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Salve Regina: Organ Devotionals to the Blessed Virgin Mary: A Graduate Organ Recital
Get PDFThis thesis is a Graduate Organ Recital with accompanying program notes on the pieces performed. The program notes include composer biographies, formal analyses of the works, and discussions of performance practice concerns. The recital explores the rich tradition of Marian devotional music and features works by Jehan Titelouze (1562–1633), J.S. Bach (1685–1750), Charles-Marie Widor (1844–1937), Charles Tournemire (1870–1939), and Marcel Dupré (1886–1971)
Behind the Scenes - Printing the Little Blue Books, Slideshow
Get PDFA presentation made to compile photos of the printing process completed by Alyssa, Angel, Olivia, and Rafael of Graphic Communications and the Art Department. They worked together to create a workflow to print multiple copies of E. Haldeman Julius\u27s Little Blue Book, Fourteen Essays
IMPROVING THE ELECTROCHEMICAL PROPERTIES OF MnO2 BY DOPING WITH Fe FOR WATER SPLITTING AND SUPERCAPACITOR APPLICATION
Get PDFAn Abstract of the Thesis by
Joseph Okwe
These days when the issue of energy is talked about, it is usually more than just the usefulness of different types of energy. This topic now encompasses ways of generating and storing energy in the most efficient and sustainable way. For this reason, various research has shown that materials that are fabricated for the purpose of energy storage and conversion also find applications in other areas such as water splitting and supercapacitors. And so certain materials, when synthesized, can serve more than one purpose in either generating or storing energy. This project reports on the fabrication of electrodes by doping MnO2 with different percentages of Fe to get five sample electrodes namely, MnO2, Mn0.98Fe0.02O2, Mn0.95Fe0.05O2, Mn0.90Fe0.10O2 and Mn0.88Fe0.12O2 which were synthesized through hydrothermal method and deposited on a Ni-foam that serves as a substrate. These samples were examined by testing them for possible application as electrocatalyst for water splitting process and as electrodes for supercapacitors. When tested for electrocatalytic applications for hydrogen evolution reaction, of all the five samples Mn0.95Fe0.05O2 has the least overpotential value of 235 mV at 10 mA/cm2and a Tafel slope value of 171 mV/dec making it the best sample. Similarly, for oxygen evolution reaction, Mn0.95Fe0.05O2 has the least overpotential value of 278 mV at 10 mA/cm2 and a Tafel slope value of 44 mV/dec. All five electrodes show great stability for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) for over 1000 cycles. When tested for energy storage as supercapacitors, Mn0.88Fe0.12O2 performed best with a specific capacitance value of 65 F/g
Weede Construction, Undated
No full textBlack and white photo of the construction site for the Garfield W. Weede physical education building, possibly 1969 or 1970. The steel framework has started to be erected. A white fence blocks off the construction site. Tire tracks from work vehichles indicate the entrance to the site. A crane is in the background, not currently lifting anything.https://digitalcommons.pittstate.edu/weede_gym/1094/thumbnail.jp
Dudley T. Cornish
No full textPhoto of a faculty member who served as editor for the Midwest Quarterlyhttps://digitalcommons.pittstate.edu/yearbookphotos/1037/thumbnail.jp
AI Symposium Q&A
No full textMichelle Hudiberg asks a question during the Q&A session.https://digitalcommons.pittstate.edu/aisymp-photos-2025/1044/thumbnail.jp
Poster Break
No full textPeople gathered and talking around the postershttps://digitalcommons.pittstate.edu/aisymp-photos-2025/1020/thumbnail.jp
AI in the Workforce Panel
No full textAI in Workforce panelists, Santiago Morel, Berni, Scott Parish, and Magdalane Moy seated at the table. Andra Stefanoni, moderator, holds the microphone and asks a question.https://digitalcommons.pittstate.edu/aisymp-photos-2025/1029/thumbnail.jp
Mn3O4 Nanostructures as Cathodes for High-Energy-Density Zinc-lon Batteries
No full textZinc-ion batteries (ZIBs) are considered advanced battery technology to replace lithium-ion batteries because they are cost-effective, safe, and environmentally friendly energy storage systems. However, finding suitable cathode materials is a challenging task for ZIBs. In this study, pristine Mn3O4, nanostructures were prepared using the microwave-assisted solvothermal method and utilized as a cathode for ZIBs. The phase and crystalline properties were analyzed using X-ray diffraction (XRD). Scanning electron microscopy (SEM) was utilized to examine the morphology of the prepared samples. The electrochemical performance was evaluated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and charge-discharge cycling tests. The CV data measured indicated enhanced redox kinetics of the Mn3O, cathode, signifying its strong charge storage capability. As a result, the Mn3O4 cathode exhibits a high initial charge/discharge capacity of 223/173 mAh/g at a current density of 100 mA/g with a Coulombic efficiency of 76%. After 100 cycles, the Mn3O4 cathode showed a high reversible capacity of 221 mAh/g. The improved electrochemical properties are attributed to structural stabilization and enhanced ion transport. These findings highlight the potential applications of Mn3O4, as an efficient cathode material for next-generation ZIBs, contributing to the development of high-capacity sustainable energy storage solutions
Developing FeCo-NC Alloy For Optimizing Electrocatalytic Activity in Water Splitting and Oxygen Reduction
No full textThe growing need for sustainable energy has driven research into effective electrocatalysts for crucial reactions such as OER, HER, and ORR. This study focuses on the design of a FeCo-NC/CNT alloy catalyst with adjustable Fe/Co ratios to enhance electrocatalytic performance. The catalyst was created through hydrothermal and pyrolysis methods, resulting in a well-defined alloy structure supported by nitrogen-doped carbon. Characterization confirmed the successful incorporation of Fe and Co into the NC/CNT framework, boosting conductivity and increasing active sites. Electrochemical testing revealed that the Fe0.9Co0.1-CNT catalyst had the best catalytic performance of the group, with an OER overpotential of 247 mV, a HER overpotential of 71 mV at a current density of 10 mA/cm2 , with an ORR half-wave potential (E1/2) of 0.87 V vs. RHE. Its OER performance is close to that of Iridium Oxide, a benchmark noble metal catalyst, demonstrating its potential as a cost-effective and efficient alternative. The combination of Fe and Co in the NC/CNT matrix significantly improves reaction kinetics and electron transfer. These findings suggest that the FeCo-NC/CNT alloy catalyst could replace costly noble metal-based electrocatalysts in applications like fuel cells, metal-air batteries, and water-splitting systems. This research underscores the importance of tuning metal composition and optimizing structure to develop high-performance catalysts and advance sustainable energy solutions