Synthesis of Mesoporous Hollow Inorganic Micro-/Nano-structures via Self-templating Methods

Mesoporous hollow inorganic micro-/nano-structures are very promising in various fields such as catalysis,energy and medicine because of their multiple and tunable functions,and their synthetic methodologies have attracted much attention.Compared with conventional hard-template or soft-template methods,the self-templating methods developed recently have many advantages,such as simpler procedures and without using extra costly templates.In this manuscript,the recent developments on the synthesis of mesoporous hollow inorganic mirco-/nano-strctures prepared by the self-templating methods were discussed in details according to the four kinds of different reaction mechanisms,including Ostwald ripening,surface-protected etching,Kirkendall effect and galvanic replacement,respectively.Finally,we concluded with a brief outlook for future research directions.