Redispersion of dried plant nanocellulose: A review

Yang, Xu; Xu, Yongjian; Chen, Hao; Gao, Minlan; Yue, Xiaopeng; Ni, Yonghao

doi:10.1016/j.carbpol.2022.119830

Cited by 37 publications

(14 citation statements)

References 181 publications

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“…This suggests that the Zr‐CNF separator can reduce the space charge barrier, thereby accelerating Zn 2+ transport kinetics on the electrode surface. [ 28–53 ] The EIS tests showed that the symmetric cell with Zr‐CNF separator consistently had lower ion transfer impedance compared to the cell with TCNF separator (Figure 3h). It is found that the charge transfer resistance ( Rct ) of the Zr‐CNF symmetric cell significantly decreased from 101.1 to 35.64 Ω after cycling, while the TCNF symmetric cell exhibited a comparatively smaller reduction in Rct , decreasing from 194.0 to 153.6 Ω, representing a reduction of only 20.8%.…”

Section: Resultsmentioning

confidence: 99%

Designing Anti‐Swelling Nanocellulose Separators with Stable and Fast Ion Transport Channels for Efficient Aqueous Zinc‐Ion Batteries

Yang

Zhang

et al. 2023

Adv Funct Materials

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Separators swelling in aqueous electrolytes can cause inhomogeneous ion flux and unregulated dendrite propagation, yet the corresponding phenomenon and mitigation strategy are rarely studied. This article deals with the issue of pore structure variation caused by separator swelling in aqueous zinc‐ion batteries (AZBs) by employing nanocellulose separator as a representative example. A multifunctional separator composed of Zr4+‐hydrolysate‐coated nanocellulose (Zr‐CNF) is developed by in situ hydrolysis of Zr4+, which demonstrates excellent swelling resistance, pore‐structure stability, and percolating porosity due to cross‐linking and hydrogen bond shielding effect. Consequently, the homogeneous Zn‐ion flux, high ionic conductivity, and Zn2+ transfer number are maintained upon cycling. Moreover, the amorphous ZrO containing coating induces a homogeneous directional electric field around the interface, accelerating the Zn2+ influx, reducing the nucleation overpotential, and promoting homogeneous nucleation for Zn deposition. The Zr‐CNF separator enable dendrite‐free Zn anode with high Coulombic efficiency (99.7%) and exceptional cyclability for 680 h under 5 mA cm−2/5 mAh cm−2. The feasibility of the Zr‐CNF separator is verified in PANI/V2O5‐based AZBs and activated carbon‐based Zn‐ion capacitors. This study provides a facile approach to address separator swelling issue, enlightening novel insights into the efficient and sustainable aqueous battery technologies in the future.

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Section: Resultsmentioning

confidence: 99%

Designing Anti‐Swelling Nanocellulose Separators with Stable and Fast Ion Transport Channels for Efficient Aqueous Zinc‐Ion Batteries

Yang

Zhang

et al. 2023

Adv Funct Materials

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“…Current research predominantly focuses on surface charge modification, steric hindrance enhancement, solvent exchange, and controlled drying processes, yet further investigations are required to find more economical and practical solutions. 177 Water plays multiple roles in the cellulose industry, including acting as a suspending medium and swelling agent for fibers, a solvent for chemicals and additives, a dispersant and transport medium for fibers, and an aid in materialforming processes. Despite the maturity of the modern cellulose industry, water resource recovery has always been a significant challenge faced by this sector.…”

Section: Discussionmentioning

confidence: 99%

“…Dry nanocellulose, on the other hand, is affected by issues such as fiber entanglement and hornification, making it challenging to obtain dispersions that match the morphological structure of raw materials. Current research predominantly focuses on surface charge modification, steric hindrance enhancement, solvent exchange, and controlled drying processes, yet further investigations are required to find more economical and practical solutions …”

