Carbon nanorods (CNRs) are significant one-dimensional carbon-based nanostructured materials. A new method to prepare direct growth fast-standing carbon nanorod as a promising electrode in symmetric supercapacitor applications has been explored. In this study, the CNRs are directly grown on SS plate in the three-zone horizontal chemical vapor deposition unit. The hydrogen free environment is used to grow the CNRs. The substrate position was studied by controlling the substrate temperature, time and precursor gas flow rate. Raman, Fourier transform infrared spectra (FTIR), high-resolution transmission electron microscopy (HR-TEM) explored CNRs formation. The CNRs are well assembled in the substrate and showed excellent electrical contact with it. The biological SP-150 instrument measured electrochemical activity of CNR-developed electrodes. The symmetric device was fabricated with two same electrodes and the device energy and power density was studied. Symmetric supercapacitor devices expressed 22 W h/kg energy density at low 1 A/g. The 96.65% capacity is maintained for 10,000 charge discharge cycles in symmetrical supercapacitor device.

碳纳米棒（CNR）是重要的一维碳基纳米结构材料。已经探索了一种制备直接生长快速支撑碳纳米棒的新方法，作为对称超级电容器应用中的一种有前途的电极。在这项研究中，CNRs 直接生长在三区水平化学气相沉积装置中的 SS 板上。无氢环境用于生长 CNR。通过控制衬底温度、时间和前体气体流速来研究衬底位置。拉曼、傅里叶变换红外光谱 (FTIR)、高分辨率透射电子显微镜 (HR-TEM) 探索了 CNRs 的形成。CNR 很好地组装在基板中，并显示出良好的电接触。生物 SP-150 仪器测量了 CNR 开发的电极的电化学活性。对称器件由两个相同的电极制成，并研究了器件的能量和功率密度。对称超级电容器装置在低 1 A/g 时表现出 22 W h/kg 的能量密度。在对称超级电容器装置中，96.65% 的容量可保持 10,000 次充放电循环。