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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: MnO<sub>xsub> and Sm–Mn catalysts were prepared with the coprecipitation method, and they showedsub> by NH<sub>3sub> between 50 and 300 °C in the presence of excess oxygen. 0.10Sm–Mn catalyst indicatedTherefore, it significantly enhances the NO conversion, N<sub>2sub> selectivity, and sulfur resistance>2sub> and the amount of surface adsorbed oxygen.The Bronsted acid sites strengthen significantly due to the addition of SO<sub>2sub>, enhancing the

Keywords： MnO<sub>xsub>     Sm–Mn     catalyst     NH<sub>3sub>-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:

• CeO<sub>2sub> doping significantly improved low-temperature NH<sub>3sub>-SCR activity on FeTiO<sub>xsub>.

Keywords： NH<sub>3sub>-SCR     CeO<sub>2sub> doping     Low-temperature NO<sub>xsub> removal     Improved redox    

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

Keywords： V<sub>2sub>O<sub>5sub>/CeO<sub>2sub> catalysts     NH<sub>3sub>-SCR (selective catalytic reduction    

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On the monolayer dispersion behavior of Co<sub>3sub>O<sub>4sub> 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, Co<sub>3sub>O<sub>4sub>/ZSM-5 catalysts with different loadingsCo<sub>3sub>O<sub>4sub> can spontaneously disperse on HZSM-5 support with a monolayer dispersionsites are crucial for the reaction, which can adsorb and activate NO<sub>xsub> and NH<sub>3Below the monolayer dispersion threshold, Co<sub>3sub>O<sub>4sub> is finely dispersed as sub-monolayerscapacity amount of Co<sub>3sub>O<sub>4sub> onto HZSM-5 support.

Keywords： Co<sub>3sub>O<sub>4sub>/ZSM-5     NO<sub>xsub>-SCR by NH<sub>3sub>     monolayer dispersionthreshold effect     surface acid sites     surface active O<sub>2sub>– anions    

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NiBO (B = Mn or Co) catalysts for NH-SCR of NO at low-temperature in microwave field

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1696-y

Abstract:

● Microwave-assisted catalytic NH<sub>3sub>-SCR reaction over spinel

Keywords： Microwave field     Spinel oxides     NO<sub>xsub>     Selective catalytic reduction    

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different acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH<sub>3sub>

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

Abstract: <sub>3sub>) were synthesized and used for the selective catalytic reduction (SCR) of NO by NH<sub>3NH<sub>3sub>-SCR performances were conducted in the temperature range of 80 to 400 °C.> Ce<sub>2sub>(SO<sub>4sub>)<sub>3sub>, which is in agreement with their abilities of NH<sub>3<> on NH<sub>3sub>-SCR performances of Ce-based catalysts was systematically investigated by the X-rayThe key factors that can enhance the SCR are the existence of Ce4+, large NH<sub>3sub> adsorption

Keywords： CePO<sub>4sub>     CeVO<sub>4sub>     Ce<sub>2sub>(SO<sub>4sub>)<sub>3sub>     selective catalytic reduction    

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Metal-Free Hexagonal Perovskite High-Energetic Materials with NH<sub>3sub>OH+/NH<sub>2sub>NH<sub>3sub>+ 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(ClO<sub>4sub>)<sub>3sub> (H<sub>2sub>dabco2+ = 1,4-diazabicyclo[2.2.2]octane-1,4-diium), were fabricated via an easily scaled-up synthetic route using NH<sub>3sub>OH+ and NH<sub>2sub>NH<sub>3sub>+ as B-site cations, respectively.Compared with their NH<sub>4sub>+ analog ((H<sub>2sub>dabco)(NH<sub>4sub>)(ClO<sub>4sub>)<sub>3sub>; DAP-4), which has a cubic perovskite structure, DAP-6 and DAP-7 have higher crystal

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

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Effect of alumina and zirconia as binders on the activity of Fe-BEA for NH

Jin Shi, Zihao Zhang, Mingxia Chen, Zhixiang Zhang, Wenfeng Shangguan, Shunchao Gu, Hirano Shin-ichi

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-018-1012-4

Abstract: Fe-BEA catalysts are active for the NH -SCR of NO.Accordingly, the SCR activity increased slightly in low temperature but decreased sharply in high temperaturemagnitude resulted in higher catalytic oxidation ability, which gave rise to little change in the SCR

Keywords： NH<sub>3sub>-SCR     NO     Fe-BEA     Binder     Alumina     Zirconia    

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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 NH<sub>4sub>+/NO<sub>3sub>–

Keywords： Anammox     Denitrification     FeS     NH<sub>4sub>+/NO<sub>3sub>−     Sulfammox    

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Promotion of transition metal oxides on the NH

Weiman Li, Haidi Liu, Yunfa Chen

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0914-x

Abstract: Manganese and chromium oxides promote the NH -SCR activity of Zr-Ce mixed oxide.More acid sites and higher reducibility may responsible for the high SCR ability.were prepared by a homogeneous precipitation method for the selective catalytic reduction of NO with NH-SCR activity.Cr-Zr-Ce and Mn-Zr-Ce catalysts are much more active than ZrO -CeO binary oxide for the low temperature NH

