BROWSE

Related Scientist

Researcher

나노 구조 물리 연구단
나노구조물리 연구단
more info

Low temperature solution synthesis of reduced two dimensional Ti3C2 MXenes with paramagnetic behaviour

Cited 0 time in webofscience Cited 0 time in scopus
8 Viewed 0 Downloaded
Title
Low temperature solution synthesis of reduced two dimensional Ti3C2 MXenes with paramagnetic behaviour
Author(s)
Yeoheung Yoon; Thi Anh Le; Anand P. Tiwari; Ikjoon Kim; Michel W. Barsoum; Hyoyoung Lee
Publication Date
2018-12
Journal
NANOSCALE, v.10, no.47, pp.22429 - 22438
Publisher
ROYAL SOC CHEMISTRY
Abstract
MXenes - two dimensional, 2D, early transition metal, M, carbides and nitrides, X - are the latest addition to the 2D materials' world. Herein, we report on a facile low temperature solution chemical synthesis method to reduce Ti3C2Tx multilayered, ML, MXenes. Using X-ray photoelectron spectroscopy, electron spin resonance, magnetization measurements and other techniques, we concluded that immersing Ti3C2Tx MLs in the reducing agent Li-ethylenediamine (Li-EDA) - held at temperatures varying from room to 120 degrees C - reduces the 2D layers creating Ti3+ ions and oxygen vacancies. Above a temperature (T) of approximate to 10 K, the magnetic susceptibilities, , are temperature independent, implying that the resulting powders are Pauli paramagnetic. The loss of the magnetic signal upon intercalation of Li+ or EDA, together with a Curie-like increase in at T < 10 K, is consistent with that of a disordered metal that is close to a metallic to insulator transition and proves that the magnetism is associated with the 2D flakes. This result is the first evidence of any magnetism of any MXene. © The Royal Society of Chemistry 2018
URI
https://pr.ibs.re.kr/handle/8788114/5915
ISSN
2040-3364
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
Low temperature_Nnaoscale_Hyoyoung Lee.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse