Next Article in Journal
An Optimal Augmented Monotonic Tracking Controller for Aircraft Engines with Output Constraints
Next Article in Special Issue
Wave Energy Assessment along Sicilian Coastline, Based on DEIM Point Absorber
Previous Article in Journal
Thermal Analysis of a Solar Powered Absorption Cooling System with Fully Mixed Thermal Storage at Startup
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Energies 2017, 10(1), 70; doi:10.3390/en10010070

Thermochemical Storage of Middle Temperature Wasted Heat by Functionalized C/Mg(OH)2 Hybrid Materials

National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
Department of Engineering, University of Messina, 98166 Messina, Italy
Laboratory for Advanced Nuclear Energy, Institute of Innovative Research, Tokyo Institute of Technology, Tokyo 152-8550, Japan
Department of Civil, Energetic, Environmental and Materials Engineering, Mediterranean University of Reggio Calabria, 89124 Reggio Calabria, Italy
Authors to whom correspondence should be addressed.
Academic Editor: Francesco Calise
Received: 14 October 2016 / Revised: 22 December 2016 / Accepted: 29 December 2016 / Published: 10 January 2017
View Full-Text   |   Download PDF [16968 KB, uploaded 10 January 2017]   |  


For the thermochemical performance implementation of Mg(OH)2 as a heat storage medium, several hybrid materials have been investigated. For this study, high-performance hybrid materials have been developed by exploiting the authors’ previous findings. Expanded graphite (EG)/carbon nanotubes (CNTs)-Mg(OH)2 hybrid materials have been prepared through Mg(OH)2 deposition-precipitation over functionalized, i.e., oxidized, or un-functionalized EG or CNTs. The heat storage performances of the carbon-based hybrid materials have been investigated through a laboratory-scale experimental simulation of the heat storage/release cycles, carried out by a thermogravimetric apparatus. This study offers a critical evaluation of the thermochemical performances of developed materials through their comparison in terms of heat storage and output capacities per mass and volume unit. It was demonstrated that both EG and CNTs improves the thermochemical performances of the storage medium in terms of reaction rate and conversion with respect to pure Mg(OH)2. With functionalized EG/CNTs-Mg(OH)2, (i) the potential heat storage and output capacities per mass unit of Mg(OH)2 have been completely exploited; and (ii) higher heat storage and output capacities per volume unit were obtained. That means, for technological applications, as smaller volume at equal stored/released heat. View Full-Text
Keywords: thermochemical storage; magnesium hydroxide; exfoliated graphite; graphene oxide; carbon nanotubes thermochemical storage; magnesium hydroxide; exfoliated graphite; graphene oxide; carbon nanotubes

Figure 1a

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 alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Mastronardo, E.; Kato, Y.; Bonaccorsi, L.; Piperopoulos, E.; Milone, C. Thermochemical Storage of Middle Temperature Wasted Heat by Functionalized C/Mg(OH)2 Hybrid Materials. Energies 2017, 10, 70.

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]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top