Article
Chemistry, Multidisciplinary
Jiwoong Ham, Sangbaek Park, Nari Jeon
Summary: Composites of conductive polymers (CP) and metal oxides (MO) have been studied extensively in the past decade due to their unique electronic, electrochemical, catalytic, and mechanical properties. In this study, a novel method for synthesizing composite films of polyaniline (PANI) and indium oxide (InOx) with high electrical conductivities was proposed. The composite films consisted of two phases with graded concentration: InOx with oxygen vacancies and PANI with partially protonated molecular units. The PANI-InOx composite films exhibited enhanced electrochemical activity and efficient ion diffusion due to the open interfacial regions between the InOx and PANI phases.
Article
Engineering, Electrical & Electronic
Boya Chang, Jiabei Luo, Jun Xia, Chuanyue Sun, Kerui Li, Yaogang Li, Qinghong Zhang, Hongzhi Wang, Chengyi Hou
Summary: Wearable monitoring devices are important for long-term signal monitoring of the human body. This study presents a conductive elastic composite electrode that has excellent tensile and stable electrical properties for bioelectric monitoring. The electrode has a stable open circuit potential and low impedance, as well as good wear and water resistance, making it suitable for long-term electrocardiogram (ECG) signal monitoring. Additionally, the integration of fiber electrodes with traditional clothing opens up new possibilities for wearable wireless ECG acquisition systems.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Chenlong Wang, Yi Chai, Xiaodong Wen, Yongjian Ai, He Zhao, Wanting Hu, Xiaoping Yang, Ming-Yu Ding, Xiaolu Shi, Qingfei Liu, Qionglin Liang
Summary: By utilizing a stretch-induced strategy, a new hybrid hydrogel with excellent stretchability and outstanding anisotropic conductivity has been fabricated. This hybrid hydrogel has been successfully applied as a therapeutic cardiac patch, promoting elongated cell morphology and stable directional transmission of electric signals.
ACS MATERIALS LETTERS
(2021)
Article
Engineering, Chemical
Weiwu Tang, Dagang Li, Xu Zhang, Fang Guo, Chang Cui, Meng Pan, Dongxiang Zhang, Jinying Li, Xiyan Xu
Summary: A hierarchical porous electrode material was successfully constructed for the efficient electrochemical extraction of uranium from aqueous solution. The prepared porous composite electrode, composed of melamine sponge, amidoxime, glutaroimide-dioxime, and hydroxylated multi-walled carbon nanotube, exhibited excellent electrochemical performance, hydrophilicity, and antimicrobial activity. The electrochemical extraction process achieved a maximum uranium extraction mass of 831.5 mg/g with considerable selectivity and cyclic elution performance. Characterization and DFT calculation confirmed the migration and diffusion of uranyl ions in the electrode's pore structure, followed by adsorption, electrosorption, and electrochemical reduction reactions involving amidoxime and glutaroimide-dioxime complexes with uranyl ions, with a stronger complexation effect observed for the latter.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Saba Ghafourisaleh, Georgi Popov, Markku Leskela, Matti Putkonen, Mikko Ritala
Summary: This study successfully deposited PEDOT films using oxidative molecular layer deposition (oMLD) technique with 3,4-ethylenedioxythiophene (EDOT) and rhenium pentachloride (ReCl5). The deposited films were transparent in the visible region and showed relatively high electrical conductivities.
Article
Electrochemistry
Xin Li, Jinmei Li, Peng Liu
Summary: Flexible electrodes with superior comprehensive electrochemical performance, including cycling stability, flexibility, capacitance retention, power density, and energy density, have been synthesized by grafting a conductive polymer, poly(1,5-diaminoanthraquinone) (PDAA), onto oxidized carbon cloth (OCC) via highly efficient solvothermal polymerization. The resulting robust PDAA grafted carbon cloth (OCC-PDAA) exhibits a capacitance of 386.3 mF cm-2, power density of 188.0 mW cm-2, and energy density of 34.4 mWh cm-2 at 0.50 mA cm-2, with capacitance retention of 99.1% and 96.5% after 10000 CV cycles and 180 degrees -bending for 300 cycles, respectively. This material shows great potential for practical applications in supercapacitors.
ELECTROCHIMICA ACTA
(2023)
Article
Nanoscience & Nanotechnology
Hui Liu, You Tao, Huijuan Sun, Tian-Xiong Wang, Zhisheng Peng, Jiyou Jin, Zhongpu Wang, Kang Peng, Haonan Wei, Yong Jun Li, Bao-Hang Han, Lianfeng Sun
Summary: In this study, polyaniline was successfully synthesized on flexible substrates and demonstrated excellent conductivity and reversible redox properties. This has promising applications in supercapacitors and ascorbic acid sensors.
