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Tough nature-inspired helicoidal composites with printing-induced voids
Title
Tough nature-inspired helicoidal composites with printing-induced voids
Author
Xu, Jun, Yin, Sha, Chen, Haoyu, Yang, Ruiheng
Date Created
2020
Subjects--Topical
Three-dimensional modeling, Three-dimensional printing
Description
Exoskeletons of Odontodactylus japonicas, the smasher-type mantis shrimp, feature a raptorial appendage comprising a Bouligand architecture of chitin nanofibrils with newly observed voids or defects between the polysaccharide alpha-chitin and prot...
Exploring high-energy and mechanically robust anode materials based on doped graphene for lithium-ion batteries: a first-principles study
Title
Exploring high-energy and mechanically robust anode materials based on doped graphene for lithium-ion batteries: a first-principles study
Author
Xu, Jun, Chang, Cheng, Yin, Sha
Date Created
2020
Subjects--Topical
Lithium ion batteries, Mechanical engineering
Description
In this study, the adsorption of Li atoms on various types of doped graphene with substituents, including boron, nitrogen, sulfur and silicon atoms, has been theoretically investigated by first-principles calculations, based on the density functio...
Analytical modeling framework for performance degradation of PEM fuel cells during startup-shutdown cycles
Title
Analytical modeling framework for performance degradation of PEM fuel cells during startup-shutdown cycles
Author
Xu, Jun, Yin, Sha, Li, Yunqi, Chen, Xiran
Date Created
2020
Subjects--Topical
Mechanical engineering, Fuel cells
Description
Startup-shutdown cycling is one of the main factors that contribute to fuel cell deterioration related to high cathode potential. In this study, a coupled model with the carbon corrosion model and agglomerate model of the cathode catalyst layer is...