有机添加剂富勒烯配比对硒纳米粒子储氢性能的影响

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Ban D. Salih , Nora A. Salih , Maysoon A. Hamad , Mustafa A. Alheety , Ahmed R. Mahmood
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引用次数: 0

摘要

以富勒烯为合成物,以抗坏血酸为还原剂,通过原位超声辅助法制备了富勒烯修饰的硒(C60-Se)。采用XRD、SEM和TEM等技术对合成的纳米复合材料进行了表征。表征技术证明了C60和Se分别形成了不规则结构的球状结构。此外,XRD证实了Se和C60峰的存在,证实了所提出的结构。一项研究进行了改变富勒烯与硒的比例,以确定提供最高储氢量的最佳比例。研究证明,含硒量最高的比例,在55 bar和77 K的温度下,储氢能力最高,达到4.1 wt%。在平衡压力(55 bar)下,焓和熵分别为0.12873 KJ/mol H2和0.690246 J/mol H2。K,分别证明了物理吸附。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of fullerene ratio as an organic additive on the hydrogen storage of Se nanoparticles
Fullerene was used as a synthon to produce fullerene-decorated selenium (C60-Se) via an in-situ ultrasound-assisted method in the presence of ascorbic acid as a reducing agent. The resulting nanocomposite was characterized by XRD, SEM, and TEM techniques. The characterization techniques prove the formation of ball-like structures with irregular structures due to C60 and Se, respectively. Furthermore, XRD proves the presence of both Se and C60 peaks, proving the suggested structure. A study was conducted to change the ratio of fullerene to selenium in order to determine the best ratio that provides the highest hydrogen storage. The study proved that the ratio containing the highest value of selenium showed the highest ability to store hydrogen, which reached 4.1 wt% at 55 bar and a temperature of 77 K. At the equilibrium pressure (55 bar), enthalpy and entropy were calculated as 0.12873 KJ/mol H2 and 0.690246 J/mol H2. K., respectively, proving the physical adsorption.
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来源期刊
Carbon Trends
Carbon Trends Materials Science-Materials Science (miscellaneous)
CiteScore
4.60
自引率
0.00%
发文量
88
审稿时长
77 days
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