Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Chemistry (89)
- Engineering (78)
- Materials Science and Engineering (66)
- Engineering Science and Materials (64)
- Electrical and Computer Engineering (55)
-
- Power and Energy (54)
- Chemical Engineering (26)
- Analytical Chemistry (24)
- Catalysis and Reaction Engineering (24)
- Nanoscience and Nanotechnology (16)
- Inorganic Chemistry (14)
- Polymer Chemistry (10)
- Organic Chemistry (9)
- Other Chemistry (5)
- Physics (5)
- Medicinal-Pharmaceutical Chemistry (4)
- Condensed Matter Physics (3)
- Environmental Chemistry (3)
- Medicine and Health Sciences (3)
- Biotechnology (2)
- Life Sciences (2)
- Radiochemistry (2)
- Semiconductor and Optical Materials (2)
- Aerospace Engineering (1)
- Applied Statistics (1)
- Artificial Intelligence and Robotics (1)
- Atomic, Molecular and Optical Physics (1)
- Institution
-
- Chinese Chemical Society | Xiamen University (71)
- University of Nebraska - Lincoln (10)
- City University of New York (CUNY) (5)
- California Polytechnic State University, San Luis Obispo (4)
- University of Kentucky (4)
-
- Virginia Commonwealth University (4)
- Georgia Southern University (3)
- LSU New Orleans (3)
- West Chester University (3)
- Portland State University (2)
- Purdue University (2)
- Seton Hall University (2)
- The British University in Egypt (2)
- University of Connecticut (2)
- Western Kentucky University (2)
- Air Force Institute of Technology (1)
- Bellarmine University (1)
- Boise State University (1)
- Chapman University (1)
- James Madison University (1)
- The University of Southern Mississippi (1)
- University of Arkansas, Fayetteville (1)
- University of Dayton (1)
- University of Louisville (1)
- University of Minnesota Morris Digital Well (1)
- Washington University in St. Louis (1)
- Keyword
-
- Supercapacitor (5)
- Electrochemistry (4)
- Graphene (4)
- Lithium-ion battery (4)
- Catalysis (3)
-
- Cyclic voltammetry (3)
- Electrochemical performance (3)
- Energy storage (3)
- Lead-acid battery (3)
- LiFePO4 (3)
- Solar cells (3)
- All vanadium redox flow batteries (2)
- Anode material (2)
- Anode materials (2)
- Biosensors (2)
- Carbon coating (2)
- Carbon materials (2)
- Cathode (2)
- Cathode material (2)
- Density functional theory (2)
- Electrocatalysis (2)
- Electrochemical sensor (2)
- Electrochemiluminescence (2)
- Electrodeposition (2)
- Gold nanoparticles (2)
- Hyperthermia (2)
- Lasers (2)
- Li-ion battery (2)
- Lithium ion batteries (2)
- Metal assisted etching (2)
- Publication
-
- Journal of Electrochemistry (71)
- Xiao Cheng Zeng Publications (7)
- Publications and Research (5)
- Chemistry Faculty Publications (4)
- Theses and Dissertations (4)
-
- LSU New Orleans Theses and Dissertations (3)
- STAR Program Research Presentations (3)
- Theses and Dissertations--Chemistry (3)
- Chemical Engineering (2)
- Chemistry Faculty Publications and Presentations (2)
- Department of Chemistry: Dissertations, Theses, and Student Research (2)
- Honors Scholar Theses (2)
- Masters Theses & Specialist Projects (2)
- Seton Hall University Dissertations and Theses (ETDs) (2)
- The Summer Undergraduate Research Fellowship (SURF) Symposium (2)
- Biology, Chemistry, and Environmental Sciences Faculty Articles and Research (1)
- College of Graduate Studies: Theses & Dissertations (1)
- Department of Textiles, Merchandising and Fashion Design: Dissertations, Theses, and Student Research (1)
- Dissertations (1)
- Electronic Theses and Dissertations (1)
- Faculty Publications (1)
- GS4 Student Scholars Symposium (1)
- Graduate Theses and Dissertations (1)
- Honors College Theses (1)
- Idaho Conference on Undergraduate Research (1)
- Master's Theses (1)
- McKelvey School of Engineering Graduate Student Theses & Dissertations (1)
- Senior Honors Projects, 2010-2019 (1)
- Theses and Dissertations--Chemical and Materials Engineering (1)
- Undergraduate Research Symposium 2015 (1)
- Publication Type
- File Type
Articles 121 - 130 of 130
Full-Text Articles in Materials Chemistry
Electrospun Titanium Dioxide And Silicon Composite Nanofibers For Advanced Lithium Ion Batteries, Kathleen Mccormac
Electrospun Titanium Dioxide And Silicon Composite Nanofibers For Advanced Lithium Ion Batteries, Kathleen Mccormac
College of Graduate Studies: Theses & Dissertations
A unique electrospinning method was implemented to fabricate composite nanofibers for lithium ion battery applications. The composite nanofibers were made of amorphous carbon, rutile phase TiO2, and cubic phase Si nanoparticles. Sulfur was utilized as a template to form void structures within the TiO2 nanofiber matrix. This provides the desired space for the Si expansion during the lithiation process. Phase, structure, composition, and morphology of the nanofibers were characterized using Raman spectroscopy, SEM, EDS, TGA, and powder XRD. Carbonized TiO2 nanofibers showed a low but stable specific capacity. Si Nanoparticles demonstrated an initially high but fast …
