Next Article in Journal
Stochastic Constitutive Model of Isotropic Thin Fiber Networks Based on Stochastic Volume Elements
Previous Article in Journal
First-Principles Study of the Electronic, Vibrational Properties and Anharmonic Effects of Some Si-Based Type-II Binary Clathrates
Article Menu

Export Article

Open AccessArticle
Materials 2019, 12(3), 537; https://doi.org/10.3390/ma12030537

Preparation and Characterization of Nanostructured Hollow MgO Spheres

1
School of High Temperature Materials and Magnesia Resources Engineering, University of Science and Technology Liaoning, Anshan 114051, China
2
Ruitai Materials Technology Co., Ltd., China Building Materials Academy, Beijing 100024, China
*
Author to whom correspondence should be addressed.
Received: 17 January 2019 / Revised: 5 February 2019 / Accepted: 8 February 2019 / Published: 11 February 2019
Full-Text   |   PDF [9434 KB, uploaded 11 February 2019]   |  
  |   Review Reports

Abstract

Nanostructured hollow MgO microspheres were prepared by the template method. First, D-Anhydrous glucose was polymerized by the hydrothermal method to form a template. Second, a colorless solution was obtained by mixing magnesite with hydrochloric acid in a 1:2 proportion and heating in an 80 °C water bath for 2 h. Finally, the template from the first step was placed in the colorless solution, and the resulting precipitate was calcined at 550 °C for 2 h. The phase composition and microstructure of the calcined samples were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The XRD results indicated that the main crystal is periclase. The SEM results indicates that the template carbon microsphere surface is smooth, and the its size is uniform and concentrated in the range of 100–200 nm. The diameters of the samples range from 60 to 90 nm, which is smaller than the size of the carbon microsphere. The TEM results indicates that the sample is hollow with a shell thickness of about 6–10 nm. The specific surface area of the calcined hollow sphere is 59.5 m²·g−1. View Full-Text
Keywords: template method; magnesite; carbon microspheres; nanostructured hollow MgO template method; magnesite; carbon microspheres; nanostructured hollow MgO
Figures

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).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Han, J.; Li, G.; Yuan, L. Preparation and Characterization of Nanostructured Hollow MgO Spheres. Materials 2019, 12, 537.

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

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top