A5011225540- Metal-Organic Frameworks: Synthesis and Applications
- Nanocluster Synthesis and Applications
- Covalent Organic Framework Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Photocatalysis Techniques
- Molecular Sensors and Ion Detection
- Machine Learning in Materials Science
- Catalytic Processes in Materials Science
- Advanced Nanomaterials in Catalysis
- Nanomaterials for catalytic reactions
- Advanced Cellulose Research Studies
- Catalysis and Oxidation Reactions
- Advancements in Battery Materials
- CO2 Reduction Techniques and Catalysts
- Quantum Dots Synthesis And Properties
- Organic and Molecular Conductors Research
- Advanced Battery Materials and Technologies
- Machine Learning and ELM
- Perovskite Materials and Applications
- Nanoplatforms for cancer theranostics
- Electrocatalysts for Energy Conversion
- Radical Photochemical Reactions
- Spectroscopy and Quantum Chemical Studies
- Carbon dioxide utilization in catalysis
Marquette University
2018-2024
Boston College
2023
Robert Bosch (Germany)
2023
Argonne National Laboratory
2023
Upcycling plastic wastes into value-added chemicals is a promising approach to put end-of-life back their ecocycle. As one of the polyesters that used daily, polyethylene terephthalate (PET) waste employed here as model substrate. Herein, nickel (Ni)-based catalyst was prepared via electrochemically depositing copper (Cu) species on Ni foam (NiCu/NF). The NiCu/NF formed Cu/CuO and Ni/NiO/Ni(OH)2 core–shell structures before electrolysis reconstructed NiOOH CuOOH/Cu(OH)2 active during...
Photocatalytic oxidative coupling of methane (OCM) to ethane promises a route value-added C2 products from an abundant and low-cost feedstock. However, selective activation the C–H bond CH4 without overoxidation CO2 has been major challenge. In this work, we present use Au-modified Bi2WO6 as prototypical photocatalyst, demonstrating high performance OCM through photocatalysis. A C2H6 production rate at 1.69 × 103 μmol·g–1·h–1 with approximately 85% selectivity was achieved, which ranks among...
Conductive metal organic frameworks (MOFs) represent a promising class of porous crystalline materials that have demonstrated potential in photo-electronics and photocatalytic applications. However, the lack fundamental understanding on charge transport (CT) mechanism as well correlation CT with their structure hampered further development. Herein, we report direct evidence 2D Cu-THQ MOFs temporal spatial behaviors carriers photoconductivity by combining three advanced spectroscopic methods,...
Atomically dispersed catalysts such as single-atom have been shown to be effective in selectively oxidizing methane, promising a direct synthetic route value-added oxygenates acetic acid or methanol. However, an important challenge of this approach has that the loading active sites by is low, leading low overall yield products. Here, we report can address issue. It utilizes metal-organic framework built with porphyrin linker, which provides high concentrations binding support atomically...
Rechargeable Mg batteries are a promising energy storage technology to overcome the limitations inherent Li ion batteries. A critical challenge in advancing is lack of suitable cathode materials. In this work, we report design that incorporates S functionality into two-dimensional metal-organic-frameworks (2D-MOFs). This new material enables good
In the past decades, many attempts have been made to mimic energy transfer (EnT) in photosynthesis, a key process occurring nature that is of fundamental significance solar fuels and sustainable energy. Metal-organic frameworks (MOFs), an emerging class porous crystalline materials self-assembled from organic linkers metal or cluster nodes, offer ideal platform for exploration directional EnT phenomena. However, placing donor acceptor moieties within same framework with atomistic precision...
We report the ultrafast charge separation dynamics in porphyrin-based Ce–TCPP MOFs using optical and X-ray transient absorption (XTA) spectroscopy.
Metal-organic frameworks (MOFs) with mobile charges have attracted significant attention due to their potential applications in photoelectric devices, chemical resistance sensors, and catalysis. However, fundamental understanding of the charge transport pathway within framework key properties that determine performance conductive MOFs devices remain underexplored. Herein, we report mechanisms photoinduced electron dynamics 2D M-HHTP (M=Cu, Zn or Cu/Zn mixed;...
We report a systematic study on the correlation of metal nodes in M-THQ conducting MOFs (M = Fe, Ni, Cu, and Zn; THQ tetra-hydroxybenzoquinone) with their structure, photophysical property, photoconductivity. found that structural preference these is controlled by node identity where Cu prefers square planar coordination which leads to 2D Kagome-type structure. Zn prefer an octahedral sphere 3D Fe-THQ has smallest band gap highest photoconduction as well long-lived ligand-to-metal charge...
Metal organic frameworks (MOFs) have emerged as a novel platform offering new promise for photocatalytic applications. In this work, we report mixed-node MOF (MOF-74) based on earth-abundant metals (i.e., Co and Fe) highly active robust photocatalysts visible light-driven H2 generation. Using in situ X-ray absorption spectroscopy which allows us to selectively probe the individual metal node MOFs, unambiguously identified catalytic sites captured key intermediate species under standard...
Quantum dot gel is more efficient than quantum dots for photocatalytic organic synthesis due to the removal of surface ligands during gelation.
