| 硼-氮共掺杂垂直石墨烯电极的制备及其葡萄糖检测性能 |
| Preparation of boron-nitrogen co-doped vertical graphene electrode for glucose detection |
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| 摘要: 采用电子辅助热丝化学气相沉积技术制备了垂直石墨烯(VG)、硼掺杂垂直石墨烯(BVG)、氮掺杂垂直石墨烯(NVG)及硼-氮共掺杂垂直石墨烯(BNVG)薄膜,采用扫描电子显微镜、透射电子显微镜、X射线光电子能谱及Raman光谱仪表征了形貌、微结构及成分,并采用电化学方法分析了其作为表皮传感电极的电化学性能。结果表明,BNVG薄膜由垂直于基片生长的二维纳米片排列成了三维多孔网结构,这些纳米片的硼和氮原子分数达到3.78%和2.75%。BNVG薄膜电极的皮肤接触电阻低至4.5 kΩ,对于葡萄糖的响应浓度范围在0.001~10 000 μmol·L-1,检测限低至0.03 μmol·L-1,具有良好的抗干扰能力及长期稳定性。 |
| 关键词: 掺杂石墨烯 化学气相沉积 垂直生长 表皮电极 汗液葡萄糖 |
| 基金项目: 国家自然科学基金(No.62271350)和天津市自然科学基金重点项目(No.20JCZDJC00290)资助。 |
| Abstract: In this work, vertical graphene (VG) and boron-doped vertical graphene (BVG), nitrogen-doped vertical graphene (NVG), and B-N co-doped vertical graphene (BNVG) films were prepared by electron-assisted hot-filament chemical vapor deposition. Scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy were used to characterize the morphology, microstructure, and composition, and the electrochemical performance of the skin-sensing electrode was analyzed by electrochemical methods. The results show that the BNVG film has a three-dimensional porous network structure, which is formed by interlacing many vertically grown graphene nanosheets. The content of B and N atoms (atomic fraction) in these nanosheets reached 3.78% and 2.75%, respectively. Furthermore, the skin-contact resistance of the BNVG film electrode was only 4.5 kΩ, which was lower than that of the VG electrode. The BNVG film electrode-based sensor had a wide linear range of 0.001 to 10 000 μmol·L-1, and the detection limit was as low as 0.03 μmol·L-1 (S/N=3). Moreover, the developed sensing electrode showed excellent anti-interference ability and long-term stability (45 d). |
| Keywords: doped graphene chemical vapor deposition vertical growth epidermal electrode sweat glucose |
| 投稿时间：2022-12-03 修订日期：2023-03-27 |
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| 陈政,翟妮妮,高素华,李明吉,李红姬.硼-氮共掺杂垂直石墨烯电极的制备及其葡萄糖检测性能[J].无机化学学报,2023,39(5):785-793. |
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