@article{bf92ce63dd7748efbec26ef609ec7cb8,
title = "Popcorn-like aluminum-based powders for instant low-temperature water vapor hydrogen generation",
abstract = "Aluminum is a typical metal with a quick and self-healing passivation course. The dense oxidation film effectively prevents aluminum from being continuously oxidized by oxygen or water vapor. In this study, we report a kind of aluminum alloy powders that shows popcorn-like shape transformation in the reaction with low-temperature water vapor, which demonstrates that circumventing the passivation of aluminum alloy through the self-sustaining shape changes in hydrolysis reaction can become a reality. In-situ experiments disclosed that the hydrogen-assisted cracking and the interfacial corrosion play important roles in facilitating aluminum reactivity and cause a popcorn-like shape transformation. Moreover, the amorphous hydrated layer may enhance water transportation through the oxidation layer by the {\textquoteleft}spongy{\textquoteright} behavior. This study reveals a special corrosion mechanism of aluminum and provides a promising perspective of using aluminum in the energy field.",
keywords = "Aluminum activation, Bismuth, Dispersed structure, Hydrogen-assisted cracking, Liquid-liquid phase separation",
author = "Xinren Chen and Cuiping Wang and Yuheng Liu and Yansong Shen and Qijun Zheng and Shuiyuan Yang and Huanming Lu and Hongwei Zou and Kairui Lin and Hongxin Liu and Huajun Qiu and Junwei Wu and Qian Zhang and Xingjun Liu",
note = "Funding Information: The work was financially supported by National Natural Science Foundation of China (No. 51771158 ) and Development and Reform Commission of Shenzhen Municipality. We wish to thank Ming Li (Ningbo Institute of Materials Technology and Engineering, PR China) and Yongcun Ma (Ningbo Institute of Materials Technology and Engineering, PR China) for helping with the in situ observation experiments with the environmental scanning electron microscope (ESEM); Jinming Wang (Xiamen University, PR China) for helping with the TEM measurements; Renzhong Tai, Lijuan Zhang, Haigang Liu, Yu Wang (Shanghai Institute of Applied Physics, Chinese Academy of Sciences) for helping with the experiments in Shanghai Synchrotron Radiation Facility. Funding Information: The work was financially supported by National Natural Science Foundation of China (No. 51771158) and Development and Reform Commission of Shenzhen Municipality. We wish to thank Ming Li (Ningbo Institute of Materials Technology and Engineering, PR China) and Yongcun Ma (Ningbo Institute of Materials Technology and Engineering, PR China) for helping with the in situ observation experiments with the environmental scanning electron microscope (ESEM); Jinming Wang (Xiamen University, PR China) for helping with the TEM measurements; Renzhong Tai, Lijuan Zhang, Haigang Liu, Yu Wang (Shanghai Institute of Applied Physics, Chinese Academy of Sciences) for helping with the experiments in Shanghai Synchrotron Radiation Facility. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",
year = "2021",
month = mar,
doi = "10.1016/j.mtener.2020.100602",
language = "English",
volume = "19",
journal = "Materials Today Energy",
issn = "2468-6069",
publisher = "Elsevier Limited",
}
