摘要
氢能被认为是绿色、清洁的新型能源形式,在未来的“碳中和碳达峰”战略中扮演重要的作用。相比于液化储氢方式,固态储氢具有运输和储存安全,使用条件温和等优势。其中NaBH_(4)是目前固态储放氢中研究最为广泛和深入的一种。采用改进的液相沉积-气相还原法可控制备了平均粒径为1.1 nm的超微Ru/rGO催化剂,采用透射电子显微镜对其形貌和物相进行了表征。考察了催化剂的量、NaOH浓度、NaBH_(4)浓度和反应温度对NaBH_(4)水解产氢活性的影响。同时研究了催化剂的循环稳定性以及循环后Ru/rGO的形貌和Ru尺寸分布,该工作将其超微Ru催化剂催化NaBH_(4)水解制氢提供一定的理论和实践参考。
Hydrogen energy is considered as a green and clean new form of energy,playing an important role in the future“carbon neutrality and peak carbon”strategy.Compared to liquefied hydrogen storage methods,solid-state hydrogen storage has advantages such as safe transportation and storage,and mild usage conditions.Among them,NaBH_(4) is currently the most widely and deeply studied solid-state hydrogen storage and release.Ultrafine Ru/rGO catalysts with an average particle size of 1.1 nm were synthesized via modified liquid-phase deposition and gas-phase reduction methods.The morphology and physical phase of the catalysts were characterized using transmission electron microscopy.The influence of various parameters,including catalyst amount,NaOH concentration,NaBH_(4) concentration and reaction temperature,on the hydrogen production activity of NaBH_(4) hydrolysis was systematically examined.Additionally,the cycling stability of the catalysts,along with the morphology and Ru size distribution of Ru/rGO after cycling,were thoroughly investigated.This work provided theoretical and practical references for the catalytic hydrolysis of NaBH_(4) to hydrogen using its ultrafine Ru catalyst.
作者
张磊
范薇
邹润
雷丽军
ZHANG Lei;FAN Wei;ZOU Run;LEI Lijun(College of Energy and Power Engineering,North University of China,Shanxi Taiyuan 030051,China)
出处
《广州化工》
CAS
2024年第19期41-44,84,共5页
GuangZhou Chemical Industry
基金
山西省基础研究计划资助项目(No:202103021223178)。
