Recently we have focused on the architecture engineering of oxide-based nanomaterials for their applications to lithium ion battery, fuel cell electrocatalsis, and photocatalysis. We reported the first demonstration of galvanic replacement reactions in metal oxide nanocrystals, and synthesized hollow nanocrystals of various multimetallic oxides including Mn3O4/γ-Fe2O3.1 We report a simple synthetic method of carbon-based hybrid cellular nanosheets loaded with SnO2 nanoparticles.2 These oxide-based nanomaterials exhibited very high specific capacity and good cyclability for lithium ion battery anodes. We designed hollow anatase TiO2 nanostructures composed of interconnected ~5 nm-sized nanocrystals, which individually reach the theoretical lithium storage limit and maintain a stable capacity during prolonged cycling.3 We present a synthesis of highly durable and active electrocatalysts based on ordered fct-PtFe nanoparticles and FeP nanoparticles coated with N-doped carbon shell.4,5 We designed and synthesized highly active and stable Fe-N-C catalyst for oxygen reduction reaction.6 We report on the designed synthesis of highly active TiO2 photocatalysts incorporated with single copper atoms (Cu/TiO2) that exhibit reversible and cooperative photoactivation process, and enhanced photocatalytic hydrogen generation activity.

Designing oxide-based nanomaterials for energy applications

2019 Fall National Meeting

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