The metal/oxide heterointerface delivered by solid-based exsolution strategy: A review.

• A detailed review on metal/oxide heterointerface delivered by exsolution. • A comprehensive comparison among various strategies constructing metal/oxide heterointerface. • The mechanism understanding, control factor, and current advances of exsolution in heterocatalysis. • The enhancement factor, current challenges and future research directions of exsolution. The heterointerface consisting of metallic nanoparticles dispersed on oxide support represents one of the most important footstones for plenty of matured and emergent chemical reactions. Such kind of catalytic platforms were conventionally prepared by gas-based or liquid-based deposition methods, which suffer from the long-standing challenges of poor metal-oxide adhesion and durability. Alternatively, the emergence of solid-based exsolution strategy shows promising opportunities to deliver uniformly distributed metal nanoparticles with high activity, robustness, reproducibility and tunable functionality. With this regard, in this review, we will summarize the state-of-the-art understanding of the mechanistic insight, control parameters, and most recent advances of this practical strategy in heterocatalysis. We also quantitively analyze the enhancement factor resulting from exsolution manipulation in recent years and point out its unresolved challenges and future perspective. [ABSTRACT FROM AUTHOR]