X-ray induced carbon coating on carbon nanotubes

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• 作者：Tian Xie ; Lili Bai ; Jinyin Liu ; Guanqi Zhao ; Xuhui Sun ; Jun Zhong ; ^{jzhong@suda.edu.cn}
• 刊名：Carbon
• 出版年：2013
• 出版时间：May, 2013
• 年：2013
• 卷：56
• 期：Complete
• 页码：385-388
• 全文大小：609 K

文摘

The formation of a carbon coating on carbon nanotubes (CNTs) was observed in X-ray microscopy experiments. X-ray absorption near-edge structure (XANES) spectroscopy showed that the coating originated from the lacey carbon on the substrate, which was heated by the X-ray beam and then deposited on CNTs. The coating shows some fingerprint features around the ¦Ð* peak of the C 1s XANES spectrum, which were widely observed in literature but attributed to chemical modification or interfacial interaction in carbon nanomaterials. Our results suggest that the X-ray induced coating could be a possible reason for those XANES features.