Zhongyue Zhou

Zhongyue Zhou
Shanghai Jiao Tong University | SJTU · School of Mechanical Engineering

Doctor of Engineering

About

70
Publications
10,016
Reads
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2,255
Citations
Introduction
Zhongyue Zhou currently works at the School of Mechanical Engineering, Shanghai Jiao Tong University. His research interests include online photoionization mass spectrometry and thermochemical conversion of solid fuels.
Additional affiliations
January 2020 - present
Shanghai Jiao Tong University
Position
  • Professor (Associate)
September 2015 - December 2019
Shanghai Jiao Tong University
Position
  • Professor (Assistant)
July 2012 - July 2015
University of Science and Technology of China
Position
  • PostDoc Position
Education
September 2007 - May 2012
September 2003 - June 2007
China University of Petroleum
Field of study
  • Applied Physics

Publications

Publications (70)
Article
Biomass pyrolysis has arisen great attention for producing clean fuels, valuable chemicals, and advanced materials. Knowledge on the properties of both final products and intermediates is crucial to establish better kinetic models for the prediction of products distribution or to control the pyrolysis processes. However, the current mechanism of bi...
Article
Pyrolysis is a feasible way to convert lignocellulosic biomass into renewable fuels and chemicals. Comprehensive elucidation of chemical compositions of both intermediates and final products of biomass pyrolysis at the molecular level is essential to understanding the reaction mechanism, which may help to improve this sustainable process. Because b...
Article
Full-text available
Lignin valorization via thermochemical approaches has the potential to produce renewable fuels and value-added chemicals, which are of great significance to the sustainable development of human beings. During the thermochemical depolymerization which involves acid-catalyzed, alkali-catalyzed, oxidative, reductive, pyrolytic, and other reactions, th...
Article
The formation and decay of initial intermediates of energetic materials (EMs) such as polynitropolyaza-caged CL-20 are responsible for the initiation of decomposition reaction network, which acts as a key mechanistic step during combustion and detonation. However, direct in situ measurements of these species have not been reported previously, and t...
Article
Depolymerization of lignin can yield phenolic monomeric platform molecules, but depolymerization and repolymerization are proposed as concurrent processes, which greatly limit the yield of monomeric products. Molecular level characterization of the depolymerization intermediates is essential to be able to rationally tailor effective methodology for...
Article
The oxidation of CH 4 /C 2 H 4 /NH 3 /NO/NO 2 gas mixtures was studied aiming to explore the homogenous chemistry of exhaust gas from lean-operated natural gas engine. With respect to this goal, experiments were carried out with a laminar flow reactor under engine-relevant (diluted and lean) conditions over the temperature range of 600–1400 K. Four...
Article
Soft photoionization molecular-beam mass spectrometry (PI-MBMS) using synchrotron vacuum ultraviolet (SVUV) light has been significantly developed and applied in various fields in recent decades. Particularly, the tunability of SVUV light enables two-dimensional measurements, i.e. mass spectrum and photoionization efficiency spectrum measurements,...
Article
Wet torrefaction (WT) is promising to convert moist biomass into hydrophobic fuel with higher heating value and energy density. The current study investigated the comprehensive utilization of biomass with combined wet torrefaction and pyrolysis. Characterizations of both torrefied solid and liquid were achieved to understand the evolution of physic...
Article
N-guanylurea-dinitramide (GUDN) has received widespread attention due to its high energy and low sensitivity. Research on thermal decomposition behavior of energetic materials plays an important role in their practical application. However, determining transition state products from an experimental technology remains a question to be solved. Herein...
Article
Due to rapid deactivation of catalysts, the effective conversion of biomass with oxygen-rich and hydrogen-deficient characteristics to transportation fuels and high-valued chemicals via catalytic pyrolysis remains a challenge for commercialization. Hydrogen-rich plastic is used as feedstock co-fed with biomass to improve the catalytic pyrolysis pro...
Article
5-Nitro-2,4-dihydro-3H-1,2,4-triazol-3-one (NTO) is a representative and insensitive energetic compound mainly used as a component of low vulnerable ammunition, but its decomposition process is not clear up to date. Herein, online photoionization mass spectrometry combined with theoretical simulations was employed to shed light on the thermal decom...
