Fabrication and Characterization of Nanocarbon-Based Nanofluids by Using an Oxygen–Acetylene Flame Synthesis System

作者: Tun-Ping Teng , Wei-Ping Wang , Yu-Chun Hsu

DOI: 10.1186/S11671-016-1522-6

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摘要: In this study, an oxygen–acetylene flame synthesis system was developed to fabricate nanocarbon-based nanofluids (NCBNFs) through a one-step method. Measured in liters per minute (LPM), the flame’s fuel flows combined oxygen and acetylene at four ratios: 1.5/2.5 (P1), 1.0/2.5 (P2), 0.5/2.5 (P3), 0/2.5 (P4). The flow rate of cooling water (base fluid) fixed 1.2 LPM produce different materials (NCBMs) various concentrations NCBNFs. Tests analyses were conducted for determining morphology NCBMs, NCBM material, optical characteristics, production rate, suspension performance, average particle size, zeta potential, other relevant basic characteristics NCBNFs understand produced process parameters (P1–P4). results revealed that NCBMs mainly had flaky spherical morphologies diameters measured approximately 20–30 nm. X-ray diffraction Raman spectroscopy contained graphene oxide (GO) amorphous carbon (AC) when lower than 1.0 LPM. addition, reduced GO, crystalline graphite (graphite-2H), AC higher P1, P2, P3, P4 resulted 0.010, 0.013, 0.040, 0.023 wt%, respectively, All exhibited non-Newtonian shear-thinning rheological properties. ratio showed highest enhancement thermal conductivity NCBNFs, 4.85 % water.

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