石墨烯/聚二氧乙基塞吩水凝膠之研究

Study on Graphene/poly (3,4-ethylenedioxythiophene) hydrogel

賴威榤(Wei-Jie Lai)

指導教授 ： 程耀毅

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00193

摘要

本研究是將二氧乙基塞吩當作還原劑，還原氧化石墨烯，形成石墨烯/聚二氧乙基塞吩水凝膠。本研究分為兩部分，第一部份是利用改質之Hummers法來製備氧化石墨烯，此方法與傳統Hummers法不同於未使用NaNO3，在製備過程中不會產生有毒氣體之NO2/N2O4；第二部份我們利用二氧乙基塞吩還原氧化石墨烯，在還原的過程中，氧化石墨烯上的活性位置會與還原劑進行原位聚合形成水凝膠結構，我們並將此水凝膠進行電性質分析。
本實驗利用傅立葉轉換紅外光譜儀(FTIR)來鑑定化學結構，熱重損失分析儀(TGA)來探討水凝膠熱性質，XRD鑑定氧化石墨烯之層間距，並藉由四點探針(four point probe)測量水凝膠的導電度。

關鍵字

石墨烯(graphene) ； 聚二氧乙基塞吩(PEDOT) ； Hummers ； 石墨烯/聚二氧乙基塞吩水凝膠(graphene/PEDOT hydrogel)

並列摘要

In this report, we used 3,4-ethylenedioxythiophene(EDOT) as a reducing agent to convert graphene oxide (GO) into graphene. After these steps of reactions, the material would form a hydrogel mixture which included graphene and PEDOT. The products can help us to build the super capacitor in batteries.
Different from traditional steps, in Hummers method we divided the workflow as two parts. First, the graphene oxide are prepared without NaNO3. This processing had an advantage of not generating the toxic gases, like NO2 or N2O4 during the reactions. Second, the hydrogel which is produced by reaction of EDOT and graphene, would be examined for the electrical properties test.
The confirmation of chemical structure was determined Fourier transform infrared spectrometer (FTIR) for the hydrogel. The thermal properties was examined with thermo-gravimetric analysis (TGA).Finally the conductivity was measured with 4-point probe.

並列關鍵字

graphene ； poly(3,4-ethylenedioxythiophene) ； PEDOT ； Hummers ； graphene/PEDOT hydrogel

參考文獻

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