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CO₂ capture 19

PM_2.5 16

TiO₂ 14

photocatalysis 10

CO₂ 9

CO₂ emissions 7

Al₂O₃ 6

Photocatalysis 6

adsorption 5

H₂S 4

MnO₂ 4

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reactive oxygen species 4

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Effects of support acidity on the reaction mechanisms of selective catalytic reduction of NO by CH

Shicheng XU, Junhua LI, Dong YANG, Jiming HAO

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2, Pages 186-193 doi: 10.1007/s11783-009-0016-5

Abstract: sites would not necessarily lead to better catalytic performance, however, since the active surface NO speciesthe SCR activity of solid superacid catalysts, reactions between appropriate couples of active NO species

Keywords： nsted acid sites NOysub> species

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Spray Preparation, Microstructure and Properties of Al2sub>O3sub>-Mxsub>O Hard -

Wang Biao,Wang Yudong,Li Huiling,Zhang Zihua

Strategic Study of CAE 2002, Volume 4, Issue 9, Pages 75-80

Abstract: carbon steel substrate, base coating of nickel-coated aluminium and intermediate coating of 50% Al2sub>O3sub> + 50% Ni were prepared by means of oxyacetylene spray, and final coating of Al2sub>O3sub> ～ Mxsub>Oysub> was prepared by means of plasma spray.of 60% (mass) sulphuric acid with 60 % concentration, and 40% (mass) phosphoric ore powder, the Al2sub>O3sub> ～ Mxsub>Oysub> coating resistance to corrosion and wear, is 7.46

Keywords： Al2sub>O3sub>-Mxsub>Oysub> coating plasma resistance to corrosion resistance

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Roles of various Ni species on TiO

Xiaoping CHEN, Jihai XIONG, Jinming SHI, Song XIA, Shuanglin GUI, Wenfeng SHANGGUAN

Frontiers in Energy 2019, Volume 13, Issue 4, Pages 684-690 doi: 10.1007/s11708-018-0585-8

Abstract: In this study, different nickel species Ni, Ni(OH) , NiO, NiO , and NiS are used to modified titaniumThe results indicate that all the nickel species can improve the photocatalytic hydrogen production activityhas more superior photocatalytic hydrogen evolution activities than those modified with other nickel species

Keywords： nickel species TiO2sub> photocatalytic hydrogen evolution

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Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acid

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4, Pages 401-407 doi: 10.1007/s11705-013-1354-1

Abstract: In this study biodiesel was produced from WFO in sub- and super-critical methanol on a zeolite Y solidThe transesterification of WFO with methanol around its critical temperature combined with a zeolite Y

Keywords： biodiesel methanol critical temperature waste frying oil zeolite Y

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Major bridge projects——a multi-disciplinary approach

OSTENFELD, Erik Y. ANDERSEN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4, Pages 479-495 doi: 10.1007/s11709-011-0137-3

Abstract: Modern bridge building is much more than concrete, steel and money. The overall socioeconomic impact, influence on people migration, traffic, use of primary materials, safety of construction impact on the environment, energy, risk scenarios, health, and most relevant now: climate and CO emissions, are among the parameters which enter into the decision process at the overall holistic conceptual level, the more detailed level of selection of bridge sites, and selection of bridge types as well as construction methods and selection of materials and products. The paper illustrates these dilemmas and illustrates by specific examples how this complicated decision process can be managed and structured in order to arrive at an overall satisfactory solution for design, construction and maintenance throughout the lifetime (life cycle) to these sometimes contradictory parameters and requirements.

Keywords： bridges materials climate risk safety environment socioeconomics traffic CO2sub> energy life cycle

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Self-sustained catalytic combustion of CO enhanced by micro fluidized bed: stability operation, fluidization state and CFD simulation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1709-x

Abstract:

● Catalytic combustion in fluidized bed realizes efficient heat and mass transfer.

Keywords： Self-sustained catalytic combustion Carbon monoxide Cu1–xsub>Cexsub>Oysub> Fluidized

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Source apportionment of PM

Wei WEN,Shuiyuan CHENG,Lei LIU,Gang WANG,Xiaoqi WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0839-9

Abstract: The hybrid approach can be used for source apportionment of secondary species.of this paper is to propose a hybrid approach for the source apportionment of primary and secondary speciesemission inventory (EI) to form the first hybrid method for the source apportionment of the primary speciesChemical Profile) approach is then proposed and used for the source apportionment of the secondary speciesThe other-source category plays a crucial role for PM , particularly for the formation of secondary species

Keywords： Secondary species Emission inventory PM2.5sub> Source apportionment

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Coupling the porous conditional moment closure with the random pore model: applications to gasification and CO

Y. KLIMENKO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1, Pages 84-93 doi: 10.1007/s11705-011-1164-2

Abstract: The sub-models that describe reactive transport processes in coal particles as well as in particles ofCO sorbent material are among the key sub-models, which provide a necessary input for an overall gasifierchanges in pore structure caused by heterogeneous reactions and thus improves the accuracy of these key sub-models

Keywords： gasification CO2sub> capture PCMC RPM

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nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The fate of nitrogen and iron species

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1366-2

Abstract:

•Bacterially-mediated coupled N and Fe processes examined in incubation experiments.

Keywords： Denitrification N2sub>O emission Fe(II) oxidation Fe/N ratio Fe minerals

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Review on design and evaluation of environmental photocatalysts

Xin Li, Jun Xie, Chuanjia Jiang, Jiaguo Yu, Pengyi Zhang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1076-1

Abstract:

The mechanism aspects, including O2sub> reduction, reactive oxidation species and key intermediates were also addressed.

Keywords： Photocatalytic degradation Environmental remediation Charge carrier dynamics Reactive oxygen species O2sub> reduction

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A multi-scale model for CO

WEI, Y. QIN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 20-25 doi: 10.1007/s11705-009-0138-0

Abstract: This paper presents a multi-scale model to simulate the multicomponent gas diffusion and flow in bulk coals for CO sequestration enhanced coalbed methane recovery. The model is developed based on a bi-dispersed structure model by assuming that coal consists of microporous micro-particles, meso/macro-pores and open microfractures. The bi-disperse diffusion theory and the Maxwell-Stefan approach were incorporated in the model, providing an improved simulation of the CH —CO /CH —N counter diffusion dynamics. In the model, the counter diffusion process is numerically coupled with the flow of the mixture gases occurring within macro-pores or fractures in coal so as to account for the interaction between diffusion and flow in gas transport through coals. The model was validated by both experimental data from literature and our CO flush tests, and shows an excellent agreement with the experiments. The results reveal that the gas diffusivities, in particular the micro-pore diffusivities are strongly concentration-dependent.

Keywords： multi-scale model gas transport coal coalbed methane CO2sub> sequestration

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Rh2sub>O3sub>/hexagonal CePO4sub> nanocatalysts for N2sub>O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Hexagonal CePO nanorods were prepared by a precipitation method and hexagonal CePO nanowires were prepared by hydrothermal synthesis at 150 °C. Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials. The Rh O supported on the CePO nanowires was much more active for the catalytic decomposition of N O than the Rh O supported on CePO nanorods. The stability of both catalysts as a function of time on stream was studied and the influence of the co-feed (CO , O , H O or O /H O) on the N O decomposition was also investigated. The samples were characterized by N adsorption-desorption, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-programmed reduction, oxygen temperature-programmed desorption, and CO temperature-programmed desorption in order to correlate the physicochemical and catalytic properties.

Keywords： Rh2sub>O3sub> CePO4sub> N2sub>O decomposition

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CO2sub> methanation and co-methanation of CO and CO2sub> over Mn-promoted Ni/Al2sub>O3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2, Pages 273-280 doi: 10.1007/s11705-016-1563-5

Abstract: Ni particle agglomeration due to improved Ni dispersion and weakened interactions between the nickel species

Keywords： Mn promotion nickel catalysts CO2sub> methanation co-methanation of CO and CO2sub>

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Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr2sub>O3sub> Systemwith Al2sub>O3sub> and Cr2sub>O3sub> Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Strategic Study of CAE 2004, Volume 6, Issue 6, Pages 63-67

