Synthesis of graphene oxide inks for printed electronics

Tencha, Andrii; Fedoriv, Vasyl; Shtepliuk, Ivan; Yakimova, Rositsa; Ivanov, Ivan Gueorguiev; Khranovskyy, Volodymyr; Shavanova, K.; Ruban, Yuliia

doi:10.1109/ysf.2017.8126608

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…Figure 3 displays the UV-vis absorption spectra of all samples. Both GO and GO-MW show two characteristic peaks at around 240 and 310 nm, corresponding to π-π * transition (C=C bond) and n-π * transition (C=O bond), respectively [46,47]. However, the peaks of GO-MW slightly blue shifted around 3-4 nm.…”

Section: Uv-vis Spectroscopymentioning

confidence: 98%

Spectroscopic studies on reduced graphene oxide behaviour in multi-step thermal reduction

Aditya¹,

Hardiansyah²

2022

Adv. Nat. Sci: Nanosci. Nanotechnol.

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Graphene’s excellent electrical, mechanical, thermal and optical properties make it one of the most desirable materials for diverse applications. Nevertheless, mass producing graphene has been a challenge since the first discovery in 2004. Here, we conducted a fast, green and safe method: multi-step thermal reduction (MSTR) process combining the use of commercial microwave and conventional furnace as the first and second steps, respectively to reduce graphene oxide (GO). Both steps used common tools in a short time to minimise investment. By evaluating several characterisation methods, we show that the first step partially reduces GO by decomposing most hydroxyls, creating a double interlayer spacing distance of 9.381 Å and 3.590 Å with retained hydrophilic property. Meanwhile, the second step further decomposes oxygen functional groups, recovers structural defects and creates a porous layered structure with an average interlayer spacing distance of 3.504 Å, 3.413 Å and 3.393 Å for temperatures of 500, 650 and 800 °C, respectively. In short, MSTR is a viable option to mass produce graphene-based material with desired properties.

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Section: Uv-vis Spectroscopymentioning

confidence: 98%