CAJ | 학술논문

为抑制硼氢化锂（LiBH4）的吸湿性，提高其贮存和使用稳定性，用石蜡和聚碳酸酯通过溶剂旋蒸法对其表面进行包覆，用 X 射线光电子能谱、漫反射红外光谱、拉曼光谱和扫描电镜研究了包覆 LiBH4的表面结构，考察了其在空气中的稳定性。结果表明，LiBH4表面形成了较均匀的包覆层，表面包覆度可达82％；在空气中放置1h 后包覆缺陷处可被反应产物有效覆盖，阻碍了进一步反应，使 LiBH4的相对稳定度提高了50．7％。
위억제붕경화리（LiBH4）적흡습성，제고기저존화사용은정성，용석사화취탄산지통과용제선증법대기표면진행포복，용 X 사선광전자능보、만반사홍외광보、랍만광보화소묘전경연구료포복 LiBH4적표면결구，고찰료기재공기중적은정성。결과표명，LiBH4표면형성료교균균적포복층，표면포복도가체82％；재공기중방치1h 후포복결함처가피반응산물유효복개，조애료진일보반응，사 LiBH4적상대은정도제고료50．7％。
To restrain the hygroscopicity of lithium borohydride and improve its stability during storage and application, olefin and polyester carbonate were used to coat on the surface of lithium borohydride by solvent evaporation method.The surface structure of coated lithium borohydride was studied by X-photoelectron energy spectra,diffuse reflection infrared spectra,roman spectra and scanning electron microscope,and its stability in the air was examined.The results show that the uniform coating layer is formed on the surface of coated lithium borohydride and the covered degree reaches to 82%.The defective surface can be effectively covered by the reaction product after exposed in the air for one hour to hinder the further reaction and make the relative stability degree increase by 50.7%.