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Effect of TiO

Navid Azizi, Mojgan Isanejad, Toraj Mohammadi, Reza M. Behbahani

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3, Pages 517-530 doi: 10.1007/s11705-018-1781-0

Abstract: The effects of the titanium dioxide nanoparticle load on the morphology and CO /CH separation performanceThe incorporation of TiO nanoparticles into the polymeric MMMs improved the CO /CH gas separation performance

Keywords： mixed matrix membrane TiO2sub> nanoparticles PEBAX-1657 CO2sub>/CH4sub> separation

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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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ZnFe2sub>O4sub>/BiVO4sub> Z-scheme heterojunction for efficient visible-light photocatalytic

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1728-1740 doi: 10.1007/s11705-023-2322-z

Abstract: A novel Z-scheme ZnFe2sub>O4sub>/BiVO4sub> heterojunction photocatalyst was successfullyCompared with the single-phase counterparts, ZnFe2sub>O4sub>/BiVO4sub> demonstratedconsiderably enhanced photogenerated charge separation efficiencies because of the Z-scheme transferConsequently, the 30% ZnFe2sub>O4sub>/BiVO4sub> catalyst afforded a degradationMoreover, the as-synthesized ZnFe2sub>O4sub>/BiVO4sub> heterojunctions were quite

Keywords： ZnFe2sub>O4sub>/BiVO4sub> Z-scheme heterojunction photocatalytic degradation

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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: oxygen atoms in the exposed (001) facets, which creates more oxygen vacancies, and thereby improves the separation

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

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Reduction potential of the energy penalty for CO capture in CCS

Frontiers in Energy 2023, Volume 17, Issue 3, Pages 390-399 doi: 10.1007/s11708-023-0864-x

Abstract: CO2sub> capture and storage (CCS) has been acknowledged as an essential part of a portfolio oftechnologies that are required to achieve cost-effective long-term CO2sub> mitigation.One of the crucial reasons for this delay lies in the unaffordable penalty caused by CO2sub> captureFrom the aspects of separation and capture technology innovation, the potential and promising direction

Keywords： CO2sub> capture and storage (CCS) CO2sub> separation energy penalty

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Cu-doped Bi/Bi2sub>WO6sub> catalysts for efficient N2sub> fixation by photocatalysis

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1412-1422 doi: 10.1007/s11705-023-2312-1

Abstract: >2sub>WO6sub> composite.>2sub>WO6sub>.The reduced work function improved the transfer and separation of charge carriers, which mainly caused>2sub>WO6sub>, respectively.>2sub>-to-NH3sub> conversion.

Keywords： Bi2sub>WO6sub> Cu doping work function photocatalytic N2sub> fixation chargeseparation

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acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH3sub>

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1399-1411 doi: 10.1007/s11705-023-2345-5

Abstract: Three kinds of Ce-based catalysts (CePO4sub>, CeVO4sub>, Ce2sub>(SO4sub>)The catalytic efficiencies of the three catalysts are as follow: CePO4sub> > CeVO4sub>> Ce2sub>(SO4sub>)3sub>, which is in agreement with their abilities of NH3sub>4sub>^3–, VO4sub>^3– and SO4sub>^2–2sub> for Ce2sub>(SO4sub>)3sub>.

Keywords： CePO4sub> CeVO4sub> Ce2sub>(SO4sub>)3sub> selective catalytic reduction

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Removal of P4sub>, PH3sub> and H2sub>S from Yellow Phosphoric Tail Gas by a Catalytic

Ning Ping,Hans-Jörg Bart,Wang Xueqian,Ma Liping,Chen Liang

Strategic Study of CAE 2005, Volume 7, Issue 6, Pages 27-35

Abstract: sulfide in yellow phosphorus tail gas was investigated with activated carbon and a home-made catalyst KU2.Both KU2 and activated carbon proved to be effective catalysts in the catalytic oxidation process (COP) for H2sub>S and PH3sub> removal.

Keywords： catalyst catalytic oxidation H2sub>S P4sub> PH3sub> fixed bed

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Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1, Pages 38-46 doi: 10.1007/s11705-011-1167-z

Abstract: An effective method for the regeneration of thermally deactivated commercial monolith SCR catalysts was investigated. Two types of regenerated solutions, namely NH Cl (1 mol/L) and dilute H SO (0.5 mol/L), were employed to treat the used catalyst. The effects of temperature and the regeneration process on the structural and textural properties of the catalysts were determined by X-ray diffraction, scanning electron microscopy, N adsorption/desorption, elemental analysis and Fourier transform infrared spectroscopy. The results suggest that the anatase phase of the used catalyst is maintained after exposure to high temperatures. Some of the catalytic activity was restored after regeneration. The catalyst regenerated by aqueous NH Cl had a higher activity than that of the catalyst treated by dilute H SO . The main reason is that the NH generated from the decomposition of NH Cl at high temperatures can be adsorbed onto the catalyst which promotes the reaction. The aggregated V O were partially re-dispersed during the regeneration process, and the intrinsic oxidation of ammonia with high concentrations of O is a factor that suppresses the catalytic activity.

Keywords： V2sub>O5sub>-WO3sub>/TiO2sub> catalysts thermal deactivation regeneration NH4sub>Cl dilute H2sub>SO4sub> solution

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Frontier science and challenges on offshore carbon storage

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1680-6

Abstract:

● The main direct seal up carbon options and challenges are reviewed.

