The research conducted at Xi'an Jiaotong University in China focused on enhancing the efficiency of hydrogen production by optimizing gas product transfer during water electrolysis. The study employed high-speed photography and electrochemical techniques to analyze the process of single hydrogen bubble evolution on a Pt microelectrode surface. The results indicated a significant improvement in efficiency with a decrease in absolute potential and an increase in reaction temperature. A comprehensive model was developed to estimate bubble coverage on the microelectrode, considering bubble radius and current as crucial parameters for evaluating mass transfer coefficients. The study highlighted the importance of bubble-induced micro-convection as the primary mass-transfer mechanism for gas products at high current densities, leading to increased efficiency during bubble growth. Additionally, the research findings suggested that the mass transfer coefficient varied during different stages of bubble growth, influenced by factors like inertia and chemical reactions. Overall, the study provides valuable insights for optimizing gas product transfer within water electrolysis systems to enhance hydrogen production efficiency.