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CO₂ capture 19

PM_2.5 16

2 14

TiO₂ 14

1 12

photocatalysis 10

CO₂ 9

CO₂ emissions 7

4 6

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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: Two types of regenerated solutions, namely NH Cl (1 mol/L) and dilute H SO (0.5 mol/L), were employedThe catalyst regenerated by aqueous NH Cl had a higher activity than that of the catalyst treated byThe main reason is that the NH generated from the decomposition of NH Cl at high temperatures can be

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

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different 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>)NH3sub>-SCR performances were conducted in the temperature range of 80 to 400 °C.> Ce2sub>(SO4sub>)3sub>, which is in agreement with their abilities of NH3sub>4sub>^3–, VO4sub>^3– and SO4sub>^2–4+, large NH3sub> adsorption

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

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On the monolayer dispersion behavior of Co3sub>O4sub> on HZSM-5 support: designing applicable

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1741-1754 doi: 10.1007/s11705-023-2332-x

Abstract: Based on monolayer dispersion theory, Co3sub>O4sub>/ZSM-5 catalysts with different loadingsCo3sub>O4sub> can spontaneously disperse on HZSM-5 support with a monolayer dispersionsites are crucial for the reaction, which can adsorb and activate NOxsub> and NH3reaction performance. 4% Co3sub>O4sub>/ZSM-5, the catalyst close to the monolayer dispersioncapacity amount of Co3sub>O4sub> onto HZSM-5 support.

Keywords： Co3sub>O4sub>/ZSM-5 NOxsub>-SCR by NH3sub> monolayer dispersionthreshold effect surface acid sites surface active O2sub>^– anions

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Removal of ammonium and nitrate through Anammox and FeS-driven autotrophic denitrification

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1674-4

Abstract:

● Simultaneous NH4sub>⁺/NO3sub>^–

Keywords： Anammox Denitrification FeS NH4sub>⁺/NO3sub>⁻ Sulfammox

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Phase equilibrium of the ternary system of NH 4 Cl—CaCl 2 —H 2 O at 50°C

Xia LI, Junsheng YUAN, Zhiyong JI, Jianxin CHEN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1, Pages 75-77 doi: 10.1007/s11705-009-0296-0

Abstract: The equilibrium data on the ternary system of NHCl—CaCl—HO at 50°C were investigated using the wet-residue method. The experimental results show that there are three pure phase crystal areas of NHCl, 2NHCl·CaCl·3HO and CaCl·2HO, two mixture phase crystal areas of NHCl and 2NHCl·CaCl·3HO, and 2NHCl·CaCl·3HO and CaCl·2HO in the system. A new hydration double salt (2NHCl·CaCl·3HO) was found in the ternary equilibrium system for the first time.

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Denitrification performance and sulfur resistance mechanism of Sm–Mn catalyst for low temperature NH-SCR

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5, Pages 617-633 doi: 10.1007/s11705-022-2258-8

Abstract: MnOxsub> and Sm–Mn catalysts were prepared with the coprecipitation method, and they showedsub> by NH3sub> between 50 and 300 °C in the presence of excess oxygen. 0.10Sm–Mn catalyst indicatedTherefore, it significantly enhances the NO conversion, N2sub> selectivity, and sulfur resistance>2sub> and the amount of surface adsorbed oxygen.The Bronsted acid sites strengthen significantly due to the addition of SO2sub>, enhancing the

Keywords： MnOxsub> Sm–Mn catalyst NH3sub>-SCR sulfur resistance

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CeO doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1539-2

Abstract:

• CeO2sub> doping significantly improved low-temperature NH3sub>-SCR activity on FeTiOxsub>.

Keywords： NH3sub>-SCR CeO2sub> doping Low-temperature NOxsub> removal Improved redox

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Enabling nickel ferrocyanide nanoparticles for high-performance ammonium ion storage

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2, Pages 226-235 doi: 10.1007/s11705-022-2198-3

Abstract: Here, we report a Ni2sub>Fe(CN)6sub>/multiwalled carbon nanotube composite electrode materialThe existence of multiwalled carbon nanotube ensures that the Ni2sub>Fe(CN)6sub>/multiwalledFurthermore, detailed ex situ characterizations demonstrate that Ni2sub>Fe(CN)6subTherefore, the Ni2sub>Fe(CN)6sub>/multiwalled carbon nanotube composite presents a long

Keywords： nickel ferrocyanides NH4sub>⁺ electrochemistry Prussian blue aqueous ammonium ion

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Metal-Free Hexagonal Perovskite High-Energetic Materials with NH3sub>OH⁺/NH2sub>NH3sub>⁺ as B-site Cations Article

Yu Shang, Zhi-Hong Yu, Rui-Kang Huang, Shao-Li Chen, De-Xuan Liu, Xiao-Xian Chen, Wei-Xiong Zhang, Xiao-Ming Chen

