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Showing 1 to 17 of 17 for “"CO poisoning"”.
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Electrochemical Oxidation of Carbon Monoxide in Reformate Hydrogen for PEM Fuel Cells
<p>Carbon monoxide (CO) poisoning of platinum anode significantly decreases the performance of proton exchange membrane fuel cells (PEMFC). Various techniques studied to remove CO from source or mitigate CO poisoning have met with limited success due to fuel loss or increases infrastructure …
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Electrochemical Characterization of Platinum based anode catalysts for Polymer Exchange Membrane Fuel Cell
… of platinum based binary anode catalysts for CO poisoning from 10ppm up to1000ppm and to identify the best anode catalysts for PEMFCs that tolerates the CO fed with reformed hydrogen.
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Electrocatalysis in Alkaline Media: Mechanistic Studies of Fuel Cell Reactions on Well-Defined Model Catalysts
… to promote both methanol dehydrogenation and CO oxidation on adjacent Pt sites. Ru enhances methanol dehydrogenation through two distinct ligand effects: it increases the intrinsic dehydrogenation activity of adjacent Pt sites, and it causes CO to diffuse away from these active sites, …
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Synthetic Studies Of Biologically Active Molecules: Irl 2500, Bruceantin, And Biliatresone
Part 1: Carbon monoxide (CO) is a poisonous gas that binds to hemoglobin, preventing oxygen transport to the tissues. CO poisoning causes ~50,000 emergency room visits per year. Treatments for CO poisoning are extremely limited. IRL 2500 is a small molecule allosteric effector of hemoglobin that …
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Synthesis of Platinum and Platinum-Copper Branched Nanoparticles for Electrooxidation of Methanol
… maintaining the performance of the catalysts becomes a subject for intensive research in materials chemistry. For heterogeneous catalysis, the catalytic reactivity and selectivity are strongly correlated with different crystallographic facets exposed on the surface. The facets with high-index …
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Morphology Controlled Synthesis of Copper Based Multimetallic Nanostructures and Their Electrocatalytic Properties for Methanol Oxidation Reaction
… research focuses on the development of shape-controlled synthesis of Cu NM, Cu-based bimetallic and trimetallic nanostructures, and their electrocatalytic properties for methanol oxidation reaction (MOR). Copper nanomaterials (Cu NM) with specific surface facets can tailor their catalytic …
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Electrochemical impedance spectroscopy options for proton exchange membrane fuel cell diagnostics
Electrochemical impedance spectroscopy (EIS) has been exploited as a rich source of Proton Exchange Membrane Fuel Cell (PEMFC) diagnostic information for many years. Several investigators have characterized different failure modes for PEMFCs using EIS and it now remains to determine how this …
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Carbon Monoxide Generation in a Compartment With a Doorway During a Fire
The study of the products of combustion continues to have real-world relevance since the primary cause of death in building fires is smoke inhalation, with the majority of deaths from carbon monoxide, CO, poisoning. An experimental study was conducted to examine upper-layer structure plus provide …
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Experimental and numerical analysis of fuel cells
… generation, saturation effect in fuel cell, poisoning, and thermal stress) are studied that governs the operation of a Proton Exchange Membrane Fuel Cell (PEMFC) and Solid Oxide Fuel cell (SOFC). Additionally, experimental studies and numerical simulations on PEMFC gas flow channel, the …
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NOx Removal by LNT-SCR Dual-layer Catalysts
… catalyst. The physisorbed oxygen over the ceria-containing LNT catalyst led to a spatio-temporal temperature rise in the monolith upstream after the cyclic introduction of H2/CO to a pre-oxidized catalyst. The stored oxygen over ceria enhanced NO storage by in-situ NO2 formation, while it …
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Testing the suitability of local seaweeds and formulated feed as a food source for abalone (Haliotis midae Linnaeus) in an Integrated Land-based Aquaculture System
… for many applications. Developed and developing countries, through research, are fast seeking a cheap and stable supply of energy for an ever-increasing number of energyconsuming portable devices. The research focus is to have DMFCs meet this need at an affordable cost is problematic. There are …
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Investigating the use of CO-oximetry for simultaneous measurement of carboxyhaemoglobin and methaemoglobin in post-mortem blood
Carbon monoxide (CO) is a gas that exerts its toxicity on humans, when inhaled, by bonding with haemoglobin (Hb) to produce carboxyhaemoglobin (COHb). This results in tissue hypoxia which can be fatal at high blood saturation levels. Carboxyhaemoglobin may be measured using a Radiometer ABL825 FLEX …
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Nano-structured platinum-based catalysts for the complete oxidation of ethylene glycol and glycerol
Direct alcohol fuel cells are a viable alternative to the traditional hydrogen PEM fuel cell. Fuel versatility, integration with existing distribution networks, and increased safety when handling these fuels increases their appeal for portable power applications. In order to maximize their utility, …
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Analysis of tenability, ventilation, and water application in large-scale residential fires
… These experiments were focused on the tenability conditions within residential fire environments and the effect of ventilation and water application on the fire environment. Experiments were conducted in one-story and two-story residential structures, with nine occurring in the one-story …
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Condition monitoring of polymer electrolyte membrane fuel cells
As the global demand for energy continues to grow new technologies and systems must be developed to supply the market. This includes renewable energy generation, storage and conversion systems. The primary storage technology in use today in the portable electronics, the automotive sector and to a …
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Modifications and studies of the anode catalyst layer for the direct formic acid fuel cell
… the Direct Formic Acid Fuel Cell. Four different concepts will be discussed. The first is the study of the effect of Nafion® loading in the anode catalyst layer using electrochemical techniques. Nafion®, within the anode and cathode catalyst layers, plays a large role in the performance of fuel …
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Παρασκευή και μελέτη διμεταλλικών και τριμεταλλικών ηλεκτροκαταλυτών για κυψελίδες καυσίμου πολυμερικής μεμβράνης
… δηλητηρίασης. Το κυριότερο δηλητήριο είναι το CO, βασικό παραπροϊόν των διεργασιών παραγωγής H2 από τους υδρογονάνθρακες, οι οποίοι προς το παρόν αποτελούν την κύρια πηγή του. Στην παρούσα διδακτορική διατριβή εξετάστηκαν τα φαινόμενα δηλητηρίασης από το CO της ανόδου του PEMFC. Καθώς το CO …