# Browse Dissertations and Theses - Chemistry by Contributor "Wieckowski, Andrzej"

• (2011-05-25)
Accurate measurement of enzyme kinetics is an essential part of understanding the mechanisms of biochemical reactions. The typical means of studying such systems use stirred cuvettes, stopped-flow apparatus, microfluidic ...

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• (1992)
This thesis presents results of ex situ ultrahigh vacuum (UHV) studies of adsorption of reversibly adsorbing anions and anion-like urea molecule on platinum and rhodium single crystal electrodes. It reports on the composition ...

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• (1990)
Adsorption on solids is a complicated process and in most cases, occurs as the early stage of other more complicated processes, i.e. chemical reactions, electrooxidation, electroreduction. The research reported here combines ...

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• (2011-05-25)
The completion of the Human Genome Project has led us to the next frontier of proteomics-understanding functions and structures of the proteome. With an estimated one million functionally distinctive proteins, a means for ...

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• (2001)
While aggressive anions such as chloride are usually studied to elucidate corrosion processes to work ultimately toward inhibition, its corrosive properties can be successfully utilized in the drive for higher energy and ...

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• (2004)
The spontaneously deposited Pt/Pd catalyst was optimized. The optimum palladium coverage for unsupported platinum black was theta = 0.79, whereas for carbon-supported platinum black it was theta = 1.39. The catalyst was ...

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• (2001)
After investigating current densities obtained from methanol oxidation, osmium apparently promoted the reaction on a platinum surface. However, osmium is a less effective promoter on a Pt(111) surface than ruthenium at low ...

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• (2011-01-14)
Neuropeptides affect the activity of the myriad of neuronal circuits in the brain. They are under tight spatial and chemical control and the dynamics of their release and catabolism directly modify neuronal network activity. ...

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• (1996)
This thesis describes results of a combined ultra-high vacuum (UHV)-electrochemistry instrument for structual and compositional surface analysis of anions and ultra-thin metallic films of copper and silver deposited on ...

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• (2010-05-20)
Photoelectron spectroscopy and electrochemical techniques have been used to study commercial and model electrocatalysts for fuel cell applications. The overlying goal of this work is to gain a better understanding of the ...

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• (1992)
Electrode potential-dependent NMR measurements of a $\sp{13}$C adsorbate on platinum were conducted for the first time. The method that I have developed has the capability of becoming a viable analytical technique in surface ...

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• (2002)
Because it is known that the adsorption of ions on a metal affects the corrosion resistance of that metal, ion adsorption on aluminum is an important issue. In this study, the adsorption/accumulation of proposed inhibiting ...

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• (2007)
Surface diffusion of CO adsorbed on Pt nanoparticle catalysts was measured at the solid/liquid interface at and near room temperature, 253 K--293K, by using electrochemical nuclear magnetic resonance (EC-NMR) spectroscopy ...

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• (2010-05-19)
In support of the recent interest in fuels from renewable resources for fuel cells, the intermediates of the oxidation of formic acid and ethanol to CO2 on platinum electrodes have been examined. The adsorbed carbon monoxide ...

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• (1991)
A combined electrochemical and surface analytical study of iron oxidation, passive film formation and corrosion inhibitor interaction is presented. Ultrahigh vacuum surface analysis by Auger electron spectroscopy (AES), ...

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• (2010-08-20)
There is a growing awareness of the need for basic and applied energy research due to the environmental impact of energy use and limitations in the supply of energy sources. In this work, electrochemical research is ...

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• (1989)
This thesis is composed of two parts. The first focuses on the surface electrochemistry of a well-defined Rh(111) electrode, while the second part deals with exploring the crystallographic effects in electrocatalysis.

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• (2009)
In addition to overcoming the slow kinetics of the ORR, another critical issue to low temperature fuel cells is the gradual loss of performance due to the degradation of the cathode catalyst under the harsh operating ...

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• (2001)
In recent years, fuel cell technology has become an intense focus of the energy research community as a potentially viable alternative to emissions-producing devices. Both methanol and formic acid are promising fuels for ...

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• (1996)
In the United States alone it is estimated that annual corrosion-related damages cost approximately 100 billion dollars. Clearly, much effort is needed to reduce the detrimental efforts of corrosion. One approach to ...

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