An in situ grown bacterial nanocellulose/graphene oxide composite for flexible supercapacitors

Jiang, Qisheng; Kacica, Clayton; Thiagarajan, S.; Liu, Keng‐Ku; Tadepalli, Sirimuvva; Biswas, Pratim; Singamaneni, Srikanth

doi:10.1039/c7ta03824k

Cited by 59 publications

(32 citation statements)

References 72 publications

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“…On the other hand, because of the layered structure and excellent electrons transport ability after combining with conductive substrates, MoSe 2 and its related hybrids with low volume density and high surface permeability can offer oversized reaction sites and show a negligible change of volume when a facile insertion/extraction process of ions and electrons occurs . These characteristics would result in supramaximal effective specific surface areas and ultrashort electron transfer distance which are critical factors for supercapacitor materials . In general, with more exposed edges of the active sites, larger effective surface areas and better electrons transport ability compared to other TMDs, MoSe 2 with conductive substrates would be potential not only for effective HER catalysts but also for high‐performance supercapacitor electrode materials.…”

Section: Introductionmentioning

confidence: 99%

Integrated Quasiplane Heteronanostructures of MoSe₂/Bi₂Se₃ Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance

Yang

Wang

et al. 2017

Adv Funct Materials

184

152

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MoSe 2 as a typical transition metal dichalcogenide holds great potential for energy storage and catalysis but its performance is largely limited by its poor conductivity. Bi 2 Se 3 nanosheets, a kind of topological insulators, possess gapless edges on boundary and show metallic character on surface. According to the principle of complementary, a novel integrated quasiplane structure of MoSe 2 /Bi 2 Se 3 hybrids is designed with artistic heteronanostructures via a hot injection in colloidal system. Interestingly, the heteronanostructures are typically constituted by single-layer Bi 2 Se 3 hexagonal nanoplates evenly enclosed by small ultrathin hierarchical MoSe 2 nanosheets on the whole surfaces. X-ray photoelectron spectroscopy investigations suggest obvious electron transfer from Bi 2 Se 3 to MoSe 2 , which can help to enhance the conductivity of the hybrid electrode. Especially, schematic energy band diagrams derived from ultraviolet photoelectron spectroscopy studies indicate that Bi 2 Se 3 has higher E F and smaller Φ than MoSe 2 , further confirming the electronic modulation between Bi 2 Se 3 and MoSe 2 , where Bi 2 Se 3 serves as an excellent substrate to provide electrons and acts as channels for high-rate transition. The MoSe 2 / Bi 2 Se 3 hybrids demonstrating a low onset potential, small Tafel slope, high current density, and long-term stability suggest excellent hydrogen evolution reaction activity, whereas a high specific capacitance, satisfactory rate capability, and rapid ions diffusion indicate enhanced supercapacitor performance.

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Section: Introductionmentioning

confidence: 99%

Integrated Quasiplane Heteronanostructures of MoSe₂/Bi₂Se₃ Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance

Yang

Wang

et al. 2017

Adv Funct Materials

184

152

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“…The composite was stable in water and could selectively separate organic and inorganic ions due to the size of the porosity and the charge of the graphene oxide. More recently it has been demonstrated that a graphene/BNC composite can be directly produced by culturing the bacteria (Gluconacetobacter hansenii) with graphene flakes273 . This method produced highly entangled BNC and graphene with excellent mechanical properties, electrochemical properties and cycling stability.Graphene oxide-cellulose composites have been made as sensitive and selective solvent sensors, based on detecting a change in capacitance upon sorption274 .…”

mentioning

confidence: 99%

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Thomas¹,

Raj²,

B³

et al. 2018

Chem. Rev.

1,262

752

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With increasing environmental and ecological concerns due to the use of petroleum based chemicals and products, the synthesis of fine chemicals and functional materials from natural resources is of great public value. Nanocellulose may prove to be one of the most promising green materials of modern times due to its intrinsic properties, renewability and abundance. In this review, we present nanocellulose-based materials from sourcing, synthesis, and surface modification of nanocellulose, to materials formation and applications. Nanocellulose can be sourced from biomass, plants or bacteria, relying of fairly simple, scalable and efficient isolation techniques. Mechanical, chemical, enzymatic treatments, or a combination of these, can be used to extract nanocellulose from natural sources. The properties of nanocellulose are dependent on the source, the isolation technique and potential subsequent surface transformations. Nanocellulose surface modification techniques are typically used to introduce either charged or hydrophobic moieties, and include: amidation, esterification, etherification, silylation, polymerization, urethanization, sulfonationand phosphorylation. Nanocellulose has excellent strength, Young's modulus, biocompatibility, and tunable self-assembly, thixotropic and photonic properties, which are essential for the applications of this material. Nanocellulose participates in the fabrication of a large range of nanomaterials and nanocomposites, including those based on polymers, metals, metal oxides and carbon. In particular, nanocellulose complements organic-based materials, where it imparts its mechanical properties to the composite. Nanocellulose is a promising material whenever material strength, flexibility and/or specific nanostructuring are required. Applications include functional paper, optoelectronics and antibacterial coatings, packaging, mechanically reinforced polymer composites, tissue scaffolds, drug delivery, biosensors, energy storage, catalysis, environmental remediation and 3 electrochemical controlled separation. Phosphorylated nanocellulose is a particularly interesting material, spanning a surprising set of applications in various dimensions including bone scaffolds, adsorbents, flame retardants and as a support for the heterogenization of homogeneous catalysts.

