Komova Oksana V, Simagina Valentina I, Pochtar Alena A, Bulavchenko Olga A, Ishchenko Arcady V, Odegova Galina V, Gorlova Anna M, Ozerova Anna M, Lipatnikova Inna L, Tayban Elena S, Mukha Svetlana A, Netskina Olga V
Boreskov Institute of Catalysis SB RAS, Lavrentieva Av. 5, 630090 Novosibirsk, Russia.
Materials (Basel). 2021 Sep 19;14(18):5422. doi: 10.3390/ma14185422.
The paper presents a comparative study of the activity of magnetite (FeO) and copper and cobalt ferrites with the structure of a cubic spinel synthesized by combustion of glycine-nitrate precursors in the reactions of ammonia borane (NHBH) hydrolysis and hydrothermolysis. It was shown that the use of copper ferrite in the studied reactions of NHBH dehydrogenation has the advantages of a high catalytic activity and the absence of an induction period in the H generation curve due to the activating action of copper on the reduction of iron. Two methods have been proposed to improve catalytic activity of FeO-based systems: (1) replacement of a portion of Fe cations in the spinel by active cations including Cu and (2) preparation of highly dispersed multiphase oxide systems, involving oxide of copper.
本文介绍了对磁铁矿（FeO）以及具有立方尖晶石结构的铜铁氧体和钴铁氧体活性的比较研究，这些铁氧体是通过甘氨酸 - 硝酸盐前驱体在氨硼烷（NH₃BH₃）水解和水热解反应中燃烧合成的。结果表明，在研究的NH₃BH₃脱氢反应中使用铜铁氧体具有高催化活性的优点，并且由于铜对铁还原的活化作用，H生成曲线中不存在诱导期。提出了两种提高基于FeO的体系催化活性的方法：（1）用包括Cu在内的活性阳离子替代尖晶石中一部分Fe阳离子；（2）制备包含铜氧化物的高度分散的多相氧化物体系。
