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Ultrasensitive Flexible NO Sensors with Remote-Controllable ADC-Electropolymerized Conducting Polymers on Plastic.
ACS Nano
January 2025
SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Technology, Sungkyunkwan University, Suwon 16419, Republic of Korea.
Alternating- and direct-current (ADC) bipolar electropolymerization (EP) offers an efficient and scalable approach for the lateral synthesis of conjugated macromolecules, enabling the simultaneous polymerization and deposition of large conducting polymer films with intriguing fractal-like ramified topographies onto arbitrary insulating substrates under remote control. In this study, we presented the remote synthesis of poly(3,4-ethylenedioxythiophene) (PEDOT):anion sensing films on a plastic substrate, aimed at their use in flexible nitrogen dioxide (NO) gas sensors. Notably, the PEDOT:ClO films exhibited excellent gas-sensing characteristics, with a sensitivity of 54.
View Article and Find Full Text PDFIn-Situ Diagnostics of Multi-Thermal Fluid Injection Parameters Using Stray Radiation Suppression and Circular Cell-Enhanced Laser Absorption Spectroscopy.
Anal Chem
January 2025
School of Architecture and Civil Engineering, Northeast Petroleum University, Daqing 163318, China.
Multithermal fluid (MTF) component ratios and injection parameters are critical inputs in offshore heavy oil development, such as injection adjustment and monitoring, productivity prediction, and generator combustion process optimization. We implement simultaneous in situ diagnostics of two emblematic injection parameters, the gas-water ratio (GWR) and noncondensable gases proportion (NCGP), in a pilot-scale environment. A system-level integration of a novel laser absorption spectroscopy multigas sensor system based on integrating stray radiation suppression and a circular cell-enhanced strategy is proposed.
View Article and Find Full Text PDFIntrinsically Microporous Polyimides Based on a Rigid-Soft Structure for Hydrogen Separation.
ACS Appl Mater Interfaces
January 2025
School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
Polyimide (PI)-based gas separation membranes are of great interest in the field of H purification owing to their good thermal stability, chemical stability, and mechanical properties. Among polyimide-based membranes, intrinsically microporous polyimides are easily soluble in common organic solvents, showing great potential for fabricating hollow fiber gas separation membranes. However, based on the solution-diffusion model, improving the free volume or the movability of polymer chains can improve gas permeability, but would result in poor thermal stability.
View Article and Find Full Text PDFSelective Liquid Chemical Production in Waste Polyolefin Photorefinery by Controlling Reactive Species.
J Am Chem Soc
January 2025
Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, 199 Ren'ai Road, Suzhou, Jiangsu 215123, China.
Photocatalytic upcycling of waste polyolefins into value-added chemicals provides promise in plastic waste management and resource utilization. Previous works demonstrate that polyolefins can be converted into carboxylic acids, with CO as the final oxidation product. It is still challenging to explore more transformation products, particularly mild-oxidation products such as alcohols, because of their instability compared with polymer substrates, which are prone to oxidation during catalytic reactions.
View Article and Find Full Text PDFInterfacial Engineering Facilitates Real-Time Detection of Dual Hazardous Gases at ppb Levels via Single-Step Hydrothermal Nanoarchitectonics of Self-Assembled PbSnS/SnO Heterostructures.
ACS Sens
January 2025
Department of Physics, National Chung Hsing University, Taichung 402, Taiwan.
Next-generation real-time gas sensors are crucial for detecting multiple gases simultaneously with high sensitivity and selectivity. In this study, ternary metal sulfide (PbSnS)-incorporated metal oxide (SnO) heterostructures were synthesized via a one-step hydrothermal method. Characterizations such as X-ray diffraction, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy confirmed the successful formation of PbSnS/SnO heterostructures.
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