A versatile ethanolic approach to metal aerogels (Pt, Pd, Au, Ag, Cu and Co)

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Maximilian Georgi - , Technische Universität Dresden (Autor:in)
  • Benjamin Klemmed - , Technische Universität Dresden (Autor:in)
  • Albrecht Benad - , Technische Universität Dresden (Autor:in)
  • Alexander Eychmueller - , Technische Universität Dresden (Autor:in)

Abstract

We present a universal one-step approach to generate metal aerogels at room and at dry ice cold temperature, abbreviated as DICE. Performing the synthesis completely in an ethanolic phase allows for the formation of pure noble (Pt, Pd, Au and Ag) and less noble metal (Cu and Co) gels in a remarkably short period of time compared to the widespread aqueous synthesis strategies. Furthermore, three-dimensional disordered, porous networks were obtained for each system with high surface areas of 860 m(2) mol(-1) for Ag up to 5470 m(2) mol(-1) for Co. Additionally, it is shown that the low reaction temperature of -70 degrees C enables the control of the gelation time without losing the structural characteristics. Moreover, with respect to industrial applications, this facile, stabilizer-free synthesis yields large amounts of materials using highly concentrated precursor solutions.

Details

OriginalspracheEnglisch
Seiten (von - bis)1586-1592
Seitenumfang7
FachzeitschriftMaterials chemistry frontiers
Jahrgang3
Ausgabenummer8
PublikationsstatusVeröffentlicht - 1 Aug. 2019
Peer-Review-StatusJa
Extern publiziertJa

Externe IDs

Scopus 85069672987

Schlagworte

Schlagwörter

  • BIMETALLIC AEROGELS, NITROGEN SORPTION, HIGH-PERFORMANCE, NANOPARTICLES