Soonyong So
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View article: Enhanced performance and durability of sealing gasket for polymer electrolyte membrane fuel cells and water electrolyzer by C–C coupling of functionalized 2D boron nitride nanoflakes
Enhanced performance and durability of sealing gasket for polymer electrolyte membrane fuel cells and water electrolyzer by C–C coupling of functionalized 2D boron nitride nanoflakes Open
View article: Magnetic field aligned carbon nanotube networks for structurally optimized cathodes catalyst layer of polymer electrolyte membrane fuel cells
Magnetic field aligned carbon nanotube networks for structurally optimized cathodes catalyst layer of polymer electrolyte membrane fuel cells Open
The oxygen diffusion resistance and inefficient water removal in conventional cathode catalyst layers (CLs) in polymer electrolyte membrane fuel cells (PEMFCs) restrict their performance at high current densities despite the presence of la…
View article: Engineered Microdefects in Nano‐Membranes for Enhanced Ion Selectivity and Membrane Durability in Vanadium Redox Flow Batteries
Engineered Microdefects in Nano‐Membranes for Enhanced Ion Selectivity and Membrane Durability in Vanadium Redox Flow Batteries Open
In vanadium redox flow batteries (VRFBs), ultrathin perfluorinated sulfonic acid (PFSA) membranes with a highly ordered morphology are proposed to enhance proton/vanadium ion selectivity, overcoming the limitations of conventional membrane…
View article: Well-dispersed radical scavengers for highly durable hydrocarbon-based proton exchange membranes in water electrolysis
Well-dispersed radical scavengers for highly durable hydrocarbon-based proton exchange membranes in water electrolysis Open
A highly durable hydrocarbon (HC)-based composite membrane is prepared by dispersing cerium oxide (CeO2) as a radical scavenger in a sulfonated poly(arylene ether sulfone) (SPAES) ionomer for application in proton exchange membrane water e…
View article: Effect of cathode ink formulation on the hydrogen crossover and cell performance of proton exchange membrane water electrolyzers
Effect of cathode ink formulation on the hydrogen crossover and cell performance of proton exchange membrane water electrolyzers Open
The permeation of H2 through the membranes of proton exchange membrane water electrolyzers (PEMWEs) is a critical safety concern because of the risk of explosion when H2 mixes with O2 at the anode and increases in concentration. In this st…
View article: Poly(p-phenylene)-based membranes with cerium for chemically durable polymer electrolyte fuel cell membranes
Poly(p-phenylene)-based membranes with cerium for chemically durable polymer electrolyte fuel cell membranes Open
A poly(p-phenylene)-based multiblock polymer is developed with an oligomeric chain extender and cerium (CE-sPP-PPES + Ce3+) to realize better performance and durability in proton exchange membrane fuel cells. The membrane perfor…
View article: Sub-20 nm ultrathin perfluorosulfonic acid-grafted graphene oxide composite membranes for vanadium redox flow batteries
Sub-20 nm ultrathin perfluorosulfonic acid-grafted graphene oxide composite membranes for vanadium redox flow batteries Open
Perfluorosulfonic acid (PFSA) membranes, such as Nafion, are widely used in vanadium redox flow batteries (VRFBs) because of their high proton conduction through the ion channels and excellent chemical stability. However, the high vanadium…
View article: Sulfonated poly(p-phenylene)-based ionomer/PTFE composite membrane with enhanced performance and durability for energy conversion devices
Sulfonated poly(p-phenylene)-based ionomer/PTFE composite membrane with enhanced performance and durability for energy conversion devices Open
Proton exchange membranes (PEMs) have to be fabricated as thin as possible to minimize the ohmic loss in the cell voltage of proton exchange membrane fuel cells (PEMFCs) and water electrolyzers (PEMWEs). Additionally, the dimensional and m…
