【摘要】 目前，二氧化氯（ClO₂）消毒剂已成为最受人们青睐的绿色消毒剂之一。虽然人们广泛应用ClO₂消毒剂于各个领域，但有关ClO₂浓度检测的研究报道却比较少。因此，开发新型敏感材料用于检测液相ClO₂显得尤为重要。以聚吡咯为氮源，与KOH混合烧结后得到的含氮多孔碳（NPC）作为基底，负载金纳米粒子后经高温煅烧去除表面活性剂，得到含氮多孔碳负载金纳米粒子催化剂（NPC-Au-P）。与传统方法制备的氮掺杂碳负载金纳米粒子相比，NPC-Au-P中多孔结构可限域金纳米粒子，使其在经过高温煅烧后仍可以保持较小的尺寸，因此具有较高的催化活性。在电化学检测液相ClO₂方面，NPC-Au-P表现出较高的灵敏度（29.77L·mA/mol）)以及较低的检出限（0.12μmol/L）。更多还原

【Abstract】 At present, chlorine dioxide（ClO₂） has become one of the most popular green disinfectants. Although ClO₂ disinfectant has been widely used in various domains, there are few survey reports on the detection of ClO₂ concentration. Therefore, it becomes an urgent demand to develop new catalyst materials for detection of ClO₂ in liquid phase. Using polypyrrole as the nitrogen source, the N-doped porous carbon（NPC） is obtained by mixing and annealing with KOH as the substrate. After the loading of gold nanoparticles, the surface active agent is removed by high-temperature pyrolysis, and the Au nanoparticles embedded in N-doped porous carbon catalyst（NPC-Au-P） are obtained. Compared with the N-doped carbon supported Au nanoparticles prepared by traditional methods, the porous structure of NPC-Au-P can limit the domain of Au nanoparticles, which can maintain a smaller size after high temperature pyrolysis, so it has higher catalytic activity. For electrochemical detection of ClO₂ in the liquid phase, NPC-Au-P has a high sensitivity of 29. 77 L·m A/mol and a low detection limit of 0. 12 μmol/L.更多还原