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Fabrication of N-doped carbon nanobelts from a polypyrrole tube by confined pyrolysis for supercapacitors

Wei Wang, Haijun Lv, Juan Du, Aibing Chen

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1312-1321 doi: 10.1007/s11705-020-2033-7

Abstract: In this present work, N-doped carbon nanobelts (N-CNBs) were prepared by a confined-pyrolysis approachThe silica layer provided a confined space for the Ppy pyrolysis, thereby hindering the rapid overflowof pyrolysis gas, which is the activator for the formation of carbonaceous materials.At the same time, the confined environment can activate the carbon shell to create a thin wall and stripThis process of confined pyrolysis realizes self-activation during the pyrolysis of Ppy to obtain the

Keywords： carbon nanobelts     polypyrrole     N-doped     confined pyrolysis     supercapacitor    

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Ultrafine Fe-modulated Ni nanoparticles embedded within nitrogen-doped carbon from Zr-MOFs-confined conversion

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7,   Pages 1114-1124 doi: 10.1007/s11705-021-2087-1

Abstract: ultrafine Fe-modulated Ni nanoparticles embedded in a porous Ni-doped carbon matrix were produced by the pyrolysis

Keywords： metal-organic framework     pyrolysis     ultrafine     Fe-modulated Ni nanoparticles     oxygen evolution reaction    

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Development of deep neural network model to predict the compressive strength of FRCM confined columns

Khuong LE-NGUYEN; Quyen Cao MINH; Afaq AHMAD; Lanh Si HO

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10,   Pages 1213-1232 doi: 10.1007/s11709-022-0880-7

Abstract: double hidden layers (APDL-1) was shown to be the best to predict the compressive strength of FRCM confined

Keywords： FRCM     deep neural networks     confinement effect     strength model     confined concrete    

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Fabrication of bimetallic Cu–Zn adsorbents with high dispersion by using confined space for gas adsorptive

Frontiers of Chemical Science and Engineering   Pages 1623-1631 doi: 10.1007/s11705-022-2202-y

Abstract: Here, we report a simple but efficient strategy for dispersing active components by using a confinedSuch a confined space does not exist in the conventional support, calcined SBA-15, which does not containThe Cu and Zn precursors were introduced to the confined space in the AS and were converted to CuO andConfined space in the AS and the strong interactions caused by the abundant hydroxyl groups are responsible

Keywords： bimetallic adsorbents     confined space     mesoporous silica     propene/propane separation    

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Ductility improvement of GFRP-RC beams using precast confined concrete block in compression zone

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0968-8

Abstract: beams depends on the ductility of their compression zones, the present study proposes using a precast confined

Keywords： ductility     four-point bending test     glass fiber-reinforced polymer     precast confined concrete block    

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Centrifuge model test and field measurement analysis for foundation pit with confined water

Chunlin DING , Xiaohong MENG ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 299-304 doi: 10.1007/s11709-009-0035-0

Abstract: law of centrifuge test was developed for the seepage field and stress field of a foundation pit with confineddisplacement response of the ground and retaining structure during dewatering and excavation for the pit with confinedwater, which provides a reliable basis for the design and construction of the pit with confined water

Keywords： foundation pit with confined water     centrifuge model test     seepage-stress coupling field     similarity relation    

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Confined masonry as practical seismic construction alternative–the experience from the 2014 Cephalonia

Fillitsa KARANTONI, Stavroula PANTAZOPOULOU, Athanasios GANAS

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 270-290 doi: 10.1007/s11709-017-0390-1

Abstract: restructuring of the building stock, using a structural system that is most like what is known today as confined

Keywords： Cephalonia     confined masonry     comparative FEM analysis     unreinforced masonry     seismic damage    

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Thermodynamic analysis of reaction pathways and equilibrium yields for catalytic pyrolysis of naphtha

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1700-1712 doi: 10.1007/s11705-022-2207-6

Abstract: length and hydrocarbon type significantly affect the production of light olefins during the catalytic pyrolysisand operation parameters optimization, the reaction pathways and equilibrium yields for the catalytic pyrolysisdevelopment of superior catalysts and the selection of proper operation parameters for the catalytic pyrolysis

Keywords： naphtha     catalytic pyrolysis     reaction pathway     equilibrium yield    

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Nano-confined ammonia borane for chemical hydrogen storage

M. A. WAHAB, Huijun ZHAO, X. D. YAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 27-33 doi: 10.1007/s11705-011-1171-3

Abstract: There is a great demand for a sufficient and sustainable energy supply. Hence, the search for applicable hydrogen storage materials is extremely important owing to the diversified merits of hydrogen energy. In this regard, ammonia borane (NH BH , AB) containing 19.6 wt-% hydrogen has been considered as a promising material for hydrogen storage applications to realize the “hydrogen economy”, but with limits from slow kinetics of hydrogen release and by-product of trace gases such as ammonia and borazine. In this review, we introduce the recent research on AB, regarding to the nanoconfinement effect on improving the kinetics at a relatively low temperature and the prevention/reduction of undesirable gas formation.

