Thin films and coatings are specialized layers with thicknesses ranging from a few nanometers to several micrometers, widely used to enhance wear resistance, corrosionCorrosion protection, optical performance, and functional durability. Understanding and optimizing their deposition processesProcess, structural features, and mechanical behavior is essential to advance their performance and expand their applications in fields such as nanotechnology, electronics, and energy conversion systems. In this context, platinum stands out as a material of great interest due to its outstanding catalytic propertiesProperties, enabling a wide range of anodic and cathodic reactions. However, the large-scale use of Pt is economically unfeasible, driving the search for strategies to reduce its consumption without compromising catalytic efficiency. A promising alternative is the modification of more cost-effective substrates through thin Pt coatings, ensuring resistance to corrosive environments and high electrocatalytic activity at lower cost. In this work, thermodynamicThermodynamic and kineticKinetic studies of Pt electrodeposition on titanium substrates from PtCl42− ions were carried out. The experimental results demonstrated that a uniform Pt deposit on titanium can be achieved by applying a current densityDensity of − 250 mA, highlighting the potential of Pt–Ti thin-film systems as efficient and cost-effective electrocatalysts.