Synthesis, Surface Functionalization, And Biological Testing Of Iron Oxide Nanoparticles For Development As A Cancer Therapeutic, Stanley E. Gilliland Iii
Synthesis, Surface Functionalization, And Biological Testing Of Iron Oxide Nanoparticles For Development As A Cancer Therapeutic, Stanley E. Gilliland Iii
Theses and Dissertations
Iron oxide nanoparticles are highly researched for their use in biomedical applications such as drug delivery, diagnosis, and therapy. The inherent biodegradable and biocompatible nanoparticle properties make them highly advantageous in nanomedicine. The magnetic properties of iron oxide nanoparticles make them promising candidates for magnetic fluid hyperthermia applications. Designing an efficient iron oxide nanoparticle for hyperthermia requires synthetic, surface functionalization, stability, and biological investigations. This research focused on the following three areas: optimizing synthesis conditions for maximum radiofrequency induced magnetic hyperthermia, designing a simple and modifiable surface functionalization method for specific or broad biological stability, and in vitro and in …
Phthalimide-Based Π-Conjugated Small Molecules With Tailored Electronic Energy Levels For Use As Acceptors In Organic Solar Cells, Arthur D. Hendsbee, Seth M. Mcafee, Jon-Paul Sun, Theresa M. Mccormick, Ian G. Hill, Gregory C. Welch
Phthalimide-Based Π-Conjugated Small Molecules With Tailored Electronic Energy Levels For Use As Acceptors In Organic Solar Cells, Arthur D. Hendsbee, Seth M. Mcafee, Jon-Paul Sun, Theresa M. Mccormick, Ian G. Hill, Gregory C. Welch
Chemistry Faculty Publications and Presentations
The design, synthesis, and characterization of seven phthalimide-based organic π-conjugated small molecules are reported. The new materials are based on a phthalimide–thiophene–CORE–thiophene–phthalimide architecture. The CORE units utilized were phthalimide (M2), diketopyrrolopyrrole (M3), isoindigo (M4), naphthalene diimide (M5), perylene diimide (M6), and difluorobenzothiadiazole (M7); they were specifically selected to progressively increase the electron affinity of the resulting compound. A small molecule with no core (M1) was synthesized for comparison. Each material was synthesized through optimized direct heteroarylation cross-coupling procedures using bench top solvents in air. Combinations of …
Unhindered Triangulene Salt Pairs: Substitution-Dependent Contact Ion Pairing And Complex Solvent-Separated Discotic Ions In Solution, Subrahmanyam Modekrutti
Unhindered Triangulene Salt Pairs: Substitution-Dependent Contact Ion Pairing And Complex Solvent-Separated Discotic Ions In Solution, Subrahmanyam Modekrutti
Theses and Dissertations--Chemistry
This work sought to enforce aromatic interactions between compatible π-molecular orbital systems with ionic bonding. In this case the interacting partners are oppositely charged discotic triangulene derivatives. The observed properties of the heterodimeric ion-pairs likely arise due to a hypothetical synergy between electrostatics and π-interactions. The work presented here describes investigation of putative covalency arising from this hypothetical synergy in the electrostatics driven π-stacking. In order to probe this, various hypotheses were made and experiments were designed to test their validity. The results from the experiments show existence of contact ion-pairs and complex solvent-separated discotic ions in solution. The formation …
Ferrocene-Fused Derivatives Of Acenes, Tropones And Thiepins, Bidhya L. Maharjan
Ferrocene-Fused Derivatives Of Acenes, Tropones And Thiepins, Bidhya L. Maharjan
Theses and Dissertations--Chemistry
This research project is concentrated on tuning the properties of small organic molecules, namely polyacenes, tropones and thiepins, by incorporating redox-active transition metal centers π-bonded to terminal cyclopentadienyl ligands. Organometallic-fused acenequinones, tropones, thiepins and cyclopentadiene-capped polyacenes were synthesized and characterized. This work was divided into three parts: first, the synthesis of ferrocene-fused acenequinones, cyclopentadiene-capped acenequinones and their subsequent aromatization to polyacenes; second, the synthesis of ferrocene-fused tropones, thiotropones and tropone oxime; and third, the synthesis of ferrocene-fused thiepins. Ferrocene-fused quinones are the precursors to our target complexes. Our synthetic route to ferrocenequinones involved two-fold aldol condensation between 1,2-diformylferrocene and naphthalene-1,4-diol …
