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Related Experiment Video

Updated: Dec 14, 2025

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording
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Pristine Titanium Carbide MXene Hydrogel Matrix.

Hongwu Chen1, Hongyun Ma1, Panpan Zhang2

  • 1Department of Chemistry, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China.

ACS Nano
|July 18, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed a new titanium carbide MXene (Ti3C2Tx) hydrogel. This novel material exhibits enhanced stability and high performance in applications like solar steam generation.

Keywords:
MXeneanisotropyhydrogelsintercalation chemistrymicrostructure control

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • Hydrogel matrices typically rely on covalent or noncovalent bonds, offering resistance to hydration and disassembly.
  • Titanium carbide MXene (Ti3C2Tx) presents unique intercalation chemistry, where ion exchange influences hydration properties.

Purpose of the Study:

  • To demonstrate a chemical transition in Ti3C2Tx leading to suppressed hydration.
  • To fabricate pristine Ti3C2Tx hydrogel matrices with controlled microstructures.
  • To evaluate the material properties and performance of the novel hydrogel.

Main Methods:

  • Utilizing the exchange of intercalated Li+ with hydrated protons in Ti3C2Tx.
  • Employing freezing-induced preassembly for microstructure control.
  • Developing a specialized thawing process in protic acids for hydrogel formation.

Main Results:

  • Achieved significantly suppressed hydration in stacked Ti3C2Tx.
  • Fabricated pristine Ti3C2Tx hydrogels without extrinsic components.
  • Obtained a compressive modulus of 2.4 MPa and conductivity of 220.3 ± 16.8 S/m at 5 wt % solid content.
  • Demonstrated anisotropic Ti3C2Tx hydrogel performance in solar steam generation.

Conclusions:

  • The intercalation chemistry of Ti3C2Tx enables the fabrication of stable, high-performance hydrogels.
  • Pristine Ti3C2Tx hydrogels offer superior mechanical and electrical properties.
  • The developed hydrogel shows potential for efficient solar steam generation due to facilitated water transport.