A5036886737- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Metal-Organic Frameworks: Synthesis and Applications
- Organic Light-Emitting Diodes Research
- Electrochemical sensors and biosensors
- Advanced Nanomaterials in Catalysis
- Gas Sensing Nanomaterials and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photocatalysis Techniques
- Perovskite Materials and Applications
- Pigment Synthesis and Properties
- Luminescence Properties of Advanced Materials
- MXene and MAX Phase Materials
- Analytical Chemistry and Sensors
- Enzyme Catalysis and Immobilization
- Transition Metal Oxide Nanomaterials
- Covalent Organic Framework Applications
- Advanced Chemical Sensor Technologies
- Semiconductor materials and interfaces
Lewis University
2018-2024
University of North Carolina at Chapel Hill
2021-2024
This investigation explores optimum synthetic conditions for novel polymer-metal organic framework hybrid composites composed of Zr-terephthalate-based MOF UiO-66 and conductive polyaniline (PANI) nanofibers in an effort to optimize conductivity while minimizing structural deformation. Successful syntheses self-assembled PANI PANI@UiO-66 PANI@UiO-66-NH2 were confirmed using scanning electron microscopy, infrared spectroscopy, powder X-ray diffraction. The polymer-MOF show different bonding...
Abstract Conjugated polymers have a long history of exploration and use in organic solar cells, over the last twenty‐five years, marked increases cell efficiency been achieved. However, synthetic complexity these materials has also drastically increased, which makes scalability highest‐efficiency difficult. If conjugated could be designed to exhibit both high straightforward synthesis, road commercial reality would more achievable. For that reason, new approach was towards PTQ10...
In many respects, enzymes offer advantages over traditional chemical processes due to their decreased energy requirements for function and inherent greener processing. However, significant barriers exist the utilization of in industrial limited stabilities inability operate larger temperature pH ranges. Immobilization onto solid supports has gained attention as an alternative enhanced enzymatic performance stability. This study demonstrates co-immobilization glucose oxidase (GOx) horseradish...
Novel biocatalysts that feature enzymes immobilized onto solid supports have recently become a major research focus in an effort to create more sustainable and greener chemistries catalysis. Many of these novel biocatalyst systems metal-organic frameworks (MOFs), which been shown increase enzyme activity, stability, recyclability industrial processes. While the strategies used for immobilizing MOFs can vary, conditions always require buffer maintain functionality during immobilization. This...
Abstract Breath ammonia is an essential biomarker for patients with many chronic illnesses, such as kidney disease (CKD), liver (CLD), urea cycle disorders (UCD), and hepatic encephalopathy. However, existing breath sensors fail to compensate the impact of humidity complex breathing motions associated a human sample. Here, multimodal sensing system presented that integrates sensor based on thermally cleaved conjugated polymer, reduced graphene oxide (rGO), dynamics 3D folded...
Cleavable side chain based conjugated polymers (CSCPs) represent a unique approach to offering solution processability with added benefits via the elimination of insulating chains. This work highlights an optimally designed polythiophene-carboxylic acid CSCP, POET-T2-COOH, which achieves conductivity exceeding 350 S/cm in molecularly doped and cleaved films, 100-100,000 times higher than three other structurally isomeric CSCPs. The high POET-T2-COOH is accomplished new "cleavage doping"...
The morphological stability of an organic photovoltaic (OPV) device is greatly affected by the dynamics donors and acceptors occurring near device's operational temperature. These can be quantified glass transition temperature (Tg ) conjugated polymers (CPs). Because flexible side chains possess much faster dynamics, cleavage alkyl will reduce chain leading to a higher Tg . In this work, s for CPs are systematically studied with controlled cleavage. Isothermal annealing polythiophenes...
Thermal degradation by intrinsic morphological change and extrinsic oxidation remain outstanding challenges for bulk heterojunction (BHJ)-based polymer solar cells (PSCs). Postprocessing thermocleavage of side chains on the donor conjugated polymers using ester pyrolysis is a proven method to kinetically trap morphology via increased glass transition temperature (Tg) improved thermal resistance. We previously showed that having certain fraction thermocleavable (TCS) incorporated into...
Economic distress resulting from global dependence on diminishing fossil fuels that adversely impact the environment has led to increased interest in alternative green energy technologies. The photoelectrochemical cell (PEC), provides an attractive solution incorporates semiconductor materials capable of absorbing visible light power splitting water and create H 2 gas, a clean fuel source. PEC systems today, however, are not yet commercially viable due lack efficiency, stability cost...
Global environmental and economic impact from carbon emission has sparked abundant interest in the development of renewable photocatalytic based energy sources. In continued search for new versatile materials, metal organic frameworks (MOFs) have emerged as highly promising prospects, consisting ions or ion clusters bridged by linkers to form a porous 3-dimensional array. Attributes MOFs include ease tunability coupled with well defined surface areas structural alignment. UiO-66, Zr-bdc MOF,...