Metal–organic framework (MOF)-supported single-atom catalysts (SACs) possess integrated unique capabilities of both MOF and SACs, which represent a promising class for photocatalytic applications. Herein, we report the incorporation nickel (Ni) SACs onto its zirconium node functionalization organic linker with perylene tetracarboxylic dianhydride (PDA), resulting in formation hybrid (denoted as Ni-PiU) significantly enhanced light absorption ability visible region. Using combination...
2D conductive metal organic frameworks (MOFs) have become promising candidates for applications in electronic and photoelectronic devices. However, the lack of a fundamental understanding charge transport mechanism synthetic design to alter their conductivity limits potential applications. In this work, we report synthesis two 1D Cu–pyrene coordination nanosheets, Cu–pyrene-4,5,9,10 tetrathiol (Cu-PTT) Cu–2,7-di-tert-butylpyrene-4,5,9,10-tetrathiol (Cu–tBuPTT), as models MOFs, where...
Abstract Metal–organic frameworks (MOFs) with mobile charges have attracted significant attention due to their potential applications in photoelectric devices, chemical resistance sensors, and catalysis. However, fundamental understanding of the charge transport pathway within framework key properties that determine performance conductive MOFs devices remain underexplored. Herein, we report mechanisms photoinduced electron dynamics 2D M−HHTP (M=Cu, Zn or Cu/Zn mixed;...
The rational design of cutting-edge materials for an efficient solar energy conversion process is a challenging task, which demands fundamental understanding the mechanisms operative during photoinduced physical and chemical reactions. In response to these issues, progress in field has steered attention toward use time-resolved spectroscopic techniques resolve multiple intermediate species involved Thanks advent pump–probe technique, leads development various methods, significant been made...
Porous crystalline materials such as metal organic frameworks (MOFs) and covalent (COFs) represent a novel class of for catalysis due to their inherent porous nature, exceptional thermal chemical stability, structural flexibility. While many photocatalytic systems based on these have been developed in the past decade, significant gap exists our understanding correlation photophysical properties MOFs/COFs with structure, which hinders accurate prediction informed design. We aim address this...
Abstract Rechargeable Mg batteries are a promising energy storage technology to overcome the limitations inherent Li ion batteries. A critical challenge in advancing is lack of suitable cathode materials. In this work, we report design that incorporates S functionality into two‐dimensional metal‐organic‐frameworks (2D‐MOFs). This new material enables good 2+ capacity and outstanding cyclability. It was found upon initial insertion disinsertion, there an apparent structural transformation...
Emissive covalent organic frameworks (COFs) are a promising class of crystalline materials that have demonstrated applications for sensing and light-emitting diodes. However, white light emission from single COF has not been achieved yet as it requires multicomponent chromophores simultaneously emit blue, green, red light. In this work, we report the successful synthesis with efficient by utilizing tunable properties 2,1,3-benzothiadazole after incorporating different functional groups on...
Optical Pump THz Probe (OPTP) Spectroscopy is an outstanding technique to understand photoconductivity in emerging materials. We utilized OPTP explore the porous crystalline metal-organic frameworks (MOFs). MOFs are highly and their properties can be adjusted by synthesize chemical composition, making them tool box for advanced ultralight electro-optical applications. These applications limited insight into underlying photophysics MOFs. Our results revealed ultrafast photoconductivity. were...
Biocompatible composite containing cellulose (CEL) and chitosan (CS) was prepared in a facile one-pot synthetic method which simple ionic liquid, 1-butyl-3-methylimmidazolium chloride [BMIm+Cl-], used as sole solvent. The found to possess unique properties including hemostasis (stop bleeding initiate healing od wounds), bactericide (antimicrobial activity against various bacteria antibiotic resistant bacteria) is an excellent adsorbent for pollutants (heavy metal ions, endocrine disruptors),...
Metal Organic Frameworks (MOFs) are a class of highly porous crystalline materials that constructed from zero- or one-dimensional inorganic chains in combination with multitopic organic ligands. 1 They have received great attention recently due to their large surface area, tunable porosity, and easy preparation, which lead versatile applications including gas storage 2 separation 3 , sensing 4 catalysis 5 drug delivery 6 . The versatility MOFs is further entrenched the vast available design...
Porous crystalline materials such as metal organic frameworks (MOFs) represent a novel class of for catalysis due to their inherent porous nature, exceptional thermal and chemical stability, structural flexibility. While many photocatalytic systems based on these have been developed in the past decade, significant gap exists our understanding correlation photophysical properties MOFs with structure, which hinders accurate prediction informed design. We aim address this challenge using an...
Optical Pump THz Probe (OPTP) Spectroscopy is an outstanding technique to understand photoconductivity in emerging materials. We utilized OPTP explore the porous crystalline metal-organic frameworks. The results agreed with catalytical activity measurements and demonstrate that catalysis this material more determined by than usual catalytic chemistry.
Profiles"Scientific exchange between Salonen and Medina nucleated several years ago during their postdoctoral time in Munich working on covalently connected framework materials… Sharing the excitement about science has been key to maintaining a functional long-term collaboration using only online methods…" Find out more create frameworks from multiple components.A Collaboration Create Functional Frameworks Multiple Components e202309585Introducing... "In five years, I hope be an experienced...
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