Layer-by-Layer Assembled Polyaniline Nanofiber/Multiwall Carbon Nanotube Thin Film Electrodes for High-Power and High-Energy Storage Applications

Hyder, Nasim; Lee, Seung Woo; Cebeci, Fevzi Çakmak; Schmidt, Daniel; Shao‐Horn, Yang; Hammond, Paula T.

doi:10.1021/nn2029617

Cited by 256 publications

(230 citation statements)

References 40 publications

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“…Carbon materials and conducting polymers can be incorporated through vacuum filtration,404 in situ polymerization,405, 406 and Layer‐by‐layer (LbL) 407, 408. Hybrid materials after optimum are expected to display high capacitances and improved stability due to the synergic effect of the two components.…”

Section: Electrode Materialsmentioning

confidence: 99%

Materials Design and System Construction for Conventional and New‐Concept Supercapacitors

et al. 2017

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With the development of renewable energy and electrified transportation, electrochemical energy storage will be more urgent in the future. Supercapacitors have received extensive attention due to their high power density, fast charge and discharge rates, and long‐term cycling stability. During past five years, supercapacitors have been boomed benefited from the development of nanostructured materials synthesis and the promoted innovation of devices construction. In this review, we have summarized the current state‐of‐the‐art development on the fabrication of high‐performance supercapacitors. From the electrode material perspective, a variety of materials have been explored for advanced electrode materials with smart material‐design strategies such as carbonaceous materials, metal compounds and conducting polymers. Proper nanostructures are engineered to provide sufficient electroactive sites and enhance the kinetics of ion and electron transport. Besides, new‐concept supercapacitors have been developed for practical application. Microsupercapacitors and fiber supercapacitors have been explored for portable and compact electronic devices. Subsequently, we have introduced Li‐/Na‐ion supercapacitors composed of battery‐type electrodes and capacitor‐type electrode. Integrated energy devices are also explored by incorporating supercapacitors with energy conversion systems for sustainable energy storage. In brief, this review provides a comprehensive summary of recent progress on electrode materials design and burgeoning devices constructions for high‐performance supercapacitors.

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Section: Electrode Materialsmentioning

confidence: 99%

Materials Design and System Construction for Conventional and New‐Concept Supercapacitors

et al. 2017

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“…1,2, 8,[11][12][13][14][15][16][17] To take full advantage of the anisotropic properties, a number of recent studies focused on the integration of aligned carbon nanotubes (CNTs) at a variety of CNT volume fractions (V f ) into a polymer matrix architecture, [18][19][20][21][22] forming an aligned CNT polymer nanocomposite (A-PNC). However, due to the limitations of sample size and testing techniques, which commonly include either bulk compression or nanoindentation, [18][19][20] previous studies were not able to determine the full constitutive relations for such materials.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional elastic constitutive relations of aligned carbon nanotube architectures

Handlin

Stein

Villoria

et al. 2013

Journal of Applied Physics

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Tailorable anisotropic intrinsic and scale-dependent properties of carbon nanotubes (CNTs) make them attractive elements in next-generation advanced materials. However, in order to model and predict the behavior of CNTs in macroscopic architectures, mechanical constitutive relations must be evaluated. This study presents the full stiffness tensor for aligned CNT-reinforced polymers as a function of the CNT packing (up to ∼ 20 vol. %), revealing noticeable anisotropy. Finite element models reveal that the usually neglected CNT waviness dictates the degree of anisotropy and packing dependence of the mechanical behavior, rather than any of the usually cited aggregation or polymer interphase mechanisms. Combined with extensive morphology characterization, this work enables the evaluation of structure-property relations for such materials, enabling design of aligned CNT material architectures.

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“…Wang and colleagues have developed a method to fabricate mesoporous PANI films for supercapacitor applications on graphene nano sheets using particles of mesoporous silica as a template. 21 Also, thin PANI films have been grown on carbon nanotubes (CNTs) 22 and mesoporous carbon 23 to produce electrodes for high power and high energy-storage applications. Moreover, Abdiryim and colleagues reported a solid-state synthesis of PANI and nano TiO 2 composite with a specific capacitance of 442 F g −1 .…”

mentioning

confidence: 99%

Mesoporous Polyaniline Films for High Performance Supercapacitors

Khdary

Abdesalam

Enany

2014

J. Electrochem. Soc.

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High surface area mesoporous polyaniline (M-PANI) films can be produced on the surface of glassy carbon electrodes by the electrochemical polymerization from a composite made by mixing a Brij 98 surfactant with a water solution of aniline and sulfuric acid. The surfactant serves as a structure directing agent. When the quantity of Brij 98 in the composite was 45% by weight, it formed a hexagonal phase that comprises a template of cylinders arranged on a hexagonal lattice with a hydrophilic core. The aniline monomer infiltrated the core of the templates. When the potential of the glassy carbon electrode was cycled, the polymerization occurred inside the hollow core and cast it with the PANI film. Subsequently, the Brij 98 template was removed by a thorough washing with water to produce a well-ordered M-PANI film. The structure and the surface morphology of the M-PANI films were fully characterized by a scanning electron microscope and a transmission electron microscope. The electrochemical capacitance properties were investigated using electrochemical techniques, e.g., cyclic voltammetry, galvanostatic cycling and electrochemical impedance. The data showed a significant increase in the specific capacitance (as high as 532 F g −1 ) of the M-PANI films when compared with a non M-PANI electrode, which delivered a specific capacitance of 228 F g Supercapacitors, also known as electrochemical capacitors, have attracted immense attention as one type of efficient energy storage device because of their unique capability to store and release the charge at a very high rate.1,2 Supercapacitors store electrical charges at the interface between high surface area electrodes and liquid electrolytes. The energy stored in supercapacitors comes from the non-faradaic current due to charging of the electrical double layer as well as the pseudocapacitance produced by the faradaic current, which is caused by oxidation-reduction processes that take place at the surface of the electroactive materials.3-5 Therefore, supercapacitors could store capacitances several orders of magnitude higher than conventional capacitors while still maintaining the unique advantage of a high power density and exhibiting excellent reversibility with a long life cycle. 6,7 Many materials have been used to fabricate supercapacitor electrodes, such as carbon 8 and metal oxides, e.g., RuO 2 and NiO x . 9,10Also, conducting polymers of polyaniline, polypyrrole, poly(3,4-ethylenedioxythiophene), and polythiophene are widely employed as electrode materials in supercapacitor applications. 11,12 Conducting polymers mainly store energy through a faradaic current resulting from the transfer of charge between electrode and electrolyte (pseudocapacitors). The charge-transfer process is usually accompanied by electrosorption, oxidation-reduction reactions, and intercalation processes.13 When oxidation occurs, ions are transferred to the polymer backbone and, in case of reduction, the ions are released back into the solution; therefore, the charge-discharge process in con...

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Layer-by-Layer Assembled Polyaniline Nanofiber/Multiwall Carbon Nanotube Thin Film Electrodes for High-Power and High-Energy Storage Applications

Cited by 256 publications

References 40 publications

Materials Design and System Construction for Conventional and New‐Concept Supercapacitors

Materials Design and System Construction for Conventional and New‐Concept Supercapacitors

Three-dimensional elastic constitutive relations of aligned carbon nanotube architectures

Mesoporous Polyaniline Films for High Performance Supercapacitors

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