Resource Type

Journal Article 447

Conference Information 1

Conference Videos 1

Year

2024 1

2023 40

2022 38

2021 38

2020 39

2019 37

2018 25

2017 42

2016 26

2015 33

2014 14

2013 23

2012 11

2011 11

2010 15

2009 17

2008 9

2007 12

2006 5

2005 2

open ︾

Keywords

catalyst 11

Catalyst 5

carbon dioxide 4

China 3

1 2

C. dubia 2

Additive manufacturing 2

Adsorption 2

Algae 2

Lead 2

Phosphate removal 2

Pyrolysis 2

Salinity 2

Selective catalytic reduction 2

biodiesel 2

biomass 2

biomass gasification 2

catalysis 2

conversion 2

open ︾

Search scope:

排序： Display mode:

Controllable synthesis of a large TS-1 catalyst for clean epoxidation of a C=C double bond under mild

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 772-783 doi: 10.1007/s11705-022-2280-x

Abstract: Development of a titanium silicalite-1 (TS-1) catalyst with good crystallinity and a four-coordinateC double bonds.Furthermore, the TS-1#0.1ACh catalyst demonstrated maximum catalytic activity, good selectivity and highImportantly, the TS-1#0.1ACh catalyst was also highly versatile and effective with different unsaturatedC double bonds.

Keywords： size-controlled TS-1     crystal modifier     steam-assisted crystallization     epoxidation    

HTML PDF Collect

Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in trickle bed reactor

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1807-1817 doi: 10.1007/s11705-022-2243-2

Abstract: The Ru/C catalyst prepared by impregnation method was used for hydrogenation of 3,5-dimethylpyridine reduced Ru/C-n catalyst was higher than that of the in-situ reduced Ru/C-y catalyst.the highest 3,5-dimethylpyridine conversion was obtained for the Ru/C-i1 catalyst prepared by in-situExcessive oxidation (200 °C) resulted in a significant decrease in the Ru/RuOx ratioof the in-situ H2 reduction and moderate oxidized Ru/C-i2 catalyst, the interaction

Keywords： Ru/C catalyst     in-situ H2 reduction and moderate oxidation     in-situ reduction    

HTML PDF Collect

Monte Carlo simulation of the PEMFC catalyst layer

WANG Hongxing, CAO Pengzhen, WANG Yuxin

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 146-150 doi: 10.1007/s11705-007-0027-3

Abstract: of the polymer electrolyte membrane fuel cell (PEMFC) is greatly controlled by the structure of the catalystLow catalyst utilization is still a significant obstacle to the commercialization of the PEMFC.on the catalyst utilization and the performance of the PEMFC.The model can predict the effects of some catalyst layer components, such as Pt/C catalyst, electrolyteand gas pores, on the utilization of the catalyst and the cell performance.

Keywords： catalyst utilization     PEMFC     commercialization     Pt/C catalyst     conduction    

HTML PDF Collect

Atomistic simulations of plasma catalytic processes

Erik C. Neyts

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 145-154 doi: 10.1007/s11705-017-1674-7

Abstract: There is currently a growing interest in the realisation and optimization of hybrid plasma/catalyst systems

Keywords： atomic scale simulation     plasma-catalyst    

HTML PDF Collect

New insight into effect of potential on degradation of Fe-N-C catalyst for ORR

Yanyan GAO, Manman QI, Liang HE, Haiping CHEN, Wenzhe LUO, Ming HOU, Zhigang SHAO

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 421-430 doi: 10.1007/s11708-021-0727-2

Abstract: In recent years, Fe-N-C catalyst is particularly attractive due to its high oxygen reduction reactionHowever, the durability problems still pose challenge to the application of Fe-N-C catalyst.Although considerable work has been done to investigate the degradation mechanisms of Fe-N-C catalystIn fact, the 2e pathway in the ORR process of Fe-N-C catalyst would result in the formation of H O ,In this paper, a new insight into the effect of potential on degradation of Fe-N-C catalyst was provided

Keywords： proton exchange membrane fuel cells (PEMFCs)     oxygen reduction reaction (ORR)     Fe-N-C catalyst     potential    

HTML PDF Collect

hydrogenation of insoluble organic matter of CS/Acetone from coal over mesoporous HZSM-5 supported Ni and Ru

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1505-1513 doi: 10.1007/s11705-022-2164-0

Abstract: Naomaohu lignite as the sample under an initial H2 pressure of 5 MPa and temperature at 150 °C.According to the catalytic hydro-conversion results of the model compound, Ni−Ru/HZSM-5 exhibited thefurther heterolytically split H···H into immobile H‒ attached on the acidic centers of Ni−Ruhydro-conversion of the extraction residue from Naomaohu lignite was further examined over the optimized catalyst, Ni−Ru/HZSM-5.

Keywords： HZSM-5     Ni-based catalyst     catalytic hydrogenation     coal     model compound    

HTML PDF Collect

Kinetic model for hydroisomerization reaction of C-aromatics

XU Ouguan, SU Hongye, JIN Xiaoming, CHU Jian

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 10-16 doi: 10.1007/s11705-008-0015-2

Abstract: networks, a novel six-component hydroisomerization reaction network with a new lumped species including C-naphthenesand C-paraffins is proposed and a kinetic model for a commercial unit is also developed.An empirical catalyst deactivation function is incorporated into the model accounting for the loss inactivity because of coke formation on the catalyst surface during the long-term operation.

