A5055349808- Carbon Dioxide Capture Technologies
- Membrane-based Ion Separation Techniques
- Chemical Looping and Thermochemical Processes
- Membrane Separation and Gas Transport
- Phase Equilibria and Thermodynamics
- Industrial Gas Emission Control
- CO2 Reduction Techniques and Catalysts
- Carbon dioxide utilization in catalysis
- Advanced battery technologies research
- Coal and Its By-products
- Catalysts for Methane Reforming
- Catalytic Processes in Materials Science
- Thermochemical Biomass Conversion Processes
- Advanced Battery Materials and Technologies
- Membrane Separation Technologies
- Thermal and Kinetic Analysis
- Corrosion Behavior and Inhibition
- Ionic liquids properties and applications
- Supercapacitor Materials and Fabrication
- Fuel Cells and Related Materials
- Iron and Steelmaking Processes
- Ammonia Synthesis and Nitrogen Reduction
- Atmospheric and Environmental Gas Dynamics
- Process Optimization and Integration
- Toxic Organic Pollutants Impact
University of Kentucky
2016-2025
Pingdingshan University
2023
CAO Group (United States)
2006
Markey Cancer Center
2005
Western Kentucky University
2000-2004
Southeast University
2001
To enhance performance stability, carbon electrodes with opposite net surface charges were employed to develop the inverted capacitive deionization system.
Long-term performance of capacitive deionization (CDI) and membrane-assisted (MCDI) single cells equipped with the same pristine carbon xerogel (CX) electrodes configured as anode cathode was investigated. Unlike CDI, which subject to degradation in a short period time, MCDI showed preservation during 50 h operation due its ability mitigate charge leakage from parasitic electrochemical reactions that result oxidation. Differential capacitance measurements used CDI revealed shifting potential...
Microporous SpectraCarb carbon cloth was treated using nitric acid to enhance negative surface charges of COO(-) in a neutral solution. This acid-treated further modified by ethylenediamine attach -NH2 functional groups, resulting positive -NH3(+) via pronation Through multiple characterizations, comparison pristine carbon, amine-treated displays decreased potential zero charge but an increased point charge, which is opposed the effect obtained for carbon. An inverted capacitive deionization...
In order to examine the reliability of carbon xerogel (CX) materials for capacitive deionization (CDI), long-term operation a CDI cell with CX electrodes was performed in dilute NaCl solution. During at 1.2/0 V, performance gradually degraded, and growing inversion peak formed beginning each adsorption step. When polarity electrode reversed, use −1.2/0 V significantly boosted performance. However, this enhancement not sustained continued cycling. study, we also reported four-electrode cell,...
Chemical looping combustion (CLC) is an advanced technology with inherent CO2 capture in which a solid oxygen carrier circulates between air reactor and fuel reactor. For coal-fueled CLC, the existence of impurities requires not only to have good reactivity but also be contaminant-resistant, low-cost, readily available. Therefore, development cost-effective well-performing carriers very meaningful for CLC process. Natural red mud, byproduct from aluminum industry, was found function well as...
Since a capacitive deionization (CDI) cell is type of electrochemical device, its performance will be limited by the electrode with weaker ion-adsorption. A cyclic voltmmogram for freshly prepared carbon xerogel (CX) showed Na+ adsorption at cathodic branch not as favorable Cl− anodic in ∼4 mM (∼233 ppm) NaCl solution. To balance this performance, CX was specifically modified coating SiO2 particles and formation surface –COOH groups from oxidation. It observed that these modifications cannot...
Conductive, monolithic carbon xerogel electrodes have been synthesized using a flexible support and resorcinol-formaldehyde (RF) polycondensation reaction with RF precursor weight percentages of 37, 40, 45, 50 to tailor pore size distributions for electrosorption. Increased produced volumes greater than 0.4 cm3/g. External examined by SEM was shown decrease increasing percent from >300 nm <50 37 wt% RF, respectively. Carbon were used in capacitive deionization cell demonstrating...
Oxygen carrier (OC) development is an important topic in chemical looping combustion (CLC). Bimetal oxide OCs usually impart better performance than monometal OCs; one example of which the introduction CeO2 as a partially reducible material capable generating oxygen vacancies that lead to faster transfer inside OC particle. In this study, was used additive Fe2O3-based and its effect on physical properties, such morphology, surface area crushing strength, analyzed detail. The reactivity...
Abstract We employ slow cyclic voltammetry to study the quasi‐steady‐state capacitive deionization (CDI) of aerated 10 mM NaCl from V cell =−0.2 2 V. The method allows for deconvolution and faradaic processes, which are significant even at low voltage, in conjunction with pH, conductivity, dissolved oxygen (DO), electrode potential measurements. pH three locations effluent DO data identify asymmetric electrosorption configured pristine activated carbon electrodes, where charge is...