Abstract
Nanoporous metal materials synthesized by dealloying play a vital role in catalysis, energy sources, sensors and biological monitoring fields. The alloy composition can greatly affect the structure and porosity of dealloyed products. But in many cases, the composition of precursor alloy is optimized by a trial-and-error approach. To determine the optimal composition of Al-Si precursor alloys, we investigated their melt fragility. It is found that Al-Si eutectic alloy possesses not merely the smallest melt fragility, but also the strongest tendency to form honeycomb-like nanoporous Si with large specific surface area. A prediction of the optimal composition of Al-Si precursor alloys is realized by melt fragility. When used as lithium-ion batteries anodes, the honeycomb-like nanoporous Si12 anode delivers a better cycling performance with a higher capacity retention than that of Si7 and Si20 anodes. This strategy allows for prediction of the optimal precursor alloy composition in dealloying.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
