Article
Chemistry, Inorganic & Nuclear
Yan Chun Sun, Chun Yu Sun, Zhong Xiang Chen, Peng Wang, Hai Tao Wang, Ming Zhu Yao, Song Wu, Ping Xu
Summary: This study demonstrates the growth and morphology control of Cu and Cu2O using a conducting polymer polyaniline (PANI) membrane as the working electrode. The oxidation state of the copper species electrodeposited on PANI surfaces can be manipulated by changing the copper precursors, leading to the formation of either zero-valent copper or cuprous oxide. This method has potential applications in the synthesis of other materials.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Physical
Anjana Baby, Sachin Sunny, J. Vigneshwaran, Sibi Abraham, Sujin Jose, Waseem Sharaf Saeed, Mohan Reddy Pallavolu, Jayesh Cherusseri, Sreeja Puthenveetil Balakrishnan
Summary: Electronically conducting polymers (ECPs)/carbon nanomaterial-based polyaniline electrodes have attracted significant interest in the field of supercapacitors due to their exceptional electrochemical properties. In this study, a PANI-grafted graphene oxide (GO)-azopyridine (Azo) nanocomposite was synthesized and utilized as electrodes for fabricating supercapacitors. The nanocomposite exhibited a high gravimetric capacitance of 426 F g(-1) and excellent cycling stability. An asymmetric supercapacitor constructed with PANI/GO-Azo as the positive electrode delivered a high energy density of 12.45 W h kg(-1) with a power density of 274.9 W kg(-1). These findings highlight the promising potential of the PANI/GO-Azo nanocomposite electrode for next-generation supercapacitors.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Materials Science, Ceramics
P. Sakthivel, G. Anandha Babu, M. Karuppiah, S. Asaithambi, V Balaji, Muthu Senthil Pandian, P. Ramasamy, Mustafa K. A. Mohammed, N. Navaneethan, G. Ravi
Summary: This research reports the synthesis of a hierarchical CNT anchored MoS2-Bi2S3 nanocomposite, which acts as a highly effective electrode in alkaline electrolyte. The hierarchical structure and synergetic effect of CNT and composites provide improved conductivity and stability, resulting in a specific capacitance of 1338 F/g, columbic efficiency of 99.5% over 10000 cycles, and long-term stability.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Yang Zhang, Zejia Bi, Yunxia Liang, Weiwei Zuo, Guiyin Xu, Meifang Zhu
Summary: In this study, a porous graphene/carbon nanotube/tin oxide (PP-GCS) fiber was successfully fabricated, showing excellent electrochemical performance and high line capacity. This work provides a promising method for the production of flexible power devices.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Mohammad Bagher Askari, Parisa Salarizadeh, Majid Seifi, Mohammad Hassan Ramezan Zadeh, Antonio Di Bartolomeo
Summary: Binary transition metal oxides (BTMOs) show potential for supercapacitor applications due to high theoretical capacity, with zinc and iron-based BTMOs being investigated in this study. Nano-engineering ZnFe2O4-rGO improved electrode performance, increasing capacitance and cyclic stability for energy storage applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Michal Blaha, Milan Bousa, Vaclav Vales, Otakar Frank, Martin Kalbac
Summary: The study successfully synthesized a graphene/polyaniline heterostructure with excellent electrochemical performance, which can be used as electrode materials for supercapacitors. After cyclic testing, the material showed a capacitance retention rate of +/-1%, one order of magnitude higher than the capacitance of pristine graphene.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Electrochemistry
Sabina Yeasmin, Simi Talukdar, Debajyoti Mahanta
Summary: Graphitic layer of carbon deposited on cellulose paper via pencil drawing, enhanced by polyaniline nanofibers, results in all-solid-state symmetric supercapacitors with outstanding performance, exhibiting specific capacitance of 28.37 F g(-1) and excellent cyclic stability.
