Self-assembled porous biomass carbon/RGO/nanocellulose hybrid aerogels for self-supporting supercapacitor electrodes

Chen, Ruwei; Li, Xinsheng; Huang, Qikai; Ling, Hao; Yang, Yang; Wang, Xiaohui

doi:10.1016/j.cej.2021.128755

Cited by 100 publications

(39 citation statements)

References 59 publications

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“…As a result, the hybrid aerogels were ductile combining the best aspects of both components. 28 In addition, hybrid aerogels of nanocellulose and functional materials including polydopamine, 29 MoS 2, 30 silica, 31 polypyrrole, 32 boron nitride, 33 and multicomponents 34,35 showed further improved small molecular adsorption 36 and thermal insulation in light of 3D nanoporous structure inherent of aerogels. 37,38 Notably, developing a material with additional partitioned pores for improved adsorption efficiency of a contaminant in ppm level and thermal superinsulation remains challenging.…”

Section: Introductionmentioning

confidence: 99%

Pickering emulsion templated strategy in composite aerogels with hierarchical porous structure improves thermal insulation and diphenylamine adsorption

Liu

Hua

et al. 2022

J of Applied Polymer Sci

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A facile Pickering emulsion templated approach is used to achieve nanocelluloses (NCs)/poly(aryl ether ketone) (PAEK) composite aerogels with low density and hierarchical porous structure. In this article, we evaluate the factors including water-oil volume ratio, PAEK loading and NCs species to unravel the impact of fiber morphology on the formation and properties of the Pickering emulsions and aerogels. The results show both cellulose nanofibrils (CNF) and microfibrous cellulose (MFC) display excellent performance in stabilizing Pickering emulsions. Besides, the NCs/PAEK composite aerogels reveal a nanonet constructed porous network with excellent properties of thermal insulation. The lowest thermal conductivity of 17.8 mWÁm À1 ÁK À1 is obtained for the CNF/PAEK composite aerogel. To our knowledge, this is one of the most efficient thermal insulators in the reported NCs-based aerogels. Additionally, the NCs/PAEK composite aerogels demonstrate an efficiency of 98.1% in diphenylamine adsorption of water. These findings reveal a potential application of NCs/PAEK composite aerogels in adsorbent and thermal insulators in chemical industries and the construction sector.

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Section: Introductionmentioning

confidence: 99%

Pickering emulsion templated strategy in composite aerogels with hierarchical porous structure improves thermal insulation and diphenylamine adsorption

Liu

Hua

et al. 2022

J of Applied Polymer Sci

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“…This composite aerogel exhibited high specific surface area (1007.9 m 2 /g), high conductivity, outstanding mechanical strength of 240 kPa, and an efficient MnO 2 deposition ability (33.9 mg/cm 2 ). Moreover, the use of this composite aerogel in fabricating a self-supporting supercapacitor showed excellent capacitive property (4.8 F/cm 2 ) [ 118 ]. CNFs themselves have low utilization efficiency and poor conductivity.…”

Section: Applications Of Cns-based Functional Materials In Supercapacitorsmentioning

confidence: 99%

Cellulose-Derived Nanostructures as Sustainable Biomass for Supercapacitors: A Review

Kumar

2022

Polymers

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Sustainable biomass has attracted a great attention in developing green renewable energy storage devices (e.g., supercapacitors) with low-cost, flexible and lightweight characteristics. Therefore, cellulose has been considered as a suitable candidate to meet the requirements of sustainable energy storage devices due to their most abundant nature, renewability, hydrophilicity, and biodegradability. Particularly, cellulose-derived nanostructures (CNS) are more promising due to their low-density, high surface area, high aspect ratio, and excellent mechanical properties. Recently, various research activities based on CNS and/or various conductive materials have been performed for supercapacitors. In addition, CNS-derived carbon nanofibers prepared by carbonization have also drawn considerable scientific interest because of their high conductivity and rational electrochemical properties. Therefore, CNS or carbonized-CNS based functional materials provide ample opportunities in structure and design engineering approaches for sustainable energy storage devices. In this review, we first provide the introduction and then discuss the fundamentals and technologies of supercapacitors and utilized materials (including cellulose). Next, the efficacy of CNS or carbonized-CNS based materials is discussed. Further, various types of CNS are described and compared. Then, the efficacy of these CNS or carbonized-CNS based materials in developing sustainable energy storage devices is highlighted. Finally, the conclusion and future perspectives are briefly conferred.

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“…Due to the increasing demand for portable communication devices, 1,2 flexible electronic equipment, 3–6 and electric vehicles, 7–9 there is an urgent need to develop flexible rechargeable energy storage and conversion devices such as supercapacitors, 10–12 lithium‐ion batteries (LIBs), 13–15 metal‐air batteries, and so on 16–18 . The separator is a part of these electrochemical energy devices that ensures ion transmission and maintains electrode stability and device safety 19–21 …”

Section: Introductionmentioning

confidence: 99%

A non‐Newtonian fluidic cellulose‐modified glass microfiber separator for flexible lithium‐ion batteries

Zhu

Cao

Cheng

et al. 2021

EcoMat

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The separator is of great importance for regulating ion transmission, maintaining electrode stability, and device safety in lithium‐ion batteries. Despite their many advantages, glass microfiber separators have shortcomings that often give rise to poor cycle performance and fatal short‐circuit risk when used in flexible batteries. Here, we propose the use of a scalable non‐Newtonian fluidic cellulose permeation‐diffusion strategy to develop a cellulose/glass microfiber composite film with an hourglass‐gradient structure. Due to the unique gradient morphology resulting from the presence of cellulose macromolecules, the as‐prepared composite film showed an improved surface mass density, adjustable pore structure, controllable ion transport, ideal mechanical flexibility, and robustness. When used as the separator in an assembled lithium‐ion battery, the composite film exhibited rapid ion diffusion and Li dendrite inhibition, which endowed the battery with excellent cycle stability (specific capacity of 108.5 mAh g−1 after 1000 cycles) and good rate performance. This composite film shows great potential application in flexible lithium‐ion batteries including but not limited to pouch cells.

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Self-assembled porous biomass carbon/RGO/nanocellulose hybrid aerogels for self-supporting supercapacitor electrodes

Cited by 100 publications

References 59 publications

Pickering emulsion templated strategy in composite aerogels with hierarchical porous structure improves thermal insulation and diphenylamine adsorption

Pickering emulsion templated strategy in composite aerogels with hierarchical porous structure improves thermal insulation and diphenylamine adsorption

Cellulose-Derived Nanostructures as Sustainable Biomass for Supercapacitors: A Review

A non‐Newtonian fluidic cellulose‐modified glass microfiber separator for flexible lithium‐ion batteries

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