Jump to main content
Jump to site search

Issue 43, 2016
Previous Article Next Article

From anisotropic graphene aerogels to electron- and photo-driven phase change composites

Author affiliations

Abstract

To overcome fatal shortcomings of organic phase change materials (PCMs), such as leakage during work, low thermal conductivity and shortage of multiple driving ways, we propose a novel strategy to synthesize structurally, mechanically, electrically and optically anisotropic graphene aerogels (AN-GAs) by using gaseous hydrogen chloride to in situ solidify ordered graphene oxide liquid crystals followed by chemical reduction, supercritical fluid drying and annealing in an Ar atmosphere in sequence. The confined pore space and aligned wall structure of the resulting AN-GAs have benefited crystallization of organic phase change molecules and thus highly efficient phase change composites (PCCs) are fabricated with long durability and good strength. The resulting PCCs can also be driven either by applying a small voltage (1–3 V) with high electro-heat efficiency (up to 85%) or by irradiating with weak sunlight (0.8–1.0 sun) with high photo-heat efficiency (up to 77%).

Graphical abstract: From anisotropic graphene aerogels to electron- and photo-driven phase change composites

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 02 Sep 2016, accepted on 03 Oct 2016 and first published on 03 Oct 2016


Article type: Paper
DOI: 10.1039/C6TA07587H
Citation: J. Mater. Chem. A, 2016,4, 17042-17049
  •   Request permissions

    From anisotropic graphene aerogels to electron- and photo-driven phase change composites

    G. Li, X. Zhang, J. Wang and J. Fang, J. Mater. Chem. A, 2016, 4, 17042
    DOI: 10.1039/C6TA07587H

Search articles by author