Section: Discussionmentioning

confidence: 99%

“…Although the entanglement and aggregation would densify the material into a more stable structure, from the view of industrial-scale production, avoiding the aggregation and hornification of fibers after dehydration and improving the redispersibility of fibers is of great value in reducing storage and transportation costs and realizing the large-scale production and application of nanocellulose. Surface charge modification, steric hindrance enhancement, solvent exchanging, and controlled drying processes have been studied to improve the nanocellulose redispersibility, based on preventing the formation of cellulose–cellulose hydrogen bonds …”

Section: Using Water Vs Removing Watermentioning

confidence: 99%

“…Surface charge modification, steric hindrance enhancement, solvent exchanging, and controlled drying processes have been studied to improve the nanocellulose redispersibility, based on preventing the formation of cellulose−cellulose hydrogen bonds. 177 Depending on the method employed, the drying process can modulate the type of interactions among cellulose fibers, consequently influencing the overall structure and properties of the cellulosic material. Conventional heating methods such as oven-drying and hot pressing could form dense and strong 1D and 2D materials, due to the water molecule bridging and the capillary and diffusion force inducing the forming of nanocellulose intermolecular hydrogen bonds.…”

Section: Using Water Vs Removing Watermentioning

confidence: 99%

See 2 more Smart Citations

The Critical Roles of Water in the Processing, Structure, and Properties of Nanocellulose

Jing,

Wu,

Siciliano

et al. 2023

ACS Nano

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The cellulose industry depends heavily on water owing to the hydrophilic nature of cellulose fibrils and its potential for sustainable and innovative production methods. The emergence of nanocellulose, with its excellent properties, and the incorporation of nanomaterials have garnered significant attention. At the nanoscale level, nanocellulose offers a higher exposure of hydroxyl groups, making it more intimate with water than micro-and macroscale cellulose fibers. Gaining a deeper understanding of the interaction between nanocellulose and water holds the potential to reduce production costs and provide valuable insights into designing functional nanocellulosebased materials. In this review, water molecules interacting with nanocellulose are classified into free water (FW) and bound water (BW), based on their interaction forces with surface hydroxyls and their mobility in different states. In addition, the waterholding capacity of cellulosic materials and various water detection methods are also discussed. The review also examines water-utilization and water-removal methods in the fabrication, dispersion, and transport of nanocellulose, aiming to elucidate the challenges and tradeoffs in these processes while minimizing energy and time costs. Furthermore, the influence of water on nanocellulose properties, including mechanical properties, ion conductivity, and biodegradability, are discussed. Finally, we provide our perspective on the challenges and opportunities in developing nanocellulose and its interplay with water.

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Nanocellulose and Its Composites Toward Flexible Supercapacitor

Zhao,

Zhang,

et al. 2024

Adv Materials Technologies

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Flexible wearable devices are revolutionizing the electronics industry with their lightweight, flexible, intelligent, and efficient characteristics. Flexible supercapacitors (FSCs) are promising energy storage devices for wearable electronics due to their high security, high power density, and long service life. Nanocellulose, a low‐cost and environmentally friendly material, has emerged as a promising candidate for FSC electrodes and electrolytes, owing to its degradable and renewable properties, and excellent mechanical behaviors. This review aims to provide a fresh perspective on optimizing FSCs by nanocellulose for superior energy storage. The exploration begins by detailing the preparation of various types of nanocellulose with unique structures. Subsequently, the latest research progress in crafting FSC electrodes with nanocellulose and its diverse composites, including conductive polymers, metal compounds, and carbon nanomaterials is comprehensively discussed. Additionally, gel electrolyte materials composed of nanocellulose composites are examined in detail. The previous research findings are consolidated, offering a reference point for further exploration of nanocellulose in this context.

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Redispersion of dried plant nanocellulose: A review

Cited by 37 publications

References 181 publications

Designing Anti‐Swelling Nanocellulose Separators with Stable and Fast Ion Transport Channels for Efficient Aqueous Zinc‐Ion Batteries

Designing Anti‐Swelling Nanocellulose Separators with Stable and Fast Ion Transport Channels for Efficient Aqueous Zinc‐Ion Batteries

The Critical Roles of Water in the Processing, Structure, and Properties of Nanocellulose

Nanocellulose and Its Composites Toward Flexible Supercapacitor

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