Electrospun metal hydride-polymer nanocomposite fibers for enhanced hydrogen storage and kinetics

IF 2.8 4区 化学 Q3 POLYMER SCIENCE
Qamar S. Mohammed, Balakrishnan Subeshan, Ahmed O. Ijaola, Eylem Asmatulu
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Abstract

One of the key elements in the advancement of hydrogen (H2) and fuel cell technologies is to store H2 effectively for use in various industries, such as transportation, defense, portable electronics, and energy. Because of its highest energy density, availability, and environmental and health benefits, H2 stands as a promising future energy carrier. Currently, enterprises are searching for a solution for energy distribution management and H2 gas storage. Thus, there is a need to develop an innovative solution to H2 storage that might be considered for later use in aviation applications. This study aims to synthesize an electrospun nanocomposite fiber (NCF) for an H2 storage application and to understand the absorption kinetics of the resultant highly porous NCF mats. This study incorporates functional NCFs with H2-sensitive inclusions to increase the storage capacity and absorption/desorption kinetics of H2 gas at lower temperatures and pressures. Here, the electrospinning technique is utilized to produce NCFs with various nanoscale metal hydrides (MHs) and conductive particles, which support enhancing H2 storage capacity and kinetics. These NCFs enable controlled H2 storage and improve thermal properties. Selected polymeric materials for H2 storage that have been investigated are polyacrylonitrile (PAN), polymethyl methacrylate (PMMA), and sulfonated polyether ether ketone (SPEEK) in combination with MHs, and multi-walled carbon nanotubes (MWCNTs). On testing, it was observed that H2 capacity with SPEEK, which includes 4 wt% MWCNTs and 4 wt% MH MmNi4.5Fe0.5 shows significant H2 uptake compared to a PAN/PMMA polymer.

Graphical abstract

电纺丝金属氢化物-聚合物纳米复合纤维增强储氢和动力学
氢(H2)和燃料电池技术进步的关键因素之一是有效地储存氢气,以用于各种行业,如交通运输、国防、便携式电子和能源。由于其最高的能量密度、可用性以及对环境和健康的益处,H2是一种很有前途的未来能源载体。目前,企业正在寻找能源分配管理和氢气储存的解决方案。因此,有必要开发一种创新的氢气存储解决方案,以供以后在航空应用中使用。本研究旨在合成一种用于储氢的电纺纳米复合纤维(NCF),并了解所得到的高多孔NCF垫的吸收动力学。该研究将功能nfc与H2敏感包体结合,以提高H2气体在低温和低压下的储存容量和吸收/解吸动力学。本文利用静电纺丝技术制备了含有各种纳米级金属氢化物(mh)和导电颗粒的nfc,支持增强H2存储容量和动力学。这些nfc能够控制H2存储并改善热性能。研究了用于储氢的聚合物材料,包括聚丙烯腈(PAN)、聚甲基丙烯酸甲酯(PMMA)、磺化聚醚酮(SPEEK)和多壁碳纳米管(MWCNTs)。在测试中,与PAN/PMMA聚合物相比,含有4wt % MWCNTs和4wt % MH MmNi4.5Fe0.5的SPEEK的H2容量显示出显著的H2吸收率。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Polymer Research
Journal of Polymer Research 化学-高分子科学
CiteScore
4.70
自引率
7.10%
发文量
472
审稿时长
3.6 months
期刊介绍: Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.
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