A5066459867- Metal-Organic Frameworks: Synthesis and Applications
- Catalytic Processes in Materials Science
- Advancements in Battery Materials
- Magnetism in coordination complexes
- Advanced Photocatalysis Techniques
- Carbon dioxide utilization in catalysis
- Catalysis and Hydrodesulfurization Studies
- Graphene research and applications
- Advanced Battery Materials and Technologies
- Electrocatalysts for Energy Conversion
- Radiopharmaceutical Chemistry and Applications
- Membrane Separation and Gas Transport
- CO2 Reduction Techniques and Catalysts
- Molecular Sensors and Ion Detection
- Zeolite Catalysis and Synthesis
- Semiconductor materials and interfaces
- Supramolecular Self-Assembly in Materials
- Nanocluster Synthesis and Applications
- Material Properties and Processing
- Nuclear Materials and Properties
- Crystal structures of chemical compounds
- Engineering Applied Research
- Dendrimers and Hyperbranched Polymers
- Material Properties and Failure Mechanisms
- Membrane-based Ion Separation Techniques
Jilin Province Science and Technology Department
2024
Northwestern University
2018-2023
Tianjin University
2023
Harbin Institute of Technology
2022
Anhui University of Technology
2021
Argonne National Laboratory
2020
University of Chicago
2020
Santa Clara University
2019
Education University of Hong Kong
2017
Wyoming Department of Education
2015
Topology and porosity control of Zr6-based MOFs was achieved by introducing steric functionalization into the conformations substituted tetracarboxylate linkers.
A desirable feature of metal–organic frameworks (MOFs) is their well-defined structural periodicity and the presence catalyst grafting sites (e.g., reactive −OH −OH2 groups) that can support single-site heterogeneous catalysts. However, one should not overlook potential role residual organic moieties, specifically formate ions occupy anchoring during MOF synthesis. Here we show how these species in a Zr-based MOF, NU-1000, critically alter structure, redox capability, catalytic activity...
Abstract The invention of efficient systems for the photocatalytic reduction CO 2 comprising earth‐abundant metal catalysts is a promising approach production solar fuels. One bottleneck to design highly selective and robust molecular complexes that are able transform gas. Cu II quaterpyridine complex [Cu(qpy)] 2+ ( 1 ) found be catalyst visible‐light driven in CH 3 CN using [Ru(bpy) ] (bpy: bipyridine) as photosensitizer BIH/TEOA (1,3‐dimethyl‐2‐phenyl‐2,3‐dihydro‐1 H ‐benzo[ d...
Solid supports play an indispensable role in heterogeneous catalysis, as they can directly affect the catalytic activity and selectivity of supported catalysts. However, specific roles such remain to be demystified owing difficulties obtaining precise structural information on To understand effects MOF topology, pore environment, metal identity node activity, a Ni catalyst was eight Zr- or Hf-MOFs based 8-connected nodes: namely M-NU-1200, M-NU-1000, M-NU-1008, M-NU-1010 (M = Zr, Hf)....
Activating the C-H bonds of alkanes without further oxidation to more thermodynamically stable products, CO and CO2, is a long-sought goal catalytic chemistry. Inspired by monocopper active site methane monooxygenase, we synthesized Cu-doped ZIF-8 metal-organic framework with 25% Cu 75% Zn in nodes activated it heating 200 °C dosing stepwise fashion O2, methane, steam. We found that does oxidize methanol formaldehyde. The catalysis persists through at least five cycles, beyond third cycle,...
Zn<sub>2</sub>GeO<sub>4</sub>@carbon nanowires directly grown on Cu foil using CVD method exhibit high reversible capacity and high-rate capability as LIB anode.
A representative metal–organic framework, NU-1000, was functionalized with MoSx. The previously determined crystal structure of the material, named MoSx-SIM, consists monometallic Mo(IV) ions two sulfhydryl ligands. metal are anchored to framework by displacing protons presented –OH/–OH2 groups on Zr6 node. As shown previously, MOF-supported complexes electrocatalytic for hydrogen evolution from acidified water. earlier electrocatalysis results, together nearly ideal formal potential...
