Aloe peel-derived honeycomb-like bio-based carbon with controllable morphology and its superior electrochemical properties for new energy devices

Wang, Ziqi; Yun, Sining; Wang, Xiao Dong; Wang, Chen; Si, Yiming; Zhang, Yangliang; Xu, Hongfei

doi:10.1016/j.ceramint.2018.11.091

Cited by 87 publications

(19 citation statements)

References 68 publications

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“…Therefore, the development of BDCs with controllable morphologies is highly desirable for improving the electrochemical properties. In this regard, BDCs from aloe peel undergoing morphology transformation from spherical to honeycomb‐like structure have shown an increase in specific surface area from 13 to 1286 m 2 ·g –1 , as well as improvement in the specific capacitance 233 . BDCs from pine barks with tunable morphologies, such as honeycomb‐like porous carbons, uniform carbon nanosheets, and irregular‐shaped carbon microparticles, deliver different specific capacitances and rate performances attributed to the differences in morphologies and structural characteristics 234 …”

Section: Influencing Factors Of Bdcs In Ecsmentioning

confidence: 99%

Renewable biomass‐derived carbons for electrochemical capacitor applications

Luo

Chen

et al. 2021

SusMat

118

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Biomass is rich, renewable, sustainable, and green resources, thereby excellent raw material for the fabrication of carbon materials. The diversity in structure and morphology of biomass are relevant in obtaining carbon materials with different structures and performances. The inherent ordered porous structure of biomass also benefits the activation process to yield porous carbons with ultrahigh specific surface area and pore volume. Besides, obtained biomass‐derived carbons (BDCs) are hard carbon with porous morphology, stable structure, superior hardness/strength, and good cycling performances when used in electrochemical capacitors (ECs). The inherent N, S, P, and O elements in biomass yield naturally self‐doped N, S, P, and O BDCs with unique intrinsic structures. In this paper, the synthesis approaches and applications of BDCs in ECs are reviewed. It shows that BDCs electrochemical performances are highly determined by their pore structures, specific surface areas, heteroatoms doping, graphitization degree, defects, and morphologies. The electrochemical performances of BDCs can further be improved by compositing with other materials, such as graphene, carbon nanofibers/nanotubes, transition metal oxides or hydroxides, and conducting polymers. The future challenges and outlooks of BDCs are also provided.

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Section: Influencing Factors Of Bdcs In Ecsmentioning

confidence: 99%

Renewable biomass‐derived carbons for electrochemical capacitor applications

Luo

Chen

et al. 2021

SusMat

118

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“…It showed that the specific capacitance of NRPC-112 was 340, 329, 316, 287, 273 F g −1 at the current density of 0.5, 1, 2, 5, 10 A g −1 , respectively, implying the rate capability of ~80% retention (the ratio of the specific capacitance at the current density of 10 A g −1 and 0.5 A g −1 ); while the specific capacitance of CN800 was 246, 216, 189, 158, 111 F g −1 at the current density of 0.5, 1, 2, 5, 10 A g −1 , respectively, indicating the rate capability of ~45% retention. The main reasons for these differences are as follows: firstly, the structure of the cottonseed hull is dense and has no pores, and the NRPC-112 has continuous interconnected and porous structure, micropores could provide abundant active sites for ion storage, while micropores could promote fast ion transmission [ 35 ]. Moreover, the pores interconnected to each other.…”

Section: Resultsmentioning

confidence: 99%

Micro-Structure Determines the Intrinsic Property Difference of Bio-Based Nitrogen-Doped Porous Carbon—A Case Study

et al. 2020

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Biomass-derived porous carbon materials have drawn considerable attention due to their natural abundance and low cost. In this work, nitrogen-doped porous carbons with high nitrogen content and large surface areas were designed and prepared from cottonseed hull and cattail. The two plant-based biomass compositions are similar, but the structures are very different, generating distinctly different property and performance of the prepared carbon materials. NRPC-112 has good electrochemical properties, while CN800 has good adsorption properties. By comparing the microstructure differences between the two starting materials, it was found that the structure of the raw materials would significantly affect the properties and performance of the materials. The work provided an important theoretical basis and reference for the selection of bio-resources for preparing carbon material. It is also important for choosing the appropriate synthesis method, process optimization, and application scenarios.

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“…To improve their photocatalytic properties without significantly impairing the green characteristics of the approach, the oxides were supported on a carbon matrix, which was obtained from bio-sourced aloe peel waste (Table 4, entry 21). 350 Both the pristine and the carbon-based powders were simply dispersed in isopropanol and sprayed onto a heated FTO substrate and annealed at 400°C (at least 100°C lower than the annealing temperature for platinum-based CEs). The best efficiency was provided by the iron-modified supported oxide, which outperformed the reference device, thus resulting in a "green" and rather sustainable alternative to platinum.…”

Section: Cost-effective and Eco-sustainable Counter-electrodes (Ces)mentioning

confidence: 99%

Recent advances in eco-friendly and cost-effective materials towards sustainable dye-sensitized solar cells

et al. 2020

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Aloe peel-derived honeycomb-like bio-based carbon with controllable morphology and its superior electrochemical properties for new energy devices

Cited by 87 publications

References 68 publications

Renewable biomass‐derived carbons for electrochemical capacitor applications

Renewable biomass‐derived carbons for electrochemical capacitor applications

Micro-Structure Determines the Intrinsic Property Difference of Bio-Based Nitrogen-Doped Porous Carbon—A Case Study

Recent advances in eco-friendly and cost-effective materials towards sustainable dye-sensitized solar cells

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