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PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O catalysts

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1369-z

Abstract:

• Pt/CZL exhibits the optimum catalytic performance for HC and NOx elimination.

Keywords： Precious metal-loaded (Ce     Zr     La)O2 catalysts     Oxygen mobility     Catalytic performance    

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NO oxidation over Co-La catalysts and NO

Tiejun Zhang,Jian Li,Hong He,Qianqian Song,Quanming Liang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0906-x

Abstract: The Co-La catalyst (pH= 1) exhibited maximum NO conversion of 43% at 180°C.A series of Co-La catalysts were prepared using the wet impregnation method and the synthesis of catalystsAll the catalysts were systematically investigated for NO oxidation and SO resistance in a fixed bedAmong the catalysts, the one synthesized at pH= 1 exhibited the maximum NO conversion of 43% at 180°C

Keywords： NO catalytic oxidation     pH effect     Low temperature     Sulfur dioxide     High space velocity     SCR    

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Effects of MgO promoter on properties of Ni/Al2O3 catalysts for partial oxidation of methane to syngas

QIU Yejun, CHEN Jixiang, ZHANG Jiyan

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 167-171 doi: 10.1007/s11705-007-0031-7

Abstract: The effects of MgO promoter on the physico-chemical properties and catalytic performance of Ni/AlO catalystsIt was found that the MgO promoter benefited from the uniformity of nickel species in the catalysts,Moreover, for the catalysts with a proper amount of MgO promoter, the nickel dispersiveness was enhancedthe reversed water gas shift reaction, which led to an increase in CO selectivity and a decrease in H2

Keywords： excessive     selectivity     decrease     dispersiveness     physico-chemical    

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Properties of La1-xCexCoO3 system perovskite-type catalysts for diesel engine exhaust removal

GONG Cairong, FAN Guoliang, HOU Yanfeng, ZHANG Zhongrong, SONG Chonglin, HUANG Qifei

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 6-10 doi: 10.1007/s11705-007-0002-z

Abstract: A series of complex oxide LaCeCoO catalysts was synthesized at a low temperature through a combustionprocess, in which x is among 0, 0.1, 0.2, 0.4 and 0.6 corresponding to the quantity of La partial substitutionThe catalysts were characterized for phase composition using chemical analysis and X-ray diffraction.The results show that after partial substitution of La with Ce, the oxygen vacancy concentration increasesIt is also worth noting that the doped catalysts showed good stability.

Keywords： catalytic mechanism     combustion     corresponding     LaCeCoO     catalytic activity    

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Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5,   Pages 108-171 doi: 10.1007/s11783-021-1396-4

Abstract: Herein, we successfully synthesized three kinds of MnFe2O4 NPs with distinctivesizes and shapes as catalysts for reductive degradation of methylene blue, rhodamine 6G, rhodamine B>O4 NPs and highly related to the surface-to-volume ratio and atom arrangements.Furthermore, the MnFe2O4 NPs could be readily recovered by a magnet and reusedThe size and shape effects of MnFe2O4 nanoparticles demonstrated in this work not

Keywords： Dye degradation     MnFe2O4 nanoparticles     Size and shape-control    

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Evaluation of H2 on the Evolution Mechanism of NOx Storage and Reductionover Pt–Ba–Ce/γ-Al2O3 Catalysts Article

Pan Wang, Jing Yi, Chuan Sun, Peng Luo, Lili Lei

Engineering 2019, Volume 5, Issue 3,   Pages 568-575 doi: 10.1016/j.eng.2019.02.005

Abstract:

In this investigation, Pt–Ba–Ce/γ-Al2O3 catalysts were preparedby incipient wetness impregnation and experiments were performed to evaluate the influence of H2 onThe physical and chemical properties of the Pt–Ba–Ce/γ-Al2O3catalysts were studied using a combination of characterization techniques, which showed that PtO<(XRD) spectra, dispersed well on the γ-Al2O3, as shown by transmission electron microscope (TEM

Keywords： Pt–Ba–Ce/γ-Al2O3 catalysts     Physicochemical properties     NOx storageand reduction     NOx emission     H2 reductant    

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On the monolayer dispersion behavior of Co3O4 on HZSM-5 support: designing applicablecatalysts for selective catalytic reduction of nitrogen oxides by ammonia

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, Co3O4/ZSM-5 catalysts with different loadingsthreshold of 0.061 mmol 100 m–2, equaling to a weight percentage around 4.5%.It has been revealed that the quantities of surface active oxygen (O2–) and acidcapacity, possesses the most abundant active O2– species and acidic sites, therebycapacity amount of Co3O4 onto HZSM-5 support.

Keywords： Co3O4/ZSM-5     NOx-SCR by NH3     monolayer dispersionthreshold effect     surface acid sites     surface active O2– anions    

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CO2 methanation and co-methanation of CO and CO2 over Mn-promoted Ni/Al2O3 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: A series of Mn-promoted 15 wt-% Ni/Al O catalysts were prepared by an incipient wetness impregnationThe effect of the Mn content on the activity of the Ni/Al O catalysts for CO methanation and the co-methanationThe catalysts were characterized by N physisorption, hydrogen temperature-programmed reduction and desorptionThe Mn-promoted 15 wt-% Ni/Al O catalysts had improved CO methanation activity especially at low temperaturesThe co-methanation tests on the 1.71Mn-Ni/Al O catalyst indicated that adding Mn markedly enhanced the

Keywords： Mn promotion     nickel catalysts     CO2 methanation     co-methanation of CO and CO2    

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Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11684-022-1565-0

Abstract:

● Cu addition enhances CH3OH oxidation and alleviates its inhibitory effect on SCR.

