硼氢化钠储氢材料的制备与性能研究  

Study on Preparation and Properties of Sodium Hydrogen Storage Materials

作　　者：艾思奇[1] 齐春雷[1] 张思远[1] 

机构地区：[1]中国石油吉林石化公司化工动力一厂,吉林吉林132021

出　　处：《吉林化工学院学报》2015年第8期21-23,共3页Journal of Jilin Institute of Chemical Technology

摘　　要：利用周期换向脉冲电流电解NaBO2制备配位储氢化合物NaBH4,利用碘量滴定法对电解产物进行定性定量测试,实现了在高碱性浓度范围内通过活性物质添加由偏硼酸钠电化学还原制备硼氢化钠的可能性,以电子作为还原剂代替传统合成方法中的金属钠,该合成工艺绿色环保且成本低廉;对电解获得的硼氢化钠进行水解放氢性能研究,金属配位储氢化合物水解放氢具有安全、装置简单和能量密度高等优点;实验中研究了硼氢化钠水解催化放氢系统,探讨不同体系催化剂、稳定剂等因素对系统放氢性能的影响.通过对制得的异相催化剂成分进行表征,并测得不同条件下催化水解反应速率数据,系统的研究了通过化学掺杂制备的Ni-B和Co-B催化剂的催化性能.The periodic reverse pulse current was used to prepare coordination compound NaBH4. The quantitative test method of electrolytic products is iodometric titration method. This study realizes the possibility of the implementation of active substances added by the electrochemical reduction of sodium metaborate in preparing sodium borohydride in the alkali concentration range. In this study,the electron is a reducing agent to replace the traditional metal sodium in the synthetic method,which is of green environmental protection and low cost. The sodium borohydride is obtained from the study of electrolytic hydrogen evolution properties of hydrolysis,and the hydrolysis of metal coordination compound will produce hydrogen. The way has the advantages of safety,simple devices and high energy density. This paper studies the sodium borohydride hydrolysis hydrogen system to explore the effect of different catalysts,stabilizers and other factors on the performance of hydrogen system. Based on the characterization of the composition of the heterogeneous catalysis and the reaction rate data of the catalyst under different conditions,this paper studys the catalytic performance of the catalyst prepared by chemical doping of Ni-B and Co-B.

关 键 词：NABH4 电解制备 催化水解 循环利用 

分 类 号：TQ225.2[化学工程—有机化工] TQ643.36