A5025823762- Advanced Combustion Engine Technologies
- Catalytic Processes in Materials Science
- Thermochemical Biomass Conversion Processes
- Catalysis and Oxidation Reactions
- Heat transfer and supercritical fluids
- Combustion and flame dynamics
- Atmospheric chemistry and aerosols
- Advanced Chemical Physics Studies
- Zeolite Catalysis and Synthesis
- Catalysis for Biomass Conversion
- Mass Spectrometry Techniques and Applications
- Biodiesel Production and Applications
- Free Radicals and Antioxidants
- Lignin and Wood Chemistry
- Catalysis and Hydrodesulfurization Studies
- Chemical Thermodynamics and Molecular Structure
- Analytical Chemistry and Chromatography
- Plasma Applications and Diagnostics
- Atmospheric Ozone and Climate
- Advanced Chemical Sensor Technologies
- Thermal and Kinetic Analysis
- Toxic Organic Pollutants Impact
- Catalysts for Methane Reforming
- Spectroscopy and Laser Applications
- Advanced Battery Technologies Research
University of Science and Technology of China
2016-2025
National Synchrotron Radiation Laboratory
2016-2025
Collaborative Innovation Center of Chemistry for Energy Materials
2021
Hefei University
2018-2019
Shanghai Jiao Tong University
2015-2018
Collaborative Innovation Centre for Advanced Ship and Deep-Sea Exploration
2018
China Tobacco
2012
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...
Although hexagonal boron nitride (h-BN) has recently been identified as a highly efficient catalyst for the oxidative dehydrogenation of propane (ODHP) reaction, reaction mechanisms, especially regarding radical chemistry this system, remain elusive. Now, first direct experimental evidence gas-phase methyl radicals (CH3. ) in ODHP over boron-based catalysts is achieved by using online synchrotron vacuum ultraviolet photoionization mass spectroscopy (SVUV-PIMS), which uncovers existence...
A gas-phase reaction network involving reactive intermediates such as alkyl and peroxide radicals hydroperoxides have long remained a mystery in oxidative coupling of methane (OCM) dehydrogenation ethane (ODHE) reactions. Herein we report direct observations including CH2, CH3•, C2H5•, CH3OO•, C2H5OO•, CH3OOH, C2H5OOH during OCM ODHE reactions over Li/MgO catalysts with an online synchrotron VUV photoionization mass spectrometer connected to catalytic reactor adjustable distances between the...
Abstract Separators are vital parts of all lithium‐ion batteries (LIBs), and they play a critical role in their thermal safety electrochemical performance. Considering the low stability inferior electrolyte wettability commercial polyolefin membranes, this study, novel thermotolerant polyimide aerogel (PIA) separator is designed. This first report on use chemically cross‐linked PIA separators for LIBs. The outstanding porosity (78.35%) absorption (321.66%) contribute to internal resistance...
Selective hydrogenation of carbon monoxide (CO) to higher alcohols (C2+OH) is a promising non-petroleum route for producing high-value chemicals, in which precise regulations both C-O cleavage and C-C coupling are highly essential but remain great challenges. Herein, we report that selective CO C2-4OH achieved over potassium-modified edge-rich molybdenum disulfide (MoS2) catalyst, delivers high conversion 17% with superior selectivity 45.2% hydrogenated products at 240 °C 50 bar,...
Molybdenum supported on zeolites has been extensively studied as a catalyst for methane dehydroaromatization. Despite significant progress, the actual intermediates and particularly first C-C bond formation have not yet elucidated. Herein we report evolution of methyl radicals during non-oxidative activation over molybdenum single sites, which leads selectively to value-added chemicals. Operando X-ray absorption spectroscopy online synchrotron vacuum ultraviolet photoionization mass in...
Desorption electrospray ionization (DESI) mass spectrometry imaging (MSI) can simultaneously record the 2D distribution of polar biomolecules in tissue slices at ambient conditions. However, sensitivity DESI-MSI for nonpolar compounds is restricted by low efficiency and strong ion suppression. In this study, a compact postphotoionization assembly combined with DESI (DESI/PI) was developed molecules sections switching off/on portable krypton lamp. Compared DESI, higher signal intensities...
The production of hydrocarbons through the pyrolysis polyolefins is a promising way fuel recycling. In this work, online single-photon ionization time-of-flight mass spectrometry (SPI–TOFMS) was used to study both thermal and catalytic decompositions polypropylene (PP) in tubular furnace. SPI produces few or no fragments molecular ions, making identification interpretation complex products real time possible. spectra at different reaction temperatures time-evolved profiles selected species...
Abstract HCHO has been confirmed as an active intermediate in the methanol‐to‐hydrocarbon (MTH) reaction, and is critical for interpreting mechanisms of coke formation. Here, was detected quantified during MTH process over HSAPO‐34 HZSM‐5 by situ synchrotron radiation photoionization mass spectrometry. Compared with conventional methods, excellent time‐resolved profiles were obtained to study formation fate HCHO, other products induction, steady‐state deactivation periods. Similar trends...