Keywords： Copper modification     Sb-CeZr2Ox catalyst     NOx     Methanol    

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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: A series of CeO supported V O catalysts with various loadings were prepared with different calcinationThe catalysts were evaluated for low temperature selective catalytic reduction (SCR) of NO with ammoniaThe effects of O and SO on catalytic activity were also studied.The catalysts were characterized by specific surface areas (S ) and X–ray diffraction (XRD) methods.The formation of CeVO on the surface of catalysts caused the decrease of redox ability.

Keywords： V2O5/CeO2 catalysts     NH3-SCR (selective catalytic reduction    

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Tuning of the active phase structure and hydrofining performance of alumina-supported tri-metallic WMoNi catalysts

Shufeng Shan, Haiyan Liu, Gang Shi, Xiaojun Bao

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 59-69 doi: 10.1007/s11705-017-1686-3

Abstract: The effects of phosphorus on the structure and hydrofining performance of tri-metallic WMoNi/Al O catalystsIn contrast, when phosphorus was incorporated into a tri-metallic WMoNiP/Al O catalyst prepared by aThese results show that incorporating phosphorus into a WMoNi/Al O catalyst can finely tune the structure

Keywords： fluid catalytic cracking diesel     hydrofining performance     WMoNiP/Al2O3     synergetic    

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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: Experimental results showed that the catalysts were considerably stable in the CH combustion reaction

Keywords： Co3O4-SnO2     complete oxidation     methane (CH4)    

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Rh2O3/hexagonal CePO4 nanocatalysts for N2O 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: 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 NO 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 theco-feed (CO , O , H O or O /H O) on the N O decomposition was also investigated.

Keywords： Rh2O3     CePO4     N2O decomposition    

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Influence of crystalline phase of Li-Al-O oxides on the activity of Wacker-type catalysts in dimethyl

Yadong GE, Yuanyuan DONG, Shengping WANG, Yujun ZHAO, Jing LV, Xinbin MA

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 415-422 doi: 10.1007/s11705-012-1214-4

Abstract: The catalysts supported on LiAl O (spinel) for vapor phase synthesis of dimethyl carbonate (DMC) frommolar ratio and calcination temperature greatly influence the structure of crystalline phase of Li-Al-ODesirable LiAl O (spinel) was formed at 800°C, while LiAl O (primitive cube) formed at 900°C is undesirableThe CuCl -PdCl /LiAl O (spinel) with better electron transfer ability and low Pd reduction temperature

Keywords： Wacker-type catalyst     dimethyl carbonate     methyl nitrite     spinel    

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Investigation of fluorescence characterization and electrochemical behavior on the catalysts of nanosized

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: temperatures range from 423K to 673K by selective catalytic oxidation (SCO) over a nanosized Pt-Rh/γ-Al Oimpregnation method of hexachloroplatinic acid (H PtCl ) and rhodium (III) nitrate (Rh(NO ) ) with γ-Al OThe characterization of catalysts were thoroughly measured using transmission electron microscopy (TEMTherefore, the application of nanosized Pt-Rh/γ-Al O catalyst can significantly enhance the catalyticResults obtained from the CV may explain the significant catalytic activity of the catalysts.

Keywords： ammonia (NH3)     nanosized Pt-Rh/γ-Al2O3 catalyst     excitation-emission fluorescent    

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Title Author Date Type Operation

PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O catalysts

Journal Article

NO oxidation over Co-La catalysts and NO

Tiejun Zhang,Jian Li,Hong He,Qianqian Song,Quanming Liang

Journal Article

Effects of MgO promoter on properties of Ni/Al2O3 catalysts for partial oxidation of methane to syngas

QIU Yejun, CHEN Jixiang, ZHANG Jiyan

Journal Article

Properties of La1-xCexCoO3 system perovskite-type catalysts for diesel engine exhaust removal

GONG Cairong, FAN Guoliang, HOU Yanfeng, ZHANG Zhongrong, SONG Chonglin, HUANG Qifei

Journal Article

Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Journal Article

Evaluation of H2 on the Evolution Mechanism of NOx Storage and Reductionover Pt–Ba–Ce/γ-Al2O3 Catalysts

Pan Wang, Jing Yi, Chuan Sun, Peng Luo, Lili Lei

Journal Article

On the monolayer dispersion behavior of Co3O4 on HZSM-5 support: designing applicablecatalysts for selective catalytic reduction of nitrogen oxides by ammonia

Journal Article

CO2 methanation and co-methanation of CO and CO2 over Mn-promoted Ni/Al2O3 catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

Tailoring the simultaneous abatement of methanol and NO on Sb-Ce-Zr catalysts via copper modification

Journal Article

Characterization and performance of V

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

Journal Article

Tuning of the active phase structure and hydrofining performance of alumina-supported tri-metallic WMoNi catalysts

Shufeng Shan, Haiyan Liu, Gang Shi, Xiaojun Bao

Journal Article

Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Journal Article

Rh2O3/hexagonal CePO4 nanocatalysts for N2O decomposition

Huan Liu, Zhen Ma

Journal Article

Influence of crystalline phase of Li-Al-O oxides on the activity of Wacker-type catalysts in dimethyl

Yadong GE, Yuanyuan DONG, Shengping WANG, Yujun ZHAO, Jing LV, Xinbin MA

Journal Article

Investigation of fluorescence characterization and electrochemical behavior on the catalysts of nanosized

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

Journal Article