Issue 51, 2016, Issue in Progress

From rice husk to high performance shape stabilized phase change materials for thermal energy storage

Abstract

A novel shape-stabilized phase change material (SSPCM) was fabricated by using a vacuum impregnation technique. The lightweight, ultra-high specific surface area and porous activated carbon was prepared from waste material (rice husk) through the combination of an activation temperature approach and a sodium hydroxide activation procedure. Palmitic acid as a phase change material was impregnated into the porous carbon by a vacuum impregnation technique. Graphene nanoplatelets (GNPs) were employed as an additive for thermal conductivity enhancement of the SSPCMs. The attained composites exhibited exceptional phase change behavior, having a desirable latent heat storage capacity of 175 kJ kg−1. When exposed to high solar radiation intensities, the composites can absorb and store the thermal energy. An FTIR analysis of the SSPCMs indicated that there was no chemical interaction between the palmitic acid and the activated carbon with GNPs. The thermal conductivity of the prepared composites improved by more than 97% for the highest loading of GNPs (6 wt%) compared with that of pure palmitic acid. Moreover, the SSPCMs exhibit high thermal stability, with a stable melting–freezing enthalpy and excellent reversibility. The prepared SSPCMs with enhanced heat transfer and phase change properties provide a beneficial option for building energy conservation and solar energy applications owing to the low cost of raw materials and the simple synthetic technique.

Graphical abstract: From rice husk to high performance shape stabilized phase change materials for thermal energy storage

Article information

Article type
Paper
Submitted
10 Feb 2016
Accepted
02 May 2016
First published
04 May 2016

RSC Adv., 2016,6, 45595-45604

From rice husk to high performance shape stabilized phase change materials for thermal energy storage

M. Mehrali, S. Tahan Latibari, M. A. Rosen, A. R. Akhiani, M. S. Naghavi, E. Sadeghinezhad, H. S. C. Metselaar, M. Mohammadi Nejad and M. Mehrali, RSC Adv., 2016, 6, 45595 DOI: 10.1039/C6RA03721F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements