A5101704977- Advanced ceramic materials synthesis
- Advanced materials and composites
- Advanced NMR Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
- Aluminum Alloys Composites Properties
- NMR spectroscopy and applications
- MXene and MAX Phase Materials
- Covalent Organic Framework Applications
- Laser-Plasma Interactions and Diagnostics
- Catalytic Processes in Materials Science
- Optimal Power Flow Distribution
- Coal Properties and Utilization
- Chemical Synthesis and Characterization
- Lignin and Wood Chemistry
- Infrastructure Resilience and Vulnerability Analysis
- Fiber-reinforced polymer composites
- Catalysis and Hydrodesulfurization Studies
- Solid-state spectroscopy and crystallography
- Graphene research and applications
- High Entropy Alloys Studies
- Superconducting Materials and Applications
- Advanced X-ray Imaging Techniques
- Metal-Organic Frameworks: Synthesis and Applications
- Oxidative Organic Chemistry Reactions
Chinese Academy of Sciences
2007-2024
Zhengzhou University of Light Industry
2023-2024
Qingdao Institute of Bioenergy and Bioprocess Technology
2022-2024
Shanghai Institute of Ceramics
2007-2023
Kunming University
2014-2023
Iowa State University
2022
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
2018-2020
Jilin Medical University
2019-2020
Jilin University
2018-2020
Xiamen University
2008-2018
(1)H NMR signal amplification by reversible exchange (SABRE) was observed for pyridine and pyridine-d5 at 9.4 T, a field that is orders of magnitude higher than what typically utilized to achieve the conventional low-field SABRE effect. In addition emissive peaks hydrogen spins ortho positions substrate (both free bound metal center), absorptive signals are from hyperpolarized orthohydrogen Ir-complex dihydride. Real-time kinetics studies show polarization build-up rates these three species...
Activation of a catalyst [IrCl(COD)(IMes)] (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene; COD cyclooctadiene)] for signal amplification by reversible exchange (SABRE) was monitored in situ hyperpolarized proton NMR at 9.4 T. During the catalyst-activation process, moiety undergoes hydrogenation that leads to its complete removal from Ir complex. A transient hydride intermediate is observed via signatures, which could not be detected using conventional nonhyperpolarized solution...
Two synthetic strategies are investigated for the preparation of water-soluble iridium-based catalysts NMR signal amplification by reversible exchange (SABRE). In one approach, PEGylation a variant N-heterocyclic carbene provided novel catalyst with excellent water solubility. However, while SABRE-active in ethanol solutions, lost activity >50% water. second synthesis di-iridium complex precursor where cyclooctadiene (COD) rings have been replaced CODDA (1,2-dihydroxy-3,7-cyclooctadiene)...
Liquid-phase hydrodeoxygenation (HDO), catalyzed by metal or metal-acid sites, provides an effective catalytic strategy to remove oxygen-containing functionalities of lignin-derived phenolic compounds on the route fuels and chemicals. Developing catalyst with high activity stability is crucial for such a chemical process but still remains significant challenge. In this contribution, highly dispersed subnanometric Ru clusters (<1.5 nm) encapsulated in cavities MWW zeolites, including HMCM-22...
Abstract By using 5.75 and 47.5 mT nuclear magnetic resonance (NMR) spectroscopy, up to 10 5 ‐fold sensitivity enhancement through signal amplification by reversible exchange (SABRE) was enabled, subsecond temporal resolution used monitor an reaction that resulted in the buildup decay of hyperpolarized species after parahydrogen bubbling. We demonstrated high‐resolution low‐field proton imaging (MRI) pyridine a field endowed SABRE. Molecular (i.e. dilute substances rather than bulk medium)...
We demonstrate the feasibility of microscale molecular imaging using hyperpolarized proton and carbon-13 MRI contrast media low-field (47.5 mT) preclinical scale (38 mm i.d.) 2D magnetic resonance (MRI). Hyperpolarized images with 94 × μm2 spatial resolution 250 in-plane were recorded in 4–8 s (largely limited by electronics response), surpassing (i.e., pixel size) achievable micro-positron emission tomography (PET). These 13C large matrices up to 256 pixels relatively fields view 6.4 cm2....
Abstract The hydrodeoxygenation (HDO) reaction provides a promising catalytic strategy to remove oxygen in biomass‐derived bio‐oil produce renewable transportation fuels and value‐added chemicals. development of highly efficient stable HDO catalysts plays an essential role biomass valorization. Metal‐zeolite bifunctional have been well‐developed as the effective upgrading lignin‐derived phenolics due their excellent activity, selectivity, thermal hydrothermal stability. However, clarifying...
Abstract This paper presents the results of an analysis porous structure spherical activated carbons obtained from cation-exchange resin beads subjected to ion exchange prior activation. The study investigated effects type cation resin, concentration potassium cations in and temperature activation process on adsorption properties resulting carbons. numerical clustering-based method quenched solid density functional theory were used analyse Based original calculations unique analyses, complex...
Extreme events have brought horrible damage to power distribution systems and transportation systems. Generally speaking, post-disaster recovery relies on emergency resources, such as repair crews (RCs). However, due geographical interdependency, the dispatch of RCs is severely restricted by traffic conditions in To this end, article proposes a mixed-integer linear programming model synergistically Geographical interdependency modeled guarantee feasible practical routing schedules. A novel...
Ytterbium silicate (Yb 2 SiO 5 ) is a promising environmental barrier coating material for SiC‐based ceramic matrix composites. Yb powders were prepared by the sol–gel process using tetraethyl orthosilicate and ytterbium nitrate as starting materials. The gel was characterized Fourier transform infrared spectroscopy (FTIR) thermogravimetric analysis–differential scanning calorimetry (TGA–DSC). After calcining at 1200°C 1 h, obtained, which examined X‐ray diffraction, FTIR, transmission...
Carbon beads with a well-defined micropore structure and excellent CO<sub>2</sub> capture ability were obtained by carbonization of K-exchanged cation exchange resin precursors.
Cation exchange resin–ZIF-8 composite beads were prepared and used for the decontamination of water from dye medical pollutants.
The crystallisation of SSZ-24 is accelerated by using a catalytic amount SSZ-13 (CHA) seeds.
Organic structure directing agent (OSDA)- and binder-free preparation of ZSM-5@silica beads their use for aniline removal.