Keywords： NH<sub>3sub>-selective catalytic reduction     NO<sub>xsub>     Low temperature     Cr-Zr-Ce    

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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 wasTwo 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： V<sub>2sub>O<sub>5sub>-WO<sub>3sub>/TiO<sub>2sub> catalysts     thermal deactivation     regeneration     NH<sub>4sub>Cl     dilute H<sub>2sub>SO<sub>4sub> solution    

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Chemical poison and regeneration of SCR catalysts for NO<sub>xsub>

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: Selective catalytic reduction (SCR) of NO with NH is an effective technique to remove NO from stationarydirections in developing poisoning resistance catalysts and facile efficient regeneration methods for SCR

Keywords： flue gas     DeNO<sub>xsub>     SCR catalyst     poison and regeneration    

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Investigation of fluorescence characterization and electrochemical behavior on the catalysts of nanosized Pt-Rh/γ-Al

Chang-Mao HUNG, Wen-Liang LAI, Jane-Li LIN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 428-434 doi: 10.1007/s11783-013-0517-0

Abstract: This work describes the environmentally friendly technology for oxidation of ammonia (NH ) to form nitrogenresults demonstrated that at a temperature of 673K and an oxygen content of 4%, approximately 99% of the NHN was the main product in NH -SCO process.Further, it reveals that the oxidation of NH was proceeds by the over-oxidation of NH into NO, whichwas conversely reacted with the NH to yield N .

Keywords： ammonia (NH<sub>3sub>)     nanosized Pt-Rh/γ-Al<sub>2sub>O<sub>3sub> catalyst     excitation-emission fluorescent    

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The effect of preparation conditions of Pt/Al

Lei YUAN, Xiang ZHENG, Kaijiao DUAN, Hao HU, Jinggang WANG, Seong Ihl WOO, Zhiming LIU

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 457-463 doi: 10.1007/s11783-013-0512-5

Abstract: Selective catalytic reduction of NO by H in the presence of oxygen has been investigated over Pt/Al O catalysts pre-treated under different conditions. Catalyst preparation conditions exert significant influence on the catalytic performance, and the catalyst pre-treated by H or H then followed by O is much more active than that pre-treated by air. The higher surface area and the presence of metallic Pt over Pt/Al O pre-treated by H or pretreated by H then followed by O can contribute to the formation of NO , which then promotes the reaction to proceed at low temperatures.

Keywords： NO<sub>xsub> reduction     Pt/Al<sub>2sub>O<sub>3sub>     preparation condition     H<sub>2sub>-SCR    

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Ammonia adsorption on graphene and graphene oxide: a first-principles study

Yue PENG, Junhua LI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 403-411 doi: 10.1007/s11783-013-0491-6

Abstract: The optimal adsorption and orientation of the NH molecules on the graphene surfaces were determined,and the adsorption energies ( ) as well as the Mulliken charge transfers of NH were calculated.The surface epoxy or hydroxyl groups can promote the adsorption of NH on the GO; the enhancement of

Keywords： graphene oxide     first-principles calculations     NH<sub>3sub> adsorption    

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Title Author Date Type Operation

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

Characterization and performance of V

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

Journal Article

On the monolayer dispersion behavior of Co<sub>3sub>O<sub>4sub> on HZSM-5 support: designing applicable

Journal Article

NiBO (B = Mn or Co) catalysts for NH-SCR of NO at low-temperature in microwave field

Journal Article

different acid anions on highly efficient Ce-based catalysts for selective catalytic reduction of NO with NH<sub>3sub>

Journal Article

Metal-Free Hexagonal Perovskite High-Energetic Materials with NH<sub>3sub>OH+/NH<sub>2sub>NH<sub>3sub>+ 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

Effect of alumina and zirconia as binders on the activity of Fe-BEA for NH

Jin Shi, Zihao Zhang, Mingxia Chen, Zhixiang Zhang, Wenfeng Shangguan, Shunchao Gu, Hirano Shin-ichi

Journal Article

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

Journal Article

Promotion of transition metal oxides on the NH

Weiman Li, Haidi Liu, Yunfa Chen

Journal Article

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

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

Journal Article

Chemical poison and regeneration of SCR catalysts for NO<sub>xsub>

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

Journal Article

Investigation of fluorescence characterization and electrochemical behavior on the catalysts of nanosized Pt-Rh/γ-Al

Chang-Mao HUNG, Wen-Liang LAI, Jane-Li LIN

Journal Article

The effect of preparation conditions of Pt/Al

Lei YUAN, Xiang ZHENG, Kaijiao DUAN, Hao HU, Jinggang WANG, Seong Ihl WOO, Zhiming LIU

Journal Article

Ammonia adsorption on graphene and graphene oxide: a first-principles study

Yue PENG, Junhua LI

Journal Article