广东工业大学学报 ›› 2018, Vol. 35 ›› Issue (01): 77-83.doi: 10.12052/gdutxb.170117

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纳米NdCl3掺杂LiBH4去稳定化体系的放氢性能研究

蔡伟通1, 侯建明2   

  1. 1. 广东工业大学 材料与能源学院, 广东 广州 510006;
    2. 广东环境保护工程职业学院 机电工程系, 广东 佛山 528216
  • 收稿日期:2017-06-27 出版日期:2018-01-09 发布日期:2017-12-22
  • 作者简介:蔡伟通(1986-),男,讲师,博士,主要研究方向为储氢材料.
  • 基金资助:
    广东工业大学“青年百人计划”科研启动基金资助项目（220413551）

An Investigation on Dehydrogenation Performance of LiBH4 Destabilized by Nanosized NdCl3

Cai Wei-tong1, Hou Jian-ming2   

  1. 1. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China;
    2. Department of Mechanical and Electrical Engineering, Guangdong Polytechnic of Environmental Protection Engineering, Foshan 528216, China
  • Received:2017-06-27 Online:2018-01-09 Published:2017-12-22
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摘要： 采用高能球磨方法制备LiBH4-NdCl3储氢材料体系，系统研究了预球磨、球磨时间、球粉比和掺杂量等工艺参数对体系的影响规律，阐明NdCl3对LiBH4放氢过程的作用机制. 研究发现，NdCl3对LiBH4放氢性能的改善作用是通过去稳定化反应进行的. 通过预球磨使NdCl3纳米化并能够提供额外的表面能，促进去稳定化反应的进行，从而有效地改善LiBH4的放氢性能. 最佳的球磨时间和球粉比与NdCl3的原始状态有关，应根据颗粒大小、晶粒尺寸、表面状态等因素做出最优选择. 增加NdCl3掺杂量能够提高LiBH4与NdCl3的接触面积，提升反应效率，进而显著提高LiBH4的放氢性能.

关键词: 氢能, 储氢材料, 去稳定化, LiBH4, NdCl3

Abstract: LiBH4-NdCl3 hydrogen storage system was prepared through high energy ball milling. The mechanism of NdCl3 on LiBH4 and the effects of pre-milling, milling time, ball-to-powder ratio, doping amount were systematically investigated. The results reveal that NdCl3 reacts with LiBH4 through destabilization effect showing a superior dehydrogenation performance. Reducing the NdCl3 particle into nanosize which possesses higher surface energy can effectively modify the dehydrogenation of LiBH4. The best balling time and ball-to-powder ratio are related to the original state of NdCl3 with respect to particle size, crystal size and surface situation. Enhancing the contact area between LiBH4 and NdCl3 via increasing doping amount of NdCl3 is one of the effective ways to improve the dehydrogenation performance of LiBH4.

Key words: hydrogen energy, hydrogen storage material, destabilization, LiBH4, NdCl3

中图分类号: 

  • TK91
[1] 李爱菊； 张仁元； 周晓霞； . 化学储能材料开发与应用[J]. 广东工业大学学报, 2002, 19(1): 81-84.
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