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Growth of titania and tin oxide from Ti2SnC via rapid thermal oxidation in air for lithium-ion battery application

  • Herein, we report the synthesis of TiO2–SnO2–C/carbide hybrid electrode materials for Li-ion batteries (LIBs) via two different methods of controlled oxidation of layered Ti2SnC. The material was partially oxidized in an open-air furnace (OAF) or using a rapid thermal annealing (RTA) approach to obtain the desired TiO2–SnO2–C/carbide hybrid material; the carbide phase encompassed both residual Ti2SnC and TiC as a reaction product. We tested the oxidized materials as an anode in a half cell to investigate their electrochemical performance in LIBs. Analysis of the various oxidation conditions indicated the highest initial lithiation capacity of 838 mAh/g at 100 mA/g for the sample oxidized in the OAF at 700°C for 1 h. Still, the delithiation capacity dropped to 427 mAh/g and faded over cycling. Long-term cycling demonstrated that the RTA sample treated at 800°C for 30 s was the most efficient, as it demonstrated a reversible capacity of around 270 mAh/g after 150 cycles, as well as a specific capacity of about 150 mAh/g under high cycling rate (2000 mA/g). Given the materials’ promising performance, this processing method could likely be applied to many other members of the MAX family, with a wide range of energy storage applications.

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Document Type:Article
Author:Shae Jolly, Samantha HusmannORCiD, Volker PresserORCiD, Michael NaguibORCiD
Parent Title (English):Journal of the American Ceramic Society
First Page:3261
Last Page:3271
Year of first Publication:2023
Release Date:2023/03/24
Tag:MAX phase; energy storage; metal oxide; tin oxide
Impact:04.186 (2021)
Funding Information:Fluid Interface Reactions, Structures, and Transport (FIRST) Center, an Energy Frontier Research Center (EFRC) funded by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences; The German Research Foundation (DFG, Deutsche Forschungsgemeinschaft). Grant Number: PR-1173/9
DDC classes:500 Naturwissenschaften und Mathematik / 540 Chemie
Open Access:Open Access
Signature:INM 2023/022
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International