Article
Polymer Science
Tieli Zhou, Jingxi Ma, Jianxin He, Zhenxiang Liu, Liu Yang, Jumin Hou, Maocheng Sun, Shuqing Wu, Weidong Ruan
Summary: Micro/nanostructured PoPD thin films were synthesized via a templateless method using different inorganic/organic acids as dopants, resulting in different morphologies. These one-dimensional micro/nano-belt/rod structures were then used to fabricate humidity sensors, with PoPD doped with phosphate acid exhibiting the highest sensitivity and fastest response and recovery time.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Madari Palliyalil Sidheekha, Geethu E. Rajendran, A. K. Shabeeba, Yahya A. Ismail
Summary: A novel faradaic supercapacitor electrode capable of sensing current was developed using chitosan/poly-o-toluidine composites. The composites, with semiconducting and highly electroactive properties, show efficient electrochemical reactions due to their agglomerated nano granular morphology. The study demonstrates that conducting polymers driven by electrochemical reactions, such as poly-o-toluidine, can function as current sensing supercapacitors by monitoring the consumed electrical energy during reactions.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Lijin Rajan, Madari Palliyalil Sidheekha, Aranhikkundan Shabeeba, Sruthy Chathinmaril Unnikrishnan, Yahya A. Ismail
Summary: Conducting polymers can sense the working ambient through their electrochemical reaction. By changing the applied current and chemical environment, the reactive sensing characteristics of different copolymers were verified and compared. The consumed electrical energy during the reaction was found to act as the sensing parameter.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Optics
R. K. Fakher Alfahed, Ahmed S. Al-Asadi, Mohammed F. Al-Mudhaffer, Hussain A. Badran
Summary: A network containing poly (O-toluidine) (POT) and LiCl in thin films was synthesized using a chemical reaction method. The study showed that the percentage of LiCl has a significant impact on the surface morphology of POT, confirming the potential applications of the fabricated networks in optoelectronics and energy storage areas through chemical analysis and optical performance testing.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Armando Ferreira, Joao Paulo Silva, Daniela M. Correia, Nelson Pereira, Marcio A. Correa, Senentxu Lanceros-Mendez, Filipe Vaz
Summary: This work presents multifunctional coatings prepared by Physical Vapor Deposition with Oblique Angle deposition with relative humidity sensing capability. The obtained Cr(N,O) thin films show an increasing amount of oxygen as the O2/N2 mixture flow increases, leading to a transition from chromium nitride to chromium oxide. The high electrical resistivity of the coating leads to high sensibility to relative humidity variations, making it suitable for relative humidity sensing applications.
Article
Chemistry, Analytical
Asuman Unal, A. Robert Hillman, Karl S. Ryder, Salih Cihangir
Summary: Polyaniline can be converted from its insulating form to its conductive form by applying an oxidising potential, allowing it to function as an ion-exchanger through electrostatic force. Copolymerization with o-toluidine at elevated pH values enhances the electrochemical properties of polyaniline.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Energy & Fuels
Hongqin Zhao, Ying Chen, Lei Zhao, Xiaoping Liang, Zhifeng Liu
Summary: In this study, NiO-based multi-color electrochromic films were prepared using hydro-thermal and electrodeposition methods. The composite film can achieve a variety of color changes in yellow, green, blue and dark brown. The study provides reference for the development of NiO multi-color electrochromic materials.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Engineering, Electrical & Electronic
H. Praveen, V. Girish Chandran
Summary: Poly (O-toluidine) (POT)-NiO nanocomposites with higher electrical and dielectric properties were synthesized through in-situ chemical polymerization. Different weight percentages of NiO were added, such as 25, 50, and 75%. The structure of POT was influenced by the deposition of NiO, resulting in changes in crystallinity and peak intensity. The composite materials of POT-NiO nanocomposites were analyzed using FTIR, showing absorption bands of benzenoid and quinoid groups of POT as well as the -O-H bending of NiO. The addition of 75% NiO improved the thermal stability of POT. The electrical conductivity and dielectric permittivity were enhanced by increasing temperature and dopant concentration, with conductivity ranging from 3.4 x 10(-5) to 1.4 S/cm and permittivity ranging from 1.52 to 8.41 F/m.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Electrochemistry
Wafa Aidli, Valentina Pifferi, Abdelmoneim Mars, Daniele Marinotto, Mariangela Longhi, Amedea Manfredi, Ahmed Hichem Hamzaoui, Luigi Falciola
Summary: A novel dual-mode sensor based on the in-situ coupling of electrochemical and fluorescence assay was developed for detecting o-toluidine and cholesterol. The sensor platform consisted of nitrogen doped graphene quantum dots, benzoquinone, and β-cyclodextrin. The platform exhibited low detection limits for both electrochemical and fluorescence signals, as well as good selectivity and storage stability. The sensor was successfully applied to detect cholesterol in processed cow milk, yielding satisfactory recovery rates.
