Confined Chemical Transitions for Direct Extraction of Conductive Cellulose Nanofibers with Graphitized Carbon Shell at Low Temperature and Pressure

Wang, Duan-Chao; Yu, Hou‐Yong; Qi, Dongming; Wu, Yuhang; Chen, Lumin; Li, Ziheng

doi:10.1021/jacs.1c04710

Cited by 49 publications

(40 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such a bonding capability can promote the combination of cellulose and polar molecules and establish stable high porosity in an aqueous medium network structure (Figure 2a,b). [43][44][45] The carbon atoms in CNTs exist as sp 2 hybridization, forming a highly delocalized π system. The carbon nanotubes aggregate due to van der Waals forces and π-π interactions.…”

Section: Resultsmentioning

confidence: 99%

Preparation of MC–CuS–PGr/PPy Nanocomposite Films via Strong Interfacial Interactions as a Battery‐Type Electrode

Dong

Xue

et al. 2022

Energy Tech

View full text Add to dashboard Cite

Flexible electronic devices are portable, wearable, bendable, and foldable and are becoming critical for connecting a new round of application upgrades and technological revolutions. [1] In this context, wearable electronic devices, such as electronic sensors, flexible displays, artificial electronic skin, backup power supplies, and health monitors, have attracted considerable attention, with rapid developments being reported. [2][3][4][5][6] The design and manufacture of lightweight electrochemical energy storage devices with flexibility, high energy density, and power density have become crucial to meet the power requirements of these electronic devices. [7,8] Traditional rigid energy storage devices represented by lead-acid batteries, [9] lithiumsulfur batteries, [10,11] and lithium-ion batteries [12] are likely to suffer equipment performance degradation or even damage when bent or folded, limiting their use in flexible electronic equipment. Therefore, there is a need to develop new energy storage systems compatible with flexible electronic devices. In this regard, flexible hybrid devices with excellent mechanical properties, higher power density, longer cycle life, rapid charge storage capacity, and excellent safety are needed to provide power sources for flexible and lightweight electronic equipment. [13][14][15][16][17] As pivotal components of flexible hybrid devices, electrode materials determine the properties of the energy storage device, such as energy density, power density, cycle life, and flexibility. [18] Therefore, the development of advanced electrode materials is the key to the fabrication of high-performance flexible devices for energy storage.Transition metal sulfides have attracted considerable attention owing to their excellent chemical and physical properties. For example, CoS, MnS, Ni 3 S 2 , SnS, and MoS 2 are used widely as anode materials for hybrid devices. [19][20][21][22][23] Among the various transition metal sulfides available, CuS is made from high earthabundant elements, has low cost, and is environmentally friendly; thus, it has been used widely in various fields. [24] As an important p-type semiconductor material, CuS is expected to become a candidate electrode material for energy storing owing to its good safety and large theoretical specific capacity. [25][26][27][28] However, the insufficient electronic conductivity of CuS causes the volume expansion of the material during the charging and discharging process, resulting in serious mechanical deformation and the rapid capacity fading of the electrode material, which greatly limits its application as an active electrode material. [29] To overcome these obstacles, considerable research has focused on the construction of new CuS composites, such as

show abstract

Section: Resultsmentioning

confidence: 99%

Preparation of MC–CuS–PGr/PPy Nanocomposite Films via Strong Interfacial Interactions as a Battery‐Type Electrode

Dong

Xue

et al. 2022

Energy Tech

View full text Add to dashboard Cite

show abstract

“…The flexible HEC/BNNS composite films were formed using a combination of ball milling and solution-casting (Figure a). The van der Waals forces between the BN layers. , were broken by the shear forces generated by high-speed ball milling. The viscous HEC solution can effectively inhibit the reaggregation of the exfoliated nanosheets, protect BNNS from violent ball-milling damage, and functionalize the BNNS through hydrogen bonding.…”

Section: Resultsmentioning

confidence: 99%

Ball-Milling Exfoliation of Hexagonal Boron Nitride in Viscous Hydroxyethyl Cellulose for Producing Nanosheet Films as Thermal Interface Materials

