Nanocellulose based functional materials for supercapacitor applications

Jose, Jasmine; Thomas, Vinoy; Vinod, V. P.; Abraham, Rani; Abraham, Susan C.

doi:10.1016/j.jsamd.2019.06.003

Cited by 61 publications

(34 citation statements)

References 68 publications

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“…Nanocelluloses can be classified into three main types, namely, cellulose nanocrystal, cellulose nanofibers, and bacterial nanocellulose, based on their source and dimensional differences [27,28]. Among them, cellulose nanofibers have gained wide attention because of their high tensile strength, huge aspect ratio, rich carboxyl content, and so on.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Performance of Self-Supported Flexible Cellulose Nanofibrils/Reduced Graphene Oxide Supercapacitor Electrode Materials

et al. 2020

Molecules

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With the rapid development of portable and wearable electronic devices, self-supporting flexible supercapacitors have attracted much attention, and higher requirements have been put forward for the electrode of the device, that is, it is necessary to have good mechanical properties while satisfying excellent electrochemical performance. In this work, a facile method was invented to obtain excellent self-supported flexible electrode materials with high mechanical properties and outstanding electrochemical performance by combining cellulose nanofibrils (CNFs) and reduced graphene oxide (RGO). We focused on the effect of the ratio of the addition of CNFs and the formation process of the film on the electrochemical and mechanical properties. The results show that the CNFs/RGO12 (where the ratio of CNFs to GO is 1:2) film displayed outstanding comprehensive properties; its tensile strength and conductivity were up to 83 MPa and 202.94 S/m, respectively, and its CA value was as high as 146 mF cm−2 under the current density of 5 mA cm−2. Furthermore, the initial retention rate of the specific capacitance was about 83.7% when recycled 2000 times; moreover, its capacitance did not change much after perpendicular bending 200 times. Therefore, the films prepared by this study have great potential in the field of flexible supercapacitors.

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Section: Introductionmentioning

confidence: 99%

Fabrication and Performance of Self-Supported Flexible Cellulose Nanofibrils/Reduced Graphene Oxide Supercapacitor Electrode Materials

et al. 2020

Molecules

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“…6,7 Several previously adopted techniques include the development and modification of new materials with excellent capacitive performance. Porous carbon is one of the materials believed to possess promisingly strong performance because of the increased specific surface area, suitable pore size distribution, nanostructures and hierarchical porosity of surface morphology, 8,9 good chemical stability and processing ease. 10 Furthermore, an increase in energy density requires porous carbon with a hierarchical porosity, obtainable from micro-, meso-, as well as macropores.…”

Section: Introductionmentioning

confidence: 99%

A rod‐like mesoporous carbon derived from agro‐industrial cassava petiole waste for supercapacitor application

Taer

Apriwandi

Dalimunthe

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND Agro‐industrial co‐products rich in lignocellulose, for example cassava petiole (CP) waste, have high potential as sources of porous carbon materials, alongside other impressive advantages, including ease of acquisition, abundance and availability, renewability and low cost. This work shows the successful treatment of mesoporous carbon with rod‐like structure derived from agro‐industrial CP waste carbonized and physically activated by direct one‐stage integrated pyrolysis using a zinc chloride (ZnCl2) activator agent, in the production of a supercapacitor electrode for energy storage. The ZnCl2 was tested at varying concentrations, including 0.5, 0.7 and 0.9 mol L–1. The surface morphology, chemical content, surface area and porous size distribution were evaluated to determine the physical properties of activated carbon, and a cyclic voltammetry method was used to assess the electrochemical characteristics using a two‐electrode system in 1 mol L–1 H2SO4 as an electrolyte. RESULTS The porous carbon obtained displayed a rod‐like morphology structure, featuring numerous hierarchical tuneable and well‐confirmed micropores and mesopores. This monolithic material contained predominantly C (87.85%), demonstrating a maximum surface area of 759.816 m2 g−1 at 0.9 mol L–1 concentration. Furthermore, the highest specific capacitance reached was 193 F g−1 at 0.7 mol L–1, with maximum energy and power densities of 26.90 Wh kg−1 and 96.94 W kg−1, respectively. CONCLUSION The novel rod‐like mesoporous carbon derived from CP waste produced using a facile, cost‐effective and sustainable method, without metal–organic framework or templates, shows great potential as an electrode material for enhanced supercapacitor performance. © 2020 Society of Chemical Industry (SCI)

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“…They found it has the greatest stability of electrical conductivity with only a 6% reduction after being bent 1,000 times (Weng et al, 2011). Similarly, Cui and team reported that the commercial paper sheets utilized in the fabrication of supercapacitors and lithium-ion batteries were coated with carbon nanotube (CNT) ink with the help of sodium dodecylbenzene sulfonate (SDBS) as a surfactant (Jose et al, 2019). Cui's group reported that CNF-based organic solar cells have a power conversion efficiency (PCE) of 0.4%.…”

Section: Energy Conversion and Harvesting Devicesmentioning

confidence: 99%

Lignocellulosic Biomass for the Synthesis of Nanocellulose and Its Eco-Friendly Advanced Applications

Gupta¹,

Shukla²

2020

Front. Chem.

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Nanocellulose is a unique and natural compound extracted from native cellulose using different extraction techniques. Nanocellulose is currently attracting attention due to its excellent properties such as special surface chemistry, exceptional physical and chemical strength, and rich hydroxyl groups for modification. In addition, its significant biological properties, like biodegradability, biocompatibility, and non-toxicity, accompanied by being environmentally friendly, are added advantages. The current review is focused on the lignocellulosic biomass processing methods for nanocellulose production and their usage for eco-friendly and environmental sustainability. We have also described insights into different techniques by which cellulosic materials can be changed into cellulose nanofibers (CNFs) and cellulose nanocrystals (CNCs). Lastly, we further discussed how nano-cellulosic materials are being used in a variety of industries such as the food sector, biomedical hygiene products, health care, water purification, and sensors. In the review, the unique uses of nanocelluloses in the production of nanocomposite materials, like flexible supercapacitor and polymer matrix, toward minimizing the utilization of global fossil energy and environmental pollution are envisaged. Finally, the significant application of nanomaterials in the areas of packaging industries, health and hygienic sector, cosmetics, and other important sectors are discussed. In the aspect of techno-economically feasibility, nano-cellulose-based materials may prove to be outstanding, environment friendly, and mitigate effluent load.

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Nanocellulose based functional materials for supercapacitor applications

Cited by 61 publications

References 68 publications

Fabrication and Performance of Self-Supported Flexible Cellulose Nanofibrils/Reduced Graphene Oxide Supercapacitor Electrode Materials

Fabrication and Performance of Self-Supported Flexible Cellulose Nanofibrils/Reduced Graphene Oxide Supercapacitor Electrode Materials

A rod‐like mesoporous carbon derived from agro‐industrial cassava petiole waste for supercapacitor application

Lignocellulosic Biomass for the Synthesis of Nanocellulose and Its Eco-Friendly Advanced Applications

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