ELECTROCHIMICA ACTA
(2023)
Article
Polymer Science
Jia-Wei Zhang, Ying Li
Summary: This study explores the electropolymerization of Poly(p-toluidine) onto stainless steel in an eco-friendly and moderate craft, finding that the PpT film provides more significant protection under low-temperature conditions in 3.5% sodium chloride solution.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Physics, Condensed Matter
Abdelwahab Hassan, Adel Ashery, Gomaa Khabiri
Summary: The electrical and dielectric characteristics of Poly(o-toluidine)/SiO2/p-Si metal oxide semiconductor (MOS) device were investigated in this study. Electrical parameters including barrier height, states density, ideality factor, and series resistance were found to change with temperature, while dielectric properties such as dielectric constant and dielectric loss varied with frequency. The activation energy of the MOS device was calculated as a function of frequency. Overall, the properties of the developed MOS device were dependent on temperature and frequency.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Multidisciplinary Sciences
Mohammad Sohail, Rizwan Ullah, Sana Ullah Khan, Salma Bilal, Muhammad Omer, Ihsan Ullah, Adnan
Summary: In this study, novel composite materials based on POT polymer were produced by emulsion polymerization and one pot blending techniques using tungsten (IV) oxide (WO2), cerium (IV) oxide (CeO2), and iron (III) oxide (Fe2O3). UV-Vis analysis confirmed various electronic transitions in the materials and FT-IR spectra showed the integration of reinforcement particles within the polymer matrix. SEM analysis described the diverse morphology of the synthesized materials and their complete dispersion in the polymer matrix. Cyclic voltammetry studies revealed the materials' potential as electroactive agents with reversible anodic and cathode peaks, as well as good electrical and storage properties. The materials hold promise for electrode and capacitor production technologies.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Jun Ruan, Yixuan Li, Junzhe Lin, Zihan Ren, Naeem Iqbal, Dan Guo, Tianrui Zhai
Summary: We propose a design of stable and transferable membrane inlaid with whispering-gallery-mode plasmon hybrid microlaser arrays for sensitive and stable thermal sensing. By integrating plasmonic gold nanorods with polymer lasing microfiber arrays that are embedded in the polydimethylsiloxane matrix, whispering-gallery-mode lasing arrays with high quality are achieved.
Article
Chemistry, Multidisciplinary
Jun Ruan, Yixuan Li, Junzhe Lin, Zihan Ren, Naeem Iqbal, Dan Guo, Tianrui Zhai
Summary: We propose a design of stable and transferable membrane inlaid with whispering-gallery-mode plasmon hybrid microlaser arrays for sensitive and stable thermal sensing.
Review
Chemistry, Multidisciplinary
Salsabeel Al-Sodies, Abdullah M. Asiri, Khalid A. Alamry, Mahmoud A. Hussein
Summary: In recent years, scientists in the electroactivity field have been interested in sensor applications. Safranine and luminol, combined with different nanomaterials, have been explored as sensors for various analytes using electrochemical and chemical techniques. This work provides a comprehensive review of the applications of poly(safranine) and poly(luminol) in sensor technology, including their synthesis methods and impressive impact as electrochemical sensors over the last few decades.
