Wettability‐Induced Mass Transfer for Catalytic Gas Generation in Gas–Liquid–Solid Tri‐Phase System

ABSTRACT Mass transfer plays a crucial role in catalytic reactions, however, few studies have systematically integrated mass transfer principles with wettability‐induced surroundings for gas evolution in gas–liquid–solid tri‐phase system. This review explores the underlying relationship between mass transfer and wettability‐controlled materials, focusing on wettability‐induced mass transfer mechanisms, material design strategies, and relevant characterizations across various photo‐/electrocatalytic fields. Gas evolution efficiency is influenced by reactant concentration gradient and mass transfer ratios, wettability has profound impacts on the influence factors, particularly on solid surfaces and solid–liquid interfaces. Wettability‐induced principles during reactants absorption, catalyst interfacial reaction, and gas product desorption were summarized and analyzed by combining mass transfer theories with different wetting states quantitatively, clarifying the relationship between specific structural features and improved catalytic efficiency, and linking visual data to mechanistic discussions. This review effectively integrates wettability‐control strategies with gas‐generated mass transfer principles, providing valuable theoretical insights and technical support for future photo‐/electrocatalytic industrial applications.