Keywords： Offshore carbon storage Direct CO2sub> injection CO2sub>-CH4sub> replacement CO2sub>-EOR CCS hubs CO2sub> transport

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CH4sub> and N2sub>O emissions from double-rice cropping system as affected by Chinese milk

Heshui XU,Dengyun LI,Bo ZHU,Kai ZHANG,Yadong YANG,Chen WANG,Ying JIANG,Zhaohai ZENG

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 1, Pages 59-68 doi: 10.15302/J-FASE-2017137

Abstract: Chinese milk vetch (CMV) and rice straw (RS) were incorporated into soil to substitute for synthetic N fertilizers and to maintain soil fertility. However, little is known about the integrated impacts of CMV and RS incorporation on CH and N O emissions in double-rice cropping systems in southern China. A field experiment was conducted to estimate the integrated impacts of CMV and RS incorporation in the early- and late-rice seasons on CH and N O emissions. All treatments received uniform N inputs, 6%–37% of which was replaced by CMV and RS crop residue. CMV and/or RS incorporation produced equivalent or slightly more grain yield, while reducing N O emissions by 3%–43%. However, both CMV and RS incorporation increased CH emissions. Annual CH emissions ranged from 321 to 614 kg·hm from CMV and RS amendment treatments, which were 1.5–2.9 times higher than that from synthetic N. Compared with single synthetic N fertilizer, incorporation of CMV and/or RS increased GWP and yield-scaled GWP by 45%–164% and 45%–153%, respectively. Our results demonstrate CMV and RS amendments replacing N fertilizer, maintained stable yield, mitigated N O emission, but enhanced CH emission. Further study is needed on crop residue management in double-cropping rice systems.

Keywords： Chinese milk vetch CH4sub> double-rice cropping system grain yield N2sub>O rice straw

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Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3, Pages 265-270 doi: 10.1007/s11783-009-0019-2

Abstract: CoO-SnO hybrid oxides were prepared by the coprecipitation method and were used to oxidate methane (CH) in presence of oxygen. The CoO-SnO with a molar ratio of Co/(Co+Sn) at 0.75 exhibited the highest catalytic activity among all the CoO-SnO hybrid oxides. Experimental results showed that the catalysts were considerably stable in the CH combustion reaction, and were verified by X-ray photoelectron spectra (XPS). It was found that CoO was the active species, and SnO acted as a support or a promoting component in the CoO-SnO hybrid oxides. The surface area was not a major factor that affected catalytic activity. The hydrogen temperature-programmed reduction (H-TPR) results demonstrated that the interaction between cobalt and tin oxides accelerated the mobility of oxygen species of CoO-SnO, leading to higher catalytic activity.

Keywords： Co3sub>O4sub>-SnO2sub> complete oxidation methane (CH4sub>)

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Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8, Pages 1211-1223 doi: 10.1007/s11705-022-2145-3

Abstract: In this study, a Co3sub>O4sub>–CeO2sub> composite oxide catalyst was successfullyselectivity to KA-oil, which was benefited from the synergistic effects between Co³⁺/Co²⁺ and Ce⁴⁺/Ce³⁺ redox pairs, than bulk CeO2sub> and/or Co3sub>O4sub>.>3sub>O4sub>–CeO2sub>.

Keywords： Co3sub>O4sub>–CeO2sub> composite oxides cyclohexanone cyclohexanol ultrasonic-assisted

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Sulfur-deficient CoNi2sub>S4sub> nanoparticles-anchored porous carbon nanofibers as bifunctional

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1707-1717 doi: 10.1007/s11705-023-2308-x

Abstract: >2sub>S4sub> nanoparticles are prepared as bifunctional electrocatalyst.>2sub>S4sub>.>2sub>S4sub> from 1.68 to 0.52 eV.Moreover, the uniform distribution of CoNi2sub>S4sub> nanoparticles on carbon nanofibersevolution reaction and 380 mV@100 mA·cm^–2 for hydrogen evolution reaction.

Keywords： nanoparticle sulfur vacancy porous carbon nanofiber transition metal sulfides electrolysis

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NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4, Pages 373-386 doi: 10.1007/s11705-022-2223-6

Abstract: >2sub>O4sub> nanowires were firstly grown on the substrate of active carbon cloth to provideThen, the quinone-rich nitrogen-doped carbon shell structure was formed around NiCo2sub>O4sub> nanowires, and the obtained composite was used as electrode for electric double layer capacitorresults showed that the composite electrode displayed an area-specific capacitance of 1794 mF∙cm^–2 at the current density of 1 mA∙cm^–2.

Keywords： carbon cloth NiCo2sub>O4sub> nanowires core−shell structure quinone-rich electric double

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Title Author Date Type Operation

Effect of TiO

Navid Azizi, Mojgan Isanejad, Toraj Mohammadi, Reza M. Behbahani

Journal Article

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

Huan Liu, Zhen Ma

Journal Article

ZnFe2sub>O4sub>/BiVO4sub> Z-scheme heterojunction for efficient visible-light photocatalytic

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

Reduction potential of the energy penalty for CO capture in CCS

Journal Article

Cu-doped Bi/Bi2sub>WO6sub> catalysts for efficient N2sub> fixation by photocatalysis

Journal Article

acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH3sub>

Journal Article

Removal of P4sub>, PH3sub> and H2sub>S from Yellow Phosphoric Tail Gas by a Catalytic

Ning Ping,Hans-Jörg Bart,Wang Xueqian,Ma Liping,Chen Liang

Journal Article

Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

Journal Article

Frontier science and challenges on offshore carbon storage

Journal Article

CH4sub> and N2sub>O emissions from double-rice cropping system as affected by Chinese milk

Heshui XU,Dengyun LI,Bo ZHU,Kai ZHANG,Yadong YANG,Chen WANG,Ying JIANG,Zhaohai ZENG

Journal Article

Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Journal Article

Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Journal Article

Sulfur-deficient CoNi2sub>S4sub> nanoparticles-anchored porous carbon nanofibers as bifunctional

Journal Article

NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Journal Article

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