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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Guidelines to Develop Efficient Photocatalysts for Water Splitting

Garcia Esparza, Angel T. 03 April 2016 (has links)
Photocatalytic overall water splitting is the only viable solar-to-fuel conversion technology. The research discloses an investigation process wherein by dissecting the photocatalytic water splitting device, electrocatalysts, and semiconductor photocatalysts can be independently studied, developed and optimized. The assumption of perfect catalysts leads to the realization that semiconductors are the limiting factor in photocatalysis. This dissertation presents a guideline for efficient photocatalysis using semiconductor particles developed from idealized theoretical simulations. No perfect catalysts exist; then the discussion focus on the development of efficient non-noble metal electrocatalysts for hydrogen evolution from water reduction. Tungsten carbide (WC) is selective for the catalysis of hydrogen without the introduction of the reverse reaction of water formation, which is critical to achieving photocatalytic overall water splitting as demonstrated in this work. Finally, photoelectrochemistry is used to characterize thoroughly Cu-based p-type semiconductors with potential for large-scale manufacture. Artificial photosynthesis may be achieved by following the recommendations herein presented.
2

Characterisation of dispersed, platinum-coated fuel cell electrodes

Sheppard, Sally-Ann January 1996 (has links)
No description available.
3

Electrochemical Characterization of Platinum based anode catalysts for Polymer Exchange Membrane Fuel Cell.

Gcilitshana, Oko Unathi. January 2008 (has links)
<p>In this study, the main objective was to investigate the tolerance of platinum based binary anode catalysts for CO poisoning from 10ppm up to1000ppm and to identify the<br /> best anode catalysts for PEMFCs that tolerates the CO fed with reformed hydrogen.</p>
4

Development of polyaniline nanotube electrocatalysts and sesor devices for phenolic-pollutants.

Klink, Michael John. January 2007 (has links)
<p>As a source of life, water is one of the most precious commodities for all living organisms. Water resources are reported to be declining in numbers or the amount of water present and the existing onses are being polluted as a result of negligent human activities and intense industrialisation. thus, there is an ever increasing demand to monitor the quality of portable and waste water in our surroundings in real time. This study has been directed towards the prepaparation of polyanilines.</p>
5

Electrochemical Characterization of Platinum based anode catalysts for Polymer Exchange Membrane Fuel Cell.

Gcilitshana, Oko Unathi. January 2008 (has links)
<p>In this study, the main objective was to investigate the tolerance of platinum based binary anode catalysts for CO poisoning from 10ppm up to1000ppm and to identify the<br /> best anode catalysts for PEMFCs that tolerates the CO fed with reformed hydrogen.</p>
6

The electrochemistry of platinum-isocyanide nonostructured systems

Horswell, Sarah L. January 1999 (has links)
No description available.
7

Development of polyaniline nanotube electrocatalysts and sesor devices for phenolic-pollutants.

Klink, Michael John. January 2007 (has links)
<p>As a source of life, water is one of the most precious commodities for all living organisms. Water resources are reported to be declining in numbers or the amount of water present and the existing onses are being polluted as a result of negligent human activities and intense industrialisation. thus, there is an ever increasing demand to monitor the quality of portable and waste water in our surroundings in real time. This study has been directed towards the prepaparation of polyanilines.</p>
8

Development of polyaniline nanotube electrocatalysts and sesor devices for phenolic-pollutants

Klink, Michael John January 2007 (has links)
Philosophiae Doctor - PhD / As a source of life, water is one of the most precious commodities for all living organisms. Water resources are reported to be declining in numbers or the amount of water present and the existing onses are being polluted as a result of negligent human activities and intense industrialisation. thus, there is an ever increasing demand to monitor the quality of portable and waste water in our surroundings in real time. This study has been directed towards the prepaparation of polyanilines. / South Africa
9

Electrochemical Characterization of Platinum based anode catalysts for Polymer Exchange Membrane Fuel Cell

Gcilitshana, Oko Unathi January 2008 (has links)
Magister Scientiae - MSc / In this study, the main objective was to investigate the tolerance 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. / South Africa
10

Metal oxide coated electrodes for oxygen reduction

Baez Baez, Victor Antonio January 1994 (has links)
No description available.

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