Jeemin Hwang
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View article: Practical operating flexibility of a bifunctional freestanding membrane for efficient anion exchange membrane water electrolysis across all current ranges
Practical operating flexibility of a bifunctional freestanding membrane for efficient anion exchange membrane water electrolysis across all current ranges Open
This study explores a symmetric configuration approach in anion exchange membrane (AEM) water electrolysis, focusing on overcoming adaptability challenges in dynamic conditions. Here, a rapid and mild synthesis technique for fabricating fi…
View article: Longevous Cycling of Rechargeable Zn‐Air Battery Enabled by “Raisin‐Bread” Cobalt Oxynitride/Porous Carbon Hybrid Electrocatalysts
Longevous Cycling of Rechargeable Zn‐Air Battery Enabled by “Raisin‐Bread” Cobalt Oxynitride/Porous Carbon Hybrid Electrocatalysts Open
Developing commercially viable electrocatalyst lies at the research hotspot of rechargeable Zn‐air batteries, but it is still challenging to meet the requirements of energy efficiency and durability in realistic applications. Strategic mat…
View article: How to Change the Reaction Chemistry on Nonprecious Metal Oxide Nanostructure Materials for Electrocatalytic Oxidation of Biomass‐Derived Glycerol to Renewable Chemicals (Adv. Mater. 4/2023)
How to Change the Reaction Chemistry on Nonprecious Metal Oxide Nanostructure Materials for Electrocatalytic Oxidation of Biomass‐Derived Glycerol to Renewable Chemicals (Adv. Mater. 4/2023) Open
Electrocatalytic Oxidation In article number 2203285, Sung Mook Choi, Min Ho Seo, Won Bae Kim, Hyung Ju Kim, and co-workers report the use of both experimental and theoretical approaches to understand the reaction performance and chemistry…
View article: Active Motif Change of Ni‐Fe Spinel Oxide by Ir Doping for Highly Durable and Facile Oxygen Evolution Reaction (Adv. Funct. Mater. 1/2023)
Active Motif Change of Ni‐Fe Spinel Oxide by Ir Doping for Highly Durable and Facile Oxygen Evolution Reaction (Adv. Funct. Mater. 1/2023) Open
Oxygen Evolution Reaction In article number 2209543, Lee, Cho, and co-workers demonstrate that Ir doping (5 mol%) on inverse-spinel NiFe2O4 (Ir-NFO) provides extraordinary activity and robustness for oxygen evolution reaction in alkaline e…
View article: A reinforced composite membrane of two-layered asymmetric structure with Nafion ionomer and polyethylene substrate for improving proton exchange membrane fuel cell performance
A reinforced composite membrane of two-layered asymmetric structure with Nafion ionomer and polyethylene substrate for improving proton exchange membrane fuel cell performance Open
© 2022 The Author(s)The reinforced composite membrane with a two-layered asymmetric structure was fabricated by impregnating the Nafion on a porous polyethylene (PE) substrate to reduce the cost of the membrane used in proton exchange memb…
View article: Fuel cell performance improvement via the steric effect of a hydrocarbon-based binder for cathode in proton exchange membrane fuel cells
Fuel cell performance improvement via the steric effect of a hydrocarbon-based binder for cathode in proton exchange membrane fuel cells Open
In this study, a sulfonated poly(ether sulfone) having cardo-type fluorenyl groups (FL-SPES) was investigated as a cathodic binder to improve fuel cell performance via increased the oxygen diffusion in the cathode. The maximum power densit…
View article: Copper phosphosulfides as a highly active and stable photocatalyst for hydrogen evolution reaction
Copper phosphosulfides as a highly active and stable photocatalyst for hydrogen evolution reaction Open
View article: Ultrastable molybdenum disulfide-based electrocatalyst for hydrogen evolution in acidic media
Ultrastable molybdenum disulfide-based electrocatalyst for hydrogen evolution in acidic media Open
View article: First Principles Computational Study of Surface Reactions Toward Design Concepts of High Functional Electrocatalysts for Oxygen Reduction Reaction in a Fuel Cell System
First Principles Computational Study of Surface Reactions Toward Design Concepts of High Functional Electrocatalysts for Oxygen Reduction Reaction in a Fuel Cell System Open
Design of novel materials in renewable energy systems plays a key role in powering transportation vehicles and portable electronics. This review introduces the research work of first principles-based computational design for the materials …
View article: A New Family of Perovskite Catalysts for Oxygenevolution Reaction in Alkaline Media: BaNiO3 and BaNi0.83O
A New Family of Perovskite Catalysts for Oxygenevolution Reaction in Alkaline Media: BaNiO3 and BaNi0.83O Open
Establishment of sustainable energy society has been strong driving force to develop cost-effective and highly active catalysts for energy conversion and storage devices such as metal-air batteries and electrochemical water splitting syste…