Huang

Songfeng

et al. 2021

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Boron nitride nanosheets (BNNS) exfoliated by physical or chemical methods frequently exhibit poor dispersity in common solvents due to incomplete exfoliation and a low degree of functionalization, which has severely impacted BNNS application performances as polymer and lubricant additives. In this work, we mechanically exfoliated the bulk boron nitride into nanosheets through a ball-milling method by adopting the viscous hydroxyethyl cellulose (HEC) solution as a medium. Because of the abundant hydroxyls and strong hydrogen bonding interactions with BNNS, the HEC can not only serve as an intercalator and a protective agent of the BNNS during ball milling but can also benefit the stable dispersion of the fabricated HEC/BNNS mixture in water. The HEC/BNNS aqueous dispersion obtained by directly pouring deionized water into the ball-milled product is easy to form a two-dimensional film via the solution-casting method. Because of the good exfoliation and dispersion of the BNNS in the HEC matrix, the HEC/BNNS films have high mechanical strength and thermal conductivity and have the potential to be used as thermal interface materials.

show abstract

“…Furthermore, Wang et al, by controlling the continuous reaction process and isolating oxygen, directly extracted intrinsically conductive CNF from biomass, where the confined ranges of molecular chains of CNFs were converted to highly graphitized carbon at 90 °C and atmospheric pressure, while large‐scale twisted graphene films were synthesized bottom up from CNFr‐graphene (CNFene) suspensions. [ 118 ] The conductivity of the best CNFene can be as high as 1.099 S cm −1 , and the generality of this synthetic route has been verified from multiple biomass cellulose sources. These findings break through the conventional notion that nanocellulose cannot conduct electricity by itself and are expected to extend the application potential of pure nanocellulose to electronic devices, energy storage, catalysis, and sensing.…”

Section: Emerging Cellulose With Customized Morphologies and Propertiesmentioning

confidence: 90%

“…To accommodate the application requirements of electronical devices, efforts are also dedicated to realize conductivity in cellulose materials. [116][117][118][119][120][121] For instance, Liu et al reported a nanostructured-reduced GO (rGO)/cellulose fiber (CF) composite paper by combining "dipping and drying" with a hydrothermal process (Figure 6e). [117] rGO sheets were uniformly coated on the CF network and assembled into a paper with microscale porous conductive networks, which show high conductivity for broad applications in flexible electronics, including energy-storage electrodes, antistatic packages, electromagnetic shielding, and sensors.…”

Section: Emerging Cellulose Materials With Tailorable Propertiesmentioning

confidence: 99%

Cellulose for Sustainable Triboelectric Nanogenerators

Zhou

Wang

et al. 2021

Adv Energy and Sustain Res

View full text Add to dashboard Cite

Triboelectric nanogenerators (TENGs) are an emerging technology capable of converting the ambient mechanical energy into electricity, promising for complete utilization of the distributed energy to improve the quality of human life. However, realizing material innovation for good trade‐off between the high triboelectric output and environment friendliness remains huge challenge, but it is of great importance for sustainable development of TENGs. Cellulose is a typical natural polymer that promises to address the challenge. Herein, the sustainable TENGs that originate from cellulose and potentially back to the natural world are focused on, realizing on‐spot TENGs. First, the sources, forms, morphologies, structures, and modifications of cellulose are systematically summarized, indicating the commercial and noncommercial cellulose materials’ potential for TENGs’ application. Second, the dominating additive properties of cellulose such as hydrophobicity, self‐cleaning, corrosion resistance, optical transparency, electrical conductivity, and degradability are introduced, which can effectively steer the development of TENGs. Thereafter, the TENGs with tailorable functions enabled by less‐refined cellulose and various physical/chemical modified cellulose are reviewed, as well as plants‐supported on‐spot TENGs with environment adaptivity and transient property, embracing a sustainable future of versatile cellulose to adapt the distributed network of multiscenario TENGs for energy management and information communication.

show abstract

Confined Chemical Transitions for Direct Extraction of Conductive Cellulose Nanofibers with Graphitized Carbon Shell at Low Temperature and Pressure

Cited by 49 publications

References 62 publications

Preparation of MC–CuS–PGr/PPy Nanocomposite Films via Strong Interfacial Interactions as a Battery‐Type Electrode

Preparation of MC–CuS–PGr/PPy Nanocomposite Films via Strong Interfacial Interactions as a Battery‐Type Electrode

Ball-Milling Exfoliation of Hexagonal Boron Nitride in Viscous Hydroxyethyl Cellulose for Producing Nanosheet Films as Thermal Interface Materials

Cellulose for Sustainable Triboelectric Nanogenerators

Contact Info

Product

Resources

About