机构地区:[1]安徽工业大学化学与化工学院,工程研究院,安徽马鞍山243000 [2]浙江大学化学工程与生物工程学院,浙江杭州310027 [3]南开大学先进能源材料化学教育部重点实验室,天津300071 [4]安庆师范大学光电磁功能材料安徽省重点实验室,光电磁功能配合物和纳米配合物安徽省重点实验室,安徽安庆246011 [5]九江学院江西省生态化工工程技术研究中心,江西九江332005
出 处:《稀有金属》2023年第8期1122-1131,共10页Chinese Journal of Rare Metals
基 金:国家自然科学基金青年项目(22108238);国家自然科学基金联合项目(U22A20408);安徽省自然科学基金青年项目(1908085QB68);安徽省科技重大专项(201903a05020055);中国博士后面上项目(2019M662060);中国博士后派出项目(PC2022046);中国博士后特别资助站中项目(2020T130580);安徽省光电磁性功能材料重点实验室开放基金项目(ZD2021007);江西省生态化工工程研究中心开放基金项目(STKF2109);2022年国家级大学生创新创业训练计划项目(202210360037)资助。
摘 要:氢气是清洁的二次能源,具有来源丰富、热值高、使用过程中不产生污染物等优点。氢经济主要包括氢气的制备、储存、运输和应用。目前,氢气的低成本制备和高效、安全的储存技术是限制氢能产业发展的主要瓶颈。氨硼烷是一种非常有前途的储氢材料,其氢含量高达19.6%(质量分数),尤其是在金属催化剂作用下可实现氨硼烷温和条件水解释氢反应,从而引起了广泛的关注。综述了氨硼烷常见的脱氢方式,分析了氨硼烷水解脱氢的机制,介绍了氨硼烷水解制氢催化剂的最新研究进展,研究和讨论了Pt基纳米催化剂,包括Pt单原子、Pt单金属、Pt双金属和Pt三金属纳米催化剂在氨硼烷水解脱氢中的应用,最后总结和指出了提高Pt基纳米催化剂催化活性和稳定性的思路,为氨硼烷高效水解产氢催化剂的设计提供有益借鉴,并为后续氨硼烷在氢能领域的应用提供参考和指明方向。Hydrogen is a clean secondary energy source with the advantages of abundant sources,high calorific value and no pollutants produced during use.Currently,the low-cost preparation of hydrogen and efficient and safe storage technology are key bottlenecks in the development of the hydrogen energy industry.Therefore,the development of new chemical materials has attracted widespread attention.Compounds such as ammonia borane,ammonia borane and hydrazine hydrate with high H2 content are considered to be ideal hydrogen storage materials.Among these hydrogen storage materials,ammonia borane(NH3BH3,AB)is regarded as one of the most promising hydrogen storage materials due to its high hydrogen content(19.6%).In its dehydrogenation pathway,NH_(3)BH_(3) can be hydrolysed under mild conditions to release large amounts of hydrogen.However,aqueous solutions of ammonia borane are very stable under ambient conditions,so catalysts are needed to accelerate the hydrolysis reaction.To date,various catalyst systems have been tested for the hydrolysis of NH_(3)BH_(3),including the noble metals Pt,Ru,Rh and Pd and the non-precious metals Co,Ni,Cu and Fe,with the noble metal catalysts having higher catalytic activity than the non-precious metal catalysts.In particular,the noble metal Pt exhibits its unique chemical activity and stability,thus Pt-based nanocatalysts are of great importance for hydrogen production from NH_(3)BH_(3) hydrolysis.This paper reviewed the molecular structure of ammonia borane and its common dehydrogenation methods,analysed the mechanism of hydrolytic dehydrogenation of ammonia borane,focused on the research progress of Pt-based nanocatalysts,including Pt monoatomic,Pt monometallic,Pt bimetallic and Pt trimetallic nanocatalysts in the hydrolytic dehydrogenation of ammonia borane,and finally summarized and pointed out the ideas.The following conclusions were drawn from the summary:(1)Optimizing the catalytic performance of Pt-based noble metals was the key to promote the application of Pt-based noble metals.The pre
分 类 号:TK91[动力工程及工程热物理] TQ426[化学工程]
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