Article
Chemistry, Physical
Jincy Parayangattil Jyothibasu, Ming-Zhu Chen, You-Ching Tien, Chi-Ching Kuo, Erh-Chiang Chen, Yi-Chun Lin, Tai-Chin Chiang, Rong-Ho Lee
Summary: In this study, V2O5/f-CNT/PPy composite films were prepared and evaluated as freestanding negative electrodes of supercapacitors. The composite electrode exhibited high areal capacitance and good cycling stability, attributed to the synergy between f-CNT with high conductivity and V2O5 and PPy with high-energy densities.
Article
Engineering, Environmental
Jie Liu, Zhuang Wang, Qian Liu, Shuirong Li, Dechao Wang, Zhifeng Zheng
Summary: This study reports a method for the fabrication of freestanding and thick supercapacitor electrodes using a one-step electrochemical deposition on carbon foam. The use of polydopamine effectively controls the stacking of polypyrrole, while the hierarchical pore structures in the carbon foam facilitate the infiltration of electrolyte. The composite electrode exhibits a capacitance of 1920 mF cm(-2) with a loading of 8.5 mg cm(-2) of the PPy/PDA coating. The assembled symmetric supercapacitor shows excellent capacitance and high energy density, with 100% capacitance retention after 10,000 charging/discharging cycles.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xianlong Jian, Hongbian Li, Hui Li, Yunxing Li, Yuanyuan Shang
Summary: The MoS2/rGO/CNT FSC displayed a high areal capacitance of 93.2 mF cm(-2) and an 85% capacitance retention rate after 5000 cycles, with no performance decay observed after 1000 cyclic bending. It offers a promising solution for wearable and portable electronics applications.
Article
Energy & Fuels
Daman Xu, Yingqi Heng, Xiang Qin, Dongying Hu
Summary: In this study, the key materials for cellulose-based supercapacitors were successfully fabricated using natural and renewable cellulose as substrates. These materials exhibited excellent electrochemical performance and provide insights for the development of cellulose membrane-based energy storage materials.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Qi Zhang, Dong Liu, Haiyan Pei, Wei Pan, Yingliang Liu, Shengang Xu, Shaokui Cao
Summary: In this work, a chitosan-viscose nonwoven fabric (CVF) was reconstructed using the high swelling property of chitosan, resulting in a flexible conductive substrate with a high specific surface area for supercapacitors. Multi-walled carbon nanotubes (MWCNTs) were coated on the surface of crosslinked chitosan-viscose nonwoven fabric (c-CVF) to provide a conductive framework, and polypyrrole (PPy) was deposited on this substrate through in-situ interfacial polymerization. The optimized composite electrode exhibited high electrical conductivity and specific capacitance, as well as flexibility and good rate capability. When used in a quasi-solid-state symmetric supercapacitor, the composite fabric electrodes achieved a high areal specific capacitance and energy density. This work presents an effective approach for developing high-performance flexible conductive substrates for supercapacitors.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Paper & Wood
Yang Zhan, Yang Hu, Yu Chen, Quanling Yang, Zhuqun Shi, Chuanxi Xiong
Summary: Nanocellulose has become one of the most attractive matrix materials for flexible supercapacitors, and electrode materials with high capacitance and mechanical flexibility were developed through the in-situ synthesis of polypyrrole. The resulting nanocellulose/carbon nanotube/polypyrrole hydrogels showed promising performance in the field of flexible solid-state supercapacitors.