Article
This work reports an experimental and kinetic modeling investigation on laminar premixed flame of p-xylene at 0.04 atm and equivalence ratios of 0.75, 1.0, and 1.79. Intermediates such as the p-xylyl radical, p-xylylene, and styrene, as well as polycyclic aromatic hydrocarbons (PAHs), were detected by using synchrotron vacuum ultraviolet photoioniz...
Article
Recent literature kinetic studies revealed the importance of new mechanisms for polycyclic aromatic hydrocarbon (PAH) and soot inception beyond hydrogen–abstraction–acetylene–addition (HACA) and hydrogen–abstraction–vinylacetylene–addition (HAVA) mechanisms in the combustion of ethylene and other hydrocarbons. Co-flow diffusion flame is a canonical...
Article
Naturally occurring AAEMs in biomass exhibit detrimental effects to biomass pyrolysis as producing less oil with lower quality. Acid pretreatments are cheap and effective methods for mitigating AAEMs effect, thus improving the pyrolysis performance. In the current study, a combination of different experiment techniques and theoretical kinetic analy...
Article
Phenolic pool is considered to be an important intermediate during catalytic conversion of biomass. However, no direct evidence has been reported on its full picture in molecular level, due to the huge challenges in probing the reactive and low volatile phenolic oligomers with the state‐of‐the‐art technologies. Herein, we reported online detection...
Article
The first real‐time experimental observation and speciation of a phenolic pool is reported. The phenolic pool, which features equidistant grouping‐distribution patterns, originates from the repolymerization of monomeric units and acts as a key mechanistic step for both valuable aromatic products and undesired coke. Abstract The phenolic pool is co...
Article
Thermal decomposition of 1-hexene at temperatures 295-1410 K was conducted using a flash pyrolysis micro-reactor coupled to laser-based vacuum ultraviolet photoionization time-of-flight mass spectrometer (VUV-PI-TOFMS). The decomposition mechanism of 1-hexene was developed with the help of theoretical calculation performed at the MRCI/cc-pvtz//CASS...
Article
The hydrodeoxygenation (HDO) of bio-oil has attracted considerable attention but is extremely challenging due to low yield and selectivity. In this study, we report the gas-phase hydro-deoxygenation of guaiacol, a typical model compound of lignin-derived bio-oil, into aromatic hydrocarbons with benzene yield up to 85.1% over a nitrogen-doped carbon...
Article
As one of the major components of lignocellulosic biomass, the current understanding on pyrolysis mechanism of hemicellulose is relatively limited compared to that of cellulose due to its random and complicated structure. Here, we reported an in-depth study on hemicellulose pyrolysis by combining advanced experimental techniques and quantum chemica...
Article
Full-text available
In this work, the primary thermal decomposition mechanism of 1,1-diamino-2,2-dinitroethylene (FOX-7) was studied by ReaxFF molecular dynamics simulations and online photoionization mass spectrometry.
Article
Full-text available
Formaldehyde (HCHO) has been confirmed as an active intermediate in methanol‐to‐hydrocarbons (MTH) reaction, which is critical for interpreting the mechanisms of coke formation. In this work, HCHO was unambiguously detected and quantified for the first time during the MTH process over HSAPO‐34 and HZSM‐5 by in situ synchrotron radiation photoioniza...
Article
Full-text available
Formaldehyde (HCHO) has been confirmed as an active intermediate in methanol‐to‐hydrocarbons (MTH) reaction, which is critical for interpreting the mechanisms of coke formation. In this work, HCHO was unambiguously detected and quantified for the first time during the MTH process over HSAPO‐34 and HZSM‐5 by in situ synchrotron radiation photoioniza...
Article
Fast pyrolysis, hydropyrolysis and catalytic hydropyrolysis are three important methods to produce bio-oil from biomass and are of great interest to researchers. In this research, the comprehensive study of pyrolysis, hydropyrolysis and catalytic hydropyrolysis of poplar sawdust and rice husk was investigated in a modified laboratory Py-GC/MS micro...
