Tae‐Ung Wi
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View article: Selective and Stable Ethanol Synthesis via Electrochemical CO<sub>2</sub> Reduction in a Solid Electrolyte Reactor
Selective and Stable Ethanol Synthesis via Electrochemical CO<sub>2</sub> Reduction in a Solid Electrolyte Reactor Open
Electrochemical CO2 reduction to ethanol faces challenges such as low selectivity, a product mixture with liquid electrolyte, and poor catalyst/reactor stability. Here, we developed a grain-rich zinc-doped Cu2O precatalyst that presented a…
View article: Cobalt‐Doped Bismuth Nanosheet Catalyst for Enhanced Electrochemical CO<sub>2</sub> Reduction to Electrolyte‐Free Formic Acid
Cobalt‐Doped Bismuth Nanosheet Catalyst for Enhanced Electrochemical CO<sub>2</sub> Reduction to Electrolyte‐Free Formic Acid Open
Electrochemical carbon dioxide (CO 2 ) reduction reaction (CO 2 RR) to valuable liquid fuels, such as formic acid/formate (HCOOH/HCOO − ) is a promising strategy for carbon neutrality. Enhancing CO 2 RR activity while retaining high select…
View article: Cobalt‐Doped Bismuth Nanosheet Catalyst for Enhanced Electrochemical CO<sub>2</sub> Reduction to Electrolyte‐Free Formic Acid
Cobalt‐Doped Bismuth Nanosheet Catalyst for Enhanced Electrochemical CO<sub>2</sub> Reduction to Electrolyte‐Free Formic Acid Open
Electrochemical carbon dioxide (CO 2 ) reduction reaction (CO 2 RR) to valuable liquid fuels, such as formic acid/formate (HCOOH/HCOO − ) is a promising strategy for carbon neutrality. Enhancing CO 2 RR activity while retaining high select…
View article: Cathode Electrolyte Interphase Engineering for Prussian Blue Analogues in Lithium-Ion Batteries
Cathode Electrolyte Interphase Engineering for Prussian Blue Analogues in Lithium-Ion Batteries Open
The increasing use of low-cost lithium iron phosphate cathodes in low-end electric vehicles has sparked interest in Prussian blue analogues (PBAs) for lithium-ion batteries. A major challenge with iron hexacyanoferrate (FeHCFe), particular…
View article: Mitigating Electrode-Level Heterogeneity Using Phosphorus Nanolayers on Graphite for Fast-Charging Batteries
Mitigating Electrode-Level Heterogeneity Using Phosphorus Nanolayers on Graphite for Fast-Charging Batteries Open
Achieving fast-charging lithium-ion batteries (LIBs) with reliable cyclability remains a significant challenge. In this study, we investigate the use of phosphorus nanolayers as a strategy to enhance the lithiation kinetics and performance…
View article: Revealing the Dual-Layered Solid Electrolyte Interphase on Lithium Metal Anodes via Cryogenic Electron Microscopy
Revealing the Dual-Layered Solid Electrolyte Interphase on Lithium Metal Anodes via Cryogenic Electron Microscopy Open
It is crucial to comprehend the effect of the solid electrolyte interphase (SEI) on battery performance to develop stable Li metal batteries. Nonetheless, the exact nanostructure and working mechanisms of the SEI remain obscure. Here, we h…
View article: Design Principles for Fluorinated Interphase Evolution via Conversion-Type Alloying Processes for Anticorrosive Lithium Metal Anodes
Design Principles for Fluorinated Interphase Evolution via Conversion-Type Alloying Processes for Anticorrosive Lithium Metal Anodes Open
Over the past decade, lithium metal has been considered the most attractive anode material for high-energy-density batteries. However, its practical application has been hindered by its high reactivity with organic electrolytes and uncontr…
View article: Nanocomposite Engineering of a High‐Capacity Partially Ordered Cathode for Li‐Ion Batteries (Adv. Mater. 13/2023)
Nanocomposite Engineering of a High‐Capacity Partially Ordered Cathode for Li‐Ion Batteries (Adv. Mater. 13/2023) Open
Li-Ion Battery Cathodes In article 2208423, Hyun-Wook Lee, Jinhyuk Lee, Dong-Hwa Seo, and co-workers reveal the multiphase heterogeneous nature of ultrahigh-energy Mn-based partially disordered Li-ion cathodes through combined experimental…
View article: Nanocomposite Engineering of a High‐Capacity Partially Ordered Cathode for Li‐Ion Batteries
Nanocomposite Engineering of a High‐Capacity Partially Ordered Cathode for Li‐Ion Batteries Open
Understanding the local cation order in the crystal structure and its correlation with electrochemical performances has advanced the development of high‐energy Mn‐rich cathode materials for Li‐ion batteries, notably Li‐ and Mn‐rich layered…
View article: Near zero-strain silicon oxycarbide interphases for stable Li-ion batteries
Near zero-strain silicon oxycarbide interphases for stable Li-ion batteries Open
Silicon oxycarbide, as confirmed by in situ TEM, exhibits near-zero volume expansion strain during lithiation, resulting in reduced electrolyte uptake.
View article: Selectively Enhanced Electrocatalytic Oxygen Evolution within Nanoscopic Channels Fitting a Specific Reaction Intermediate for Seawater Splitting
Selectively Enhanced Electrocatalytic Oxygen Evolution within Nanoscopic Channels Fitting a Specific Reaction Intermediate for Seawater Splitting Open
Abundant availability of seawater grants economic and resource‐rich benefits to water electrolysis technology requiring high‐purity water if undesired reactions such as chlorine evolution reaction (CER) competitive to oxygen evolution reac…
View article: Unveiling the Role of PEO-Capped TiO<sub>2</sub> Nanofiller in Stabilizing the Anode Interface in Lithium Metal Batteries
Unveiling the Role of PEO-Capped TiO<sub>2</sub> Nanofiller in Stabilizing the Anode Interface in Lithium Metal Batteries Open
Lithium metal batteries (LMBs) will be a breakthrough in automotive applications, but they require the development of next-generation solid-state electrolytes (SSEs) to stabilize the anode interface. Polymer-in-ceramic PEO/TiO2 nanocomposi…