Browsing Chemistry Faculty Research, Publications and Presentations by Title
Now showing items 141-160 of 234
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Polyaniline Electrode Activation in Li Cells
Polyaniline (PANi) can be used as an electroactive organic cathode material in Li-cells with multiple redox states. The theoretical specific capacity of the emeraldine base (PEB) is 150 mAh g−1. In this study, we show how ... -
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Preparation of Low Surface Area Si-Alloy Anodes for Li-Ion Cells by Ball Milling
A new and simple 2-step milling technique is utilized to produce Si–Ti–N alloys with significantly reduced surface area compared to conventional ball milling, while still attaining a full amorphous active Si phase. Surface ... -
Properties and applications of protein-stabilized fluorescent gold nanoclusters: short review.
A review. Research is turning toward nanotechnol. for solns. to current limitations in biomedical imaging and anal. detection applications. New to fluorescent nanomaterials that could help advance such applications are ... -
Quantitative Determination of Carbon Dioxide Content in Organic Electrolytes by Infrared Spectroscopy
CO2 has been shown to be an effective additive to improve the cycling characteristics of silicon negative electrodes for Li-ion batteries. However, a quantitative technique for measuring the CO2 content in electrolyte is ... -
Quantitative Measurement of Compositional Inhomogeneity in NMC Cathodes by X-ray Diffraction Postprint
A novel X-ray diffraction (XRD) analysis technique is described for quantitatively measuring compositional inhomogeneity in Li[NixMnyCoz]O2 (NMC) cathode materials and NMC precursors. Single-phase rock salt precursors with ... -
Rapid mechanochemical synthesis of amorphous alloys
A rapid method for preparing amorphous alloys has been developed utilizing a SPEX high energy ball mill. Parameters such as ball size, mass of balls and milling time, were systematically optimized to prepare amorphous ... -
Regioselective Substituent Effects upon the Synthesis of Dipyrrins from 2-Formyl Pyrroles
The synthesis of symmetric α-free meso-H-dipyrrin hydrobromides from 5-H-2-formyl pyrroles was investigated. The self-condensation produces regioisomeric dipyrrins through the adoption of two mechanistic pathways. The key ... -
Relating 139La Quadrupolar Coupling Constants to Polyhedral Distortion in Crystalline Structures
A broad series of crystalline lanthanum oxide-based materials has been investigated through high-field 139La solid state nuclear magnetic resonance (ssNMR) spectroscopy and ab initio density functional theory (DFT) ... -
Reversible lithium insertion in catalytically graphitized sugar carbon
Highlights • First report of Li insertion in highly ordered catalytically derived graphite. • Fe catalyst combined with hard carbon precursors enable 1200 °C graphitization. • First report of highly ordered graphite ... -
The Reversible Magnesiation of Pb (Preprint)
Sputtered Pb films have been found to reversibly alloy electrochemically with magnesium in Grignard based electrolytes. The voltage curve shows a single plateau at about 125 mV vs. Mg, corresponding to the formation of ... -
Robust Synthesis of F-BODIPYs
F-BODIPYs are widely used in applications that rely upon their highly tunable optical properties. A protocol is established for the high-yielding synthesis of F-BODIPYs involving non-anhydrous reagents and not requiring ... -
Self-assembly of novel trimers using dipyrromethene ligands
Ligands comprising two dipyrromethene units linked at the beta-position have been used to prepare trimeric complexes with Zn-II and Co-II; the structure of the Zn-II complex is confirmed by X-ray analysis. -
A series of potent BODIPY photosensitisers featuring tellurophene motifs at boron† (Postprint)
This article describes the synthesis and photophysical properties of a series of BODIPY photosensitisers that feature tellurophene motifs appended at the boron centre. These compounds were obtained via nucleophilic ...