In Situ Synthesis of Ultrathin Amorphous Silica Nanosheet with Large Specific Surface Area on Graphene Oxide

Yuki Takeuchi, Seiji Obata, Kentaro Ohkura, Yuta Nishina

Research output: Contribution to journalArticlepeer-review

Abstract

Controlling the assembly of silica, forming monolith, mesoporous, dendritic, and nanosheet structures, has been conducted using a template method with an appropriate solvent or surfactant. Recently, two-dimensional materials, such as graphene oxide (GO), were used as the template to fabricate silica nanosheets (SNs). SNs with a lamellar structure and unique properties have been synthesized using surfactant as the template; however, SNs with ultrathin thicknesses below 2 nm and high specific surface areas have not been achieved previously. Therefore, we developed the in situ synthesis of ultrathin SNs using GO functionalized with alkoxysilanes that have amino groups. The SNs were about 1 nm thick and had an amorphous structure and high specific surface areas (904 m2/g).

Original languageEnglish
Pages (from-to)2590-2596
Number of pages7
JournalACS Materials Letters
Volume4
Issue number12
DOIs
Publication statusPublished - Dec 5 2022

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Biomedical Engineering
  • Materials Science(all)

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