Pechini Method Revisited: From Synthesis Innovation to Multifunctional Materials

Overcoming the single-function limitation of the conventional solution synthesis, we present the approach of Pechini 2.0 – a fluidic platform leveraging dynamic wet-gel states for the design of multifunctional material. This perspective delineates a transition from the conventional crystal and/or powder production (Pechini 1.0) to engineered amorphous integration as exemplified by the following two aspects: (i) core–shell encapsulation to engage mutually exclusive properties (e.g., thermal conductor vs electrical insulator), and (ii) transferable amorphous metal oxide films realizing damage-free van der Waals integration to two-dimensional electronics. By treating amorphous phases as functional end-products rather than transient intermediates, this framework accesses spaces inaccessible to crystalline systems. We further conceptualize Pechini 2.0 as a material innovation tree, projecting three critical trajectories, including uncovering structure–property relationships in noncrystalline oxides, expanding composition spaces toward multianion systems, and bridging lab-scale synthesis with scalable manufacturing. This positions Pechini 2.0 as one key foundation to next-generation material paradigms.