A5041684927- Superconducting Materials and Applications
- Physics of Superconductivity and Magnetism
- Catalytic Processes in Materials Science
- Electronic Packaging and Soldering Technologies
- Neuroendocrine Tumor Research Advances
- Lung Cancer Research Studies
- Gas Sensing Nanomaterials and Sensors
- Neuroblastoma Research and Treatments
- Mesoporous Materials and Catalysis
- Catalysis and Oxidation Reactions
- Transition Metal Oxide Nanomaterials
- Copper Interconnects and Reliability
- Superconductivity in MgB2 and Alloys
- Copper-based nanomaterials and applications
- Nanomaterials for catalytic reactions
- Lung Cancer Diagnosis and Treatment
- Electrocatalysts for Energy Conversion
- Electrodeposition and Electroless Coatings
- Kawasaki Disease and Coronary Complications
- Vibration and Dynamic Analysis
- Layered Double Hydroxides Synthesis and Applications
- Magnesium Oxide Properties and Applications
- Electrical Contact Performance and Analysis
- Traditional and Medicinal Uses of Annonaceae
- Membrane Separation and Gas Transport
Wythenshawe Hospital
2025
Manchester University NHS Foundation Trust
2025
Englewood Hospital and Medical Center
2024
University Hospitals Plymouth NHS Trust
2024
University of Connecticut
2010-2017
University of Minnesota
2015
University of Houston
1998-2000
Illinois Institute of Technology
1996
Argonne National Laboratory
1994-1996
University of Rajasthan
1972-1975
Water oxidation is the bottleneck in artificial photosynthetic systems that aim to split water into hydrogen and oxygen. However, occurs readily plants, catalyzed by Mn4O4Ca manganese cluster. In addition this, minerals are ubiquitous nature displaying layered tunnel structures. this study, mixed valent porous amorphous oxides (AMO), along with cryptomelane type (OMS-2) birnessite (OL-1) have been used as catalysts. Significantly higher turnovers were obtained AMO (290 mmol O2/mol Mn)...
Self-assembled multidoped cryptomelane hollow microspheres with ultrafine particles in the size range of 4–6 nm, and a very high surface area 380 m2 g−1 have been synthesized. The particle size, morphology, these materials are readily controlled via multiple framework substitutions. X-ray diffraction transmission electron microscopy (TEM) results indicate that as-synthesized OMS-2 pristine crystalline, no segregated metal oxide impurities. These corroborated by infrared (IR) Raman...
Manganese oxide octahedral molecular sieves (OMS) are important materials in environmental chemistry, electrochemistry, and heterogeneous catalysis. Here, a rapid process to prepare cryptomelane-type sieve (OMS-2) nanomaterials using microwave assisted hydrothermal technique (MW-HT) is presented. With the assistance of microwaves reaction, preparation time OMS-2 can be as short 10 s; up 4 days required conventional reaction. Direct observation reaction temperature pressure achieved real...
Mesoporous iron oxides (2-line ferrihydrite, α-Fe2O3, γ-Fe2O3, and Fe3O4) are successfully synthesized by modifying the reaction temperatures calcination atmospheres of sol–gel-based inverse micelle method. Different characterization techniques, such as PXRD, N2 sorption, SEM, HRTEM, Raman spectroscopy, XANES, performed to determine properties catalysts. Larger pore sizes can be obtained in mesoporous γ-Fe2O3 Fe3O4 compared with 2-line ferrihydrite α-Fe2O3. The catalytic performance examined...
Short reaction times and morphology control in the synthesis of inorganic materials under nonthermal conditions remain a challenge. Herein we report rapid, self-templating, method based on ultraviolet light to prepare metal oxide hierarchical structures. With this method, oxides was controlled readily without using templates.
Manganese oxides of octahedral molecular sieve (OMS-2) type have important applications in oxidation catalysis, adsorption, and as battery materials. The synthesis methods employed determine their morphology textural properties which markedly affect catalytic activity. In this work, a room temperature ultrasonic atomization assisted OMS-2 materials is demonstrated. This differs from previously reported that it simple, no-heat application leads to striking morphological characteristic...
A sucrose‐mediated aqueous sol–gel procedure was developed to synthesize MgO – Y 2 O 3 nanocomposite ceramics for potential optical applications. The synthesis involves the generation of a precursor foam containing Mg 2+ and 3+ cations via chemical thermal degradation sucrose molecules in solution. Subsequent calcination crushing gave nanocomposites form thin mesoporous flake‐like powder particles with uniform composition surface areas 27–85 m g − 1 , depending on conditions. flakes...
Continuous-flow synthesis of one-dimensional (1D) metal oxide nanostructures and/or their integration into hierarchical structures under nonthermal conditions is still a challenge. In this work, nonthermal, continuous-flow approach for the preparation γ-manganese (γ-MnO2) and cerium (CeO2) microspheres has been developed. By technique, γ-MnO2 materials with surface areas 240, 98, 87 m2/g CeO2 area 1 have fabricated successfully. Characterization was carried out using powder X-ray...
The powder-in-tube technique, which includes wire drawing and rolling, has been widely used to fabricate superconducting tapes for possible electric power applications. In the present study starting billet was reduced in size by groove rolling instead of drawing. To optimize deformation thermomechanical treatment processes, BSCCO wires various dimensions were fabricated. flat rolled a final thickness 250 µm. Short-length subjected series thermal steps. Phase development microstructural...
Flexible electroless nickel immersion gold (Flex ENIG) processes have been widely utilized for over two decades in flexible PCB fabrication with little modification or upgrade. With increasing demand electronics, miniaturization, and popularity of the Internet Things (IoT), continues to show growth coupled technology advancement. At heart ENIG is a specialized (EN) formulation that delivers columnar structure, which produces microcrack fracture mechanism upon bending. This eliminates risk...