Open AccessIonic conductivity of protonated layered titanate nano‐powder compact in water
Author(s) -
Nomura Munemitsu,
Vediyappan Veeramani,
Lai Qiwen,
Terayama Yuki,
Fujisaki Takaya,
Eguchi Hiroto,
Yamauchi Miho,
Sone Yoshitsugu,
Mendoza Omar,
Matsuda Junko,
Satokawa Shigeo,
Matsumoto Hiroshige
Publication year - 2020
Publication title -
nano select
Language(s) - English
Resource type - Journals
ISSN - 2688-4011
DOI - 10.1002/nano.202000031
Subject(s) - conductivity , thermogravimetric analysis , materials science , ionic conductivity , protonation , titanate , chemical engineering , nano , ionic bonding , proton , nanoparticle , analytical chemistry (journal) , composite material , nanotechnology , chemistry , ion , ceramic , organic chemistry , electrolyte , electrode , physics , quantum mechanics , engineering
This paper demonstrates that nano‐powder of a layered protonated titanate (H 2 Ti 2 O 5 ·H 2 O; LPT) compound exhibits a significant proton conductivity. The conductivity was measured on the compact of the un‐milled/milled powder and it reached higher than 10 −2 S cm −1 at 95°C in water in the milled case. The increase in conductivity of LPT after bead milling along with the thermogravimetric and surface area analysis suggested that the protonic conduction takes place on the surface of the nanoparticles in contact with water.