View article: Multiblock copolymers with disulfonated bis(phenylsulfonylphenyl) sulfone group for polymer electrolyte membrane water electrolysis
Multiblock copolymers with disulfonated bis(phenylsulfonylphenyl) sulfone group for polymer electrolyte membrane water electrolysis Open
Hydrogen, a zero-emissions fuel, is increasingly being targeted as a source of renewable energy. However, hydrogen production by electrolysis is limited by the characteristics of the hydrogen-separating membrane. Here, a series of multiblo…
View article: Hydrocarbon-Based Composite Membrane Using LCP-Nonwoven Fabrics for Durable Proton Exchange Membrane Water Electrolysis
Hydrocarbon-Based Composite Membrane Using LCP-Nonwoven Fabrics for Durable Proton Exchange Membrane Water Electrolysis Open
A new hydrocarbon-based (HC) composite membrane was developed using liquid crystal polymer (LCP)-nonwoven fabrics for application in proton exchange membrane water electrolysis (PEMWE). A copolymer of sulfonated poly(arylene ether sulfone)…
View article: Multi-Block Copolymer Membranes Consisting of Sulfonated Poly(p-phenylene) and Naphthalene Containing Poly(arylene Ether Ketone) for Proton Exchange Membrane Water Electrolysis
Multi-Block Copolymer Membranes Consisting of Sulfonated Poly(p-phenylene) and Naphthalene Containing Poly(arylene Ether Ketone) for Proton Exchange Membrane Water Electrolysis Open
Glassy hydrocarbon-based membranes are being researched as a replacement for perfluorosulfonic acid (PFSA) membranes in proton exchange membrane water electrolysis (PEMWE). Here, naphthalene containing Poly(arylene Ether Ketone) was introd…
View article: Effect of dispersant on catalyst ink properties and catalyst layer structure for high performance polymer electrolyte membrane fuel cells
Effect of dispersant on catalyst ink properties and catalyst layer structure for high performance polymer electrolyte membrane fuel cells Open
Here, catalyst ink is prepared using a dispersant with the hydrophile-lipophile balance (HLB) value of 17. The effects of the ionomer-catalyst agglomerate size on the ink rheological properties, and subsequent catalyst layer (CL) microstru…
View article: Multilayered hydrocarbon ionomer/PTFE composite electrolytes with enhanced performance for energy conversion devices
Multilayered hydrocarbon ionomer/PTFE composite electrolytes with enhanced performance for energy conversion devices Open
A new multilayered composite membrane was prepared by impregnating a sulfonated poly(arylene ether sulfone) (SPAES) ionomer into a porous polytetrafluoroethylene (PTFE) substrate for application in proton exchange membrane fuel cells (PEMF…
View article: Constrained hydrocarbon-based ionomers in porous Poly(tetrafluoroethylene) supports for enhanced durability of polymer electrolyte membrane fuel cells and water electrolyzers
Constrained hydrocarbon-based ionomers in porous Poly(tetrafluoroethylene) supports for enhanced durability of polymer electrolyte membrane fuel cells and water electrolyzers Open
The dimensional stability of proton exchange membranes in the moisture involved energy conversion devices polymer electrolyte membranes fuel cells (PEMFCs) and water electrolyzers (PEMWEs) is a critical property to prolong the cell life sp…
View article: Aluminum Diethylphosphinate-Incorporated Flame-Retardant Polyacrylonitrile Separators for Safety of Lithium-Ion Batteries
Aluminum Diethylphosphinate-Incorporated Flame-Retardant Polyacrylonitrile Separators for Safety of Lithium-Ion Batteries Open
Herein, we developed polyacrylonitrile (PAN)-based nanoporous composite membranes incorporating aluminum diethylphosphinate (ADEP) for use as a heat-resistant and flame-retardant separator in high-performance and safe lithium-ion batteries…
View article: Highly selective porous separator with thin skin layer for alkaline water electrolysis
Highly selective porous separator with thin skin layer for alkaline water electrolysis Open
© 2022Advanced porous separators with thin selective skin layers to reduce the hydrogen permeation are developed for applications in alkaline water electrolysis. A thin skin layer based on crosslinked polyvinyl alcohol (cPVA) is fabricated…