Article
Electrochemistry
Wenlong Luo, Yue Sun, Yongqin Han, Jianxu Ding, Tingxi Li, Chunping Hou, Yong Ma
Summary: MXene/polypyrrole (M-PPy) composite films were fabricated by vacuum-assisted suction filtration, and the optimized M-PPy3 exhibited high capacitance and excellent cycling performance. The flexible M-PPy3//MnO2 asymmetric supercapacitor showed high capacitance retention even after 6000 charge/discharge tests, demonstrating remarkable energy storage capacity. This study provides a better electrode structure for MXene and demonstrates its application in flexible wearable devices.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Rajendran Ramachandran, Yu Wang, Sundaram Chandrasekaran, Minzhang Li, Anxin Luo, Zong-Xiang Xu, Fei Wang
Summary: This study reports a solid-state symmetric supercapacitor based on the intercalation of molybdenum disulfide (MoS2) into Siloxene heterostructure, which shows high charge storage performance and cyclic stability. The Siloxene@MoS2 heterostructure is considered a promising candidate for high-performance supercapacitors and provides a new strategy for the design of future energy storage devices.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Physical
Fuquan Ma, Ling Li, Congying Jia, Xuexia He, Qi Li, Jie Sun, Ruibin Jiang, Zhibin Lei, Zong-Huai Liu
Summary: All-solid-state Ti3C2Tx neutral symmetric fiber supercapacitors (PVA EGHG Ti3C2Tx FSCs) with high energy density and wide temperature range were fabricated using polyvinyl alcohol (PVA)-ethylene glycol hydrogel (EGHG)-sodium perchlorate (NaClO4) as electrolyte and separator, and Ti3C2Tx fiber as electrodes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Paper & Wood
Jincy Parayangattil Jyothibasu, Ruei-Hong Wang, Kenneth Ong, Juping Hillary Lin Ong, Rong-Ho Lee
Summary: Nanostructured manganese dioxide (MnO2) was homogeneously deposited on a regenerated cellulose/functionalized CNT (f-CNT) matrix through a direct redox reaction between potassium permanganate and carbon nanotubes (CNTs) in an acidic medium. The resulting cellulose/f-CNT/MnO2 composite films showed outstanding electrochemical performance as freestanding electrodes for supercapacitors, with a maximal areal capacitance of 7956 mF cm(-2) achieved for a high MnO2 content composite. The symmetric supercapacitor assembled using the cellulose/f-CNT/MnO2 composite film exhibited high capacitance, energy density, and power density. The simple and environmentally friendly synthetic procedure can be readily scaled up for bulk synthesis.
Article
Engineering, Environmental
Tolendra Kshetri, Debarani Devi Khumujam, Thangjam Ibomcha Singh, Young Sun Lee, Nam Hoon Kim, Joong Hee Lee
Summary: This study reports the rational design of multi-component hybrid electrodes on a flexible and conductive matrix for high-performance flexible wearable hybrid supercapacitors. The electrodes exhibit high specific surface area, wettability, and conductivity, resulting in excellent electrochemical performance and mechanical flexibility. The fabricated hybrid supercapacitors demonstrate high energy density and long-term stability, making them suitable as power sources for various wearable devices.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Huanjun Chang, Longfei Zhang, Shaoyi Lyu, Siqun Wang
Summary: Researchers have prepared MoS2-SWCNT/CNF supercapacitors with excellent electrochemical performance and high flexibility, which can be applied in portable electronic devices and flexible devices.
Article
Chemistry, Physical
Yujuan Cao, Ning Wu, Fan Yang, Meng Yang, Tingting Zhang, Hao Guo, Wu Yang
Summary: This study successfully synthesized NiCo-MOF-74/T-PPy-m composite materials with different amounts of polypyrrole nanotubes. The NiCo-MOF-74(1)/T-PPy-10 composite exhibited the highest specific capacitance, excellent cyclic stability, and good rate performance. The interwoven structure enhanced the conductivity of the composite and alleviated stress changes caused by charge/discharge cycles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Energy & Fuels
Akanksha Agarwal, Sutripto Majumder, Babasaheb R. Sankapal
