Energy conversion from chemical to electrical energy through electrochemical processes using fuel cells is a promising advanced technology to address global environmental issues. However, the development of cathode materials for proton exchange membrane fuel cells (PEMFCs) still faces challenges due to their practical requirements for activity and stability. Introducing oxides into the electrocatalysts is an important way to improve performance. Here, we propose a one-pot hydrothermal synthesis to load Pt and TiO₂ nanoparticles (NPs) onto the treated carbon (TC). Through the TiO₂ reconciliation between the Pt NPs and the carbon support, the tightly bound Pt–TiO₂–TC electrocatalyst shows excellent activity and stability in the oxygen reduction reaction (ORR) due to the strong electronic interaction. At 0.9 V vs. reversible hydrogen electrode, the Pt–TiO₂–TC electrocatalyst has about twice the specific activity (SA) and mass activity (MA) of commercial Pt/C. Moreover, the decline of Pt- SA and MA in Pt–TiO₂-TC after the accelerated durability test (ADT) was 4.2% and 12.3%, respectively. Therefore, we strongly recommend hybrid metal-oxide-carbon materials with high conductivity, electronic interaction, and carbon corrosion resistance as support materials for Pt NPs to develop Pt-based electrocatalysts for fuel cell applications.

使用燃料电池通过电化学过程将能量从化学能转换为电能是解决全球环境问题的有前途的先进技术。然而，由于对活性和稳定性的实际要求，质子交换膜燃料电池 (PEMFC) 阴极材料的开发仍然面临挑战。将氧化物引入电催化剂是提高性能的重要途径。在这里，我们提出了一种单锅水热合成法，将 Pt 和 TiO ₂纳米粒子 (NPs) 加载到处理过的碳 (TC) 上。通过Pt NPs 和碳载体之间的TiO _{2调和，紧密结合的 Pt-TiO 2}由于强电子相互作用，TC电催化剂在氧还原反应（ORR）中表现出优异的活性和稳定性。在 0.9 V vs. 可逆氢电极下，Pt-TiO ₂ -TC 电催化剂的比活度 (SA) 和质量活度 (MA) 约为商用 Pt/C 的两倍。此外，在加速耐久性试验（ADT）后，Pt-TiO ₂ -TC 中 Pt-SA 和 MA 的下降分别为 4.2% 和 12.3%。因此，我们强烈推荐具有高导电性、电子相互作用和碳耐腐蚀性的杂化金属-氧化物-碳材料作为 Pt NPs 的支撑材料，以开发用于燃料电池应用的 Pt 基电催化剂。