Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162167 - 162167
Published: April 1, 2025
Language: Английский
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
Abstract Hydrogels have received great attention due to their molecular designability and wide application range. However, they are prone freeze at low temperatures the existence of mass water molecules, which can damage flexibility transparency, greatly limiting use in cold environments. Although adding cryoprotectants reduce freezing point hydrogels, it may also deteriorate mechanical properties face risk cryoprotectant leakage. Herein, microphase‐separated structures hydrogels regulated confine molecules sub‐6 nm nanochannels increase proportion bound water, endowing with intrinsic anti‐freezing properties, high strength, good stretchability, remarkable fracture energy, puncture resistance. Even after being kept liquid nitrogen for 1000 h, hydrogel still maintains transparency. The exhibit excellent low‐temperature shape memory intelligent optical waveguide properties. Additionally, be assembled into strain pressure sensors flexible sensing both room temperatures. intrinsically offers broad prospects electronic applications.
Language: Английский
Citations
5
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 24, 2025
Abstract Flexible temperature sensors often use gels to achieve skin‐inspired softness, but the water evaporation and freezing of hydrogel leakage ionogel, cause unstable signal transmission inaccurate measurement at sub‐zero temperatures. Here steady hypothermic sensing is achieved by designing a supramolecular elastomer containing two types segments: liquid‐free iontronic segment transmit electrical charges prevent ion leakage, neutral with pendant chains damp vibration for stable transmission. The exhibits excellent tensile properties, adhesiveness, self‐healing, ionic conductivity A wireless system fabricated based on supermolecule elastomer, realizing accurate, steady, sensitive real‐time detection. Especially, sensor coefficient resistance (TCR) 8.87% °C −1 from −20 −15 °C, three five times higher than that most flexible sensors. There no significant difference in detected this an infrared thermal imaging camera. Such represents step toward highly accurate cold chain transportation beyond.
Language: Английский
Citations
1
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(45)
Published: Sept. 18, 2024
Abstract Ionogels have garnered significant interest due to their great potential in flexible iontronic devices. However, limited mechanical tunability and environmental intolerance posed challenges for integration into next‐generation electronics different scenarios. Herein, the synergistic effect of cation‐oxygen coordination interaction hydrogen bonding is leveraged construct a 3D supramolecular network, resulting ionogels with tunable modulus, stretchability, strength, achieving an unprecedented elongation at break 10 800%. Moreover, network endows extremely high fracture energy, crack insensitivity, elasticity. Meanwhile, stability hydrophobic further shield them from unfavorable effects temperature variations water molecules, enabling operate within broad range exhibit robust underwater adhesion. Then, ionogel assembled wearable sensor, demonstrating its sensing (temperature, pressure, strain) signal transmission. This work can inspire applications multifunctional fields.
Language: Английский
Citations
7
Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110878 - 110878
Published: March 1, 2025
Language: Английский
Citations
0
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: April 29, 2025
Language: Английский
Citations
0
Small, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 1, 2024
Abstract Polymerizable deep eutectic solvents (PDESs) have emerged as promising building blocks for next‐generation gels, offering new opportunities the development of advanced electronic devices. Traditional PDES fabrication typically involves heating and extended processing time. In this study, a facile method where solid‐solid mixture lithium bis(trifluoromethane) sulfonimide (LiTFSI) acrylamide (AAm) rapidly forms at room temperature, significantly simplifying ionogel preparation is presented. By combining with another system, comprising 3‐[dimethyl‐[2‐(2‐methylprop‐2‐enoyloxy)ethyl]azaniumyl]propane‐1‐sulfonate (SBMA) ethylene glycol (EG), an gel successfully fabricated exceptional mechanical conductive properties. This exhibits fracture stress 0.8 MPa, energy 3.7 kJ m −2 , adhesion strength 60 kPa, transmittance over 90%, high conductivity (0.113 S −1 ), outstanding temperature tolerance ranged from ‐50 to 50 °C. Notably, absence chemical crosslinkers presence reversible interactions such hydrogen bonding ion‐dipole electrostatic forces impart excellent self‐healing capabilities. These combined features position candidate multisensory ionic skins, capable detecting pressure, humidity, sweat. work pioneers rapid, mild‐condition synthesis PDESs, paving way techniques in skin development.
Language: Английский
Citations
3
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162167 - 162167
Published: April 1, 2025
Language: Английский
Citations
0