As a new porous non-oxide material, porous boron nitride has attracted increasing interests due to its plenty of unique properties such as large specific surface area, tunable pore size, excellent chemical inertness and thermal stability, which are useful in catalysis, hydrogen storage, gas adsorption and separation. Based on the different pore sizes, porous boron nitride is divided into four types, namely, microporous boron nitride, mesoporous boron nitride, macroporous boron nitirde and hierarchical boron nitride. In this review, recent development of porous boron nitride with different structures is summarized. The synthesis and properties of different types of boron nitride are emphatically described, and the advantages and disadvantages of various synthesis methods are discussed. Finally, the promising applications and development directions of porous boron nitride are highlighted. Contents
1 Introduction
2 Synthesis methods of porous boron nitride materials
2.1 Template synthesis
2.2 High pressure reaction synthesis
3 Microporous boron nitride materials
4 Mesoporous boron nitride materials
4.1 Ordered mesoporous boron nitride materials
4.2 Disordered mesoporous boron nitride materials
5 Macroporous boron nitride materials
6 Hierarchical porous boron nitride materials
7 Conclusion and outlook