CAJ | 학술논문

以NaBH4，ZnCl2和LiNH2为原料，机械球磨法制备 Zn （BH4）2-LiNH2复合储氢材料．采用 X -射线衍射（XRD）、红外光谱（FTIR）、差示扫描量热-热重分析（DSC-TGA）和扫描电镜（SEM）和吸放氢测试装置等方法表征Zn （BH4）2-LiNH2复合储氢材料的物相、键合特征、热稳定性、储氢性能和形貌．结果表明：Zn（BH4）2-LiNH2复合体系在116℃和193℃时分别发生熔化和热分解．随着放氢温度的升高，体系在150℃时放氢气量为0．015 mol/g．而在200℃时，材料的放氢量增加至0．018 mol/g，提高放氢温度对该体系的放氢动力学影响有限．循环吸氢实验发现（BH4）2-LiNH2复合体系在150℃，0．1 MPa H2条件下不能可逆吸氢．
이NaBH4，ZnCl2화LiNH2위원료，궤계구마법제비 Zn （BH4）2-LiNH2복합저경재료．채용 X -사선연사（XRD）、홍외광보（FTIR）、차시소묘량열-열중분석（DSC-TGA）화소묘전경（SEM）화흡방경측시장치등방법표정Zn （BH4）2-LiNH2복합저경재료적물상、건합특정、열은정성、저경성능화형모．결과표명：Zn（BH4）2-LiNH2복합체계재116℃화193℃시분별발생용화화열분해．수착방경온도적승고，체계재150℃시방경기량위0．015 mol/g．이재200℃시，재료적방경량증가지0．018 mol/g，제고방경온도대해체계적방경동역학영향유한．순배흡경실험발현（BH4）2-LiNH2복합체계재150℃，0．1 MPa H2조건하불능가역흡경．
Zn(BH4 )2 -LiNH2 hydrogen storage materials was prepared by mechanical ball-milling using NaBH4 ,ZnCl2 and LiNH2 as raw materials. The Zn (BH4 )2 -LiNH2 hydrogen storage materials were characterized by means of X -ray diffraction (XRD ), fourier transform infrared spectroscopy (FTIR ), differential scanning calorimeter&DSC-TGA and hydrogen storage device.The results showed that Zn(BH4 )2-LiNH2 composite system melt at 1 16 ℃ and decompose at 193 ℃ respectively.The composite release 0.015 mol/g gas at 150 ℃.At 200 ℃,the amount of gas capacity in Zn(BH4)2 -LiNH2composite system increase to 0.018 mol/g.It is found that enhancing the dehydrogenation temperature of Zn (BH4 )2 -LiNH2 has limited impact on its dehydrogenation dynamics.Zn(BH4 )2 -LiNH2 composite system is irreversible under the condition of 150 ℃and 0.1 MPa H2 .