Use of cubic structure with primitive nanochannels for fabrication of free standing 3D nanowire network of Pt with Pm3m symmetry

Samina Akbar, Joanne M. Elliott, Adam M. Squires, Aneela Anwar

Research output: Contribution to journalArticlepeer-review

Abstract

In this work, we developed a lipid mixture based on phytantriol / polyoxyethylene surfactant (Brij-56) that forms a Im3m symmetry bicontinuous cubic phase based on the Schwartz primitive surface (Q II P ), from which we templated highly ordered 3D nanoporous platinum with a novel 'single primitive' morphology (Pm3m symmetry). The Q II P template phase is obtained by incorporation of 17.5% w/w Brij-56 (C16EO10) (a type-I surfactant) into phytantriol under excess hydration conditions. Phytantriol alone forms the double diamond Q II D (Pn3m) phase, and in previous studies incorporating Brij-56 at different compositions the cubic phase maintained this morphology, but increased its lattice parameter; mesoporous metals templated from these Q II D lipid templates all exhibited the 'single diamond' (Fd3m) morphology. In contrast, the current paper presents the availability of our Q II P cubic phases to template nanoporous materials of single primitive Pm3m morphology via chemical and electrochemical methods. To explore the structure porosity and morphological features of the templated Pt material, x-ray scattering and transmission electron microscopy are used. The resulting 3D nanoporous Pt materials are found to exhibit a regular network of Pt nanowires of ∼4 nm in diameter with a unit cell dimension of 14.8 ± 0.8 nm, reflecting the aqueous network within the Q II P template.

Original languageEnglish
Article number195602
JournalNanotechnology
Volume33
Issue number19
DOIs
Publication statusPublished - 15 Feb 2022

Keywords

  • liquid crystals
  • nanoporous
  • platinum
  • primitive cubic
  • template

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Use of cubic structure with primitive nanochannels for fabrication of free standing 3D nanowire network of Pt with Pm3m symmetry'. Together they form a unique fingerprint.

Cite this