Article
Full-text available
Natural gas vehicles, as well as some other engines in automobiles, emit methane, which is a potent greenhouse gas. Developing advanced catalysts that can oxidize methane with good and stable activity is required for new emission standards of automobiles. We report here a N-doped carbon–silica composite that can well disperse Pd nanoparticles and p...
Article
Identification of pyrolysis intermediates and products is of great significance to better understanding of a pyrolysis process and therefore its further upgrade to practical fuels. We hereby report a real-time analysis of pyrolysis volatiles of biomass in a micro fixed-bed reactor via an on-line near-atmospheric pressure photoionization Orbitrap ma...
Article
Co-pyrolysis behavior of kraft lignin (KL) and lignite (LI) was studied by thermogravimetry (TG) combined with on-line photoionization time-of-flight mass spectrometry (PI-TOF-MS) to get insights into the synergetic effect on the total yield and detailed composition of volatile. Significant synergetic effect was observed between KL and LI during co...
Article
The hydrogen-deficient and oxygen-rich nature of lignocellulosic biomass prohibits effective conversions of biomass to fuels and chemicals via catalytic pyrolysis due to significant coking of the catalysts. Co-feeding of biomass feedstock with hydrogen-rich and oxygen-deficient thermoplastics could improve the process. Herein, thermal and catalytic...
Article
Understanding the pyrolysis mechanism of lignin is of great importance for improvement of thermochemical conversion processes and upgrading of biofuels. In this work, the pyrolysis of lignin model compound, guaiacol, at atmospheric pressure has been studied in a flow reactor by synchrotron vacuum ultraviolet photoionization mass spectrometry. Over...
Article
Acetaldehyde oxidation was investigated in a jet-stirred reactor at temperatures from 460 to 900 K, equivalence ratios from 0.5 to 4.0 and pressures of 710–720 Torr. Reactive intermediates under low-temperature conditions, such as methylperoxy, methylhydroperoxide and ketohydroperoxide were detected using synchrotron vacuum ultraviolet photoionizat...
Article
In this work, oxidation chemistry of methanol was investigated in laminar premixed flames. Laminar burning velocities of methanol/air mixtures at 423 K and 1–10 atm were measured in a spherical combustion vessel, extending the range of equivalence ratio up to 2.1. A stoichiometric premixed flat flame of methanol/O2/Ar at 0.04 atm was also conducted...
Conference Paper
An undulator-based VUV beamline BL03U is constructed at the National Synchrotron Radiation Laboratory. Optical design and performance test results are presented in this paper. The monochromator is a Czerny–Turner configuration with a toroidal collimating mirror, two plane gratings, and a toroidal focusing mirror. Plane gratings with line densities...
Article
Extractive atmospheric pressure photoionization (EAPPI) mass spectrometry was designed for rapid qualitative and quantitative analysis of chemicals in complex matrices. In this method, an ultrasonic nebulization system was applied to sample extraction, nebulization, and vaporization. Mixed with a gaseous dopant, vaporized analytes were ionized thro...
Article
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 beamline is connected to the newly upgraded Hefei Light Source (HLS II), and could deliver photons in the 5–21 eV range, with a photon flux of 10 1...
Article
Laminar premixed flames of decalin with equivalence ratios of 0.75, 1.0 and 1.8 were studied using synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS). Dozens of flame species were identified and their mole fraction profiles were evaluated, including a series of free radicals. A detailed kinetic model of decalin combustion...
Article
In this work, laminar coflow diffusion flames fueled with methane/iso-butanol were investigated with synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS). Mole fractions of C2–C16 flame species, including small hydrocarbons, oxygenates and aromatics were measured along the flame centerline. The enhancement in the formation o...
Article
As pyrolysis is the initial step involved in thermochemical processes of biomass, understanding of the pyrolytic behavior of biomass is crucial to biomass thermochemical conversions. This work presents a new facility for studying the pyrolysis behavior of solid fuels. The experimental setup contains a thermogravimetry system connected with a home-m...