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“…However, a review by Stoller and Ruoff suggested that the three-electrode configuration is valuable for the determination of electrochemical-specific material characteristics, while a two-electrode configuration portrays the physical configuration, charge transfer, and internal voltage of packaged SCs, thus providing better information on the electrode materials [ 89 ]. Jiang et al reported the in situ incorporation of GO flakes and PEDOT: PSS into the bacterial nanocellulose (BNC) matrix and their electrode materials exhibited a specific capacitance of 373 F/g at a current density of 1 A/g [ 90 ]. Layered double hydroxides (LDHs) have recently been intensely studied as a candidate for SC applications.…”

Section: Advanced Electrodes For Scs: Present Status and Prospectsmentioning

confidence: 99%

Current Research of Graphene-Based Nanocomposites and Their Application for Supercapacitors

et al. 2020

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This review acmes the latest developments of composites of metal oxides/sulfide comprising of graphene and its analogues as electrode materials in the construction of the next generation of supercapacitors (SCs). SCs have become an indispensable device of energy-storage modes. A prompt increase in the number of scientific accomplishments in this field, including publications, patents, and device fabrication, has evidenced the immense attention they have attracted from scientific communities. These efforts have resulted in rapid advancements in the field of SCs, focusing on the development of electrode materials with features of high performance, economic viability, and robustness. It has been demonstrated that carbon-based electrode materials mixed with metal oxides and sulfoxides can perform extremely well in terms of energy density, durability, and exceptional cyclic stability. Herein, the state-of-the-art technologies relevant to the fabrication, characterization, and property assessment of graphene-based SCs are discussed in detail, especially for the composite forms when mixing with metal sulfide, metal oxides, metal foams, and nanohybrids. Effective synthetic methodologies for the nanocomposite fabrications via intercalation, coating, wrapping, and covalent interactions will be reviewed. We will first introduce some fundamental aspects of SCs, and briefly highlight the impact of graphene-based nanostructures on the basic principle of SCs, and then the recent progress in graphene-based electrodes, electrolytes, and all-solid-state SCs will be covered. The important surface properties of the metal oxides/sulfides electrode materials (nickel oxide, nickel sulfide, molybdenum oxide, ruthenium oxides, stannous oxide, nickel-cobalt sulfide manganese oxides, multiferroic materials like BaMnF, core-shell materials, etc.) will be described in each section as per requirement. Finally, we will show that composites of graphene-based electrodes are promising for the construction of the next generation of high performance, robust SCs that hold the prospects for practical applications.

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An in situ grown bacterial nanocellulose/graphene oxide composite for flexible supercapacitors

Abstract: A flexible supercapacitor electrode with excellent electrochemical performance and mechanical flexibility is fabricated via in situ incorporation of graphene oxide flakes and conducting polymer (PEDOT:PSS) into a layered bacterial nanocellulose network during its growth.

Cited by 59 publications

References 72 publications

Integrated Quasiplane Heteronanostructures of MoSe₂/Bi₂Se₃ Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance

Integrated Quasiplane Heteronanostructures of MoSe₂/Bi₂Se₃ Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Current Research of Graphene-Based Nanocomposites and Their Application for Supercapacitors

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An in situ grown bacterial nanocellulose/graphene oxide composite for flexible supercapacitors

Abstract: A flexible supercapacitor electrode with excellent electrochemical performance and mechanical flexibility is fabricated via in situ incorporation of graphene oxide flakes and conducting polymer (PEDOT:PSS) into a layered bacterial nanocellulose network during its growth.

Cited by 59 publications

References 72 publications

Integrated Quasiplane Heteronanostructures of MoSe2/Bi2Se3 Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance

Integrated Quasiplane Heteronanostructures of MoSe2/Bi2Se3 Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance

Nanocellulose, a Versatile Green Platform: From Biosources to Materials and Their Applications

Current Research of Graphene-Based Nanocomposites and Their Application for Supercapacitors

Contact Info

Product

Resources

About

Integrated Quasiplane Heteronanostructures of MoSe₂/Bi₂Se₃ Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance

Integrated Quasiplane Heteronanostructures of MoSe₂/Bi₂Se₃ Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance