Manufacturing Graphene-Encapsulated Copper Particles by Chemical Vapor Deposition in a Cold Wall Reactor
Journal article, 2019

Functional fillers, such as Ag, are commonly employed for effectively improving the thermal or electrical conductivity in polymer composites. However, a disadvantage of such a strategy is that the cost and performance cannot be balanced simultaneously. Therefore, the drive to find a material with both a cost efficient fabrication process and excellent performance attracts intense research interest. In this work, inspired by the core-shell structure, we developed a facile manufacturing method to prepare graphene-encapsulated Cu nanoparticles (GCPs) through utilizing an improved chemical vapor deposition (CVD) system with a cold wall reactor. The obtained GCPs could retain their spherical shape and exhibited an outstanding thermal stability up to 179 degrees C. Owing to the superior thermal conductivity of graphene and excellent oxidation resistance of GCPs, the produced GCPs are practically used in a thermally conductive adhesive (TCA), which commonly consists of Ag as the functional filler. Measurement shows a substantial 74.6 % improvement by partial replacement of Ag with GCPs.

copper particles

thermal conductivity

oxidation resistance

graphene

cold wall reactor

Author

Shujing Chen

Shanghai University

Abdelhafid Zehri

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Qianlong Wang

Shenzhen Institute of Advanced Graphene Application and Technology (SIAGAT)

Guangjie Yuan

Shanghai University

Xiaohua Liu

Shanghai Shang Da Ruihu Microsyst Integrat Techno

Nan Wang

SHT Smart High-Tech

Johan Liu

Chalmers, Microtechnology and Nanoscience (MC2), Electronics Material and Systems Laboratory

Shanghai University

ChemistryOpen

2191-1363 (eISSN)

Vol. 8 1 58-63

Subject Categories

Polymer Technologies

Materials Chemistry

Composite Science and Engineering

DOI

10.1002/open.201800228

PubMed

30652066

More information

Latest update

7/19/2019