METHOD FOR INTRODUCING TBA CATION INTO LAYERED OXIDE, COMBINATION OF NONAQUEOUS SOLVENT AND TBA CATION USED IN THE METHOD, AND OXIDE NANOSHEET

• Main Authors: MURAMATSU KEISUKE, SUGIMOTO WATARU
• Format: Patent
• Language: English; Japanese
• Published: 07.04.2025
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; PERFORMING OPERATIONS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

To provide a method for introducing a TBA cation into a layered oxide, which enables obtaining a nanosheet from a raw material in a nonaqueous solvent, a combination of a nonaqueous solvent and a TBA cation used in the method, and an oxide nanosheet.SOLUTION: The above problem is solved by a method for introducing a TBA cation into a layered oxide, which is a method for intercalating a quaternary ammonium cation into a layered oxide in a nonaqueous mixed solvent consisting of acetonitrile and methanol. In this case, the mixed solvent preferably has a volume fraction of [acetonitrile]/[acetonitrile + methanol] in a range of 20% to 80%, and the layered oxide is a layered titanic acid.SELECTED DRAWING: Figure 1 【課題】非水溶媒中で原料からナノシートを得ることを可能にする、層状酸化物へのＴＢＡカチオンの導入法、その方法で用いる非水溶媒とＴＢＡカチオンの組み合わせ、及び酸化物ナノシートを提供する。【解決手段】層状酸化物に対して、アセトニトリルとメタノールからなる非水系の混合溶媒中で第四級アンモニウムカチオンをインターカレーションする方法である、層状酸化物へのＴＢＡカチオンの導入法により上記課題を解決する。このとき、混合溶媒は［アセトニトリル］／［アセトニトリル＋メタノール］の体積分率が２０％～８０％の範囲内であり、層状酸化物が層状チタン酸であることが好ましい。【選択図】図１