Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Materials Science and Engineering (10)
- Catalysis and Reaction Engineering (9)
- Physical Sciences and Mathematics (8)
- Electrical and Computer Engineering (7)
- Chemistry (4)
-
- Mechanical Engineering (4)
- Engineering Science and Materials (3)
- Materials Chemistry (3)
- Other Chemical Engineering (3)
- Physical Chemistry (3)
- Biomedical Engineering and Bioengineering (2)
- Electromagnetics and Photonics (2)
- Environmental Sciences (2)
- Nanotechnology Fabrication (2)
- Oil, Gas, and Energy (2)
- Optics (2)
- Physics (2)
- Power and Energy (2)
- Semiconductor and Optical Materials (2)
- Agricultural and Resource Economics (1)
- Agronomy and Crop Sciences (1)
- Arts and Humanities (1)
- Bioresource and Agricultural Engineering (1)
- Chemicals and Drugs (1)
- Civil and Environmental Engineering (1)
- Computer Engineering (1)
- Education (1)
- Environmental Chemistry (1)
- Institution
-
- University of South Carolina (8)
- Selected Works (5)
- SelectedWorks (3)
- Sheridan College (3)
- University of Kentucky (3)
-
- Brigham Young University (2)
- Chinese Chemical Society | Xiamen University (2)
- Olivet Nazarene University (2)
- Cleveland State University (1)
- Louisiana State University (1)
- Missouri University of Science and Technology (1)
- Purdue University (1)
- Tashkent Institute of Chemical Technology (1)
- The British University in Egypt (1)
- University of Arkansas, Fayetteville (1)
- University of Louisville (1)
- University of Mississippi (1)
- University of Nebraska - Lincoln (1)
- University of South Florida (1)
- Publication Year
- Publication
-
- Faculty Publications (8)
- Faculty Publications and Scholarship (3)
- Center for Applied Energy Research Faculty and Staff Publications (2)
- Jason R. Hattrick-Simpers (2)
- Journal of Electrochemistry (2)
-
- Ralph E. White (2)
- Theses and Dissertations (2)
- Adrian Bonilla-Petriciolet (1)
- CHEMISTRY AND CHEMICAL ENGINEERING (1)
- Chemical & Biomedical Engineering Faculty Publications (1)
- Chemical Engineering (1)
- Chemical and Biochemical Engineering Faculty Research & Creative Works (1)
- Chemical and Materials Engineering Faculty Publications (1)
- Department of Biological Systems Engineering: Dissertations and Theses (1)
- Electronic Theses and Dissertations (1)
- Faculty and Student Publications (1)
- Faculty of Engineering University of Malaya (1)
- Fathi Habashi (1)
- Graduate Theses and Dissertations (1)
- Honors Program Projects (1)
- LSU Doctoral Dissertations (1)
- Scholar Week 2016 - present (1)
- Steven S.C. Chuang (1)
- The Summer Undergraduate Research Fellowship (SURF) Symposium (1)
- USF Tampa Graduate Theses and Dissertations (1)
- Publication Type
- File Type
Articles 31 - 39 of 39
Full-Text Articles in Chemical Engineering
Generation Of Biomarkers From Anthrax Spores By Catalysis And Analytical Pyrolysis, Phillip R. Smith
Generation Of Biomarkers From Anthrax Spores By Catalysis And Analytical Pyrolysis, Phillip R. Smith
Theses and Dissertations
Anthrax spores, in weaponized form, are dangerous biological warfare agents. Handheld technology for the rapid detection of anthrax is greatly needed to improve national security. Methods to detect anthrax spores are diverse, with most taking at least an hour for positive identification. A viable option for rapid detection is analytical pyrolysis (AP), which produces chemicals containing taxonomical information (biomarkers). AP methods are reviewed and critically analyzed to show that reproducible detection of anthrax spores in a rapid manner (< 5 min) with a handheld device is not currently possible. A promising alternative to AP is the use of a catalyst to produce biomarkers from anthrax spores with improved selectivity and reproducibility. Catalytic materials having promise for this include platinum, nickel, and superacids. Experiments evaluating several of these materials are described. A biomarker mass spectral library was created, based on information available in the scientific literature, to facilitate analysis and identification of the biomarkers produced experimentally. The RAMFAC algorithm was used to deconvolute chromatographic peaks to produce clean mass spectra and match them against entries in the biomarker library. While the library is not complete, its use with the RAMFAC algorithm enabled detection of many important biomarkers in experiments involving catalytic breakdown of anthrax spores. Experimental results from preliminary tests of several catalysts are presented and discussed. Addition of catalysts in the form of platinum nanoclusters and superacids to bacterial spores in a commercial pyrolyzer effected an increase in the amount of biomarkers produced at mild conditions over traditional pyrolysis methods. Electroformed nickel mesh, on the other hand, demonstrated low catalytic activity for the production of biomarkers, likely due to poor contact of the spores with the mesh. Biomarkers similar to those published in the literature were observed, including dipicolinic acid, picolinic acid, propionamide, acetamide, diketopiperazines, fatty acids, furfuryl alcohol, and DNA bases. A statistically designed factorial study was used to determine the importance of temperature, spore loading, and nanocluster loading on the production of three important biomarkers. The relative importance of these variables differs for each of the three important biomarkers, suggesting they are produced by different reaction mechanisms.