Engineering 2020, Volume 6, Issue 9, Pages 1013-1018 doi: 10.1016/j.eng.2020.05.018

Abstract: >2sub>dabco)B(ClO4sub>)3sub> (H2sub>dabco²⁺ = 1,4-diazabicyclo[2.2.2>+ and NH2sub>NH3sub>⁺ as B-site cations, respectively.Compared with their NH4sub>⁺ analog ((H2sub>dabco)(NH4sub>)(ClO4sub>)3sub>; DAP-4), which has a cubic perovskite structure, DAP-6 and DAP-7 have higher crystal>spsub> = 265.3 s), which is superior to that of hexanitrohexaazaisowurtzitane (CL-20; Q =

Keywords： Energetic materials Single explosive Solid propellant Metal-free Hexagonal perovskite

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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> demonstratedConsequently, the 30% ZnFe2sub>O4sub>/BiVO4sub> catalyst afforded a degradation>4sub>-based catalysts.Moreover, the as-synthesized ZnFe2sub>O4sub>/BiVO4sub> heterojunctions were quite

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

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Li4sub>SiO4sub>-coated LiNi0.5sub>Mn1.5sub>O4sub> as the high performance

Shifeng YANG, Wenfeng REN, Jian CHEN

Frontiers in Energy 2017, Volume 11, Issue 3, Pages 374-382 doi: 10.1007/s11708-017-0494-2

Abstract: The preparation of Li SiO -coated LiNi Mn O materials by sintering the SiO -coated nickel-manganese oxides with lithium salts using abundant and low-cost sodium silicate as the silicon source was reported. The samples were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. It was found that a uniform and complete SiO coating layer could be obtained at a suitable pH value of 10, which transformed to a good Li SiO coating layer afterwards. When used as the cathode materials for lithium-ion batteries, the Li SiO -coated LiNi Mn O samples deliver a better electrochemical performance in terms of the discharge capacity, rate capability, and cycling stability than that of the pristine material. It can still deliver 111.1 mAh/g at 20 C after 300 cycles, with a retention ratio of 93.1% of the stable capacity, which is far beyond that of the pristine material (101.3 mAh/g, 85.6%).

Keywords： lithium-ion batteries cathode material LiNi0.5sub>Mn1.5sub>O4sub> lithium-ion conductor

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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> 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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NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12, Pages 1973-1985 doi: 10.1007/s11705-023-2364-2

Abstract: Notably, the optimized 10Fe-8Cu/TiO2sub> catalyst exhibited exceptional catalytic performancein converting NO to NH3sub>, achieving an NO conversion rate exceeding 80% and an NH3subdemonstrate that Cu doping enhances the rate-limiting hydrogenation step and lowers the energy barrier for NH3sub> desorption, thereby resulting in improved NO conversion and enhanced selectivity toward

Keywords： NO hydrogenation synthetic ammonia 10Fe-xCu/TiO2sub> high selectivity

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Characterization and performance of V

Caiting LI, Qun LI, Pei LU, Huafei CUI, Guangming ZENG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2, Pages 156-161 doi: 10.1007/s11783-010-0295-x

Abstract: catalysts were evaluated for low temperature selective catalytic reduction (SCR) of NO with ammonia (NH

Keywords： V2sub>O5sub>/CeO2sub> catalysts NH3sub>-SCR (selective catalytic reduction

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Title Author Date Type Operation

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

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

Journal Article

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

Journal Article

On the monolayer dispersion behavior of Co3sub>O4sub> on HZSM-5 support: designing applicable

Journal Article

Removal of ammonium and nitrate through Anammox and FeS-driven autotrophic denitrification

Journal Article

Phase equilibrium of the ternary system of NH 4 Cl—CaCl 2 —H 2 O at 50°C

Xia LI, Junsheng YUAN, Zhiyong JI, Jianxin CHEN,

Journal Article

Denitrification performance and sulfur resistance mechanism of Sm–Mn catalyst for low temperature NH-SCR

Journal Article

CeO doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction

Journal Article

Enabling nickel ferrocyanide nanoparticles for high-performance ammonium ion storage

Journal Article

Metal-Free Hexagonal Perovskite High-Energetic Materials with NH3sub>OH⁺/NH2sub>NH3sub>⁺ as B-site Cations

Yu Shang, Zhi-Hong Yu, Rui-Kang Huang, Shao-Li Chen, De-Xuan Liu, Xiao-Xian Chen, Wei-Xiong Zhang, Xiao-Ming Chen

Journal Article

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

Journal Article

Li4sub>SiO4sub>-coated LiNi0.5sub>Mn1.5sub>O4sub> as the high performance

Shifeng YANG, Wenfeng REN, Jian CHEN

Journal Article

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

Huan Liu, Zhen Ma

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

NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Journal Article

Characterization and performance of V

Caiting LI, Qun LI, Pei LU, Huafei CUI, Guangming ZENG

Journal Article

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