Photochemically driven one-step triple dynamic network formation in printable tough hydrogel for self-healing tubular sensors

Sun, Liwei; Lü, Zhe; Zhang, Ping; Wei, Hongqiu; Yu, You

doi:10.1039/d3py00093a

Cited by 2 publications

(1 citation statement)

References 62 publications

(68 reference statements)

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“…Our analysis of the G' and G" curves around 150 °C suggested that HOF glass resides between a high elastic state and a viscous flow state near this critical temperature point. Upon increasing the temperature to 160 °C, G' drastically decreased from ~10 6 Pa to about 10 2 Pa due to structural damage to the HOF glass 60,61 .…”

Section: Crystal Melting and Glass Formationmentioning

confidence: 99%

Vitrification-enabled enhancement of proton conductivity in hydrogen-bonded organic frameworks

Yang,

Wang,

Tian

et al. 2024

Nat Commun

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Hydrogen-bonded organic frameworks (HOFs) are versatile materials with potential applications in proton conduction. Traditional approaches involve incorporating humidity control to address grain boundary challenges for proton conduction. This study finds vitrification as an alternative strategy to eliminate grain boundary effect in HOFs by rapidly melt quenching the kinetically stable HOF-SXU-8 to glassy state HOF-g. Notably, a remarkable enhancement in proton conductivity without humidity was achieved after vitrification, from 1.31 × 10−7 S cm−1 to 5.62× 10−2 S cm−1 at 100 °C. Long term stability test showed negligible performance degradation, and even at 30 °C, the proton conductivity remained at high level of 1.2 × 10−2 S cm−1. Molecule dynamics (MD) simulations and X-ray total scattering experiments reveal the HOF-g system is consisted of three kinds of clusters, i.e., 1,5-Naphthalenedisulfonic acid (1,5-NSA) anion clusters, N,N-dimethylformamide (DMF) molecule clusters, and H+-H2O clusters. In which, the H+ plays an important role to bridge these clusters and the high conductivity is mainly related to the H+ on H3O+. These findings provide valuable insights for optimizing HOFs, enabling efficient proton conduction, and advancing energy conversion and storage devices.

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Section: Crystal Melting and Glass Formationmentioning

confidence: 99%

Vitrification-enabled enhancement of proton conductivity in hydrogen-bonded organic frameworks

Yang,

Wang,

Tian

et al. 2024

Nat Commun

View full text Add to dashboard Cite

show abstract

Ultra-fast cryogenic self-healing ionic hydrogel for flexible wearable bioelectronics

Jia,

Jiang,

Ren

et al. 2024

Chemical Engineering Journal

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Photochemically driven one-step triple dynamic network formation in printable tough hydrogel for self-healing tubular sensors

Abstract: Self-healing hydrogels have attracted wide attention due to their excellent biocompatibility, mechanical properties, and reparability. However, it is still a challenge to one-step construct printable self-healing tough hydrogels (PSHTHs), limiting...

Cited by 2 publications

References 62 publications

Vitrification-enabled enhancement of proton conductivity in hydrogen-bonded organic frameworks

Vitrification-enabled enhancement of proton conductivity in hydrogen-bonded organic frameworks

Ultra-fast cryogenic self-healing ionic hydrogel for flexible wearable bioelectronics

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