Electrodeposition Of Nickel-Copper Alloys And Nickel-Copper-Alumina Nanocomposites Into Deep Recesses For Mems, Amrit Panda
Electrodeposition Of Nickel-Copper Alloys And Nickel-Copper-Alumina Nanocomposites Into Deep Recesses For Mems, Amrit Panda
LSU Doctoral Dissertations
Electrodeposition is an important component in the fabrication of micro electro mechanical systems (MEMS). Nickel is the most commonly used material to produce three dimensional microstructures and few material alternatives have been demonstrated. In this dissertation, electrodeposited Ni-Cu alloys and nanocomposites are investigated as possible replacements for nickel in microsystems. Ni-Cu alloys are attractive for their corrosion resistance, magnetic and thermophysical properties. Alumina nanoparticulates included into metal matrices improve hardness and tribology of deposits. The Ni-Cu alloys and Ni-Cu-g-Al2O3 nanocomposites were electrodeposited from a citrate electrolyte, both at low and high pH. Electrodeposition experiments were performed in recessed microelectrodes 500 …
Electrochemical Synthesis And Characterization Of The Nickel Electropolyurushiol Coordination Polymer, Feng Gao, Guo-Cai Shen, Jie-Yuan Tang, Wen-Gong Zhang
Electrochemical Synthesis And Characterization Of The Nickel Electropolyurushiol Coordination Polymer, Feng Gao, Guo-Cai Shen, Jie-Yuan Tang, Wen-Gong Zhang
Journal of Electrochemistry
The nickel electropolyurushiol coordination polymer(EPU Ni 2+ ) was obtained by the reaction between nickel chloride isopropyl alcohol solution with electropolyurushiol (EPU).The electrochemical polymerization of urushiol and the preparation of nickel electropolyurushiol coordination polymer were investigated.The coordination polymer was characterized by XPS,FT_IR,DMTA and AES methods,and its composition and structure were determined.The content of Ni 2+ reached up to 7.5%. It was shown that there was certain coordination between Ni 2+ and electropolyurushiol in the coordination polymer,thus cross_links were formed.Therefore the glass transition temperature of the coordination polymer increased and heat resistance was enhanced considerably.
Modeling Of A Nickel-Hydrogen Cell: Phase Reactions In The Nickel Active Material, B. Wu, Ralph E. White
Modeling Of A Nickel-Hydrogen Cell: Phase Reactions In The Nickel Active Material, B. Wu, Ralph E. White
Faculty Publications
No abstract provided.
Investigation Of A Complex Lithium Cobalt Nickel Oxide As Lithium Ion Battery Cathode Materials Prepared By A New Citrate Sol-Gel Method, Jing-Li Han, Qing Guo Liu
Investigation Of A Complex Lithium Cobalt Nickel Oxide As Lithium Ion Battery Cathode Materials Prepared By A New Citrate Sol-Gel Method, Jing-Li Han, Qing Guo Liu
Journal of Electrochemistry
The synthesis and electrochemical characteristics of lithium cobalt nickel oxide as cathode materials for rechargeable lithium batteries were investigated. It was clarified from these investigations that lithium cobalt nickel oxide has been produced from basic cobalt carbonate,basic nickel carbonate, lithium carbonate, and citrate. LiNi 0.8 Co 0.2 O 2 prepared under the stream of oxygen gas showed a higher cycling capacity of (～190 mAhg 1 ).
Self‐Discharge Model Of A Nickel‐Hydrogen Cell, B. Wu, Ralph E. White
Self‐Discharge Model Of A Nickel‐Hydrogen Cell, B. Wu, Ralph E. White
Faculty Publications
No abstract provided.
A Multiphase Mathematical Model Of A Nickel/Hydrogen Cell, Pauline De Vidts
A Multiphase Mathematical Model Of A Nickel/Hydrogen Cell, Pauline De Vidts
Faculty Publications
No abstract provided.
Thermal Characteristics Of A Nickel-Hydrogen Battery, Junbom Kim, T. V. Nguyen, Ralph E. White
Thermal Characteristics Of A Nickel-Hydrogen Battery, Junbom Kim, T. V. Nguyen, Ralph E. White
Faculty Publications
The maximum allowable temperature difference inside a nickel-hydrogen battery to avoid water relocation was calculated by using a graphical method together with a vapor pressure vs. temperature correlation equation for water vapor over potassium hydroxide solution. An equation was developed for this maximum allowable temperature difference for vessel-wall temperatures from 0 to 30°C and potassium hydroxide concentrations from 20 to 32%. A heat-generation equation for the nickel-hydrogen battery was used to investigate the effect of the location of heat generation on the maximum temperature in the cell and the temperature distribution in the cell.
A Mathematical Model Of A Sealed Nickel-Cadmium Battery, Deyuan Fan, Ralph E. White
A Mathematical Model Of A Sealed Nickel-Cadmium Battery, Deyuan Fan, Ralph E. White
Faculty Publications
A mathematical model for the charge and discharge of a sealed nickel-cadmium (Ni-Cd) battery is presented. The model is used to study the effect of transport properties of the electrolyte and kinetic parameters of the electrode reactions on the cell performance during the charge and discharge period. The model can also be used to demonstrate the changes of cell performance during cycling. Some comparisons between model predictions and experimental results indicate that the model predictions appear to fit the experimental data well. Sensitivity analyses illustrate that the sealed nickel-cadmium battery operates under activation control. It is also shown theoretically that …