Abstract: lt;/sub>O3 system with AI2O3and Cr2O3 diluents were conducted, and the effects of reactionstarting temperature TO, diluents AI2O3 and Cr2O3 on the adiabatic combustion temperatureThe near linear relation between T0 and Tad was obtained

Keywords： cermet combustion synthesis Al - Cr2sub>O3sub> system thermodynamics reaction model

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ZnFe2sub>O4sub> deposited on BiOCl with exposed (001) and (010) facets for photocatalyticreduction of CO2sub> in cyclohexanol

Guixian Song, Xionggang Wu, Feng Xin, Xiaohong Yin

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2, Pages 197-204 doi: 10.1007/s11705-016-1606-y

Abstract: ZnFe O -BiOCl composites were prepared by both hydrothermal and direct precipitation processes and the structures and properties of the samples were characterized by various instrumental techniques. The samples were then used as catalysts for the photocatalytic reduction of CO in cyclohexanol under ultraviolet irradiation to give cyclohexanone (CH) and cyclohexyl formate (CF). The photocatalytic CO reduction activities over the hydrothermally prepared ZnFe O -BiOCl composites were higher than those over the directly-precipitated composites. This is because compared to the direct-precipitation sample, the ZnFe O nanoparticles in the hydrothermal sample were smaller and more uniformly distributed on the surface of BiOCl and so more heterojunctions were formed. Higher CF and CH yields were obtained for the pure BiOCl and BiOCl composite samples with more exposed (001) facets than for the samples with more exposed (010) facets. This is due to the higher density of oxygen atoms in the exposed (001) facets, which creates more oxygen vacancies, and thereby improves the separation efficiency of the electron-hole pairs. More importantly, irradiation of the (001) facets with ultraviolet light produces photo-generated electrons which is helpful for the reduction of CO to ·CO . The mechanism for the photocatalytic reduction of CO in cyclohexanol over ZnFe O -BiOCl composites with exposed (001) facets involves electron transfer and carbon radical formation.

Keywords： reduction of CO2sub> cyclohexanol ZnFe2sub>O4sub> deposited BiOCl facet composite

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Title Author Date Type Operation

Effects of support acidity on the reaction mechanisms of selective catalytic reduction of NO by CH

Shicheng XU, Junhua LI, Dong YANG, Jiming HAO

Journal Article

Spray Preparation, Microstructure and Properties of Al2sub>O3sub>-Mxsub>O Hard -

Wang Biao,Wang Yudong,Li Huiling,Zhang Zihua

Journal Article

Roles of various Ni species on TiO

Xiaoping CHEN, Jihai XIONG, Jinming SHI, Song XIA, Shuanglin GUI, Wenfeng SHANGGUAN

Journal Article

Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acid

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Journal Article

Major bridge projects——a multi-disciplinary approach

OSTENFELD, Erik Y. ANDERSEN

Journal Article

Self-sustained catalytic combustion of CO enhanced by micro fluidized bed: stability operation, fluidization state and CFD simulation

Journal Article

Source apportionment of PM

Wei WEN,Shuiyuan CHENG,Lei LIU,Gang WANG,Xiaoqi WANG

Journal Article

Coupling the porous conditional moment closure with the random pore model: applications to gasification and CO

Y. KLIMENKO

Journal Article

nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The fate of nitrogen and iron species

Journal Article

Review on design and evaluation of environmental photocatalysts

Xin Li, Jun Xie, Chuanjia Jiang, Jiaguo Yu, Pengyi Zhang

Journal Article

A multi-scale model for CO

WEI, Y. QIN

Journal Article

Rh2sub>O3sub>/hexagonal CePO4sub> nanocatalysts for N2sub>O decomposition

Huan Liu, Zhen Ma

Journal Article

CO2sub> methanation and co-methanation of CO and CO2sub> over Mn-promoted Ni/Al2sub>O3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr2sub>O3sub> Systemwith Al2sub>O3sub> and Cr2sub>O3sub> Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Journal Article

ZnFe2sub>O4sub> deposited on BiOCl with exposed (001) and (010) facets for photocatalyticreduction of CO2sub> in cyclohexanol

Guixian Song, Xionggang Wu, Feng Xin, Xiaohong Yin

Journal Article

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