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Jesse S. Ko

Researcher at Johns Hopkins University Applied Physics Laboratory

Publications -  47
Citations -  3083

Jesse S. Ko is an academic researcher from Johns Hopkins University Applied Physics Laboratory. The author has contributed to research in topics: Lithium & Chemistry. The author has an hindex of 14, co-authored 38 publications receiving 2140 citations. Previous affiliations of Jesse S. Ko include United States Naval Research Laboratory & California NanoSystems Institute.

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Oxygen vacancies enhance pseudocapacitive charge storage properties of MoO3-x.

TL;DR: This study underscores the potential importance of incorporating oxygen vacancies into transition metal oxides as a strategy for increasing the charge storage kinetics of redox-active materials.
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Mesoporous MoS2 as a Transition Metal Dichalcogenide Exhibiting Pseudocapacitive Li and Na‐Ion Charge Storage

TL;DR: In this paper, an ordered mesoporous thin films of MoS2 can be utilized as a pseudocapacitive energy storage material with a specific capacity of 173 mAh g−1 for Li-ions and 118 m Ah g− 1 for Na-ions at 1 mV s−1.
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Mesoporous LixMn2O4 Thin Film Cathodes for Lithium-Ion Pseudocapacitors.

TL;DR: A nanostructured version of the well-known cathode material, LiMn2O4, reduced by about half, but both charge and discharge kinetics as well as cycling stability were improved significantly andKinetic analysis of the redox reactions was used to verify the pseudocapacitive mechanisms of charge storage and establish the feasibility of using nanoporous LixMn 2O4 as a cathode in lithium-ion devices based on pseudocapsitive charge storage.
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Translating Materials-Level Performance into Device-Relevant Metrics for Zinc-Based Batteries

TL;DR: In this paper, the authors present guidelines by which to evaluate and report data derived from new electrode formulations and cell components such that the results will directly inform which breakthroughs are technologically relevant to scale up.
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General Method for the Synthesis of Hierarchical Nanocrystal-Based Mesoporous Materials

TL;DR: It is shown that this method can be applied to nanocrystals with a broad range of compositions and sizes, and that assembly of nanocry crystals can be carried out using a broad family of polymer templates, and the resultant materials show disordered but homogeneous mesoporosity that can be tuned through the choice of template.