Grigorova Eli, Markov Pavel, Tsyntsarski Boyko, Tzvetkov Peter, Stoycheva Ivanka
Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bld. 11, 1113 Sofia, Bulgaria.
Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bld. 9, 1113 Sofia, Bulgaria.
Materials (Basel). 2023 Oct 23;16(20):6823. doi: 10.3390/ma16206823.
The hydrogen sorption of materials based on 80 wt.% MgH with the addition of 15 wt.% Ni or V and 5 wt.% activated carbons synthesized from polyolefin wax, a waste product from polyethylene production (POW), walnut shells (CAN), and peach stones (CPS) prepared by milling under an inert Ar atmosphere for a period of 1 h, is investigated. All precursors are submitted to pyrolysis followed by steam activation in order to obtain the activated carbons. The hydrogen sorption evaluations are carried out for absorption at 473 and 573 K with pressure of 1 MPa and for desorption at 623 and 573 K with pressure of 0.15 MPa. The composition of the samples after milling and hydrogenation is monitored by X-ray diffraction analyses. The 80 wt.% MgH-15 wt. %Ni-5 wt.% POW or CAN after absorption-desorption cycling and in a hydrogenated state at 573 K and 1 MPa are analyzed by TEM.
研究了基于80 wt.%氢化镁，并添加15 wt.%镍或钒以及5 wt.%由聚烯烃蜡（聚乙烯生产的废品）、核桃壳（CAN）和桃核（CPS）合成的活性炭的材料在惰性氩气气氛下研磨1小时制备而成的材料的氢吸附情况。所有前驱体均经过热解，然后进行蒸汽活化以获得活性炭。氢吸附评估在473 K和573 K、压力为1 MPa下进行吸收测试，在623 K和573 K、压力为0.15 MPa下进行解吸测试。通过X射线衍射分析监测研磨和氢化后样品的组成。对在573 K和1 MPa下经过吸-脱附循环且处于氢化状态的8则wt.%氢化镁-15 wt.%镍-5 wt.%聚烯烃蜡或核桃壳活性炭进行透射电子显微镜分析。
