Abstract The stability and durability of laser-induced graphene (LIG) patterns embedded in polymer substrates are significant for their practical application. However, most of currently reported LIG precursors are facing the dilemma of weak structural controllability, poor resistance to acid/base, or bad processability. In this work, we efficiently converted the synthesized poly (Ph-ddm) into LIG using a straightforward CO2 laser, aiming to find a potential LIG precursor with excellent durability under harsh conditions. The graphene structure of obtained LIG was confirmed by Raman spectra, scanning electron microscope (SEM), transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS). Results indicated that the poly (Ph-ddm)-based LIG showed a low sheet resistance of 35 Ω/sq as well as a high specific surface area of 883 m2/g. And due to the superior properties of poly (Ph-ddm), the LIG patterns exhibited excellent resistance to strong acid/base solutions and high adhesion on the substrate, which ensured their stable application under severe conditions. Besides, potential application of as-prepared LIG was demonstrated in well-performed supercapacitors and electrode for water splitting in an alkaline medium. Based on the results in this work, polybenzoxazine could be a promising precursor for stable and durable LIG preparation.

中文翻译：

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嵌入聚合物基材中的稳定耐用的激光诱导石墨烯图案

摘要 嵌入聚合物基板的激光诱导石墨烯（LIG）图案的稳定性和耐久性对其实际应用具有重要意义。然而，目前报道的大多数LIG前驱体都面临着结构可控性弱、耐酸碱能力差或加工性差的困境。在这项工作中，我们使用直接的 CO2 激光将合成的聚 (Ph-ddm) 有效地转化为 LIG，旨在寻找在恶劣条件下具有出色耐久性的潜在 LIG 前体。通过拉曼光谱、扫描电子显微镜 (SEM)、透射电子显微镜 (TEM) 和 X 射线光电子能谱 (XPS) 证实了所得 LIG 的石墨烯结构。结果表明，基于聚 (Ph-ddm) 的 LIG 显示出 35 Ω/sq 的低薄层电阻以及 883 m2/g 的高比表面积。并且由于聚（Ph-ddm）的优异性能，LIG图案表现出优异的耐强酸/碱溶液性能和对基材的高附着力，确保其在恶劣条件下的稳定应用。此外，所制备的 LIG 在性能良好的超级电容器和用于在碱性介质中分解水的电极中的潜在应用得到了证明。基于这项工作的结果，聚苯并恶嗪可能是稳定耐用 LIG 制备的有前途的前体。所制备的 LIG 的潜在应用在性能良好的超级电容器和用于在碱性介质中分解水的电极中得到了证明。基于这项工作的结果，聚苯并恶嗪可能是稳定耐用 LIG 制备的有前途的前体。所制备的 LIG 的潜在应用在性能良好的超级电容器和用于在碱性介质中分解水的电极中得到了证明。基于这项工作的结果，聚苯并恶嗪可能是稳定耐用 LIG 制备的有前途的前体。