Effect of Thermal Reduction Temperature in the Air on the Structure and Anti-corrosion Performance of Graphene Oxide

LIU Qunfeng; LIANG Wenzi; XU Changan

doi:10.19554/j.cnki.1001-3563.2026.09.019

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (9) : 177-185. DOI: 10.19554/j.cnki.1001-3563.2026.09.019

Advanced Materials

Effect of Thermal Reduction Temperature in the Air on the Structure and Anti-corrosion Performance of Graphene Oxide

LIU Qunfeng¹, LIANG Wenzi², XU Changan^3,*

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Abstract

The work aims to investigate the effects of different heat treatment temperatures on the thermal reduction behavior of graphene oxide (GO) under air conditions and reveal the intrinsic relationship among "temperature - structure - intrinsic anti-corrosion performance". In an air environment, the GO was subject to thermal reduction treatment at temperatures of 400, 600, and 800 °C, respectively. By employing various characterization methods such as Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, Raman spectroscopy, scanning electron microscopy, atomic force microscopy, and electrochemistry, the regulatory laws of temperature on the chemical structure, crystal morphology, defect density, and surface morphology of GO, as well as its effects on the intrinsic anti-corrosion performance, were analyzed. As the heat treatment temperature increased, the oxygen-containing functional groups in GO gradually disappeared, the O/C ratio significantly decreased, but the carbon skeleton defects increased, pores appeared on the surface, and the layer stacking mode changed. At a temperature of 800 ℃, GO underwent a competitive reaction between deep reduction and partial oxidation, and large-sized pores and significant undulations were formed on the surface. The reduced GO (rGO-800) obtained under these conditions exhibited the best intrinsic anti-corrosion performance, with an impedance modulus of 4 133.8 Ω∙cm² and a corrosion current as low as 1.694 × 10^-6A. This work reveals the intrinsic relationship among "temperature - structure - intrinsic anti-corrosion performance" during the heat treatment process, clarifies the regulatory mechanism of temperature on the thermal reduction behavior of GO, and provides experimental basis and theoretical guidance for the preparation of reduced GO materials with controllable structures and optimized performance.

Key words

graphene oxide / thermal reduction / structural regulation / surface morphology / anti-corrosion

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LIU Qunfeng, LIANG Wenzi, XU Changan. Effect of Thermal Reduction Temperature in the Air on the Structure and Anti-corrosion Performance of Graphene Oxide[J]. Packaging Engineering. 2026, 47(9): 177-185 https://doi.org/10.19554/j.cnki.1001-3563.2026.09.019

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