Publications by authors named "Myeong-Geun Kim"
Alkaline polymer electrolytes (APEs) are essential materials for alkaline energy conversion devices such as anion exchange membrane fuel cells (AEMFCs) and water electrolyzers (AEMWEs). Here, we report a series of branched poly(aryl-co-aryl piperidinium) with different branching agents (triptycene: highly-rigid, three-dimensional structure; triphenylbenzene: planar, two-dimensional structure) for high-performance APEs. Among them, triptycene branched APEs showed excellent hydroxide conductivity (193.
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- The study addresses the design challenges of anion exchange polyelectrolytes (AEPs) for efficient and durable use in anion exchange membrane water electrolyzers (AEMWEs).
- By incorporating a rigid twisted spirobisindane monomer into a poly(aryl-co-aryl piperidinium) backbone, the researchers created materials with continuous ionic channels that enhance stability and performance.
- The resulting AEPs exhibit exceptional properties, including high hydroxide conductivity, impressive current densities, and applicability in fuel cells, paving the way for improved energy conversion devices.
The development of synthetic methods for monodisperse nanomaterial is of great importance in science and technology related to nanomaterials. The strong demands to prepare exceptionally monodisperse nanocrystals have made digestive-ripening one of the most sought-after size-focusing processes. Although digestive-ripening processes have been demonstrated to produce various metals and semiconductors, their applicability to oxides has rarely been studied despite various unique properties and applications of oxide nanomaterials.
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