首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Structural characterization and electrochemical hydrogen sorption performances of the polycrystalline Ba2Co9O14 nanostructures
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Structural characterization and electrochemical hydrogen sorption performances of the polycrystalline Ba2Co9O14 nanostructures

机译:多晶Ba2CO9O14纳米结构的结构表征和电化学氢吸收性能

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With the advent of hydrogen as a vehicle fuel and with technological advances in the 1980s, various materials have been examined in order to store hydrogen. Traditional hydrogen storage requires a huge amount of initial pressure for the initial condensation of hydrogen. Nanomaterials rely not only on their intrinsic and unique features but also on their ability to act as effective immobilization matrices. Here we demonstrate a novel class of hydrogen storage nanosystems (polycrystalline Ba2Co9O14) with unique structure and high power electrochemical discharge efficiencies. The Ba2Co9O14 nanostructures are synthesized purely via a well-known Pechini method in the presence of both ethylene glycol (EG) and poly(ethylene glycol)-600 (PEG-600) as a cross linking agent and space filling template, respectively, after thermal treatments. Our nanosystems consist of the particles ranging from 10 to 30 nm and average crystallite size of similar to 27 nm. The electrochemical properties achieve an interesting discharge efficiency of around 850 mAh.g(-1) in 15th cycles. (C) 2018 Elsevier B.V. All rights reserved.
机译:随着氢气作为车辆燃料的出现,在20世纪80年代的技术进步,已经检查了各种材料以储存氢气。传统的储氢需要大量的初始压力来初始冷凝氢气。纳米材料不仅依赖于其内在和独特的特征,也依靠他们充当有效的固定矩阵的能力。在这里,我们展示了一种具有独特结构和高功率电化学放电效率的新型储氢纳米系统(多晶Ba2CO9O14)。在热量之后,在乙二醇(例如)和聚(乙二醇)-600(PEG-600)的存在下,通过众所周知的Pechini方法纯粹通过公知的Pechini方法合成,作为交叉连接剂和空间填充模板。治疗。我们的纳米系统由10至30nm的颗粒组成,平均微晶尺寸与27nm相似。电化学性质在第15次循环中实现了约850mAh.g(-1)的有趣放电效率。 (c)2018年elestvier b.v.保留所有权利。

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