Hydrogen peroxide (H₂O₂) sensing and oxygen reduction reaction (ORR) has considered to be a highly desirable in the areas of sensing and energy production. In recent years, researchers focus on the replacement of noble metal-based electrocatalyst used for the ORR and H₂O₂ sensing by low-cost materials. In this current work, we have synthesized carbon black supported LaMnO₃ ([email protected]) via dry particle coating method and studied its electrocatalytic activity towards ORR and H₂O₂ sensing. The characterization of synthesized [email protected] was performed by using field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD) spectroscopy, X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy techniques. Furthermore, the synergistic effect between LMO and carbon was established through electrochemical measurements. In case of ORR, our prepared [email protected] composite possess longer life-time (89.8%) than 20 wt% Pt/C (77.6%). In another case, this electrocatalyst ([email protected]) owns wide working range, low limits of detection and high sensitivity for the determination of H₂O₂. The experimental data of [email protected] towards the electrochemical sensing of H₂O₂ and ORR demonstrates its potential applications in the construction of sensors and energy generation devices.

在感测和能量产生领域中，过氧化氢（H ₂ O ₂）感测和氧还原反应（ORR）被认为是高度期望的。近年来，研究人员致力于用低成本材料替代用于ORR和H ₂ O ₂感测的贵金属基电催化剂。在当前的工作中，我们通过干法颗粒涂覆法合成了炭黑负载的LaMnO ₃（[受电子邮件保护]），并研究了其对ORR和H ₂ O _2的电催化活性。感应。通过使用场发射扫描电子显微镜（FESEM），能量色散X射线（EDX）光谱，透射电子显微镜（TEM），X射线衍射（XRD）光谱，X射线对合成的[受电子邮件保护的]进行表征光电子能谱（XPS）和拉曼光谱技术。此外，通过电化学测量确定了改性活生物体与碳之间的协同作用。对于ORR，我们制备的[受电子邮件保护的]复合材料的使用寿命（89.8％）比20 wt％的Pt / C（77.6％）长。在另一种情况下，这种电催化剂（[受电子邮件保护]）具有较宽的工作范围，较低的检测限和对H ₂ O ₂测定的高灵敏度。对H ₂ O ₂和ORR进行电化学检测的[受电子邮件保护]的实验数据证明了其在传感器和能量产生装置的构造中的潜在应用。