Surface oxidation and/or corrosion behavior of glass-like carbon in sulfuric and nitric acids, and in aqueous hydrogen peroxide
Surface oxidation and/or corrosion behavior of glass-like carbon in sulfuric and nitric acids, and in aqueous hydrogen peroxide
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玻璃状碳在硫酸、硝酸以及过氧化氢水溶液中的表面氧化和/或腐蚀行为
DOI：
10.1016/j.corsci.2011.08.004
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发表时间：
2011
影响因子：
8.3
通讯作者：
H.Shindo
中科院分区：
文献类型：
--
作者：
K.Nakamura;H.Morooka;Y.Tanabe;E.Yasuda;T.Akatsu;H.Shindo
玻璃状碳 (GLC) 在浓 H2SO4、HNO3 和 H2O2aq 中的表面氧化和/或腐蚀行为。通过扫描电子显微镜 (SEM)、X 射线光电子能谱 (XPS) 和重量变化进行了研究。在 H2SO4 中处理 GLC 后，观察到含硫化学物质的形成，并且重量有所增加。然而，没有观察到形态变化。样品在 HNO3 中处理后，重量最初增加，然后减少。没有观察到含氮化学物质。观察到上层的裂纹形成和剥落。将样品在 H2O2aq. 中处理后，观察到快速失重和空隙形成。
Surface oxidation and/or corrosion behavior of glass-like carbons (GLCs) in concentrated H2SO4, HNO3and H2O2aq. were investigated with scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and by weight changes. With GLCs treated in H2SO4, formation of sulfur-containing chemical species was observed, with some weight gain. However, no change was observed in morphology. With the samples treated in HNO3, the weight initially increased and, then, decreased. No nitrogen-containing chemical species were observed. Crack formation and scaling off of the upper layers were observed. With the samples treated in H2O2aq., rapid weight loss and void formation were observed.