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Browsing Theses by Title
Now showing items 8695-8714 of 13960
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Nanostructured Carbons and Additives for Improvement of the Lithium-Sulfur Battery Positive Electrode
(University of Waterloo, 2013-04-19)Large specific gravimetric/volumetric energy density, environmental benignity and safe low working voltage. All of these points have been used to describe the lithium sulfur (Li-S) battery in the past, but often times it ... -
Nanostructured catalyst design to improve ultrafine Pt nanoparticle utilization and stability for PEMFCs
(University of Waterloo, 2020-05-15)Polymer electrolyte membrane fuel cells (PEMFCs) is an electrochemical device which efficiently converts chemical energy stored in hydrogen and oxygen into electricity and water. Widely regarded as promising alternative ... -
Nanostructured complex hydride systems for solid state hydrogen storage
(University of Waterloo, 2012-01-19)The present work reports a study of the effects of the formation of a nanostructure induced by high-energy ball milling, compositions, and various catalytic additives on the hydrogen storage properties of LiNH2-LiH and ... -
Nanostructured composites as electrochemical catalysts for Li-air batteries
(University of Waterloo, 2014-09-22)Advanced energy conversion and storage systems are drawing tremendous research attention as the energy demand for portable electronics and electric vehicle (EV) applications continues to increase. Although lithium (Li) ion ... -
Nanostructured Light Metal Hydrides Based on Li, Al, Na, B and N for Solid State Hydrogen Storage
(University of Waterloo, 2013-08-01)The present work reports a study of the effects of the compositions, and various catalytic additives and nanostructuring by high-energy ball milling, on the hydrogen storage properties of LiBH4, NaBH4, LiNH2 and LiAlH4 ... -
Nanostructured Materials and Electrodes Engineering for Efficient CO2 Conversion
(University of Waterloo, 2020-09-11)The conversion of CO2 to valuable chemicals via electrochemical CO2 reduction reactions (CO2RR) offers a clean approach for recycling CO2 with sustainable and environmental benefits. Among a variety of derived chemicals, ... -
Nanostructured Materials for Energy Storage and Conversion
(University of Waterloo, 2009-11-19)Efficient, cost effective, and environmentally friendly energy storage and conversion systems are highly desirable to meet ever increasing demands. Nanostructured materials have attracted great interest due to their many ... -
Nanostructured Materials for Pseudocapacitors and Single-Electron Devices
(University of Waterloo, 2014-05-21)As a result of increasing demand of power in the modern society, energy storage/consumption is playing a more important role on future economics. Therefore energy storage systems which are more environmentally friendly, ... -
Nanostructured Materials for Tactile and Catalytic Applications
(University of Waterloo, 2018-04-26)In response to the needs of the modern information-rich society, there is an increasing demand for multifunctional materials with novel properties to advance the development of the new-generation electronics. To synthesize ... -
Nanostructured Materials Supported Oxygen Reduction Catalysts in Polymer Electrolyte Membrane Fuel Cells
(University of Waterloo, 2013-04-24)Polymer electrolyte membrane (PEM) fuel cells have been viewed as promising power source candidates for transport, stationary, and portable applications due to their high efficiency and low emissions. The platinum is the ... -
Nanostructured Non-carbonaceous Materials for Improvement of Sulfur Cathode in Lithium-Sulfur Battery
(University of Waterloo, 2014-04-28)Lithium-sulfur battery based on sulfur cathode has the advantages of high specific capacity, high energy density, environmental benignity and natural abundance of sulfur. These advantages over conventional lithium-ion ... -
Nanostructured non-precious metal catalyst and its behavior in the catalyst layer in PEM fuel cells
(University of Waterloo, 2017-02-28)Polymer electrolyte membrane (PEM) fuel cells have been viewed as promising power source candidates for transport, stationary, and portable applications due to their high efficiency and low emissions. The platinum is the ... -
Nanostructured Non-Precious Metal Catalysts for Polymer Electrolyte Fuel Cell
(University of Waterloo, 2010-12-20)Polymer electrolyte membrane fuel cells (PEFCs) have long been thought of as a promising clean alternative energy electrochemical device. They are lightweight, highly efficient, modular and scalable devices. A fuel such ... -
Nanostructured non-precious oxygen reduction reaction catalysts for electrochemical energy applications
(University of Waterloo, 2015-01-07)Fuel cell and state of the art battery technologies share a common electrochemical reaction in their operation. The oxygen reduction reaction (ORR) is a key phenomenon for the efficient operation for both electrochemical ... -
Nanostructured oxygen reduction catalyst designs to reduce the platinum dependency of polymer electrolyte fuel cells
(University of Waterloo, 2015-07-24)Polymer electrolyte fuel cells (PEFCs) are electrochemical devices that efficiently convert hydrogen and oxygen into electricity and water. Their clean point of operation emissions and fast refueling times have resulted ... -
Nanostructured Spinel Oxides as Bi-functional Electrocatalysts for Rechargeable Metal-Air Batteries
(University of Waterloo, 2017-08-24)Due to continuously increasing energy demands, particularly with the emergence of electric vehicles (EV), smart energy grids, and portable electronics, advanced energy conversion and storage systems such as fuel-cells and ... -
Nanostructured TM-Boron Based Hydrides for Solid State Hydrogen Storage (TM-transition metal)
(University of Waterloo, 2016-11-30)Several complex borohydride systems were investigated in this work as potential candidates for on-demand hydrogen generation and/or storage. All selected systems were synthesized by ball milling (BM) in expectation of ... -
Nanostructures based on cyclic C6
(University of Waterloo, 2013-05-24)The properties of a new family of carbon structures based on stacked cyclic C6 rings and intercalated cyclic C6 structures: (C6)n and (C6)nMen-1 have been studied theoretically using ab initio DFT (Density Functional ... -
Nanotechnology Applied in the Design of the Next Generation of Canadian Concrete Pavement Surfaces
(University of Waterloo, 2014-11-20)High friction response in pavement improves road safety, while reduced noise production from the tire-pavement interface benefits public health and the economy of a country. According to Transport Canada, highway crashes ... -
Nanowire Alignment: Techniques, Quantification, and Applications in Large-Area Devices
(University of Waterloo, 2018-09-20)Nanowire alignment is essential for their integration into large-area devices, as well as to obtain certain functionality such as the ability to polarize light and increase surface-enhanced Raman scattering. Various nanowire ...