Article
Laminar premixed n-butylbenzene/O2/Ar flames are studied at low pressure (4.0 kPa) and three equivalence ratios (ϕ = 0.75, 1.0, and 1.79) using synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS). A detailed n-butylbenzene mechanism is developed to describe the decomposition of n-butylbenzene in flames as well as the growth...
Article
The pyrolysis of decalin was studied in a flow reactor using synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS) at the pressures of 4, 20, and 101kPa and the temperatures from 920 to 1500K. Dozens of pyrolysis species were identified and their mole fraction profiles were measured as a function of temperature, particularly...
Article
Full-text available
Although considerable progress has been made in direct synthesis gas (syngas) conversion to light olefins (C2=–C4=) via Fischer-Tropsch synthesis (FTS), the wide product distribution remains a challenge, with a theoretical limit of only 58% for C2–C4 hydrocarbons. We present a process that reaches C2=–C4= selectivity as high as 80% and C2–C4 94% at...
Article
The demand of modern society for energy keeps increasing due to the rapid growth of population and urbanization. Pyrolysis of solid fuels including biomass, coal and polymer waste has recently received special attention as it can provide extra sources of fuels. In the past few years, a variety of analytical techniques have been used to detect the p...
Conference Paper
This presentation reports recent advances of synchrotron-based vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS) in various combustion-related topics including pyrolysis, oxidation, flame, and catalysis reaction etc.
Article
Pyrolysis is considered to be a simple and effective method for the clean conversion of coal. In this work, catalytic pyrolysis of bituminous coal over two commercial available zeolites, i.e., HZSM-5 and HUSY, was investigated with newly constructed pyrolysis photoionization time-of-flight mass spectrometry (Py-PI-TOFMS) in real time. The fragment-...
Article
The production of hydrocarbons through the pyrolysis of polyolefins is a promising way of 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 of polypropylene (PP) in a tubular furnace. SPI produces few or no fragments of molecular ion...
Article
The pyrolysis processes of cotton and flax fabrics, which are typical kinds of biomass solid waste, were studied under low pressure by tunable synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS). The thermogravimetric analysis (TGA) results show that flax fabric has larger proportions of hemicellulose and lignin components...
Article
The time-of-flight (TOF) mass spectrometry is one of the most widely used techniques to get information about the composition and structure of compounds. The time digitizer, based on time-to-digital conversion, is one of the important parts in modern TOF mass spectrometry, which is often implemented with analog circuitry or application-specific-int...
Article
Full-text available
Pyrolysis is one of the most important methods to convert biomass into biofuel, which is a potential substitute for fossil fuel. The pyrolysis process of poplar biomass, a potential biofuel feedstock, has been studied with tunable synchrotron vacuum ultraviolet (SVUV) photoionization mass spectrometry (PIMS). The mass spectra at different photon en...
Article
Full-text available
We report a home-made combustion apparatus for study of pressure-dependent laminar premixed flames with tunable vacuum ultraviolet photoionization mass spectrometry. The instrument consists of a flame chamber, a photoionization chamber with a single-stage sampling system, an ion transfer∕storage system, and an orthogonal-acceleration reflectron tim...
Article
The pyrolysis of rice husk and rice straw were studied by tunable synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV PIMS). Main pyrolysis products of rice husk and rice straw were identified with mass spectra obtained at different photon energies. The work investigated the relation between pyrolysis products and reaction temper...
Article
The pyrolysis process of pine wood, a promising biofuel feedstock, has been studied with tunable synchrotron vacuum ultraviolet photoionization mass spectrometry. The mass spectra at different photon energies and temperatures as well as time-dependent profiles of several selected species during pine wood pyrolysis process were measured. Based on th...
Article
Full-text available
In this work, we coupled synchrotron vacuum ultraviolet photoionization (SVUV PI) method with the laser-induced acoustic desorption (LIAD) technique for mass spectrometric analysis. The LIAD technique is a "soft" desorption method, which could avoid the degradation of analytes during desorption process. Meanwhile, SVUV PI is an efficient "soft" ion...