Summary: In this study, multi-walled carbon nanotubes decorated by Ni3P2O8 nanodots (Ni3P2O8/ MWCNT) were synthesized on a flexible substrate for supercapacitor application. The designed composite exhibited synergistic effects, with Ni3P2O8 nanodots contributing significantly to high-performance energy storage while MWCNT acted as a conductive and mechanical support for Ni3P2O8 growth. The corresponding flexible all-solid-state symmetric supercapacitor achieved a maximum specific energy of 72.3 Wh kg-1 and a power density of 6.4 kW kg-1 across a voltage window of 1.8 V, demonstrating promising potential for enhanced flexible energy storage.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Songjie Wang, Yongyin Liang, Wenchen Zhuo, Hang Lei, Muhammad Sufyan Javed, Botian Liu, Zilong Wang, Wenjie Mai
Summary: A high mass loading and freestanding CNT@PPy electrode was fabricated, demonstrating superior areal capacitance and improved mechanical properties, leading to enhanced performance for supercapacitors.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Materials Science, Paper & Wood
Jincy Parayangattil Jyothibasu, Da-Wei Kuo, Rong-Ho Lee
Article
Chemistry, Multidisciplinary
Jincy Parayangattil Jyothibasu, Ming-Zhu Chen, Rong-Ho Lee
Article
Polymer Science
Sheng-Kai Tseng, Ruei-Hong Wang, Jiun-Liang Wu, Jincy Parayangattil Jyothibasu, Tzong-Liu Wang, Che-Yi Chu, Rong-Ho Lee
Article
Materials Science, Paper & Wood
Jincy Parayangattil Jyothibasu, Ruei-Hong Wang, Kenneth Ong, Juping Hillary Lin Ong, Rong-Ho Lee
Summary: Nanostructured manganese dioxide (MnO2) was homogeneously deposited on a regenerated cellulose/functionalized CNT (f-CNT) matrix through a direct redox reaction between potassium permanganate and carbon nanotubes (CNTs) in an acidic medium. The resulting cellulose/f-CNT/MnO2 composite films showed outstanding electrochemical performance as freestanding electrodes for supercapacitors, with a maximal areal capacitance of 7956 mF cm(-2) achieved for a high MnO2 content composite. The symmetric supercapacitor assembled using the cellulose/f-CNT/MnO2 composite film exhibited high capacitance, energy density, and power density. The simple and environmentally friendly synthetic procedure can be readily scaled up for bulk synthesis.
Article
Chemistry, Physical
Jincy Parayangattil Jyothibasu, Ming-Zhu Chen, You-Ching Tien, Chi-Ching Kuo, Erh-Chiang Chen, Yi-Chun Lin, Tai-Chin Chiang, Rong-Ho Lee
Summary: In this study, V2O5/f-CNT/PPy composite films were prepared and evaluated as freestanding negative electrodes of supercapacitors. The composite electrode exhibited high areal capacitance and good cycling stability, attributed to the synergy between f-CNT with high conductivity and V2O5 and PPy with high-energy densities.
Article
Materials Science, Paper & Wood
Jincy Parayangattil Jyothibasu, Ruei-Hong Wang, Kenneth Ong, Juping Hillary Lin Ong, Rong-Ho Lee
Summary: This paper presents a simple, cost-effective, and environmentally friendly method for synthesizing cellulose/functionalized carbon nanotube/Fe2O3 composite films and examines their performance in supercapacitors. The negative electrode prepared using this method exhibits outstanding capacitance values, advancing the development of sustainable supercapacitors.
Article
Electrochemistry
Nimisha Girija, Surya Suma Kuttan, Jincy Parayangattil Jyothibasu, Rong-Ho Lee, Balagopal N. Nair, Abdul Azeez Peer Mohamed, Sudha J. Devaki, Unnikrishnan Nair Saraswathy Hareesh
Summary: This study successfully enhanced the electrochemical performance of nickel cobaltite by incorporating conductive silver nanoparticles, resulting in improved stability of the material in an alkaline medium. The hybrid supercapacitor device composed of nickel cobaltite/silver nanoparticles//activated carbon exhibited high energy density. Furthermore, the composite electrode with optimized silver loading showed increased plasmonic capacitance under UV illumination.
ELECTROCHIMICA ACTA
(2022)
Review
Polymer Science
Jincy Parayangattil Jyothibasu, Ruei-Hong Wang, You-Ching Tien, Chi-Ching Kuo, Rong-Ho Lee
Summary: Supercapacitors are promising for electric vehicles, portable electronics, and grid frequency modulation due to their rapid charging and discharging, high power densities, and excellent cycling life stabilities. Lignin, a renewable biomass material with electroactive redox characteristics, has been investigated as an electrode material and redox additive for supercapacitors, showing potential for environmentally friendly and economically beneficial applications.
Article
Chemistry, Physical
Jincy Parayangattil Jyothibasu, Rong-Ho Lee
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
