Article
Materials Science, Paper & Wood
Lingling Fan, Wenfeng Zheng, Yuan Yang, Yan Sun, Songlin Peng, Jie Xu, Guangfu Yin
Summary: Bacterial cellulose/polypyrrole nanofibrous composites have been extensively studied for supercapacitors due to their large specific surface area and excellent tensile strength. However, the structural pulverization of polypyrrole leads to inferior cycling stability. In this study, nanofibrous composite membranes of MXene, PPy, and oxidized bacterial cellulose were prepared for flexible supercapacitor electrodes, showing enhanced performance.
Article
Chemistry, Physical
Qian Rong, Chao Yuwen, Yingkai Liu, Yuanrong Liu, Chunyang Wang, Yang Wang, Ding Zhang, Zhen Wen
Summary: Developing highly robust and efficient electrode materials is crucial for increasing the energy density of supercapacitors. This study presents an efficient catalyst with monodispersed Mn single-atoms embedded in carbon nanotubes (Mn-CNTs), which enhances the electrode performance of supercapacitors. The introduction of Mn single-atoms leads to higher specific capacitance and energy density.
Article
Chemistry, Physical
Kwang Se Lee, Jung Yong Kim, Jongwook Park, Jang Myoun Ko, Sharon Mugobera
Summary: This study investigated the application of nano-biocomposite electrodes in electrochemical supercapacitors by synthesizing PPy/CNT-E.coli electrodes. The PPy/CNT-E.coli electrode exhibited high specific capacitance and stability, attributed to the influence of pyrrole monomers and E. coli bacteria on the surface of CNT materials.
Article
Chemistry, Physical
Quanlu Wang, Changxing Han, Guoxiang Tang, Lei Liu, Tingxi Li, Yongqin Han
Summary: Polymerization of polypyrrole (PPy) on the surface of ZnCo-MOF columnar structure is achieved using (NH4)2S2O8 and AgNO3 as co-oxidants. The resulting ternary composite material, ZnCo-MOF/PPy/Ag2O, demonstrates successful PPy polymerization, multifunctional properties of ARS, and catalytic oxidation of Ag. The MPA/Ag2O-4 electrode exhibits excellent specific capacitance, and an asymmetric supercapacitor assembled with MPA/Ag2O-4 and activated carbon shows high area capacitance and wide potential window. The composite material also displays outstanding cycling stability and flexibility, making it a promising candidate for flexible wearable and portable electronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yanfang Xu, Yushan Yan, Weibang Lu, Shridhar Yarlagadda, Guangbiao Xu
Summary: This study successfully prepared an electrode with excellent formability and improved the performance of fiber-shaped supercapacitors (FSS) by adjusting the electrochemical reaction times. The obtained FSS showed high capacitance and energy density, with excellent cycling stability and mechanical stability.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Dongxu He, Fanhao Tang, Hao Jiang, Wisit Hirunpinyopas, Tugrul Cetinkaya, Zheling Li
Summary: A novel graphene/graphite/PPy composite fiber with vertically aligned channels was fabricated, providing fast diffusion pathways for ions and improving electrochemical performance for higher utilization of active materials. By controlling the deposition time of PPy, the trade-off relationship between PPy thickness and channel width was discussed to enhance energy and power density of the supercapacitor. This study may guide the optimization of pore width and wall thickness in three-dimensional electrode design.
