期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 45, 期 11, 页码 6994-7004出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.12.195
关键词
Titanium carbide; Ultrasonic treatment; Oxygen reduction reaction; Catalytic performance
资金
- Natural Science Foundation of Anhui Province, China [1808085MB31]
- National Natural Science Foundation of China [21904004]
- Stable Talent Foundation of Anhui Science and Technology University [HCWD201601]
- Science and Technology Major Project of Anhui Province, China [18030901087]
Addressed herein, a highly effective, low-cost and stable TiC nanocatalyst was successfully synthesized through ultrasonic exfoliation of commercial TiC in deionized water and its application as a catalyst in the oxygen reduction reaction is outlined. A facile ultrasonic exfoliation was applied to fabricate atomically thin TiC. The structure, morphology, composition and catalytic properties of atomically thin TiC were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), electron energy loss spectroscopy (EELS), atomic force microscopy (AFM), Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), and electrochemical methods. Atomically thin TiC possesses superior ORR activity in terms of catalytic performance, methanol tolerance, and long-term durability. This work has been provided a low-cost, efficient and stable substitute catalyst for Pt/C to promote the industrialization for energy storage and conversion devices. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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