ELECTROCHIMICA ACTA
(2021)
Article
Multidisciplinary Sciences
Tamil Selvi Gopal, Khalid E. Alzahrani, Abdulaziz K. Assaifan, Hamad Albrithen, Abdullah Alodhayb, Muthumareeswaran Muthuramamoorthy, Saravanan Pandiaraj, Andrews Nirmala Grace
Summary: This study reports the use of a ternary composite MG-Cu2O for non-enzymatic glucose sensing. The MG-Cu2O composite shows high defect density and small crystalline size, leading to enhanced electrocatalytic activity and good sensing performance for glucose level.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Ananya Chowdhury, Sudipta Biswas, Debabrata Mandal, Amreesh Chandra
Summary: A novel strategy of incorporating conducting additive is proposed to enhance the performance of NaMnPO4-based Na-ion supercapacitors. It is observed that forming a composite with a conducting polymer leads to a nearly two-fold increment in the specific capacitance of the Na-ion based system. This improvement is attributed to higher conductivity, fast Faradaic response, and greater number of ion transport channels.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Sara Ramandi, Mohammad H. Entezari
Summary: This study reports the preparation of a Graphene@ZIF-67/polyaniline nanotube (PANI-NT) composite using stirring and sonication at room temperature. The composite exhibits high specific surface area and specific capacitance, as well as good reversibility and cyclic stability.
JOURNAL OF POWER SOURCES
(2022)
Review
Chemistry, Analytical
Himadri Tanaya Das, Swapnamoy Dutta, Tamilarasan Elango Balaji, Nigamananda Das, Payaswini Das, Neelu Dheer, Rajni Kanojia, Preety Ahuja, Sanjeev Kumar Ujjain
Summary: Flexible supercapacitors have attracted great attention due to their outstanding electrochemical performance, long cyclability, and mechanical flexibility. Carbon nanotubes are potential candidates for flexible supercapacitor electrodes, given their mechanical toughness, high electrical conductivity, and assemblage adaptability. This review summarizes the various assemblies of carbon nanotube structures and their applications in flexible supercapacitor devices, as well as discusses the electrochemical performance and additional properties of fabricated flexible devices.
Review
Engineering, Chemical
Bin Qi, Kang Ren, Yueqiang Lin, Su Zhang, Tong Wei, Zhuangjun Fan
Summary: Graphene is a competitive electrode material for supercapacitors due to its unique structure, and rational design of layered-stacking structures can effectively improve electrochemical kinetics. This has huge potential for developing advanced electrode materials.
Article
Chemistry, Analytical
Amarnath Chellachamy Anbalagan, Geetha Venkatachalam, Mukesh Doble, Shilpa N. Sawant
Summary: This study evaluated an organically modified polyaniline derivative (PANI-der) as an electrode material for physio-logical fluids operatable supercapacitors. PANI-der displayed high specific capacitance and energy density in physiological fluids and culture media, making it a potential candidate for integration with in vivo medical devices.
MICROCHEMICAL JOURNAL
(2022)
Article
Materials Science, Composites
Yanmin Wang, Yuansong Xiao, Xueliang Wu, Tingxi Li, Yong Ma
Summary: In this study, MWCNT/PANI composite and MWCNT-COOH/PANI composite were prepared via in situ chemical oxidative polymerization method. The crystallinity, chemical structure, and morphology of the composites were investigated. The electrochemical performance evaluation demonstrated that the MWCNT-COOH/PANI composite with 15% MWCNT-COOH exhibited the best electrochemical properties.
ADVANCED COMPOSITE MATERIALS
(2023)
Article
Electrochemistry
Yan Yu, Aizhen Xu, Yu Zhang, Zhiyi Zhao, Shuyan Ye, Yujun Qin
Summary: In this study, a hierarchical graphene/polyaniline (PANI) supercapacitor electrode composite was constructed using a two-step PANI deposition approach. The synthesized graphene oxide (GO)/PANI colloid was further reduced to form the hydrated rGO/PANI films on carbon cloth (CC) substrates. The resulting rGO/PANI/CC films were then used as electrodes to electrodeposit PANI on the subsurface/surface, resulting in rGO/PANI@PANI/CC electrodes with PANI distribution gradient. The prepared electrode exhibited excellent capacitance of 1131.6 F g(-1) at 2 A g(-1) with a high retention of 87.7% at 40 A g(-1), and a large energy density of 52.6 Wh kg(-1) in the all-solid-state symmetric device.
ELECTROCHIMICA ACTA
(2023)
