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溶剂组成对用于电化学储氢应用的一维(NH)VO·8HO电活性材料的影响。

Effect of solvent composition on a one-dimensional (NH)VO·8HO electroactive material for electrochemical hydrogen storage application.

作者信息

Gomrokchi Poria, Ghiyasiyan-Arani Maryam, Dawi Elmuez A, Alsultany Forat H, Issa Salman Khalaf, Shabani-Nooshabadi Mehdi, Salavati-Niasari Masoud

机构信息

Institute of Nano Science and Nano Technology, University of Kashan Kashan 87317-51167 Islamic Republic of Iran

College of Humanities and Sciences, Department of Mathematics and Sciences, Ajman University P. O. Box 346 Ajman United Arab Emirates.

出版信息

RSC Adv. 2025 Jun 30;15(27):22128-22137. doi: 10.1039/d5ra03066h. eCollection 2025 Jun 23.

DOI:10.1039/d5ra03066h
PMID:40589465
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12207965/
Abstract

Electrode materials with tailored shapes for one-dimensional (ID) nanorods were manufactured using a solvothermal approach. Different conditions led to the formation of samples with diverse morphologies and compositions. Structural characteristics were studied using XRD, FT-IR, EDX, FE-SEM, TEM and BET analysis (NH)VO and (NH)VO·8HO structures were obtained under these conditions. The charge-discharge test was conducted to compare the activity of electrode materials with different phase purities. After 15 cycles at a current density of 1 mA, the fabricated (NH)VO·8HO material displayed a capacity of 956 mA h g, and a maximum capacity of 5268 mA h g was obtained at the 7th cycle. However, the (NH)VO electrode material showed 324 mA h g capacity. Vanadium-based materials have poor conductivity. Therefore, designing 1D structures improves the hydrogen storage efficiency of the electrodes. The optimized sample with a nanorod structure and (NH)VO·8HO phase purity shows a surface area of 23.571 m g.

摘要

采用溶剂热法制备了具有一维（ID）纳米棒定制形状的电极材料。不同条件导致形成具有不同形态和组成的样品。使用XRD、FT-IR、EDX、FE-SEM、TEM和BET分析研究结构特征（NH）VO和（NH）VO·8HO结构在这些条件下获得。进行充放电测试以比较不同相纯度的电极材料的活性。在1 mA电流密度下循环15次后，制备的（NH）VO·8HO材料显示出956 mA h g的容量，在第7次循环时获得了5268 mA h g的最大容量。然而，（NH）VO电极材料显示出324 mA h g的容量。钒基材料导电性差。因此，设计一维结构可提高电极的储氢效率。具有纳米棒结构和（NH）VO·8HO相纯度的优化样品显示出23.571 m g的表面积。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/0cb50114095b/d5ra03066h-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/ea7da31813e4/d5ra03066h-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/2ccc7a68b303/d5ra03066h-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/2826025b4347/d5ra03066h-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/83c856a624ad/d5ra03066h-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/d1332f4be09e/d5ra03066h-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/8bc974d5122f/d5ra03066h-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/eed83c29ad4b/d5ra03066h-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/2648ac1cbbfa/d5ra03066h-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/0cb50114095b/d5ra03066h-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/ea7da31813e4/d5ra03066h-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/2ccc7a68b303/d5ra03066h-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/2826025b4347/d5ra03066h-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/83c856a624ad/d5ra03066h-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/d1332f4be09e/d5ra03066h-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/8bc974d5122f/d5ra03066h-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/eed83c29ad4b/d5ra03066h-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/2648ac1cbbfa/d5ra03066h-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e44/12207965/0cb50114095b/d5ra03066h-f8.jpg

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