Improving the hydrogen storage performance of lithium borohydride by Ti3C2 MXene |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454000, PR China;2. School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, PR China;1. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) and Centro Atómico Bariloche (CNEA), Av. Bustillo 9500, R8402AGP, S. C. de Bariloche, Río Negro, Argentina;2. Instituto Balseiro, Universidad Nacional de Cuyo, Argentina;1. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, PR China;2. School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China;3. Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Hangzhou 310013, PR China;4. School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, PR China;1. Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China;2. Central Iron & Steel Research Institute, Advanced Technology & Materials Co., Ltd, Jiangsu JITRI Advanced Energy & Materials Research Institute Co., Ltd., No.76 Xueyuannanlu, Haidian District, Beijing, 100081, China;3. Advanced Materials Research Institute, North China Electric Power University, No.2 Beinonglu Changping District, Beijing, 102206, China;1. Department of Physics and National Centre for Nanosciences & Nanotechnology, University of Mumbai, Vidyanagari, Santacruz (E), Mumbai 400 098, India;2. UM-DAE Centre for Excellence in Basic Sciences, Vidyanagari, Santacruz (E), Mumbai 400 098, India;3. Dipartimento di Fisica, Università degli Studi di Trento, I-38123 Povo, Trento, Italy |
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| Abstract: | Two-dimensional layered material of Ti3C2 has been used to improve the hydrogen desorption properties of LiBH4. The results of temperature-programmed dehydrogenation (TPD) and isotherm dehydrogenation (TD) demonstrate that adding the Ti3C2 contributes to the hydrogen storage performance of LiBH4. The dehydrogenation temperature decreases and the dehydrogenation rate increases with increasing the adding amounts of Ti3C2. The onset dehydrogenation temperature of LiBH4 + 40 wt% Ti3C2 composite is 120 °C and approximately 5.37 wt% hydrogen is liberated within 1 h at 350 °C. Furthermore, the activation energy of LiBH4 + wt.% Ti3C2 is also greatly reduced to 70.3 kJ/mol, much lower than that of pure LiBH4. The remarkable dehydrogenation property of the LiBH4+ 40 wt% Ti3C2 may be due to the layered active Ti-containing Ti3C2 and the high surface area of MXene. |
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| Keywords: | Hydrogen storage material Kinetics |
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