A5076375120- Advanced Combustion Engine Technologies
- Combustion and flame dynamics
- Catalytic Processes in Materials Science
- Atmospheric chemistry and aerosols
- Advanced Chemical Physics Studies
- Catalysis and Oxidation Reactions
- Mass Spectrometry Techniques and Applications
- Thermochemical Biomass Conversion Processes
- Heat transfer and supercritical fluids
- Spectroscopy and Laser Applications
- Lignin and Wood Chemistry
- Photochemistry and Electron Transfer Studies
- Analytical Chemistry and Chromatography
- RNA modifications and cancer
- Biodiesel Production and Applications
- Fire dynamics and safety research
- Free Radicals and Antioxidants
- Zeolite Catalysis and Synthesis
- Fluid Dynamics and Turbulent Flows
- Atmospheric Ozone and Climate
- Combustion and Detonation Processes
- Biochemical and biochemical processes
- Thermal and Kinetic Analysis
- Perovskite Materials and Applications
- Glass properties and applications
Shanghai Jiao Tong University
2016-2025
Chongqing University of Posts and Telecommunications
2020-2025
Wuhan Institute of Technology
2025
Air Force Medical University
2025
Northeast Forestry University
2023-2025
Qingdao Municipal Center for Disease Control and Prevention
2022-2024
Beijing Forestry University
2024
University of Jinan
2024
George Institute for Global Health
2024
Imperial College London
2024
Although considerable progress has been made in direct synthesis gas (syngas) conversion to light olefins (C2(=)-C4(=)) via Fischer-Tropsch (FTS), the wide product distribution remains a challenge, with theoretical limit of only 58% for C2-C4 hydrocarbons. We present process that reaches C2(=)-C4(=) selectivity as high 80% and 94% at carbon monoxide (CO) 17%. This is enabled by bifunctional catalyst affording two types active sites complementary properties. The partially reduced oxide...
An undulator-based vacuum ultraviolet (VUV) beamline (BL03U), intended for combustion chemistry studies, has been constructed at the National Synchrotron Radiation Laboratory (NSRL) in Hefei, China. The is connected to newly upgraded Hefei Light Source (HLS II), and could deliver photons 5–21 eV range, with a photon flux of 10 13 s −1 when beam current 300 mA. monochromator equipped two gratings (200 lines mm 400 ) its resolving power 3900 7.3 200 grating 4200 14.6 grating. serves three...
Photocyclized intermediate formation and quasi CC twisting are the dominant processes behind AIE.
Models for chemical mechanisms of hydrocarbon oxidation rely on spectrometric identification molecular structures in flames. Carbonyl (keto) compounds are well-established combustion intermediates. However, their less-stable enol tautomers, bearing OH groups adjacent to carbon-carbon double bonds, not included standard models. We observed substantial quantities two-, three-, and four-carbon enols by photoionization mass spectrometry flames burning representative from modern fuel blends....
We report the first use of synchrotron radiation, continuously tunable from 8 to 15 eV, for flame-sampling photoionization mass spectrometry (PIMS). Synchrotron radiation offers important advantages over pulsed vacuum ultraviolet lasers PIMS; these include superior signal-to-noise, soft ionization, and access photon energies outside limited tuning ranges current VUV laser sources. Near-threshold efficiency measurements were used determine absolute concentrations allene propyne isomers C3H4...
Combustion is one of the earliest developed human technologies and remains our primary source energy, yet it embodies a complex suite physical chemical processes that are inadequately understood. chemistry involves both thermodynamics kinetics, experimental advances mostly depend on development combustion diagnostics, which effectively serve as foundation theoretical progress. The major objective diagnostics to provide comprehensive product identification concentration information flame...
A flame-sampling molecular-beam photoionization mass spectrometer, recently designed and constructed for use with a synchrotron-radiation light source, provides significant improvements over previous spectrometers that have employed either electron-impact ionization or vacuum ultraviolet laser photoionization. These include superior signal-to-noise ratio, soft ionization, photon energies easily precisely tunable [E∕ΔE(FWHM)≈250–400] the 7.8–17-eV range required quantitative measurements of...
A low-pressure premixed toluene/O2/Ar flame with the equivalence ratio of 1.90 was investigated using tunable synchrotron vacuum ultraviolet (VUV) photoionization mass spectrometry. Combustion intermediates up to C19H12 were identified by measurements spectrum and efficiency spectrum. Mole fraction profiles species evaluated from scan burner position at photon energies near ionization thresholds. Furthermore, temperature recorded a Pt/Pt-13%Rh thermocouple. The comprehensive experimental...
Intermediate detected: The design of internal combustion engines relies on a good understanding the mechanism auto-ignition hydrocarbons. A key assumption this mechanism, which was commonly accepted but never proven, has now been experimentally demonstrated: formation ketohydroperoxides observed under conditions close to those actually before auto-ignition.
Polycyclic aromatic hydrocarbons (PAHs) play important roles in the formation of soot from combustion. The PAHs are formed incomplete combustion, and thought to pose a particularly great risk health. Isomeric identification is big challenge. In this article, we describe an apparatus that combines tunable synchrotron vacuum ultraviolet (VUV) photoionization with molecular-beam mass spectrometry for identifying isomers can be distinguished measurements efficiency spectra. With its unique...