Pyrolysis Enzymolysis-Treated Pomelo Peel: Porous Carbon Materials with Fe−Nx Sites for High-Performance Supercapacitor and Efficient Oxygen Reduction Applications DOI Open Access
Xiangyu Chen,

Jiahua Ma,

Xiaoshuai Sun

и другие.

Polymers, Год журнала: 2023, Номер 15(19), С. 3879 - 3879

Опубликована: Сен. 25, 2023

This paper proposes a different strategy for deriving carbon materials from biomass, abandoning traditional strong corrosive activators and using top−down approach with mild green enzyme targeted to degrade the pectin matrix in inner layer of pomelo peel cotton wool, inducing large number nanopores on its surface. Meanwhile, additional hydrophilic groups produced via an enzymatic treatment can be used effectively anchor metallic iron atoms prepare porous uniformly dispersed Fe−Nx structures, this case optimizing sample PPE−FeNPC−900’s specific surface area by up 1435 m2 g−1. PPE−FeNPC−900 is as electrode material 6 M KOH electrolyte; it manifests decent capacitance 400 F The assembled symmetrical supercapacitor exhibits high energy density 12.8 Wh kg−1 at 300 W power excellent cycle stability. As catalyst, also half−wave potential 0.850 V (vs. RHE) diffusion-limited current 5.79 mA cm−2 0.3 RHE). It has higher electron transfer lower hydrogen peroxide yield compared commercial Pt/C catalysts. green, simple, efficient designed study converts abundant, low−cost waste biomass into high-value multifunctional materials, which are critical achieving applications.

Язык: Английский

Preparation of Eucommia ulmoides Oliver wood derived activated carbons by combined microwave hydrothermal pretreatment and microwave pyrolysis as electrode materials for super capacitive performance DOI

Zhi-Zhen Chi,

Bi-Xin Yuan,

Qiang Qu

и другие.

Materials Today Sustainability, Год журнала: 2023, Номер 25, С. 100621 - 100621

Опубликована: Дек. 7, 2023

Язык: Английский

Процитировано

7
Manganese dioxide (MnO2) and biomass-derived carbon-based electroactive composite materials for supercapacitor application DOI Creative Commons
Pranoti H. Patil, Sushilkumar A. Jadhav

RSC Applied Interfaces, Год журнала: 2024, Номер 1(4), С. 624 - 647

Опубликована: Янв. 1, 2024

This review highlights the importance of MnO 2 & biomass-derived carbon materials and composites made from them for energy storage applications.

Язык: Английский

Процитировано

2
Highly porous ZIF-67/KLAC composite for enhanced supercapacitor performance with redox additive electrolyte DOI
Pooja Devi, Ashish Gupta, Ashavani Kumar

и другие.

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1009, С. 176943 - 176943

Опубликована: Окт. 9, 2024

Язык: Английский

Процитировано

2
Fabrication of Low-Cost and High-Energy Storage Capacitor Electrode from Teak (Tectona grandis) Leaves DOI
Pitchaimani Veerakumar, Ramya Ramkumar, Chellakannu Rajkumar

и другие.

Energy & Fuels, Год журнала: 2023, Номер 37(15), С. 11432 - 11444

Опубликована: Июль 20, 2023

In this work, the preparation of porous carbon obtained from teak (Tectona grandis) leaves is reported and used for supercapacitors (SCs). The leaf (TLC) was prepared using biowaste as source precursors by NaOH activation pyrolysis at 700–1000 °C under a nitrogen atmosphere. crystallinity, structural features, textural properties, thermal stability TLCs were characterized variety state-of-the-art techniques. Further electrochemical (EC) measurements, such cyclic voltammetry, impedance spectroscopy, galvanostatic charge–discharge three-electrode setup, done. TLC-900 has micro- mesoporous materials with large surface areas pore volumes high 1692.6 m2 g–1 0.86 cm3 g–1, respectively. Also, they exhibit remarkable EC capacitive achieving maximum specific capacitance (Csp) 310 F current density 1.0 A in 3.0 M KOH solution. Notably, attained stability, 123% retention same electrolyte after 10,000 cycles g–1. As result, fabricated device displayed energy 24 W h kg–1 power 1818 10 These outstanding behaviors, oxygen-containing functional groups, characteristics material indicate that are attractive fabrication future large-scale industrial SCs.

Язык: Английский

Процитировано

5
Pyrolysis Enzymolysis-Treated Pomelo Peel: Porous Carbon Materials with Fe−Nx Sites for High-Performance Supercapacitor and Efficient Oxygen Reduction Applications DOI Open Access
Xiangyu Chen,

Jiahua Ma,

Xiaoshuai Sun

и другие.

Polymers, Год журнала: 2023, Номер 15(19), С. 3879 - 3879

Опубликована: Сен. 25, 2023

This paper proposes a different strategy for deriving carbon materials from biomass, abandoning traditional strong corrosive activators and using top−down approach with mild green enzyme targeted to degrade the pectin matrix in inner layer of pomelo peel cotton wool, inducing large number nanopores on its surface. Meanwhile, additional hydrophilic groups produced via an enzymatic treatment can be used effectively anchor metallic iron atoms prepare porous uniformly dispersed Fe−Nx structures, this case optimizing sample PPE−FeNPC−900’s specific surface area by up 1435 m2 g−1. PPE−FeNPC−900 is as electrode material 6 M KOH electrolyte; it manifests decent capacitance 400 F The assembled symmetrical supercapacitor exhibits high energy density 12.8 Wh kg−1 at 300 W power excellent cycle stability. As catalyst, also half−wave potential 0.850 V (vs. RHE) diffusion-limited current 5.79 mA cm−2 0.3 RHE). It has higher electron transfer lower hydrogen peroxide yield compared commercial Pt/C catalysts. green, simple, efficient designed study converts abundant, low−cost waste biomass into high-value multifunctional materials, which are critical achieving applications.

Язык: Английский

Процитировано

4