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Updated: Jul 10, 2026

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

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Manipulating Interfacial Water Molecules via Eutectic-Polymer Dual-Network for Stable Electrochromic Devices.

Jiandong Wan1, Xin Tan1, ChaoYang Li2

  • 1College of Materials Science and Engineering, Hunan University, Changsha, China.

Angewandte Chemie (International Ed. in English)
|July 9, 2026
PubMed
Summary
This summary is machine-generated.

A novel eutectic-polymer electrolyte enhances aqueous Zn-WO3 electrochromic devices (ZWEDs) by stabilizing interfaces. This improves device lifespan and expands operational temperature range for energy-efficient applications.

Keywords:
electrochromic deviceseutectic hydrogel electrolyteinterfacial engineeringwater molecule regulationwide temperature range

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Aqueous Zn-WO3 electrochromic devices (ZWEDs) offer energy-efficient solutions but suffer from short lifespans.
  • Poor electrode/electrolyte interfacial stability, caused by high water activity, limits practical application of ZWEDs.

Purpose of the Study:

  • To develop a novel eutectic-polymer dual-network electrolyte to enhance interfacial stability in ZWEDs.
  • To improve the operational lifespan and temperature range of ZWEDs.

Main Methods:

  • Development of a eutectic-polymer dual-network electrolyte.
  • In situ/ex situ spectroscopic analysis and simulations to investigate interfacial mechanisms.
  • Cyclic stability testing for ion storage and optical modulation.

Main Results:

  • The dual-network electrolyte effectively regulates water activity and stabilizes the electrode/electrolyte interface.
  • Hydrogen-bond network reconstruction and acetamide adsorption suppress parasitic reactions and side reactions.
  • Enhanced interfacial stability leads to outstanding cyclic stability over 1000 cycles.
  • Operational temperature range expanded to -30°C∼80°C.

Conclusions:

  • The developed eutectic-polymer dual-network electrolyte significantly enhances interfacial stability in ZWEDs.
  • This strategy provides a viable pathway for developing robust and widely applicable ZWEDs.