Article
Materials Science, Multidisciplinary
Alexey Volkov, Alexander Ivanov, Anatoliy A. Vereshchagin, Julia Novoselova, Elena G. Tolstopjatova, Veniamin V. Kondratiev
Summary: In this study, a single-step electrochemical deposition method for PEDOT/MoS2 composite materials was proposed and the performance of the materials in water-based electrolytes was investigated. The synthesized composites exhibited both capacitive and redox pseudocapacitive responses, making them potential electrode materials for supercapacitors.
Article
Chemistry, Analytical
Umphan Ngoensawat, Thanarath Pisuchpen, Yongsak Sritana-anant, Nadnudda Rodthongkum, Voravee P. Hoven
Summary: Conductive composite fibers consisting of PEDOT and AgNPs were fabricated using emulsion electrospinning and heat treatment. These fibers exhibited good electrochemical response when deposited on a screen-printed carbon electrode and were capable of simultaneous detection of heavy metal ions in a mixture.
Article
Engineering, Manufacturing
Guo-Dong Liu, Yu-Lan Zhu, Sheng-Gui Liu, Chao-Jiang Li
Summary: Using a conductive-material-filled electrode can enhance sidewall insulation performance, leading to better durability and sidewall insulation in micro electrochemical machining processes.
ADVANCES IN MANUFACTURING
(2023)
Article
Polymer Science
Sarka Tumova, Romana Maleckova, Lubomir Kubac, Jiri Akrman, Vojtech Enev, Lukas Kalina, Eva Vojtkova, Michaela Peskova, Jan Vitecek, Martin Vala, Martin Weiter
Summary: A newly developed conductive polymer composite, PEDOT:DBSA, was prepared and optimized for bioelectronic applications. The composite demonstrated superior biocompatibility and electrical characteristics comparable to PEDOT:PSS. The cross-linking processes induced by GOPS resulted in excellent long-term stability of PEDOT:DBSA thin films in aqueous solutions. The electrical conductivity of the thin films was significantly improved by sulfuric acid posttreatment, making it suitable for bioelectronic applications requiring long-term contact with living organisms.
Article
Chemistry, Analytical
Jacqueline Marques Petroni, Matheus Meneguel Neves, Natalia Canhete de Moraes, Rodrigo Amorim Bezerra da Silva, Valdir Souza Ferreira, Bruno Gabriel Lucca
Summary: A novel electrically conductive thermoplastic material G/ABS composed of graphite/acrylonitrile butadiene styrene was reported for the first time, showing improved performance in 3D printing-based electrochemical sensors. The G/ABS electrodes demonstrated lower charge transfer resistance, higher electroactive area, and higher peak currents compared to carbon black/polylactic acid electrodes. The G/ABS sensor exhibited satisfactory repeatability, reproducibility, and stability, making it a promising material for electroanalytical applications.
ANALYTICA CHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Byeong-Yong Jeong, Sojeong Lee, Hyun Ho Shin, Sooncheol Kwon, Sung Hoon Kim, Ji Hyun Ryu, Seok Min Yoon
Summary: Conductive rhenium oxide-polytetrahydrofuran (ReOx-PTHF) has high electrical conductivity and self-healing properties, and can be applied to self-repairing electronic circuits. Its self-healing properties and high electrical conductivity prevent severe loss of electrical conductivity in flexible devices. Additionally, it is not swellable and decomposable in aqueous and saltwater environments.
ACS MATERIALS LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Bingjian Li, Shi Liu, Haicun Yang, Ran Wang, Xixi Xu, Yinjie Zhou, Yun Zhang, Dan Yang, Jinchun Li
Summary: The structure and surface morphology of electrode materials greatly affect the electrochemical performance in supercapacitors. In this study, a self-supporting, flexible layer of continuously reinforced carbon nanotube woven film (CNWF) was developed using the FCCVD technique. A series of flexible CNWF/PANI composite films were then produced by forming polyaniline (PANI) in the conductive network of CNWF through CVEP in various aqueous electrolytes. The CNWF/PANI1-15C composite electrode displayed a distinct coral-like PANI layer with a well-defined sharp nanoprotuberance structure, a 48% doping degree, and a quick reversible pseudocapacitive storage mechanism.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Junpeng Xu, Chih-Yu Fu, Yu-Liang Tsai, Chui-Wei Wong, Shan-hui Hsu
Summary: Conductive thin films with thermoresponsive, hydrophilic, strain sensing, and biocompatible properties were successfully synthesized in this study. The mechanical properties of the thin films were significantly enhanced by heat treatment, and they showed great potential for applications in neural stem cell culture.