Keywords： ordinary differential     Runge-Kutta     catalyst deactivation     C-paraffins     optimization    

HTML PDF Collect

Biopolymer-stabilized emulsions on the basis of interactions between β -lactoglobulin and ι -carrageenan

Qiaomei RU, Younghee CHO, Qingrong HUANG,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 399-406 doi: 10.1007/s11705-009-0253-y

Abstract: -Carrageenan and -lactoglobulin (-lg) stabilized oil-in-water (O/W) emulsions, which can be used for the oral administration of bioactive but environmentally sensitive ingredients, have been successfully prepared. The effects of protein/polysaccharide ratios, total biopolymer concentration, environmental stress (thermal processing and sonication), and pH on the complex formation between -carrageenan and -lactoglobulin have been investigated. We found that -lactoglobulin and-carrageenan stabilized emulsions can be formed at pH values of 6.0, 4.0, and 3.4. However, the microstructures of emulsions stabilized by -lactoglobulin and -carrageenan was identified by optical microscopy, and it indicated that the emulsion prepared at pH 6.0 flocculated more extensively, while its hydrodynamic radius was much bigger than those prepared at pH 4.0 and 3.4. Regarding rheological properties, the emulsion of pH 6.0 showed a more solid-like behavior but with a lower viscosity than those of pH 4.0 and 3.4. The optimum concentration ranges for -lg and-carrageenan to form stable emulsions at pH 4.0 and 3.4 were 0.3wt-%―0.6wt-% and 0.4wt-%―0.7wt-%, respectively.
HTML PDF Collect

The Progress and Application of the SKI Series Catalysts for Isomerization of C8 Aromatics

Qiao Yingbin

Strategic Study of CAE 1999, Volume 1, Issue 1,   Pages 73-77

Abstract:

The innovative idea and excellent performance of the SKI series catalysts for isomerization of Ccatalyst is environmental - friendly.The thermodynamic equilibrium can be approached for the isomerization of the mixed C8 aromaticsThe selectivity for the C8 aromatics is more than 97% and the catalyst life-span is more thantechnological research was made through the substitution of the imported catalysts with the SKI series catalyst

Keywords： isomerization     catalyst     xylene    

HTML PDF Collect

Probing the catalytic activity of M-N

Fan Ge, Qingan Qiao, Xin Chen, You Wu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1206-1216 doi: 10.1007/s11705-020-2017-7

Abstract: Such activities are higher than the precious Pt catalyst.the density of states reveal that the O doping can improve the electronic structure of the original catalyst

Keywords： M-N-C catalyst     oxygen doping     oxygen reduction reaction     catalytic activity     density functional theory    

HTML PDF Collect

Genetics of ischemic and hemorrhagic stroke in Chinese population

Wei-Li ZHANG MD, PhD, Ru-Tai HUI MD, PhD,

Frontiers of Medicine 2010, Volume 4, Issue 1,   Pages 21-28 doi: 10.1007/s11684-010-0013-x

Abstract: Stroke is a major cause of adult death and disability worldwide. Epidemiological and animal studies have provided strong evidence that the pathogenesis of stroke is multi-factorial and induced by a combination of environmental and genetic risk factors, but the identification of individual causative variants remains little known. Genetic influences are likely to be polygenic with small effect sizes, and stroke itself consists of a number of different subtypes which may each have different genetic profiles. In addition, various ethnic populations may have different stroke risk, such as Asian race. The reasons for high risk of stroke among the Chinese, especially hemorrhagic stroke, remain unknown. Most human studies have taken a candidate gene approach using case-control methodology. To be reliably detected, small relative risks require large sample sizes, probably 1000 patients or more. Genome-wide association (GWA) study is an unbiased and comprehensive approach to identify common risk alleles for complex diseases. Recently, a multistage GWA study has identified three loci on chromosomes 2q, 8q and 9p to be associated with intracranial aneurysm in European and Japanese populations. Another GWA finding is the identification of risk variants for cardioembolic stroke on chromosome 4q25 in European populations. In this review, we mainly focus on the results from case-control association studies on genetic factors that play a role in the risk of ischemic and hemorrhagic stroke in Chinese population. The combined effects of multiple susceptibility genes for stroke risk are also summarized.