ELECTROCHIMICA ACTA
(2021)
Article
Electrochemistry
Le Quoc Bao, Thanh-Huong Nguyen, Haojie Fei, Irina Sapurina, Fahanwi Asabuwa Ngwabebhoh, Constantin Bubulinca, Lukas Munster, Eva Domincova Bergerova, Anezka Lengalova, Hao Jiang, Tran Trong Dao, Nikola Bugarova, Maria Omastova, Natalia E. Kazantseva, Petr Saha
Summary: Metal-organic frameworks (MOFs) have attracted attention as potential supercapacitor electrode materials. In this study, Zn-MOF was synthesized and composited with rGO as electrode material, with PANI added to improve performance. The best specific capacitance was obtained from the rGO/Zn-MOF@PANI sample due to its large surface area and high pore sizes.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Xiuhang Chen, Fenghua Su, Qiang Zhou, Jianfang Sun
Summary: In this study, a flexible asymmetric supercapacitor was assembled using PPy@Ti3C2Tx composite material as the positive electrode and Ti3C2Tx as the negative electrode without any binder. The composite electrode exhibited excellent conductivity and porous structure, facilitating charge transfer and ions diffusion, resulting in improved utilization of active materials. The all-solid-state asymmetric supercapacitor showed high energy density, large operating voltage, and outstanding cycling stability, providing a promising approach for flexible electronics.
SURFACES AND INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Syedah Afsheen Zahra, Babak Anasori, Muhammad Z. Iqbal, Florent Ravaux, Mohammednoor Al Tarawneh, Syed Rizwan
Summary: The study reports V2CTx MXene and multiwall carbon nanotube composites as electrode materials for hybrid energy storage devices, showing excellent electrochemical performance and good cyclic stability.
Article
Engineering, Electrical & Electronic
Jason D. Orlando, Ravi M. A. P. Lima, Li Li, Stefanie A. Sydlik, Helinando P. de Oliveira
Summary: In this study, different carbon derivatives were chemically modified via nitrogen doping to optimize the performance of supercapacitors. The results showed that all the nitrogen-doped carbon derivatives outperformed their undoped counterparts in terms of specific capacitance, energy density, and power density.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Analytical
Lin Tong, Chunxia Wu, Junxian Hou, Zhixiao Zhang, Jiayuan Yan, Guangshuo Wang, Zongqi Li, Hongwei Che, Zhenguo Xing, Xiaoliang Zhang
Summary: In this work, hollow mesoporous PPy microspheres were prepared as a support structure, and hollow mesoporous PPy@MnO2 composites were successfully synthesized. The unique heterogeneous structure of the composite enhances its stability, electron transport, and active sites. The synthesized electrode exhibits outstanding electrochemical properties and the supercapacitor constructed using this material achieves a high energy density.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Chao Sun, Li Sun, Kaifeng Fan, Yan Shi, Jialin Gu, Yifan Lin, Jingjing Hu, Yihe Zhang
Summary: Co9S8 and transition metal hydroxides are both potential pseudocapacitive electrode materials for supercapacitors due to their high specific capacitance and redox activity. In this study, a composite electrode material, Co9S8-aCNT-NiCoLDH, was developed by combining Co9S8 and NiCoLDH with acidified carbon nanotubes (aCNTs), demonstrating high specific capacitance and rate performance. The asymmetric supercapacitors fabricated using Co9S8-aCNT-NiCoLDH as the positive material exhibited attractive energy density and power density, confirming its excellent electrochemical performance.
DALTON TRANSACTIONS
(2021)
Article
Energy & Fuels
Tingting Feng, Haoyu Jiao, Huilan Li, Junchao Wang, Shu Zhang, Mengqiang Wu
Summary: In this study, NiCo2S4 nanosheets/CNT composites were successfully prepared and used as electrodes in a flexible supercapacitor. The composites exhibited excellent specific capacity, rate characteristic, cycle performance, and energy density.
