Electrocapacitive and electrocatalytic performances of hydrochar prepared by one-step hydrothermal carbonization without further activation

被引：9

作者：

Amelia, Sekar Tri Wulan ^{[1
]}

Nurtono, Tantular ^{[1
]}

Setyawan, Heru ^{[1
]}

Widiyastuti, W. ^{[1
]}

机构：

[1] Sepuluh Nopember Inst Technol, Chem Engn Dept, Surabaya, Indonesia

来源：

MATERIALS RESEARCH EXPRESS | 2023年 / 10卷 / 07期

关键词：

electrocapacitive; electrocatalyst; hydrochar; hydrothermal; CELLULOSE AEROGELS; COIR FIBERS; CARBON; NITROGEN; ACID; CONVERSION; SULFUR; NANOFIBERS; BIOMASS; LIGNIN;

D O I：

10.1088/2053-1591/ace75f

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydrochar was produced from extracted avocado seed using one-step hydrothermal carbonization (HTC) at a temperature of 200 & DEG;C for 12 h. The effects of various feedstock solutions on the specific surface area, morphology, pore characteristics, crystallinity, and chemical bonding were investigated to confirm the changes in the electrochemical performances of the produced hydrochar. The presence of potassium permanganate (KMnO4) and ammonia (NH4OH) solution in the HTC process successfully produced a porous graphite-like structure of hydrochar with the highest surface area and specific capacitance. Moreover, it also exhibits excellent electrocatalytic performance toward the Oxygen Reduction Reaction (ORR), with a current density of 2.15 mA cm(-2) via the 2-electron pathway. These results imply that the HTC process can produce hydrochar with high electrocapacitive and electrocatalytic performances even without further activation at high temperatures.

引用

页数：17

共 61 条

[1] Electrochemical Investigation of the Effect of Process Parameters on the Corrosion Behavior of Aluminum-Cladded Pressure Vessel Steel Using a Friction Stir Diffusion Cladding Process [J].

Al-Badour, Fadi A. ;

Adesina, Akeem Y. ;

Ibrahim, Almigdad B. ;

Suleiman, Rami K. ;

Merah, Necar ;

Sorour, Ahmad A. .

METALS, 2020, 10 (05)

[2] Lignocellulosic Biomass as Source for Lignin-Based Environmentally Benign Antioxidants [J].

Alzagameem, Abla ;

El Khaldi-Hansen, Basma ;

Buechner, Dominik ;

Larkins, Michael ;

Kamm, Birgit ;

Witzleben, Steffen ;

Schulze, Margit .

MOLECULES, 2018, 23 (10)

[3] Structural Variation of Bamboo Lignin before and after Ethanol Organosolv Pretreatment [J].

Bai, Yuan-Yuan ;

Xiao, Ling-Ping ;

Shi, Zheng-Jun ;

Sun, Run-Cang .

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2013, 14 (11) :21394-21413

[4] Improved corrosion behaviour of electron beam melted Ti-6Al-4V alloy in phosphate buffered saline [J].

Bai, Yun ;

Gai, Xin ;

Li, Shujun ;

Zhang, Lai-Chang ;

Liu, Yujing ;

Hao, Yulin ;

Zhang, Xing ;

Yang, Rui ;

Gao, Yongbo .

CORROSION SCIENCE, 2017, 123 :289-296

[5] Potassium permanganate assisted organosolv pretreatment enhances enzymatic hydrolysis of corn stover [J].

Chen, Haiyan ;

Li, Xuezhi ;

Yu, Shaoyang ;

Qin, Yuqi ;

Qu, Yinbo ;

Zhao, Jian .

GLOBAL CHANGE BIOLOGY BIOENERGY, 2021, 13 (04) :665-678

[6] Nitrogen and Sulfur Self-Doped Activated Carbon Directly Derived from Elm Flower for High-Performance Supercapacitors [J].

Chen, Hui ;

Yu, Feng ;

Wang, Gang ;

Chen, Long ;

Dai, Bin ;

Peng, Shanglong .

ACS OMEGA, 2018, 3 (04) :4724-4732

[7] Insights into interfacial interaction mechanism of dyes sorption on a novel hydrochar: Experimental and DFT study [J].

Cheng, Long ;

Ji, Yuanhui ;

Liu, Xiaomin .

CHEMICAL ENGINEERING SCIENCE, 2021, 233

[8] Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li-O2 battery [J].

Chokradjaroen, Chayanaphat ;

Watanabe, Hiroko ;

Ishii, Takahiro ;

Ishizaki, Takahiro .

SCIENTIFIC REPORTS, 2021, 11 (01)

[9] ACIDOGENIC FERMENTATION OF LIGNOCELLULOSE-ACID YIELD AND CONVERSION OF COMPONENTS [J].

DATTA, R .

BIOTECHNOLOGY AND BIOENGINEERING, 1981, 23 (09) :2167-2170

[10] A simple approach making acetylene black electrocatalytically active for flexible rechargeable zinc-air batteries [J].

Deng, Jie ;

Wang, Lei ;

Jin, Fangming ;

Hu, Yun Hang .

JOURNAL OF MATERIALS CHEMISTRY A, 2021, 9 (18) :11145-11150

← 1 2 3 4 5 6 7 →