Preparation of biomass activated carbon with aligned graphene nanosheet arrays from bamboo parenchymal cells for supercapacitors DOI

Yao Xia,

Zhigao Liu, Yuxiang Huang

et al.

Holzforschung, Journal Year: 2024, Volume and Issue: 78(7), P. 414 - 424

Published: June 6, 2024

Abstract The increasing recognition of the need for economically viable carbon materials in supercapacitors has resulted a notable emphasis on utilizing recycled biomass waste as precursor activated (AC). This study investigates production highly porous AC through vertically aligned graphene nanosheet arrays (VAGNAs) derived from bamboo parenchyma cells, type waste. focus lies manipulating ratio alkali to during activation process. Elevating alkali-carbon augments specific surface area while concurrently reducing presence VAGNAs. Surprisingly, generated with an four exhibits remarkable capacitance 215 F g −1 when subjected current density 0.2 A . When integrated into supercapacitor apparatus, this material demonstrates energy 11.2 W-hours per kilogram (Wh kg ) at power 50 W (W ). Moreover, it displays exceptional cycling stability, maintaining 89.4 % its after undergoing 10,000 cycles 6 M potassium hydroxide electrolyte. findings investigation underscore potential cells sustainable storage applications.

Language: Английский

Moisture-Stable CsSnBr2Cl Halide Perovskite: Electrochemical Insights in Aqueous Environments DOI
Ferdous Yasmeen, Mohasin Tarek, M. A. Basith

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(36), P. 47535 - 47550

Published: Aug. 29, 2024

In this investigation, moisture-stable CsSnBr

Language: Английский

Citations

4
Impact of Boehmite and Gibbsite on the supercapacitor performances of Polypyrrole: γ-AlO(OH)/PPy/CF and γ-Al(OH)3/PPy/CF flexible and wearable nanocomposites DOI
Melih Beşir Arvas,

Sultan Yaylagül,

Kardelen Uzbiçen

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178879 - 178879

Published: Jan. 1, 2025

Language: Английский

Citations

0
Electrocatalytic Activity of Multifunctional Mn-Doped SrFeO3-δ/Ti-MXene Nanohybrid for Efficient Overall Water Splitting DOI

Saravanan Kartigueyane,

Kumar Arunachala Kumar S.P,

Mohamad S. AlSalhi

et al.

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Language: Английский

Citations

0
Tuning the Electronic And Transport Properties of CaMoO4 Nanofibers with High-Spin Ni for Efficient and Stable Supercapacitors DOI

Yiming Yuan,

Dongsheng Chen, Yixin Luo

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(44), P. 60404 - 60414

Published: Oct. 24, 2024

Calcium molybdate (CaMoO4) has recently garnered considerable attention for supercapacitors due to its stable crystal structure and cost-effective preparation. However, CaMoO4 prepared by traditional processes still suffered from insufficient electrochemical active sites poor electrical conductivity so far, thus leading the performance of CaMoO4-based being inferior state-of-the-art ones. nanofibers with a high specific surface area exhibit great potential their ability offer increased charge storage. Herein, mesoporous anchored Ni nanoparticles were fabricated via electrospinning combined subsequent thermal treatment. Density functional theory calculation UV–vis spectrophotometer results show that high-spin state can tune electronic nanofibers, decreasing band gap about 0.67 eV. Electron paramagnetic resonance (EPR) studies imply doping influences reducing oxygen vacancy concentration introducing hyperfine structures associated spins. These result in higher power energy density supercapacitors. As result, capacitance 1253.7 F·g–1 at current 0.5 A·g–1 an 86% retention rate after 2000 cycles 5 have been achieved Ni0.25Ca0.75MoO4-based supercapacitor. Furthermore, asymmetric supercapacitor (ASC) device optimized CaMoO4/Ni//AC demonstrated 49.43 Wh·kg–1 2700 W·kg–1, enabling lightening red light-emitting diode. The strategy might pave way practical applications high-power

Language: Английский

Citations

2
Preparation of biomass activated carbon with aligned graphene nanosheet arrays from bamboo parenchymal cells for supercapacitors DOI

Yao Xia,

Zhigao Liu, Yuxiang Huang

et al.

Holzforschung, Journal Year: 2024, Volume and Issue: 78(7), P. 414 - 424

Published: June 6, 2024

Abstract The increasing recognition of the need for economically viable carbon materials in supercapacitors has resulted a notable emphasis on utilizing recycled biomass waste as precursor activated (AC). This study investigates production highly porous AC through vertically aligned graphene nanosheet arrays (VAGNAs) derived from bamboo parenchyma cells, type waste. focus lies manipulating ratio alkali to during activation process. Elevating alkali-carbon augments specific surface area while concurrently reducing presence VAGNAs. Surprisingly, generated with an four exhibits remarkable capacitance 215 F g −1 when subjected current density 0.2 A . When integrated into supercapacitor apparatus, this material demonstrates energy 11.2 W-hours per kilogram (Wh kg ) at power 50 W (W ). Moreover, it displays exceptional cycling stability, maintaining 89.4 % its after undergoing 10,000 cycles 6 M potassium hydroxide electrolyte. findings investigation underscore potential cells sustainable storage applications.

Language: Английский

Citations

1