Quantum dots enable a rapid, efficient and stable radiolabeling through chelator-free cation exchange, improve PET imaging of solid tumors.
The metal–organic framework (MOF), NU-1000, and its metalated counterparts have found proof-of-concept application in heterogeneous catalysis hydrogen storage among others. A vapor-phase technique, akin to atomic layer deposition (ALD), is used selectively deposit divalent Cu ions on oxo, hydroxo-bridged hexa-zirconium(IV) nodes capped with terminal –OH –OH2 ligands. subsequent reaction steam yields node-anchored, CuII-oxo, hydroxo clusters. We find that cluster installation via AIM (ALD...
In this work, a novel fluorescence sensor UiO-66-PSM based on post-synthetic modified metal-organic frameworks was prepared for the detection of berberine hydrochloride (BBH) in traditional Chinese herb Coptis. synthesized by simple Schiff base reaction with UiO-66-NH2 and phthalaldehyde (PAD). The luminescence quenching can be attributed to photo-induced electron transfer process from ligand BBH. exhibited fast response time, low limit, high selectivity Moreover, successfully applied...
Abstract Synthesis of single‐site catalysts, whereby the local structure and surrounding chemical environments are identical, has been challenging, particularly in heterogeneous catalysis, as support often presents spectrum chemically distinct binding sites. Yet, above criteria crucial attributing apparent catalytic performance to structural motif. The presented work augments on our previous using monometallic molybdenum sulfide tethered within a zirconium‐based metal‐organic framework...
We describe and experimentally illustrate a strategy for synthesizing reactant-accessible, supported arrays of well-confined, sub-nanometer to 2 nm, metal(0) clusters particles—here, copper, palladium, platinum. The synthesis entails (a) solution-phase binding metal ions by generation-2 poly(amidoamine) (PAMAM) dendrimer, (b) electrostatic uptake metalated, solution-dissolved, positively charged dendrimers the negatively pores zirconium-based metal–organic framework (MOF), NU-1000, (c)...
We examined MOF applications for understanding and potentially enabling carbon-economical, catalytic transformation of C 1 , 2 3 4 components natural gas to desirable commodity chemicals, intermediates, or model compounds.
Although lithium-sulfur (Li-S) batteries with a high theoretical energy density and low cost have attracted extensive research attention, their commercialization is still unsuccessful due to the poor cycle life caused by dissolution of polysulfides. It key challenge overcome polysulfide shuttling for achieving long-term cycling stability in Li-S batteries. Here we report novel strategy synthesis N, S-doped graphene nitrogen sulfur contents via situ self-assembly oxide thiourea-formaldehyde...
Carbon-coated LiFeBO3 nanoparticles have been successfully prepared by surfactant-assisted ball milling and a size selection process based on centrifugal separation. Monodispersed with dimensions of 10-20 nm are observed transmission electron microscope. The introduced surfactant acts as the dispersant well carbon source for nanoparticles. Greatly improved discharge capacities 190.4 mA h g(-1) at 0.1 C 106.6 1 rate achieved in when cycling cells between 1.0 V 4.8 V. Meanwhile, as-prepared...
An acrylate resin copolymerized with epoxy and amino was prepared in this paper, its polyhedral oligomeric silsesquioxane (POSS) modified nanocomposites were fabricated via physical blending. Results showed that glass transition temperature of the copolymer about 7.9 oC DSC. Dispersion aminopropyllsobutyl POSS is better than those Octalsobutyl POSS. Moreover, temperatures are close to matrix.
As a promising strategy to reduce greenhouse gas emissions, carbon dioxide capture from industrial and power plants has been proposed. Due its advantages of low consumption modest environmental impact, membrane technology widely used in the separation process. Advanced porous fillers can be successfully added into polymer matrix create mixed membranes (MMMs) with simple processing appropriate performance. The high porosity stability microporous materials make them desirable for use Herein,...