A5047740803- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Conducting polymers and applications
- Advancements in Battery Materials
- Hybrid Renewable Energy Systems
- Electrocatalysts for Energy Conversion
- Advanced Battery Technologies Research
- Electrochemical sensors and biosensors
- Advancements in Solid Oxide Fuel Cells
- Refrigeration and Air Conditioning Technologies
- Heat Transfer and Optimization
- Gas Sensing Nanomaterials and Sensors
- CO2 Reduction Techniques and Catalysts
- Spacecraft and Cryogenic Technologies
- Magnetic and transport properties of perovskites and related materials
- Analytical Chemistry and Sensors
- MXene and MAX Phase Materials
- Catalytic Processes in Materials Science
- Electronic and Structural Properties of Oxides
- Graphene research and applications
Chungbuk National University
2022-2024
North Park University
2022-2024
We propose efficient multiple machine learning (ML) models using specifically polynomial and logistic regression ML methods to predict the optimal design of proton exchange membrane (PEM) electrolyzer cells. The eleven different parameters cell components for four input such as hydrogen production rate, cathode area, anode type (e.g., single or bipolar). fit well we trained on 148 samples validated model performance a test set 16 samples. average accuracy classification mean absolute error...
Mixed transition-metal oxides (MTMOs) are attracting tremendous attention as a battery-type electrode due to their high electrical conductivity and structural stability. However, utilizing these electrodes in practical applications is hindered by capacity degradation, especially during the long-term cycle. These limitations could be overcome constructing introducing carbonaceous material into MTMO matrix. Accordingly, this work, facile hydrothermal method employed develop nitrogen-doped...
Recent advances in using biological scaffolds for nanoparticle synthesis have proven to be useful preparing various nanostructures with uniform shape and size. Proteins are significant generating partly because of the presence many functional groups recognize different chemistries. In this endeavor, cocosin protein, an 11S allergen, is prepared from coconut fruit employed as a potential scaffold synthesizing Mn3O4 materials. The interaction between protein manganese ions studied detail...
Proton exchange membrane electrolyzer cells (PEMECs) are considered to be an environmentally friendly system for producing high-purity hydrogen through water electrolysis. However, they require optimal configurations and operating conditions energy cost-effective practical applications. In this study, four different types of flow paths inside a PEMEC were proposed, namely, parallel, single-channel, four-channel, parallel grid, the effect path shape on evolution reaction was examined....
Rationally fabricating the hybrid nanostructures with a distinctive surface and internal properties is substantial due to their multifunctional features in energy storage catalysis applications. Generally, battery-like supercapacitor materials experience low density inferior cyclic stability issues intercalation/deintercalation process. To address this problem, dichalcogenides (WSe2 MoSe2) were hybridized material (NiCo2O4), which effectively changed diffused-controlled surface-controlled...
A global energy shift to a carbon-neutral society requires clean energy. Hydrogen can accelerate the process of expanding and renewable sources. However, conventional hydrogen compression storage technology still suffers from inefficiencies, high costs, safety concerns. An electrochemical compressor (EHC) is device similar in structure water electrolyzer. Its most significant advantage that it accomplish separation at same time. With no mechanical motion low consumption, EHC key future...
Abstract Developing nanostructured multi‐transition metal‐based spinel architectures represents a strategic approach for boosting the energy density of supercapacitors while preserving high power density. Here, influence incorporating Zn and Cu into Co 3 O 4 systems on supercapacitor performance is investigated by synthesizing single (ZnO, CuO, ), binary (ZnCo 2 , CuCo ternary (Zn 0.5 ) oxides nickel foam substrates. Theoretical experimental analyses highlight that flower‐like structures...
An electrochemical hydrogen compressor (EHC) can compress via reactions. Unlike polymer electrolyte membrane fuel cells, EHC exhibits the unique characteristic of not generating water from cathode catalyst, leading to continuous dehydration (PEM) due electro-osmotic drag (EOD) during operation. Drying PEM causes an increase in ohmic resistance, so must be sufficiently hydrated and management is required. Based on recorded temperature, humidity, current density operation, a MATLAB program was...
Due to the age of fossil fuels brought about unprecedented environmental challenges due accumulation carbon dioxide and other greenhouse gases in atmosphere. As a result, we need transition towards cleaner more sustainable energy sources. At forefront endeavors attain this overarching objective lies hydrogen, offering feasible alternative devoid deleterious pollutants. Its production via water electrolysis presents viable pathway green solutions. This research introduce novel methodology for...