基于农用氢能的Ag∕Co-B∕CTAB催化氨硼烷产氢性能研究

Hydrogen Production of Ammonia- borane Catalyzed by Ag/Co- B/CTAB Based on Agricultural Hydrogen Energy

氢能作为推动全球能源转型的一种清洁能源,逐渐成为世界能源领域的研究热点,研究发现氢气在农业能源应用、植物信号感知等领域具有重要意义。制备了一种高效催化剂(Ag/Co-B/CTAB)用以催化氨硼烷(AB)水解制氢,通过FTIR、XRD、XPS等技术表征Ag/Co-B/CTAB催化剂的物理化学性质,分析不同温度、催化剂含量、AB浓度对AB水解制氢的影响。结果发现,Ag/Co-B/CTAB在30℃下的产氢速率为16.185 L/(min·g催化剂),而Co-B/CTAB催化剂的产氢速率为10.76 L/(min·g催化剂),这极大地提高了AB水解反应的产氢速率;并且Ag/Co-B/CTAB催化AB的水解活化能也较低(12.581 kJ/mol)。该研究对后续发展氢气在农业中的大规模有效应用具有重要意义。

As a kind of clean energy to promote global energy transition, hydrogen energy has gradually become a research hotspot in the world′s energy field.It is found that hydrogen has great significance in agricultural energy application and plant signal sensing.A high efficiency catalyst(Ag/Co-B/CTAB)was prepared to catalyze hydrolysis of ammonia-borane(AB)for hydrogen production.The physical and chemical properties of Ag/Co-B/CTAB catalyst were characterized by FTIR,XRD,XPS and other technologies, and effects of different temperature, catalyst content and AB concentration on the hydrolysis of AB for hydrogen production were analyzed.Results showed that hydrogen production rate of Ag/Co-B/CTAB catalyst was 16.185 L/(min·g catalyst)at 30 ℃,while hydrogen production rate of Co-B/CTAB catalyst was 10.76 L/(min·g catalyst),which greatly increased hydrogen production rate of AB hydrolysis reaction.In addition, activation energy for hydrolysis of AB catalyzed by Ag/Co-B/CTAB was also low(12.581 kJ/mol).This research is of great significance for subsequent development of large-scale and effective applications of hydrogen in agriculture.