Carbon support in commercial Pt/C suffers severe corrosion in harsh electro-oxidation environments caused by anode potentials. Alternative support should be developed to improve the quality, activity, and durability of platinum by studying the relationship between platinum and support. Here, we prepare fluorine-free Ti₃C₂T_X (T = –OH, –O) powder via a sodium hydroxide etching process to fix Pt nanoparticles. The resulting fluorine-free Ti₃C₂T_X/Pt composite features stable layered structure and metallic properties. As an electrocatalyst for hydrogen evolution reaction (HER), the overpotential of fluorine-free Ti₃C₂T_X/Pt in a 0.5 M H₂SO₄ water solution at − 10 mA/cm⁻² is only 180 mV and 25% lower than that of fluorine-containing Ti₃C₂T_X/Pt. The HER performance remains stable after 80 h of reaction. The improvement in HER activity of the fluorine-free Ti₃C₂T_X/Pt can be attributed to the excellent electrical conductivity, more active sites, less inert surface groups, and electronic effects between the Pt and surface functional groups of alkali-etched Ti₃C₂T_X. This work broadens the application of fluorine-free Ti₃C₂T_X in the field of hydrogen evolution reactions.

商用Pt / C中的碳载体在恶劣的电氧化环境中会受到阳极电势的严重腐蚀。应该通过研究铂与载体之间的关系，开发替代性载体，以提高铂的质量，活性和耐用性。在这里，我们通过氢氧化钠蚀刻工艺制备了无氟的Ti ₃ C ₂ T _X（T = –OH，–O）粉末，以固定Pt纳米颗粒。所得的无氟Ti ₃ C ₂ T _X / Pt复合材料具有稳定的层状结构和金属性能。无氢Ti ₃ C ₂的超电位作为产氢反应（HER）的电催化剂在0.5 MH ₂ SO ₄水溶液中的T _X / Pt在-10 mA / cm ^-2下仅比含氟的Ti ₃ C ₂ T _X / Pt低180 mV，且低25％。反应80小时后，HER性能保持稳定。无氟Ti ₃ C ₂ T _X / Pt的HER活性的提高可归因于优异的电导率，更多的活性位，更少的惰性表面基团以及Pt和碱蚀刻的表面官能团之间的电子效应的Ti ₃ c ^ ₂ Ť _X。这项工作拓宽了无氟钛的应用范围₃ C ₂ T _X在析氢反应领域。