Related Experiment Video
Updated: Apr 26, 2026
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
Tetrabutylphosphonium ions as a new swelling/delamination agent for layered compounds
Fengxia Geng1, Renzhi Ma, Yusuke Yamauchi
1International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan. SASAKI.Takayoshi@nims.go.jp.
Abstract:
The swelling and exfoliation behavior of protonated layered oxides using an organo-phosphonium base, tetrabutylphosphonium hydroxide (TBPOH), was examined for the first time. The action of the aqueous solution induced massive interlayer expansion up to ~100-fold. The swollen crystals were immediately broken and completely exfoliated into unilamellar nanosheets in 1-2 h by shaking.
