Carbon Nanotube/Cellulose Acetate Thermoelectric Papers

Mo, Jun-Hyun; Kim, Jae-Yeop; Kang, Young Hun; Cho, Song Yun; Jang, Kwang‐Suk

doi:10.1021/acssuschemeng.8b03670

Cited by 40 publications

(43 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increasingly serious environmental and energy issues have prompted the development of natural polymer materials [2,3]. Cellulose are widely used in our daily life and modern industrial production as renewable materials [4], composite materials [5], and cellulose derivatives [6,7,8]. The molecular weight (M) of cellulose affects the processing conditions, as well as the performance of the final cellulose products.…”

Section: Introductionmentioning

confidence: 99%

Elucidation of the Relationship between Intrinsic Viscosity and Molecular Weight of Cellulose Dissolved in Tetra-N-Butyl Ammonium Hydroxide/Dimethyl Sulfoxide

Yang

et al. 2019

Polymers

View full text Add to dashboard Cite

The determination of molecular weight of natural cellulose remains a challenge nowadays, due to the difficulty in dissolving cellulose. In this work, tetra-n-butylammonium hydroxide (TBAH) and dimethyl sulfoxide (DMSO) aqueous solution (THDS) were used to dissolve cellulose in a few minutes under room temperature into true molecular solutions. That is to say, the cellulose was dissolved in the solution in molecular level, and the viscosity of the solution is linearly dependent on the concentration of cellulose. The relationship between the molecular weight of cellulose and the intrinsic viscosity tested in such dilute solutions has been established in the form of the Mark–Houwink equation, [η]=0.24×DP1.21. The value of 1.21 indicates that the cellulose molecules dissolve in THDS quite well. The cellulose dispersion in the THDS was proved to be in molecular level by atomic force microscope (AFM) and dynamic light scattering (DLS). The reliability of the established Mark–Houwink equation was cross-checked by the gel permeation chromatography (GPC) and traditional copper (II) ethylenediamine (CED) method. No considerate degradation was observed by comparing the intrinsic viscosity and the degree of polymerization (DP) values of the original with and the regenerated cellulose samples. The natural cellulose can be molecularly dispersed in the multiple-component solvent (THDS), and kept stable for a certain period. A time efficient and reliable method has been supplied for determination of the degree of polymerization and the molecular weight of cellulose.

show abstract

Section: Introductionmentioning

confidence: 99%

Elucidation of the Relationship between Intrinsic Viscosity and Molecular Weight of Cellulose Dissolved in Tetra-N-Butyl Ammonium Hydroxide/Dimethyl Sulfoxide

Yang

et al. 2019

Polymers

View full text Add to dashboard Cite

show abstract

“…The coating method is a way to obtain cellulose/CNT composites with high electrical conductivity and good mechanical properties without changing the crystalline structure of cellulose. [67,68] Compared with the electrospinning method, the coating method has the advantages of simple operation and low economic cost. However, it still has the disadvantage, that is, the interfacecontact is not close enough and slightly lower mechanical properties of the composite material are observed.…”

Section: Coating Methodsmentioning

confidence: 99%

Progress in Cellulose/Carbon Nanotube Composite Flexible Electrodes for Supercapacitors

Sun¹,

Qi²,

Chen³

et al. 2021

Eng. Sci.

View full text Add to dashboard Cite

Nowadays, there is an increasing demand for wearable, portable and foldable small electronic products, and humancomputer interaction interface devices. Therefore, the supercapacitors as the energy storage device were extensively studied owing to their high energy/power density, fast charge-discharge processes, and long cycle life. Wherein the flexible electrode material is the essential component to boost the performance of supercapacitors. Cellulose, as a kind of natural flexible material with low-cost, wide-sourced, renewable, and robust mechanical properties, have been used as flexible substrate or template of electrodes. To enhance conductivity and excellent electrochemical performance of the cellulose-based flexible electrode, the carbon nanotube (CNT) with high-conductivity, good thermal and chemical stability, and unique internal structure was integrated. Thereby, the cellulose/CNT-based flexible electrodes with high energy/power density and long cycle life performance of flexible supercapacitors are prepared. This review mainly focuses on cellulose/CNT, emphatically summarizing the composition, preparation, and mechanism of the cellulose/CNT-based composite flexible electrode for supercapacitors. Additionally, the current challenges and prospects of the cellulose/CNT-based composite flexible electrode are discussed.

show abstract

“…[181,182] Based on single walled carbon nanotubes (SWCNTs), Jang's group proposed a freestanding membrane with thermoelectric property, which showed optimal P-type power as 1.41 ± 0.22 µW cm −1 K −1 at room temperature. [183] In addition, by combining CNTs and other conductive polymers like PEDOT:PSS, a thermoelectric device was developed by Fang and co-workers, which had an open circuit voltage of 300 mV and output power of 50 µW, respectively. [184] On the basis of MWCNTs and carboxylated nanocellulose fiber (C-CNF), Li's group reported a freestanding nanocomposite thermoelectric material.…”

Section: Thermoelectric Propertiesmentioning

confidence: 99%

Conductive Materials with Elaborate Micro/Nanostructures for Bioelectronics

2022

View full text Add to dashboard Cite

Bioelectronics, an emerging field with the mutual penetration of biological systems and electronic sciences, allows the quantitative analysis of complicated biosignals together with the dynamic regulation of fateful biological functions. In this area, the development of conductive materials with elaborate micro/nanostructures has been of great significance to the improvement of high‐performance bioelectronic devices. Thus, here, a comprehensive and up‐to‐date summary of relevant research studies on the fabrication and properties of conductive materials with micro/nanostructures and their promising applications and future opportunities in bioelectronic applications is presented. In addition, a critical analysis of the current opportunities and challenges regarding the future developments of conductive materials with elaborate micro/nanostructures for bioelectronic applications is also presented.

show abstract

Carbon Nanotube/Cellulose Acetate Thermoelectric Papers

Cited by 40 publications

References 29 publications

Elucidation of the Relationship between Intrinsic Viscosity and Molecular Weight of Cellulose Dissolved in Tetra-N-Butyl Ammonium Hydroxide/Dimethyl Sulfoxide

Elucidation of the Relationship between Intrinsic Viscosity and Molecular Weight of Cellulose Dissolved in Tetra-N-Butyl Ammonium Hydroxide/Dimethyl Sulfoxide

Progress in Cellulose/Carbon Nanotube Composite Flexible Electrodes for Supercapacitors

Conductive Materials with Elaborate Micro/Nanostructures for Bioelectronics

Contact Info

Product

Resources

About