(117h) Repetitive Pool Boiling Runs: A Controlled Process to Form Reduced GO Surfaces from GO with Tunable Surface Chemistry and Morphology
AIChE Annual Meeting
Monday, November 11, 2019 - 2:29pm to 2:46pm
Here, we have developed novel graphene oxide-copper (GO-Cu) porous coatings by a multi-step electrodeposition technique owing to higher thermal properties of GO and copper particles. We studied the effect of repetitive pool boiling on changes in molecular structure, surface chemistry, morphology, and wettability of the coatings. We observed the transformation of GO-Cu to reduced-GO-copper (rGO-Cu) coatings with repetitive boiling that led to improved boiling performance. This improvement is attributed to the transition of hydrophilic GO to hydrophobic rGO due to the repetitive pool boiling, and increased surface roughness as a result of hydrophobic surfaces. The durability, robustness and reliability of the GO-Cu coatings was found to be higher than pristine-copper and just-copper coated surfaces. A higher performance demonstrated by GO-Cu coatings indicate their increased sustainability and practicability in numerous engineering applications.