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Chemical Engineering: Recent submissions
Now showing items 161-180 of 994
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High Areal-capacity and Durable Aqueous Rechargeable Zinc Li-ion Battery
(University of Waterloo, 2021-07-28)Rapid deployment of renewable energy sources around the world is crucial to lessen energy shortage and environmental pollution. As the contribution of renewable energy rises, energy storage with different battery systems ... -
Design of Improved Carbon Capture Solvents Using Molecular Simulation
(University of Waterloo, 2021-07-20)Study of the equilibrium compositions of complex chemically reacting systems by means of experimental measurements and thermodynamic modeling tools is of great interest and importance in chemistry, biology, and chemical ... -
Surface Segregation in Binary Polymer Blends due to Stiffness Disparity
(University of Waterloo, 2021-07-14)The main objective of this work is to study the surface segregation of a binary polymer blend, where the two components have the same molecular volume but are different in other properties such as end-to-end distance, ... -
Design, Synthesis, and Structure of Lithium Ion Conducting Materials for All-Solid-State Batteries
(University of Waterloo, 2021-06-24)Energy storage plays a pivotal role in enabling intermittent renewable energy sources, electrified transportation, and portable electronics. The rapidly growing energy demand in these sectors requires improvement to the ... -
The Role of pH, Ionic Strength and Monomer Concentration on the Terpolymerization of 2-Acrylamido-2-methylpropane Sulfonic Acid, Acrylamide and Acrylic Acid
(Elsevier, 2019-08-26)The current study examines the effects of important factors (namely, pH, ionic strength and monomer concentration) on the terpolymerization of 2-acrylamido-2-methylpropane sulfonic acid (AMPS), acrylamide (AAm) and acrylic ... -
Modified Cellulose Nanocrystals (CNC) for Functional Foods
(University of Waterloo, 2021-06-02)In recent years, food safety has attracted increasing attention, as consumers desire a healthier lifestyle and a prolonged lifespan. The interests in food to satisfy hunger have taken a shift towards providing more functional ... -
Amide-based Donor-acceptor Polymers for Sensor Applications
(University of Waterloo, 2021-06-02)Organic semiconductors, especially polymerized organic semiconductors, are suitable for manufacturing low-cost electronic products on flexible lightweight substrates through a high throughput roll-to-roll printing process. ... -
Lignin derived nano-biocarbon: its deposition on polyurethane foam for wastewater dye adsorption and as a filler for composite applications
(University of Waterloo, 2021-05-31)The use of natural biopolymers has seen a resurgence, due to their performance in natural organisms and biodegradable properties from an environmental perspective. As countries around the world continue to implement green ... -
Biophysical cues to enhance neuronal differentiation
(University of Waterloo, 2021-05-31)Biophysical cues are an important tool for neuronal tissue engineering and regenerative medicine. Cues such as topography and stiffness have been shown to enhance lineage and non-lineage based neuronal differentiation by ... -
Towards High Performance Lithium-ion Batteries using Crumpled Graphene-Protected Silicon Anodes
(University of Waterloo, 2021-05-28)Despite silicon being a promising candidate for next-generation lithium-ion battery anodes due to its high theoretical capacity of 3590 mAh/g (Li15Si4, at room temperature), self-pulverization and the formation of an ... -
Multiphysics Modelling of an Alkaline All-Iron, All-Soluble Aqueous Redox Flow Battery
(University of Waterloo, 2021-05-26)The development of redox flow battery (RFB) technologies has attracted considerable attention in recent years. Redox flow batteries are electrochemical energy storage devices that operate as flowing systems. Unlike what ... -
WO3/SnO2-Modified Graphite Felts as Novel Carbon-Based Positive Electrodes for Zinc-Cerium Redox-Flow Battery (RFB)
(University of Waterloo, 2021-05-21)Redox flow batteries (RFBs) are promising large-scale energy storage devices that are potentially cost-effective, easily scaled up in size, safe and versatile. RFBs use the chemical reactions of redox species which are ... -
Development of a ceria-based catalyst prepared by the microemulsion method for highly selective CO2 conversion via reverse water gas shift
(University of Waterloo, 2021-05-21)Reverse water gas shift (RWGS) is an emerging technology for CO2 utilization. The RWGS process catalytically converts CO2 to carbon monoxide (CO), producing syngas (a mixture of hydrogen (H2) and CO) which can be further ... -
Operational maps between molecular properties and environmental stress cracking resistance (ESCR)
(Wiley, 2019-01-20)Environmental stress cracking (ESC) is one of the main failure mechanisms involved in polymer fractures. This paper focusses on the environmental stress cracking resistance (ESCR) of polyethylene (PE) in which ESC occurs ... -
Encapsulation and controlled release of vitamin C in modified cellulose nanocrystal/chitosan nanocapsules
(Elsevier, 2021)Vitamin C (VC), widely used in food, pharmaceutical and cosmetic products, is susceptible to degradation, and new formulations are necessary to maintain its stability. To address this challenge, VC encapsulation was achieved ... -
Gelatin/PEDOT: PSS Modified Manganese Dioxide Cathode in Aqueous Rechargeable Zinc-ion Batteries
(University of Waterloo, 2021-05-11)The global energy crisis and greenhouse effect have become important problems in the 21st century, and researchers have paid attention to renewable energy, including hydro, wind, solar, and nuclear energy sources. However, ... -
Characterization of single- and multilayer cold-spray coating of Zn on AZ31B
(Elsevier, 2021-06-25)Zinc, a soft material with a low melting point and high corrosion resistance, was coated onto AZ31B Mg alloy using different cold spraying process parameters. The physical and mechanical properties of the resulting Zn/AZ31B ... -
Experimental and Modeling Study of Zinc-Cerium Redox Flow Batteries
(University of Waterloo, 2021-04-26)Redox flow batteries (RFBs) are one of the most promising energy storage technologies that are expected to have an increasing market size in the near future due to their scalability, safety, long-life and system flexibility. ... -
Cationic Cellulose Nanocrystals for the Flocculation of Mature Fine Oil Sands Tailings
(University of Waterloo, 2021-04-22)As the volume of oil sands tailings continues to increase each year with a concurrent need for better flocculants to replace the inorganic electrolytes and synthetic polymers, natural polymers are being considered as ... -
Micro-Additive Manufacturing of Metal-Oxide-Semiconductor Based Gas Sensors for Diabetes Detection via Breath Analysis
(University of Waterloo, 2021-03-15)Additive manufacturing (AM) is arousing more and more interest due to its flexibility to produce complex geometry, low fabrication cost and high material compatibility compared with conventional manufacturing. As a micro-scale ...