钨
形态学(生物学)
氢
材料科学
化学工程
合理设计
冶金
化学
纳米技术
地质学
有机化学
工程类
古生物学
作者
Dandan Liu,Ziheng Geng,Aiyan Han,Ping Yu,Kaikai Zhang,Huan Liu,Yunqi Liu
标识
DOI:10.1016/j.ijhydene.2024.02.108
摘要
In this paper, WO3 with specific exposed facets was prepared through hydrothermal method, then Pt nanoparticles were decorated on the surface of WO3 to enhance the H2 dissociation ability, and the obtained Pt/WO3 materials could realize the visualized H2 detection by the rapid color change of powder. In specific, the high exposure of oxygen ion at c-axis and the shortened diameter of (001) crystal facets is helpful for achieving fast coloring-blenching process. As a result, WO3 nanowires could exhibit a reflectance change of 86.2%, rapid coloring time (64 s) and recovery rate compared with nanorods and microspheres. Moreover, the detailed influencing mechanism of morphology on diffusion and injection of H and O atoms during gasochromism was revealed. This study could contribute to deepen the understanding of morphology-dependent hydrogen gasochromic performance from microscopic view.
科研通智能强力驱动
Strongly Powered by AbleSci AI