通过表面改性等方法开发出的选择性吸附剂已经在储氢、气体分离等领域具有较好的应用潜力。然而，现有吸附剂很难同时兼具选择性好、吸附量大。其原因在于不能从微观上透彻地理解多组分气体的吸附机理，不能由实验得到孔隙结构完全可调的吸附剂。本项目拟采用磁控溅射方法，在多孔型六方氮化硼纤维表面溅射铁磁形状记忆合金薄膜，利用铁磁形状记忆合金薄膜的磁控应变性能，通过外加磁场的强弱，控制多孔型六方氮化硼纤维孔隙大小及表面形貌，实现孔隙结构可调的目的。同时研究薄膜的形成过程及其影响因素，探讨铁磁形状记忆合金多晶薄膜磁致应变的微观机制，研究磁致应变对多孔型六方氮化硼纤维孔隙结构、孔大小及孔表面形貌的影响，研究在不同磁场强度下，经铁磁形状记忆合金修饰的多孔型六方氮化硼纤维的比表面积变化情况以及气体吸附性能。

The selective adsorption agent by surface modification has good potential application in hydrogen storage, gas separation, etc.. However, the existing adsorbent is difficult to both good selectivity, high adsorption capacity. The reason is not from the microscopic understanding of multicomponent gas adsorption mechanism, adsorption agent can not be obtained by experiment fully adjustable pore structure. The project intends to adopt the magnetron sputtering method, the porous nitride boron fiber surface sputtering ferromagnetic shape memory alloy thin films, use strain properties of ferromagnetic shape memory alloy thin films, the porous nitride boron fiber pore size, surface morphology and pore structure can be adjusted to achieve by the external magnetic field strength. Forming process and influencing factors of film. The microscopic mechanism of ferromagnetic shape memory alloy thin film magnetostrictive strain. Effect of magnetostrictive strain on the porous boron nitride fiber pore size and pore structure, pore surface morphology. Research in different magnetic field strength, the porous boron nitride fiber ferromagnetic shape memory alloy modified surface changes and gas adsorption properties.