摘要
金属氢化物和轻质配位金属氢化物以其高质量储氢密度和高安全性成为了氢气储存的理想解决方案之一。然而,较高的工作温度限制了其进一步发展和应用。反应性氢化物复合体系(RHCs)通过改变放氢反应路径、降低反应焓变,与单一储氢材料相比极大地提升了放氢热力学性能。此外,进一步结合催化掺杂方法,可以实现RHCs动力学性能和循环性能的高效同步提升。本文系统性综述了RHCs的近期研究进展,对包括Li-Mg-B-H体系、Li-Mg-N-H体系在内的多种RHCs的放氢机制和催化掺杂改性研究成果进行了详细的讨论,并针对RHCs当前面临的挑战展望了未来研究的重点和发展方向。
Metal hydrides and lightweight coordinated metal hydrides have become a preferred solution for hydrogen storage owing to their high hydrogen storage density and high security.Nevertheless,the harsh operation temperature for dehydrogenation severely limits their further development and application.Benefitting from the alteration of the dehydrogenation pathway and the reduction in reaction enthalpy,reactive hydride composites RHCs have been shown to significantly enhance the hydrogen desorption thermodynamics in comparison with single hydrogen storage materials.Furthermore,the effective enhancement of both the kinetic and cycling properties can be achieved by the combination of catalytic doping methods.In this paper,a systematic review of recent research progress in the field of RHCs was presented,while the hydrogen desorption mechanism and the research progress on catalytic doping modification of a variety of RHCs were discussed in detail.Finally,the focus and development direction of future research were outlined based on the challenges currently being faced by RHCs.
作者
王一菁
程嘉毅
孙钰
姜雅茹
刘亚菲
WANG Yijing;CHENG Jiayi;SUN Yu;JIANG Yaru;LIU Yafei(Key Laboratory of Advanced Energy Materials Chemistry Ministry of Education,Nankai University,Tianjin 300071,China;Haihe Laboratory of Sustainable Chemical Transformations,Tianjin 300192,China)
出处
《金属功能材料》
2025年第5期32-47,共16页
Metallic Functional Materials
基金
国家重点研发计划项目(2021YFB4000604)
国家自然科学基金项目(52271220)
111计划项目(B12015)
中央高校基本科研基金
桂林市科学研究与技术开发计划项目(202101024)。
关键词
反应性氢化物复合体系
固态储氢
催化掺杂
反应焓
金属氢化物
配位氢化物
reactive hydride composites
solid-state hydrogen storage
catalytic doping
enthalpy
metal hydride
coordinated hydride