Keywords： genetics     ischemic stroke     hemorrhagic stroke     association study    

HTML PDF Collect

Catalytic activity of cerium-doped Ru/AlO during ozonation of dimethyl phthalate

ZHOU Yunrui, ZHU Wanpeng, CHEN Xun

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 354-357 doi: 10.1007/s11783-008-0059-z

Abstract: influencing the mineralization of dimethyl phthalate (DMP) during catalytic ozonation with a cerium-doped Ru/AlO catalyst were studied.The total organic carbon (TOC) removal over the doped catalyst at 100 min reached 75.1%, 61.3% usingRu/AlO catalyst and only 14.0% using ozone alone.contribution of heterogeneous catalytic ozonation was about 50%, which showed the obvious effect of Ru–Ce

Keywords： Ru–Ce/AlO     dimethyl phthalate     mineralization     comparison experiment     catalytic ozonation    

HTML PDF Collect

Chemical poison and regeneration of SCR catalysts for NOx removal from stationary sources

Junhua LI,Yue PENG,Huazhen CHANG,Xiang LI,John C. CRITTENDEN,Jiming HAO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 413-427 doi: 10.1007/s11783-016-0832-3

Abstract: Some of elements in the fly ash deactivate the catalyst due to strong chemisorptions on the active sites

Keywords： flue gas     DeNOx     SCR catalyst     poison and regeneration    

HTML PDF Collect

Research on port ecological suitability evaluation index system and evaluation model

Yaofeng XIE,Xia LV,Ru LIU,Liuyan MAO,Xiaoxi LIU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1,   Pages 65-70 doi: 10.1007/s11709-014-0258-6

Abstract: Along with the rapid development of port building, the negative impacts of port’s construction and operation on the coastline ecosystem are also increasingly strong. Therefore, it’s urgent to establish a scientific and complete system of port ecological suitability evaluation. This paper pointed out the characteristics of port ecological effects and the principles of selecting evaluation index, and used the “pressure-state-response (PSR)” model to analysis the various pressures on the environment caused by port construction and operation, and the system’s response. On this basis, we constructed the port ecological suitability evaluation index. This model used the combination of qualitative and quantitative analytic hierarchy process, to meet the multi-level, multi-objective characteristics of evaluation index system. The evaluation index system and evaluation model can be used to analysis the ecological suitability of port projects comprehensively and have some guiding significance to the port ecological suitability evaluation.

Keywords： port     ecological suitability     press-state-response (PSR) model     evaluation index system    

HTML PDF Collect

A facile synthesis of high activity cube-like Pt/carbon composites for fuel cell application

Reza B. MOGHADDAM, Samaneh SHAHGALDI, Xianguo LI

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 245-253 doi: 10.1007/s11708-017-0492-4

Abstract: High activity catalyst with simple low-cost synthesis is essential for fuel cell commercialization.The Pt grow with Vulcan XC-72 or Ketjen black, respectively, and then treated for 5.5 h at 185ºC (i.eOptimization of the Pt /K composites leads to Pt /K that has been treated for 10 h at 185ºC.Furthermore, Pt /K is compared with two commercial Pt/C catalysts, Tanaka Kikinzoku Kogyo (TKK), andJohnson Matthey (JM)Pt/C catalysts.

Keywords： synthesis     cube-like Pt     Pt/C composite     catalyst     impedance    

HTML PDF Collect

Title Author Date Type Operation

Controllable synthesis of a large TS-1 catalyst for clean epoxidation of a C=C double bond under mild

Journal Article

Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in trickle bed reactor

Journal Article

Monte Carlo simulation of the PEMFC catalyst layer

WANG Hongxing, CAO Pengzhen, WANG Yuxin

Journal Article

Atomistic simulations of plasma catalytic processes

Erik C. Neyts

Journal Article

New insight into effect of potential on degradation of Fe-N-C catalyst for ORR

Yanyan GAO, Manman QI, Liang HE, Haiping CHEN, Wenzhe LUO, Ming HOU, Zhigang SHAO

Journal Article

hydrogenation of insoluble organic matter of CS/Acetone from coal over mesoporous HZSM-5 supported Ni and Ru

Journal Article

Kinetic model for hydroisomerization reaction of C-aromatics

XU Ouguan, SU Hongye, JIN Xiaoming, CHU Jian

Journal Article

Biopolymer-stabilized emulsions on the basis of interactions between β -lactoglobulin and ι -carrageenan

Qiaomei RU, Younghee CHO, Qingrong HUANG,

Journal Article

The Progress and Application of the SKI Series Catalysts for Isomerization of C8 Aromatics

Qiao Yingbin

Journal Article

Probing the catalytic activity of M-N

Fan Ge, Qingan Qiao, Xin Chen, You Wu

Journal Article

Genetics of ischemic and hemorrhagic stroke in Chinese population

Wei-Li ZHANG MD, PhD, Ru-Tai HUI MD, PhD,

Journal Article

Catalytic activity of cerium-doped Ru/AlO during ozonation of dimethyl phthalate

ZHOU Yunrui, ZHU Wanpeng, CHEN Xun

Journal Article

Chemical poison and regeneration of SCR catalysts for NOx removal from stationary sources

Junhua LI,Yue PENG,Huazhen CHANG,Xiang LI,John C. CRITTENDEN,Jiming HAO

Journal Article

Research on port ecological suitability evaluation index system and evaluation model

Yaofeng XIE,Xia LV,Ru LIU,Liuyan MAO,Xiaoxi LIU

Journal Article

A facile synthesis of high activity cube-like Pt/carbon composites for fuel cell application

Reza B. MOGHADDAM, Samaneh SHAHGALDI, Xianguo LI

Journal Article