Article
Energy & Fuels
Anjana Ramesh Peringath, Mohammad A. H. Bayan, Mustehsan Beg, Amrita Jain, Filippo Pierini, Nikolaj Gadegaard, Richard Hogg, Libu Manjakkal
Summary: This study developed two conducting polymers through a low-cost synthesis approach and spin coating method, and prepared corresponding supercapacitors with high electrochemical performance. These supercapacitors meet the demand for high-performance power sources in portable electronics.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Yuxiang Wen, Yanpeng Liu, Ting Wang, Zilei Wang, Yanan Zhang, Xiaogang Wu, Xueting Chen, Shanglong Peng, Deyan He
Summary: The study presents a Ni-Co-S material with hollow nanospheres covered by interconnected nanosheets, synthesized through an electro-deposition method. This material shows excellent rate performance, superior electrical conductivity, and outstanding cycling stability with nearly constant specific capacitance at high mass loading, enabling the assembly of an asymmetric supercapacitor with high energy density. The findings provide a promising route towards practical applications at practical levels of mass loading.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Electrochemistry
F. A. Amaral, R. M. Sousa, L. C. T. Morais, R. G. Rocha, I. O. Campos, W. S. Fagundes, C. N. P. Fonseca, S. C. Canobre
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2015)
Article
Materials Science, Multidisciplinary
Fabio Augusto Amaral, Laiane Kalita Santana, Iury Oliveira Campos, Welique Silva Fagundes, Farlon Felipe Silva Xavier, Sheila Cristina Canobre
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2015)
Article
Chemistry, Multidisciplinary
Elaine Angelica Mundim Ribeiro, Fulvio Rafael Bento de Souza, Fabio Augusto do Amaral, Guimes Rodrigues Filho, Raquel Maria Ferreira de Sousa, Julia Graciele Vieira, Talita Ferreira de Rezende Costa, Jose Pedro Thompson Junior, Rosana Maria Nascimento de Assuncao, Sheila Cristina Canobre
Article
Polymer Science
E. A. M. Ribeiro, G. Rodrigues Filho, N. S. Rozeno, J. M. B. A. Nogueira, M. A. Resende, J. P. Thompson Junior, J. G. Vieira, S. C. Canobre, F. A. Amaral
EXPRESS POLYMER LETTERS
(2017)
Article
Chemistry, Analytical
Luiz Andre Juvencio Silva, Weberson Pereira da Silva, Jason G. Giuliani, Sheila Cristina Canobre, Carlos D. Garcia, Rodrigo Alejandro Abarza Munoz, Eduardo Mathias Richter
Article
Chemistry, Physical
Silmara Neves, Sheila C. Canobre, Rafael S. Oliveira, Carla Polo Fonseca
JOURNAL OF POWER SOURCES
(2009)
Article
Chemistry, Multidisciplinary
Farlon F. S. Xavier, Carlos G. O. Bruziquesi, Welique S. Fagundes, Elaine Y. Matsubara, Jose M. Rosolen, Adilson C. Silva, Sheila C. Canobre, Fabio A. Amaral
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2019)
Article
Materials Science, Multidisciplinary
Sheila C. Canobre, Nerilso Bocchi, Romeu C. Rocha-Filho, Sonia R. Biaggio
MATERIALS CHEMISTRY AND PHYSICS
(2013)
Article
Materials Science, Multidisciplinary
Fabio Augusto do Amaral, Erica Oliveira Machado, Leonardo Luis de Freitas, Laiane Kalita Santana, Sheila Cristina Canobre
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2014)
Article
Materials Science, Multidisciplinary
F. A. Amaral, R. F. Guerra, L. K. Santana, S. C. Canobre
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2014)
Article
Electrochemistry
Jian F. S. Pereira, Pedro H. S. Borges, Gabriel M. Moura, Rogerio V. Gelamo, Edson Nossol, Sheila C. Canobre, Eduardo M. Richter, Rodrigo A. A. Munoz
ELECTROCHEMISTRY COMMUNICATIONS
(2019)
Article
Engineering, Mechanical
R. P. Garcia, S. C. Canobre, H. L. Costa
TRIBOLOGY INTERNATIONAL
(2020)
Article
Multidisciplinary Sciences
Josiane S. Calisto, Ingrid S. Pacheco, Leonardo L. Freitas, Laiane K. Santana, Welique S. Fagundes, Fabio A. Amaral, Sheila C. Canobre
Article
Chemistry, Multidisciplinary
Maraina S. Medeiros, Adilson C. Goulart, Ingrid S. Pacheco, Fabio A. do Amaral, Sheila C. Canobre
PERIODICO TCHE QUIMICA
(2019)