study could have been due to corona formation.…”

Section: Discussionmentioning

confidence: 56%

The fate of calcium carbonate nanoparticles administered by oral route: absorption and their interaction with biological matrices

Lee

Kim

et al. 2015

IJN

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Background Orally administered particles rapidly interact with biological fluids containing proteins, enzymes, electrolytes, and other biomolecules to eventually form particles covered by a corona, and this corona potentially affects particle uptake, fate, absorption, distribution, and elimination in vivo. This study explored relationships between the biological interactions of calcium carbonate particles and their biokinetics. Methods We examined the effects of food grade calcium carbonates of different particle size (nano [N-Cal] and bulk [B-Cal]: specific surface areas of 15.8 and 0.83 m 2 /g, respectively) on biological interactions in in vitro simulated physiological fluids, ex vivo biofluids, and in vivo in gastrointestinal fluid. Moreover, absorption and tissue distribution of calcium carbonates were evaluated following a single dose oral administration to rats. Results N-Cal interacted more with biomatrices than bulk materials in vitro and ex vivo, as evidenced by high fluorescence quenching ratios, but it did not interact more actively with biomatrices in vivo. Analysis of coronas revealed that immunoglobulin, apolipoprotein, thrombin, and fibrinogen, were the major corona proteins, regardless of particle size. A biokinetic study revealed that orally delivered N-Cal was more rapidly absorbed into the blood stream than B-Cal, but no significant differences were observed between the two in terms of absorption efficiencies or tissue distributions. Both calcium carbonates were primarily present as particulate forms in gastrointestinal fluids but enter the circulatory system in dissolved Ca 2+ , although both types showed partial phase transformation to dicalcium phosphate dihydrate. Relatively low dissolution (about 4%), no remarkable protein–particle interaction, and the major particulate fate of calcium carbonate in vivo gastrointestinal fluids can explain its low oral absorption (about 4%) regardless of particle size. Conclusion We conclude that calcium carbonate nanoparticles can act more actively with biological matrices in vitro and ex vivo, but that in vivo, their biological interactions and biokinetics are not affected by particle size.

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Section: Discussionmentioning

confidence: 56%

The fate of calcium carbonate nanoparticles administered by oral route: absorption and their interaction with biological matrices

Lee

Kim

et al. 2015

IJN

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“…When the Cu foils are applied with 1 V constant voltage, the response current is used to monitor the self-healing performance of sample. [43,44] The PEDOT:PSS consists of two chemically distinct S groups, and they belong to thiophene ring and sulfonate group of PEDOT and PSS, respectively, as shown in Figure 4c. Compared to PEDOT:PSS sample, the bigger response current of P-rGOA and P-1.5 indicate the smaller series resistance, the results of which conform to those in following EIS analysis in Figure 6a.…”

Section: Materials and Structure Analysismentioning

confidence: 99%

Ultrathin PEDOT:PSS/rGO Aerogel Providing Tape‐Like Self‐Healable Electrode for Sensing Space Electric Field with Electrochemical Mechanism

Wei

Wang

et al. 2019

Adv Elect Materials

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A versatile composite aerogel is developed by introducing of PEDOT:PSS in reduced graphene oxide, resulting in an ultrathin aerogel film around 100 µm thick. Like a tape, the aerogel can tightly attach to smooth or rough substrate, and there forms a self‐healable and anti‐vibration energy storage electrode. With a Ti foil substrate, the electrode offers an electrochemical capacity of 190 mF cm−2 at 0.1 mA cm−2 working current density. It also exhibits 98.7% capacitance retention after 10 000 charge/discharge cycles, with almost negligible capacitance decline even after eight damaging/healing cycles or 4000 vibrating cycles. With symmetrical aerogel‐based electrodes, a smart electrochemical device is explored as a sensor for sensitively detecting space electric field strength, ranging from 1100 to 19 000 V m−1. Simulation results verify that the response current in the sensor comes from the internal recombination current in the electrochemical device, which originates from ion recombination near the electrode substrate in space electric field. Further, a validation sensor experiment is designed and realized with affiliated modules, successfully monitoring space electric field.

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“…They also fabricated an asymmetric supercapacitor based on the same hybrid electrode and activated carbon as anode that showed high capacity retention (>96% over 2000 cycles) and energy density 23 Wh kg −1 . Later, they realized a binder free supercapacitor electrodes based on GOLC‐Poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) layer‐by‐layer self‐assembled 3D architecture . Interaction of PEDOT:PSS with GOLC dispersions ensured a conductive polymer entrapped composites without any binding agent.…”

Section: Interesting Properties and Applications Of Graphene Oxide LImentioning

confidence: 99%

Graphene Oxide Liquid Crystals: Discovery, Evolution and Applications

et al. 2016

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The discovery and relevant research progress in graphene oxide liquid crystals (GOLCs), the latest class of 2D nanomaterials exhibiting colloidal liquid crystallinity arising from the intrinsic disc-like shape anisotropy, is highlighted. GOLC has conferred a versatile platform for the development of novel properties and applications based on the facile controllability of molecular scale alignment. The first part of this review offers a brief introduction to LCs, including the theoretical background. Particular attention has been paid to the different types of LC phases that have been reported thus far, such as nematic, lamellar and chiral phases. Several key parameters governing the ultimate stability of GOLC behavior, including pH and ionic strength of aqueous dispersions are highlighted. In a relatively short span of time since its discovery, GOLCs have proved their remarkable potential in a broad spectrum of applications, including highly oriented wet-spun fibers, self-assembled nanocomposites, and architectures for energy storage devices. The second part of this review is devoted to an exclusive overview of the relevant applications. Finally, an outlook is provided into this newly emerging research field, where two well established scientific communities for carbon nanomaterials and liquid crystals are ideally merged.

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Liquid Crystalline Graphene Oxide/PEDOT:PSS Self-Assembled 3D Architecture for Binder-Free Supercapacitor Electrodes

Cited by 51 publications

References 41 publications

The fate of calcium carbonate nanoparticles administered by oral route: absorption and their interaction with biological matrices

The fate of calcium carbonate nanoparticles administered by oral route: absorption and their interaction with biological matrices

Ultrathin PEDOT:PSS/rGO Aerogel Providing Tape‐Like Self‐Healable Electrode for Sensing Space Electric Field with Electrochemical Mechanism

Graphene Oxide Liquid Crystals: Discovery, Evolution and Applications

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