A5085365345- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Fuel Cells and Related Materials
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Reliability and Maintenance Optimization
- Advanced Battery Materials and Technologies
- Microfluidic and Bio-sensing Technologies
- Acoustic Wave Phenomena Research
- Fault Detection and Control Systems
- Electrospun Nanofibers in Biomedical Applications
- Electric and Hybrid Vehicle Technologies
- Electronic and Structural Properties of Oxides
- Vehicle Dynamics and Control Systems
- MXene and MAX Phase Materials
- CO2 Reduction Techniques and Catalysts
- Aerosol Filtration and Electrostatic Precipitation
- Control Systems and Identification
- Electric Vehicles and Infrastructure
- Electrochemical Analysis and Applications
- Advanced Photocatalysis Techniques
- Lattice Boltzmann Simulation Studies
- 2D Materials and Applications
Iowa State University
2017-2022
A versatile and straightforward room-temperature strategy is demonstrated to synthesize boundary defect-rich ultrathin transition metal hydroxide nanosheet networks by in situ etching of a cobalt metal–organic framework (Co-MOF, ZIF-L-Co). The resultant Co(OH)2 (D-U-Co(OH)2) nanoarray one the most active monometal-based oxygen evolution catalysts date. Its activity 3–4 times higher than that commercial RuO2 superior reported exfoliated bimetallic catalysts. Co-MOF can also be grown on...
NiFe-layered double hydroxide (LDH) is thought of as a promising bifunctional water-splitting catalyst, owing to its excellent performances for alkaline oxygen evolution reactions (OERs). However, it shows extremely poor activity toward hydrogen (HERs) due the weak adsorption. We demonstrated that integration Rh species and NiFe-LDH can dramatically improve HER kinetics without sacrificing OER performance. The were initially integrated into oxidized dopants metallic clusters (< 1 nm). In M...
Fe–Ni hydroxide nanosheets were converted to phosphide nanoparticle-stack array by low-temperature phosphorization promote surface area and further improve oxygen evolution reaction activities.
Efficiency of hydrogen evolution via water electrolysis is mainly impeded by the kinetically sluggish oxygen reaction (OER). Thus, it great significance to develop highly active and stable OER catalyst for alkaline or substitute more demanding acidic with a facile electron-donating such that no longer bottleneck half-reaction either electrolysis. Herein, hierarchical Fe–Ni phosphide shelled ultrathin carbon networks on Ni foam (FeNiP@C) reported shows exceptional activity enhanced chemical...
To enhance the energy density of solid-state supercapacitors, a novel cell, made redox-active poly(vinyl alcohol) (PVA) hydrogel electrolytes and functionalized carbon nanotube-coated cellulose paper electrodes, was investigated in this work. Briefly, acidic PVA-[BMIM]Cl-lactic acid-LiBr neutral PVA-[BMIM]Cl-sodium acetate-LiBr polymer are used as catholyte anolyte, respectively. The condition contributes to suppression undesired irreversible reaction Br- extension oxygen evolution potential...
With the recent threat of climate change and global warming, ensuring access to safe drinking water is a great challenge in many areas worldwide. Designing functional materials for capturing from natural resources like fog mist has become one key research maximize production clean water. From this aspect, nature source designing bioinspired as some plant leaves animal exoskeletons can harness then store it save themselves arid, xeric conditions. Inspired by Stenocara beetle, we have designed...
Pt as a chemical inert metal has been widely applied the counter electrode in various electrochemical measurements. However, it can also be dissolved and redeposit to working under certain circumstances. Herein we demonstrated cyclic voltammetry (CV) cycling method synthesize catalyst comprising inserted nanoparticles into MoS₂ nanoflake stack structures on stainless steel mesh (SSM). The binder-free composite structure exhibits significantly enhanced hydrogen evolution reaction (HER)...
Porous carbon is becoming an important and promising high-surface-area scaffold material for various energy-based applications including catalysis. Here we demonstrate the growth of urchin-like platinum nanoparticles (PtNPs) on monoliths derived from basswood that work as catalysts micro underwater vehicle (MUV) propulsion via H2O2 decomposition. The were constructed natural was carbonized in argon (Ar) subjected to a subsequent CO2 activation process rendered into hardened 3D porous...
State of health (SOH) estimation is a critical yet challenging task due to the complex degradation process lithium-ion (Li-ion) battery. This paper proposes combine physics-based modeling Li-ion battery and sequential design simulation experiments build an accurate SOH estimator in computationally efficient manner. A novel backward optimization adopted multivariate Gaussian model that quantifies three modes cell: loss lithium inventory losses active materials positive negative electrodes....
Abstract State of health (SOH) estimation lithium-ion batteries has typically been focused on estimating present cell capacity relative to initial capacity. While many successes have achieved in this area, it is generally more advantageous not only estimate capacity, but also the underlying degradation modes which cause fade because these give further insight into maximizing usage. There some modes, however, methods either require long-term data, are demonstrated solely artificially...