A5037117751- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Electrocatalysts for Energy Conversion
- Electrochemical Analysis and Applications
- Catalysis for Biomass Conversion
- Electrochemical sensors and biosensors
- Nanomaterials for catalytic reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Luminescence Properties of Advanced Materials
- Inorganic Fluorides and Related Compounds
- Advanced Photocatalysis Techniques
- Chemical Synthesis and Characterization
- Luminescence and Fluorescent Materials
- Chemical Synthesis and Reactions
- Catalysis and Hydrodesulfurization Studies
- Fuel Cells and Related Materials
- Ferroelectric and Piezoelectric Materials
- Advanced Battery Materials and Technologies
- Polyoxometalates: Synthesis and Applications
- Advanced ceramic materials synthesis
- nanoparticles nucleation surface interactions
- Molecular Sensors and Ion Detection
- Graphene research and applications
China Academy of Engineering Physics
2014-2024
East China Normal University
2024
Texas A&M University
2022-2023
Southeast University
2023
Liaoning Normal University
2018-2022
University of Toronto
2016-2021
Shanghai Institute of Organic Chemistry
2021
Nanchang University
2020
National Sun Yat-sen University
2016-2017
Shandong Jianzhu University
2017
The interfacial interaction between active species and supports is of significance for the catalytic performance heterogeneous catalysts. Accordingly, N-doped mesoporous carbon (NMC) was employed to support cobalt nanoparticles insight into nature reactivity Fischer–Tropsch synthesis (FTS). Through a series characterization techniques, it found that nitrogen incorporated carbonaceous framework, especially sp2-type nitrogen, eventually functions as sites nucleation growth species. Owing...
Abstract Nitrogen‐doped ordered mesoporous carbons (OMCs) were prepared by using a post‐synthetic method with cyanamide as nitrogen source; they used supports for the fabrication of cobalt‐based Fischer–Tropsch synthesis (FTS) catalysts. The obtained composites well characterised physisorption, Raman spectroscopy, high‐angle annular dark‐field scanning transmission electron microscopy, hydrogen chemisorption, X‐photoelectron thermogravimetry–MS, and in situ XRD to investigate effects on...
Abstract The connection of active site structures and their catalytic chemistry during butanal deoxygenation on polyoxometalate clusters with varying H + densities identity central atoms [H x Na 4− SiW 12 O 40 ( =0–4) y 3− PW =0–3)] was established rate assessment, IR spectroscopic, chemical titration methods. Butanal adsorbs the or ions forms RC=O⋅⋅⋅H RC=O⋅⋅⋅Na complexes at 348 K. A portion adsorbed butanals sites converts to surface acetates through reactions vicinal framework oxygen...
In contrast with unactivated alkenes, the corresponding hydrotrifluoromethylation of styrene has remained challenging due to strong propensity for oligomerization and polymerization. On basis our newly developed trifluoromethylation reagent, TFSP, herein we present a general method under photoredox catalysis. The substrate scope was further extended acrylates, acrylamides, vinyl-heteroatom-substituted alkenes. tunability this showcased via relevant deprotonative...
The objective of this paper is to apply the combined experimental and theoretical method investigate various behaviors gas bubbles in an acoustic field. In experiments, high-speed video ultrasonic processor are used capture transient evolution bubble patterns, as well velocity profiles. analysis, theories primary secondary Bjerknes forces buoyancy force introduced accurately demonstrate variations volume motion. Results presented for with radius 1.4mm under field a frequency 18kHz, three...
Abstract Poly(vinylideneflouride‐hexafluoropropylene) (PVDF‐HFP) copolymer films were simultaneously stretched and static electric poled (SSSEP) in seriate mode. The experimental results exhibited that SSSEP greatly enhanced the piezoelectric properties of PVDF‐HFP slightly increased dielectric films. maximum coefficient d 33 24 pC/N higher than reported was obtained these under optimum condition. Based on wide angle X‐ray diffraction results, showed more organized crystalline structure only...
Lanthanum oxide used as a promoter or support for nickel-based catalysts can effectively enhance the CO2 methanation reaction. However, intrinsic activity and reaction mechanism remain unclear. In this work, we found that in reaction, active phase of lanthanum is La2O2CO3 transformed by between La2O3 CO2. After induction period, Ni/La2O3 show performance almost identical to Ni/La2O2CO3, with superior compared those Ni/Al2O3 Ni/SiO2 catalysts. Furthermore, negligible changes during an 80 h...
α-Halogenated geminal bis(boronates) are emerging as multifunctional building blocks for organic synthesis. Currently, their synthetic utilization is still restricted due to a lack of efficient preparation methods. Herein, we report direct, modular synthesis gem-iododiborylalkanes using alkyl halides and lithiated chlorodiborylmethane reagent. Compared with previously reported methods, this protocol features assembly, high efficiency, good tolerance various functional groups.
Ordered mesoporous carbons (OMCs) were employed to support cobalt species for insight into the autoreduction behaviour of oxide on carbon substrates and their catalytic performance during Fischer–Tropsch synthesis (FTS). The as-synthesized samples subjected characterization N2-physisorption, XPS, in situ XRD, TPR, TG-MS, HAADF-STEM H2-chemisorption. results show that oxidizing pretreatment OMC substantially improves dispersion species. Consequently, more uniform particles are observed...
Abstract The hexagonal‐phase NaYF 4 :Yb 3+ , Er hollow nanospheres (HNS) have been successfully prepared for the first time by means of a hydrothermal route with aid polyethylenimine (PEI) as surfactant. nitrogen adsorption/desorption isotherms demonstrated porous nature HNS. formation mechanism was explored based on effects reaction parameters. solid spheres underwent dissolution‐recrystallisation transformation and hollowing process when prolonged. localised Ostwald ripening proposed to...
Abstract Monodisperse, uniform, encapsulated mesoporous silicananocomposites with a LaF 3 :Yb,Er core and silica shell structure, which still exhibit green upconversion photoluminescence (PL) under 980 nm irradiation, have been successfully synthesized investigated as potential drug delivery systems by using ibuprofen (IBU) model drug.
Oxygen vacancies formed at the metal–oxide interfaces of M/La 2 O 3 act as receiving sites for hydrogen atoms spilled over from metal surfaces. The uptake H forms lanthanum oxyhydride-like species interfaces.
Infrared spectra have been widely used to study CO adsorption and reaction on Au surfaces reveal the underlying mechanism. However, results interpretation of IR remain highly controversial, which prevents reliable conclusions from earlier studies. Herein, we studied thin films nanoparticles by in situ polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS) with purified CO. Only a single feature above 2100 cm–1 is observed pressure varying 1 × 10–6 100 Torr. This...
The conversion of catalytic oxidation alcohols to aldehydes and ketones is more than 99% using a nitroxide polymer brush grafted on superparamagnetic nanoparticles as catalyst. catalyst can be easily recovered reused.