Plasma Treated Mesoporous Tio2 Thin Films For Energy Storage Applications, Allen D. Reed
Plasma Treated Mesoporous Tio2 Thin Films For Energy Storage Applications, Allen D. Reed
Theses and Dissertations--Chemistry
Mesoporous TiO2 films treated with N2/argon plasma or H2 plasma were studied for use in photoelectrochemical water splitting and electrochemical supercapacitors, respectively. Cubic-ordered mesoporous thin films were prepared by a templated sol-gel method. UV-Vis absorbance spectra indicated that nitrogen plasma treatment significantly reduced the band gap of the TiO2. XPS analysis showed that nitrogen atoms are incorporated into substitutional sites, rather than interstitial. Photocatalytic activity of nitrogen-doped TiO2 films was evaluated by chronoamperometry and linear sweep voltammetry. Compared to pristine TiO2, plasma-treated films showed remarkable photocurrent enhancement (up to 240 times) …
Heteroatom-Doped Nanoporous Carbons: Synthesis, Characterization And Application To Gas Storage And Separation, Babak Ashourirad
Heteroatom-Doped Nanoporous Carbons: Synthesis, Characterization And Application To Gas Storage And Separation, Babak Ashourirad
Theses and Dissertations
Activated carbons as emerging classes of porous materials have gained tremendous attention because of their versatile applications such as gas storage/separations sorbents, oxygen reduction reaction (ORR) catalysts and supercapacitor electrodes. This diversity originates from fascinating features such as low-cost, lightweight, thermal, chemical and physical stability as well as adjustable textural properties. More interestingly, sole heteroatom or combinations of various elements can be doped into their framework to modify the surface chemistry. Among all dopants, nitrogen as the most frequently used element, induces basicity and charge delocalization into the carbon network and enhances selective adsorption of CO2. Transformation of …
Colloidal Synthesis And Optical Characterizations Of Semiconductor Nanocrystals From Nontoxic Elements, Minh Q. Ho
Colloidal Synthesis And Optical Characterizations Of Semiconductor Nanocrystals From Nontoxic Elements, Minh Q. Ho
Theses and Dissertations
To date, the search efforts have shifted from the toxic II-VI, III-V and IV-VI semiconductors to more environmentally friendly materials. Among Group II-V semiconductors, Zn3P2 has shown to be a more benign option, similar to Group IV (Ge, Si) materials, for future applications in photovoltaics and optoelectronics. This work is dedicated to the development of wet-chemical synthetic routes of (1) Zn3P2 and (2) Group IV (Ge, Si, Si1-xGex) nanocrystals with precise control over composition, crystal structure, size and dispersity by adjusting different reaction parameters such as temperature, time and solvent …
Diazaborole Linked Porous Polymers: Design, Synthesis, And Application To Gas Storage And Separation, Zafer Kahveci
Diazaborole Linked Porous Polymers: Design, Synthesis, And Application To Gas Storage And Separation, Zafer Kahveci
Theses and Dissertations
The synthesis of highly porous organic polymers with predefined porosity has attracted considerable attention due to their potential in a wide range of applications. Porous organic polymers (POPs) offer novel properties such as permanent porosity, adjustable chemical nature, and noteworthy thermal and chemical stability. These remarkable properties of the POPs make them promising candidates for use in gas separation and storage. The emission of carbon dioxide (CO2) from fossil fuel combustion is a major cause of global warming. Finding an efficient separation and/or storage material is essential for creating a cleaner environment. Therefore, the importance of the POPs …
Reconfigurable Solid-State Dye-Doped Polymer Ring Resonator Lasers, Hengky Chandrahalim, Xudong Fan
Reconfigurable Solid-State Dye-Doped Polymer Ring Resonator Lasers, Hengky Chandrahalim, Xudong Fan
Faculty Publications
This paper presents wavelength configurable on-chip solid-state ring lasers fabricated by a single-mask standard lithography. The single- and coupled-ring resonator hosts were fabricated on a fused-silica wafer and filled with 3,3′-Diethyloxacarbocyanine iodide (CY3), Rhodamine 6G (R6G) and 3,3′-Diethylthiadicarbocyanine iodide (CY5)-doped polymer as the reconfigurable gain media. The recorded lasing threshold was ~220 nJ/mm2 per pulse for the single-ring resonator laser with R6G, marking the lowest threshold shown by solid-state dye-doped polymer lasers fabricated with a standard lithography process on a chip. A single-mode lasing from a coupled-ring resonator system with the lasing threshold of ~360 nJ/mm2 per pulse …