Designing synthesis of porous biomass carbon from wheat straw and the functionalizing application in flexible, all-solid-state supercapacitors

Du, Weimin; Zhang, Zirui; Du, Lange; Fan, Xingwang; Shen, Zhiwen; Ren, Xiaorui; Zhao, Yunpeng; Wei, Chengzhen; Wei, Shaohong

doi:10.1016/j.jallcom.2019.05.207

Cited by 111 publications

(29 citation statements)

References 49 publications

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“…The corresponding Ragone plot derived from the GCD profiles is shown in Figure 7D, which reveals that this device delivers a high energy density of 15.0 Wh kg −1 at a power density of 500 W kg −1 , and 11.7 Wh kg −1 even at the high power density of 10 000 W kg −1 , superior or comparable to those previously reported carbon-based flexible symmetric devices, such as wheat straw-derived porous carbon-based capacitors, 45 coal tar pitch-derived porous carbon-based capacitors, 32 and 3D graphene-based capacitors. 46 As depicted in Figure 7E, a semicircle in the highfrequency region and a steep line in the low-frequency region can be observed in the Nyquist plot of the BHPC-700-based flexible all-solid-state supercapacitor.…”

Section: Capacitive Behaviormentioning

confidence: 54%

From basil seed to flexible supercapacitors: Green synthesis of heteroatom‐enriched porous carbon by self‐gelation strategy

et al. 2020

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Summary Basil seed‐derived multi‐heteroatom–doped porous carbons (BHPCs) are successfully synthesized by a facile gelation, followed by a moderate gel water/KOH coactivation process. The BHPC‐700 prepared at a relatively low KOH loading and activation temperature possesses large specific surface area (1178.3 m2 g−1), well‐defined hierarchical micro/meso porosity, and rich self‐doping heteroatom functionalities (13.08 at% of oxygen, nitrogen, phosphorous, and sulfur). Electrochemical tests demonstrate that the BHPC‐700–based electrode achieves an ultrahigh specific capacitance (464 F g−1 at 0.5 A g−1), outstanding rate performance (retaining 73.3% capacitance at 50 A g−1), and superior cyclic stability (96.8% capacitance retention over 5000 cycles). Furthermore, the BHPC‐700 electrodes are assembled into all‐solid‐state symmetrical supercapacitors. The as‐assembled device gives a high energy density of 15.0 Wh kg−1 at a power density of 500 W kg−1 and remarkable flexibility, demonstrating great application prospects in the area of sustainable portable electronics.

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Section: Capacitive Behaviormentioning

confidence: 54%

From basil seed to flexible supercapacitors: Green synthesis of heteroatom‐enriched porous carbon by self‐gelation strategy

et al. 2020

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“…Besides, lignin is rich in aromatic functionality consisting of p‐coumaryl alcohol, coniferyl alcohol, and sinapyl alcohol 56,58 . Biomass and its byproducts have widely been utilized as renewable and sustainable precursors of BDCs, including coconut shells, 36 wheat straw, 61 lotus leaves, 62 waste bones, 63 and yeast 64 …”

Section: Bdcs Application In Ecsmentioning

confidence: 99%

Renewable biomass‐derived carbons for electrochemical capacitor applications

Luo

Chen

et al. 2021

SusMat

123

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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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“…42 The electrochemical performance of BSAC-A-800 can also exceed those in literature, as shown in Table 2. 11,13,15,19,22,38,39,[41][42][43][44][45]…”

Section: The Electrochemical Characterizations Of Bsac-a-nmentioning

confidence: 99%

“…Notably, the energy and power densities of SSCs based on BSAC-A-800 using 17 m NaClO 4 are comparable to or even much better than the previously reported biomass derived carbon-based SSCs. 2,4,13,18,41,42,44 In addition, three SSCs in series can easily light 16 LEDs which form the pattern of "B" (see inset of Fig. 8e).…”

Section: The Electrochemical Characterizations Of Symmetrical Supercamentioning

confidence: 99%

“Water-in-salt” electrolyte enhanced high voltage aqueous supercapacitor with carbon electrodes derived from biomass waste-ground grain hulls

et al. 2020

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Designing synthesis of porous biomass carbon from wheat straw and the functionalizing application in flexible, all-solid-state supercapacitors

Cited by 111 publications

References 49 publications

From basil seed to flexible supercapacitors: Green synthesis of heteroatom‐enriched porous carbon by self‐gelation strategy

From basil seed to flexible supercapacitors: Green synthesis of heteroatom‐enriched porous carbon by self‐gelation strategy

Renewable biomass‐derived carbons for electrochemical capacitor applications

“Water-in-salt” electrolyte enhanced high voltage aqueous supercapacitor with carbon electrodes derived from biomass waste-ground grain hulls

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