Stabilizing Bicontinuous Emulsions with Sub‐Micrometer Domains Solely by Nanoparticles

Abstract: Nanoparticle‐stabilized, bicontinuous interfacially jammed emulsion gels (bijels) find potential applications as battery, separation membrane, and chemical reactor materials. Decreasing the liquid domain sizes of bijels to sub‐micrometer dimensions requires surfactants, complicating bijel synthesis and postprocessing into functional nanomaterials. This work introduces surfactant‐free bijels with sub‐micrometer domains, solely stabilized by nanoparticles. To this end, the covalent surface functionalization of silica nanoparticles is characterized by thermogravimetric analysis, mass spectrometry, Fourier‐transform infrared spectroscopy, and contact angle measurements. Bijels are generated with the functionalized nanoparticles via solvent transfer induced phase separation (STrIPS), enabling the optimization of nanoparticle functionalization and surface ionization. Nanoparticles of intermediate functionalization and controlled negative surface charge stabilize bijels with sub‐micrometer liquid domains. This remarkable control over bijel synthesis provides urgently needed progress to facilitate the widespread implementation of bijels as nanomaterials in research and applications.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Stabilizing Bicontinuous Emulsions with Sub‐Micrometer Domains Solely by Nanoparticles ; day:20 ; month:08 ; year:2024 ; extent:8
Advanced science ; (20.08.2024) (gesamt 8)

Urheber
Sprockel, Alessio J.
Vrijhoeven, Tessa N.
Siegel, Henrik
Steenvoorden, Ffion E.
Haase, Martin F.

DOI
10.1002/advs.202406223
URN
urn:nbn:de:101:1-2408211416581.371776269587
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
14.08.2025, 10:57 MESZ

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Beteiligte

  • Sprockel, Alessio J.
  • Vrijhoeven, Tessa N.
  • Siegel, Henrik
  • Steenvoorden, Ffion E.
  • Haase, Martin F.

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