View article: Controlling hydrophilic channel alignment of perfluorinated sulfonic acid membranes via biaxial drawing for high performance and durable polymer electrolyte membrane water electrolysis
Controlling hydrophilic channel alignment of perfluorinated sulfonic acid membranes via biaxial drawing for high performance and durable polymer electrolyte membrane water electrolysis Open
This study focuses on improving performance and durability of perfluorinated sulfonic acid (PFSA) membranes for polymer electrolyte membrane water electrolysis by controlling the membrane microstructure. To replace the highly gas permeable…
View article: Cross-Linked Composite Gel Polymer Electrolyte Based on an H-Shaped Poly(ethylene oxide)–Poly(propylene oxide) Tetrablock Copolymer with SiO<sub>2</sub> Nanoparticles for Solid-State Supercapacitor Applications
Cross-Linked Composite Gel Polymer Electrolyte Based on an H-Shaped Poly(ethylene oxide)–Poly(propylene oxide) Tetrablock Copolymer with SiO<sub>2</sub> Nanoparticles for Solid-State Supercapacitor Applications Open
Achieving high ionic conductivity, wide voltage window, and good mechanical strength in a single material remains a key challenge for polymer-based electrolytes for use in solid-state supercapacitors (SCs). Herein, we report cross-linked c…
View article: Ion exchange capacity controlled biphenol-based sulfonated poly(arylene ether sulfone) for polymer electrolyte membrane water electrolyzers: Comparison of random and multi-block copolymers
Ion exchange capacity controlled biphenol-based sulfonated poly(arylene ether sulfone) for polymer electrolyte membrane water electrolyzers: Comparison of random and multi-block copolymers Open
Conventionally, highly proton conductive perfluorosulfonic acid (PFSA) ionomers are used for an electrolyte membrane in a polymer electrolyte membrane water electrolyzer. As alternatives to the expensive and highly hydrogen permeable PFSA …
View article: Planar orientation of hydrophilic channels by biaxial deformation of perfluorinated sulfonic acid membranes for vanadium redox flow batteries
Planar orientation of hydrophilic channels by biaxial deformation of perfluorinated sulfonic acid membranes for vanadium redox flow batteries Open
Commercially available perfluorosulfonic acid (PFSA) membranes are used as cation exchange membranes for vanadium redox flow batteries (VRFBs) due to their outstanding chemical stability and proton conductivity. However, high vanadium cros…
View article: Aqueous eutectic lithium-ion electrolytes for wide-temperature operation
Aqueous eutectic lithium-ion electrolytes for wide-temperature operation Open
View article: Reinforced anion exchange membrane based on thermal cross-linking method with outstanding cell performance for reverse electrodialysis
Reinforced anion exchange membrane based on thermal cross-linking method with outstanding cell performance for reverse electrodialysis Open
PErC(5)QPS-QPPO exhibited 20.7% higher MPD than commercial AEM (AMV).
View article: Functional polymers for growth and stabilization of CsPbBr<sub>3</sub> perovskite nanoparticles
Functional polymers for growth and stabilization of CsPbBr<sub>3</sub> perovskite nanoparticles Open
Functional polymer ligands are used to prepare perovskite nanoparticles that disperse in polymer matrices.
View article: Polybenzimidazole/Nafion hybrid membrane with improved chemical stability for vanadium redox flow battery application
Polybenzimidazole/Nafion hybrid membrane with improved chemical stability for vanadium redox flow battery application Open
Novel polybenzimidazole (PBI)/Nafion hybrid membranes for the VRFB are made by spray coating a Nafion layer to protect PBI from chemical degradation.
View article: Nanoemulsion-like Polymersomes for Nanoreactors
Nanoemulsion-like Polymersomes for Nanoreactors Open
University of Minnesota Ph.D. dissertation. July 2015. Major: Chemical Engineering. Advisor: Timothy Lodge. 1 computer file (PDF); viii, 175 pages.