A5004126338- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Extraction and Separation Processes
- Recycling and Waste Management Techniques
- Conducting polymers and applications
- Dental Erosion and Treatment
- Advanced Battery Materials and Technologies
- Algal biology and biofuel production
- Advanced Sensor and Energy Harvesting Materials
- Dental materials and restorations
- Fuel Cells and Related Materials
- Energy and Environment Impacts
- Enzyme Catalysis and Immobilization
- Molecular Junctions and Nanostructures
- Electric Vehicles and Infrastructure
- Electrocatalysts for Energy Conversion
- Granular flow and fluidized beds
- Chemical Looping and Thermochemical Processes
- Organic Electronics and Photovoltaics
- Membrane-based Ion Separation Techniques
- Microbial Metabolic Engineering and Bioproduction
- Heat and Mass Transfer in Porous Media
- Laser Applications in Dentistry and Medicine
- Gas Sensing Nanomaterials and Sensors
- Acoustic Wave Resonator Technologies
Colorado School of Mines
2015-2024
Advanced Energy Systems (United States)
2022-2024
Korea Advanced Institute of Science and Technology
2020
National Renewable Energy Laboratory
2017
Biomass and bioproduct composition critical improvements are a priority for the nascent algae-based bioeconomy.
Species transport in thin-film Nafion heavily influences proton-exchange membrane (PEMFC) performance, particularly low-platinum-loaded cells. Literature suggests that phase-segregated nanostructures hydrated thin films can reduce species mobility and increase losses cathode catalyst layers. However, these structures have primarily been observed at silicon-Nafion interfaces rather than more relevant material (e.g., Pt carbon black) interfaces. In this work, we use neutron reflectometry X-ray...
High energy density lithium-O2 batteries have potential to increase electric vehicle driving range, but commercialization is prevented by technical challenges. Researchers proposed electrolytes, catalysts, and binders improve the battery capacity reduce fade. Novel design, however, not always consistent with reduction in greenhouse gas (GHG) emissions. Optimizing design using solely electrochemical metrics ignores variations environmental impacts of different materials. The lack uniform...
Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is less selective for holes in an inverted-architecture organic photovoltaic (OPV) than it a conventional-architecture OPV device due to differences between the interfacial-PSS concentration at top and bottom of PEDOT:PSS layer. In this work, thin layers polysulfonic acids are inserted poly(3-hexylthiophene) (P3HT):indene-C60 bisadduct (ICBA) bulk heterojunction (BHJ) active layer create higher acid interface and,...
Abstract Despite their high theoretical capacity, actual performance in lithium-oxygen (Li-O 2 ) batteries is limited by sluggish transport and kinetic processes. Cathodes must provide ample surface area to host solid reduction products, but also support species access these surfaces. Numerous modeling studies therefore attempt optimize cathode design identifying microstructures balance two needs. However, model validation has historically relied on literature-sourced properties, which vary...
Abstract Greenhouse gas emission reduction is often cited as a reason for high energy density, next-generation battery development. As lithium-O 2 research has progressed, researchers have examined the potential of many novel materials in drive to reduce parasitic reactions and increase capacity. While field made great strides towards producing more reliable batteries, there been little verification that batteries will net environmental impacts. This paper examines how material selection...
Low-income communities and of color, on average, experience longer recovery durations following a disaster-induced power outage. Furthermore, residents in these often report higher stress during, worse outcomes following, Social vulnerability indices have been used to quantify inequalities by measuring where are most at risk during long-duration However, the causes disparities not adequately studied. In this paper, it is hypothesized that historical practice classifying neighborhood...
P(VDF-TrFE-CFE) (Poly (vinylidene fluoride-trifluoroethylene-chlorofluoroethylene)), which exhibits a high electrostriction of about 7%, can transmit tactile output as vibration or displacement. In this study, we investigated the applicability to wearable piezoelectric actuators. The layers were deposited through spin-coating, and interspaced with patterned Ag electrodes fabricate two-layer 3.5 mm × device. This layered structure was designed fabricated increase displacement actuator at low...
Here we quantitatively evaluate the early stages of mechanical and morphological changes polished human enamel surfaces induced by soft drinks using atomic force microscopy. With an increase immersion time in drinks, found a significant surface roughness (Ra) considerable decrease elastic modulus (E) enamel. The prismatic structure was clearly observed after one-hour Coca-Cola, which shows its strong erosion effect. A high results chance cavities due to easier bacterial adhesion on rougher...
Due to its chemical stability in acidic environments and high ionic conductivity, Nafion has proven be an essential material proton exchange membrane fuel cell (PEMFC) designs. functions as both a – separating the two electrodes conductive binder each catalyst layer (CL). Nano-thin films of ionomer allow protons reach carbon-supported Pt catalysts. In addition protons, oxygen water also move through nano-thin from reactive sites. These physical transport processes directly impact PEMFC...
Lithium-oxygen (Li-O 2 ) batteries are widely studied for their potential to improve the energy density electric vehicles; however, high reactivity of cell components limits extended cyclability batteries. Some this degradation can be attributed formation O2-, which reacts with electrolyte and Li+ form irreversible biproducts. These complexes have been detected on cathode Li-O cells by Raman spectroscopy FTIR after cycling in TEGDME, a popular solvent Lithium-Air [1, 2]. has quantify...