Hybrid Graphene and Single-Walled Carbon Nanotube Films for Enhanced Phase-Change Heat Transfer

Han Seo; Hyung Duk Yun; Soon-Yong Kwon; In Cheol Bang

doi:10.1021/acs.nanolett.5b03832

Hybrid Graphene and Single-Walled Carbon Nanotube Films for Enhanced Phase-Change Heat Transfer

Nano Lett. 2016 Feb 10;16(2):932-8. doi: 10.1021/acs.nanolett.5b03832. Epub 2016 Jan 6.

Authors

Han Seo¹, Hyung Duk Yun¹, Soon-Yong Kwon¹, In Cheol Bang¹

Affiliation

¹ School of Mechanical and Nuclear Engineering and ‡School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea.

PMID: 26731547
DOI: 10.1021/acs.nanolett.5b03832

Abstract

Nucleate boiling is an effective heat transfer method in power generation systems and cooling devices. In this letter, hybrid graphene/single-walled carbon nanotube (SWCNT), graphene, and SWCNT films deposited on indium tin oxide (ITO) surfaces were fabricated to investigate the enhancement of nucleate boiling phenomena described by the critical heat flux and heat transfer coefficient. The graphene films were grown on Cu foils and transferred to ITO surfaces. Furthermore, SWCNTs were deposited on the graphene layer to fabricate hybrid graphene/SWCNT films. We determined that the hybrid graphene/SWCNT film deposited on an ITO surface is the most effective heat transfer surface in pool boiling because of the interconnected network of carbon structures.

Keywords: Graphene; SWCNTs; boiling heat transfer; critical heat flux; hybrid graphene/SWCNTs.

Publication types

Research Support, Non-U.S. Gov't