Keywords： ammonia borane     hydrogen storage    

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Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1581-0

Abstract: >

● The co-existing metals in WPCBs has positive catalytic influence in pyrolysis

Keywords： Waste printed circuit board     Catalyst     Pyrolysis     Kinetics    

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Co-pyrolysis of sludge and kaolin/zeolite in a rotary kiln: Analysis of stabilizing heavy metals

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1488-1

Abstract:

• Adding kaolin/zeolite promotes the formation of stable heavy metals.

Keywords： Co-pyrolysis     Sewage sludge     Heavy metals     Rotary kiln     Immobilization mechanism    

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Theoretical study on the mechanism of sulfur migration to gas in the pyrolysis of benzothiophene

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 3,   Pages 334-346 doi: 10.1007/s11705-022-2209-4

Abstract: The release and control of sulfur species in the pyrolysis of fossil fuels and solid wastes have attractedthe mechanism of sulfur migration during the release of sulfur-containing radicals in benzothiophene pyrolysisstrong competitiveness of S and SH radicals results in abundant H2S during benzothiophene pyrolysisstudy lays a foundation for elucidating sulfur migration mechanisms and furthering the development of pyrolysis

Keywords： benzothiophene     sulfur migration     pyrolysis     density functional theory    

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Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Frontiers of Chemical Science and Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11705-023-2375-z

Abstract: However, decalin contains two isomers with a tunable composition, and their effects on the pyrolysisHerein, we investigated the pyrolysis of decalin isomers, i.e., cis-decalin, trans-decalinThe pyrolysis results confirmed that conversion of the tested fuels (600–725 °C, 4 MPa) decreased inDetailed analyses of the pyrolysis products were used to compare the product distributions from cisThis work demonstrates the relationship between the cis/trans structures and the pyrolysis

Keywords： endothermic fuel     decalin     pyrolysis     heat sink     molecular structure    

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Fast and catalytic pyrolysis of xylan: Effects of temperature and M/HZSM-5 (M= Fe, Zn) catalysts on pyrolytic

Xifeng ZHU, Qiang LU, Wenzhi LI, Dong ZHANG,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 424-429 doi: 10.1007/s11708-010-0015-z

Abstract: Pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) was employed to achieve fast pyrolysis of xylanand on-line analysis of pyrolysis vapors.temperature on pyrolytic products, and to reveal the effect of HZSM-5 and M/HZSM-5 (M= Fe, Zn) zeolites on pyrolysisCatalytic cracking of pyrolysis vapors with HZSM-5 and M/HZSM-5 (M= Fe, Zn) catalysts significantly altered

Keywords： xylan     fast pyrolysis     catalytic pyrolysis     Py-GC/MS     HZSM-5    

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Mechanism insight into the formation of HS from thiophene pyrolysis: A theoretical study

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1404-8

Abstract: ListItem>

• Possible formation pathways of H2S were revealed in thiophene pyrolysis

Keywords： Density functional theory     Waste rubber     Thiophene     H2S     Pyrolysis    

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Title Author Date Type Operation

Fabrication of N-doped carbon nanobelts from a polypyrrole tube by confined pyrolysis for supercapacitors

Wei Wang, Haijun Lv, Juan Du, Aibing Chen

Journal Article

Ultrafine Fe-modulated Ni nanoparticles embedded within nitrogen-doped carbon from Zr-MOFs-confined conversion

Journal Article

Development of deep neural network model to predict the compressive strength of FRCM confined columns

Khuong LE-NGUYEN; Quyen Cao MINH; Afaq AHMAD; Lanh Si HO

Journal Article

Fabrication of bimetallic Cu–Zn adsorbents with high dispersion by using confined space for gas adsorptive

Journal Article

Ductility improvement of GFRP-RC beams using precast confined concrete block in compression zone

Journal Article

Centrifuge model test and field measurement analysis for foundation pit with confined water

Chunlin DING , Xiaohong MENG ,

Journal Article

Confined masonry as practical seismic construction alternative–the experience from the 2014 Cephalonia

Fillitsa KARANTONI, Stavroula PANTAZOPOULOU, Athanasios GANAS

Journal Article

Thermodynamic analysis of reaction pathways and equilibrium yields for catalytic pyrolysis of naphtha

Journal Article

Nano-confined ammonia borane for chemical hydrogen storage

M. A. WAHAB, Huijun ZHAO, X. D. YAO

Journal Article

Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

Journal Article

Co-pyrolysis of sludge and kaolin/zeolite in a rotary kiln: Analysis of stabilizing heavy metals

Journal Article

Theoretical study on the mechanism of sulfur migration to gas in the pyrolysis of benzothiophene

Journal Article

Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Journal Article

Fast and catalytic pyrolysis of xylan: Effects of temperature and M/HZSM-5 (M= Fe, Zn) catalysts on pyrolytic

Xifeng ZHU, Qiang LU, Wenzhi LI, Dong ZHANG,

Journal Article

Mechanism insight into the formation of HS from thiophene pyrolysis: A theoretical study

Journal Article