Investigation of stability, dispersion, and thermal conductivity of functionalized multi-walled carbon nanotube based nanofluid. Issue 1 (May 2020)

• Record Type: Journal Article
• Authors: Hussein, O A; Habib, K; Nasif, M; Saidur, R; Muhsan, A S
• Is Part Of: IOP conference series. Volume 863:Issue 1(2020)
• Publication Date: 2020-05
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/863/1/012012
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: In the attempt of preparing multi-walled carbon nanotube (MWCNTs), covalent functionalisation (CF-MWCNTs) were applied. The stable thermal conductivity was measured as a function of temperature. A number of techniques, such as FTIR, FESEM and UV-vis spectrophotometer were employed to characterise both dispersion stability and morphology of functionalised materials. By using ultrasonic test time, the highest stability of nanofluids was achieved at 60 minutes. As a result, the thermal conductivity displayed by CF-MWCNTs was higher than distilled water. In conclusion, improvement in thermal conductivity and stability displayed by CF-MWCNTs was higher, while the best thermal conductivity improvement was recorded at 31%.