Article
The formation of hydroperoxides postulated in all the kinetic models for the low temperature oxidation of alkanes have been experimentally proved thanks to a new type of apparatus associating a quartz jet-stirred reactor through a molecular-beam sampling system to a reflectron time-of-flight mass spectrometer combined with tunable synchrotron vacuu...
Article
In recent years, increasing attention has been paid to “soft” photoionization (PI), which will potentially become a standard, universal ionization method. Tunable synchrotron vacuum ultraviolet (SVUV) light, a quasi-continuous light with good energy resolution and high photon flux, has proved an ideal source for “soft” PI in various research fields...
Article
Full-text available
Cyclic dipeptides, due to their chemical properties and various bioactivities, are very attractive for medicinal chemistry. Fragmentations of three simple cyclic dipeptides including cyclo(Gly-Gly), cyclo(Ala-Ala) and cyclo(Gly-Val) in the gas-phase are determined with synchrotron vacuum ultraviolet (VUV) photoionization mass spectrometry (VUV PIMS...
Article
The absolute photoionization cross-sections of 24 nitrogenous compounds were measured in the photon energy range from their respective ionization thresholds to 11.5eV, including n-propylamine, iso-propylamine, n-butylamine, 2-butylamine, iso-butylamine, tert-butylamine, diethylamine, dibutylamine, triethylamine, aniline, benzylamine, n-methylanilin...
Article
An experimental study of n-heptane pyrolysis (2.0% n-heptane in argon) has been performed at low pressure (400 Pa) within the temperature range from 780 to 1780 K. The pyrolysis products were detected by using synchrotron vacuum ultraviolet photoionization mass spectrometry (SVUV-PIMS). Photoionization mass spectra and photoionization efficiency sp...
Article
Full-text available
The products obtained from the low-temperature oxidation of n-butane in a jet-stirred reactor (JSR) have been analysed using two methods: gas chromatography analysis of the outlet gas and reflectron time-of-flight mass spectrometry. The mass spectrometer was combined with tunable synchrotron vacuum ultraviolet photoionization and coupled with a JSR...
Article
Capacitive radio frequency (RF) discharge of c-C4F8 (octafluorocyclobutane) has been studied with synchrotron vacuum ultraviolet (SVUV) photoionization mass spectrometry (PIMS) at 4Torr and 33.33kHz. Various free radicals and reactive intermediates have been identified through measurement of photoionization mass spectra and photoionization efficien...
Article
The near-threshold absolute photoionization cross-sections of 12 oxygenated hydrocarbons, including 1-butanol, 2-butanol, iso-butanol, tert-butanol, 1-pentanol, tert-pentanol, iso-pentanol, methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), furan, 2-methylfuran, 2,5-dimethylfuran, were measured in the photon energy range from respective...
Article
Absolute photoionization and dissociative photoionization cross-sections of eleven n-alkanes (n-pentane, n-hexane, n-heptane, n-nonane, n-decane, n-undecane, n-dodecane, n-tridecane, n-tetradecane, n-pentadecane and n-hexadecane), three cyclo-alkanes (cyclopentane, methylcyclohexane and trans-decahydronaphthalene) and iso-octane were measured for p...
Article
(Chemical equation presented) Intermediate detected: The design of internal combustion engines relies on a good understanding of the mechanism of the auto-ignition of hydrocarbons. A key assumption of this mechanism, which was commonly accepted but never proven, has now been experimentally demonstrated: the formation of ketohydroperoxides has been...
Article
The absolute photoionization cross-sections of aromatics and aromatic derivatives including toluene, ethylbenzene, n-propylbenzene, o-xylene, m-xylene, p-xylene, 1,3,5-trimethylbenzene, styrene, phenylacetylene, indene, indane, 1-methylnaphthalene, benzyl alcohol and benzaldehyde were measured at the photon energy range from ionization thresholds t...
Article
An ethylene diffusion flame has been investigated at normal pressure using synchrotron vacuum ultraviolet (VUV) photoionization and molecular-beam mass spectrometry. Most combustion intermediates and products were identified though measurements with photoionization mass spectra and photoionization efficiency spectra. By scanning the sampling positi...

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