| Summary: | 碩士 === 國立雲林科技大學 === 材料科技研究所 === 101 === In this work Pt nanoparticles on graphene (PtNPs/GN) was formed from graphite oxide (GO) by two-step route. The first step is reduction of GO films by sodium tetrahydridoborate to obtain graphene. Then, the graphene deposited with Pt particles were put in ethylene glycol for a reflux ,and Pt nanoparticles / graphene composites could be obtained by the process.
In this study, Taguchi Method L18 [21×37] orthogonal arrays is used to list the control factors and levels, and the Electronic Properties of Platinum/graphene nanocomposites was evaluated by the electrochemically active surface area (ECSA), for Identifying the best combination of different parameters and the most determinative factor.
The results was evaluated by ECSA and show that the excellent electro-catalytic activity of 360 m2/g under the following reducing condition: reaction time of 6 hours, reaction temperature of 150°C and the 1.5 g/L of H2PtCl6. The detection of hydrogen peroxide (H2O2) show that under the optimal condition , the Pt/graphene composite has good sensitivity reduction capability and the best sensitivity of 885.74μAmM-1cm-2 .The detection of Glucose show a standard deviation (RSD) 0.937, linear range 0.1mM-2mM, detection limit 10μM and optimal sensitivity 251.83μAmM-1cm-2.
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