In this work, defect-engineered carbon nanotube networks are grown in situ on a 316L stainless steel substrate using chemical vapor deposition and an annealing treatment. The defective carbon nanotube networks can be applied directly as electrodes for the simultaneous determination of ascorbic acid and uric acid using cyclic voltammetry and differential pulse voltammetry. Carbon nanotube networks annealed at 500 °C enable simultaneous determination of ascorbic acid and uric acid with linear responses from 100 to 3000 μM and from 10 to 150 μM, respectively. The excellent electrocatalytic activity of the defective carbon nanotube networks is attributed to the engineered defects and the large number of exposed edge planes.

在这项工作中，通过化学气相沉积和退火处理，在316L不锈钢基板上原位生长缺陷工程化的碳纳米管网络。有缺陷的碳纳米管网络可以直接用作电极，使用循环伏安法和差分脉冲伏安法同时测定抗坏血酸和尿酸。在500°C下退火的碳纳米管网络能够同时测定抗坏血酸和尿酸，线性响应分别为100至3000μM和10至150μM。有缺陷的碳纳米管网络的出色的电催化活性归因于工程缺陷和大量暴露的边缘平面。