Next Article in Journal
Mechanical Durability of Engineered Superhydrophobic Surfaces for Anti-Corrosion
Next Article in Special Issue
Cost-Effective Surface Modification of Carbon Cloth Electrodes for Microbial Fuel Cells by Candle Soot Coating
Previous Article in Journal
The Functionalization of Nanostructures and Their Potential Applications in Edible Coatings
Previous Article in Special Issue
Modulating the Partitioning of Microparticles in a Polyethylene Glycol (PEG)-Dextran (DEX) Aqueous Biphasic System by Surface Modification
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Coatings 2018, 8(5), 161;

Synthesis of Core-Shell MgO Alloy Nanoparticles for Steelmaking

Central Iron and Steel Research Institute, Beijing 100081, China
School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials, Beijing 100083, China
Author to whom correspondence should be addressed.
Received: 4 April 2018 / Revised: 16 April 2018 / Accepted: 23 April 2018 / Published: 27 April 2018
(This article belongs to the Special Issue Surface Chemical Modification)
Full-Text   |   PDF [23269 KB, uploaded 3 May 2018]   |  


In this present study, we aimed to reduce the wetting angle of nanoparticles (NPs) in molten steel and thus, increase their utilization ratio in steel. In order to achieve this, a two-step process was used to synthesize a core-shell [email protected] NP structure for steelmaking through a dopamine polymerization process, which used an ammonium persulfate oxidant and high-temperature carbonization. The NP surface characterization was tested by scanning electron microscopy and field emission transmission electron microscopy, while the hydrodynamic NP size was measured by dynamic light scattering. The results showed that a carbon coating that had a thickness of 10 nm covered the NP surface, with the dispersion and stability of the particles in the aqueous solution having improved after the coating. The contact angle of the surface-treated NP was less than that of the uncoated NP in high-temperature molten steel and the corresponding wetting energy was smaller, which indicated improved wettability. View Full-Text
Keywords: MgO nanoparticle; dopamine polymerization; carbonization process; core shell structure; contact angle MgO nanoparticle; dopamine polymerization; carbonization process; core shell structure; contact angle

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Qu, J.; Yang, S.; Guo, H.; Li, J.; Wang, T. Synthesis of Core-Shell MgO Alloy Nanoparticles for Steelmaking. Coatings 2018, 8, 161.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Coatings EISSN 2079-6412 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top