Bottom-up method for synthesis of layered lithium titanate nanoplates using ion precursor

Hyunsu Park; Do Hyung Han; Tomoyo Goto; Sunghun Cho; Woo-Byoung Kim; Masato Kakihana; Tohru Sekino

doi:10.1039/d1cc03644k

Bottom-up method for synthesis of layered lithium titanate nanoplates using ion precursor

Chem Commun (Camb). 2021 Nov 23;57(93):12536-12539. doi: 10.1039/d1cc03644k.

Authors

Hyunsu Park¹, Do Hyung Han¹, Tomoyo Goto^{1

2}, Sunghun Cho¹, Woo-Byoung Kim³, Masato Kakihana^{1

4}, Tohru Sekino¹

Affiliations

¹ SANKEN (The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mohogaoka, Ibaraki, Osaka, 567-0047, Japan. hspark23@sanken.osaka-u.ac.jp.
² Institute for Advanced Co-Creation Studies, Osaka University, 1-1 Yamadaoka, Suita, Osaka, 565-0871, Japan.
³ Department of Energy Engineering, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan-si, 31116, Republic of Korea.
⁴ Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 katahira, Aoba-ku, Sendai, 980-8577, Japan.

PMID: 34751686
DOI: 10.1039/d1cc03644k

Abstract

A facile bottom-up method for the synthesis of lithium titanate nanoplates using a peroxo titanium complex ion precursor is reported. Instead of employing complicated treatment with high alkali concentration, the self-organization reaction between lithium and titanium ions in the prepared ion precursor can enable the formation of layered lithium titanate crystals (Li_2-xH_xTi₂O₅, where x = 0.1 and 1.52 for as-synthesise and acid-treated samples, respectively) under low alkaline conditions. We demonstrate that layered lithium titanate crystals can be grown anisotropically into individual nanoplates. Our work presents an easy and useful platform for the production of titanate materials with various morphologies based on the interaction with ionic species.