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Characterization and catalytic activity of soft-templated NiO-CeO

Luciano Atzori, Maria Giorgia Cutrufello, Daniela Meloni, Barbara Onida, Delia Gazzoli, Andrea Ardu, Roberto Monaci, Maria Franca Sini, Elisabetta Rombi

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 251-268 doi: 10.1007/s11705-020-1951-8

Abstract: Nanosized NiO, CeO and NiO-CeO mixed oxides with different Ni/Ce molar ratios were prepared by theOn the catalysts submitted to the same reduction pretreatment adopted for the activity tests the surfaceNiO and CeO nanocrystals of about 4 nm in size were obtained, regardless of the Ni/Ce molar ratio.The Raman and X-ray photoelectron spectroscopy results proved the formation of defective sites at the NiO-CeO

Keywords： soft template method     NiO-CeO<sub>2sub> catalysts     CO and CO<sub>2sub> co-methanation     synthetic natural    

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Catalytic combustion of methane over a highly active and stable NiO/CeO

Xiuhui Huang, Junfeng Li, Jun Wang, Zeqiu Li, Jiayin Xu

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 534-545 doi: 10.1007/s11705-019-1821-4

Abstract: In this paper, a NiO/CeO catalyst with high catalytic performance in methane combustion was synthesizedThe incorporation of NiO was found to enhance the concentration of oxygen vacancies, as well as the activityThe presence of CeO prevented the aggregation of NiO, enhanced reduction by NiO, and provided more oxygenkinetics study indicated that the reaction order was about 1.07 for CH and about 0.10 for O over the NiO

Keywords： methane combustion     NiO/CeO<sub>2sub> catalyst     interaction     oxygen vacancy     kinetic study    

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Cu-doped Bi/Bi<sub>2sub>WO<sub>6sub> catalysts for efficient N<sub>2sub> 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: it in photocatalytic N<sub>2sub> immobilization.>2sub>WO<sub>6sub> composite.>2sub>WO<sub>6sub>.>2sub>WO<sub>6sub>, respectively.>2sub>-to-NH<sub>3sub> conversion.

Keywords： Bi<sub>2sub>WO<sub>6sub>     Cu doping     work function     photocatalytic N<sub>2sub> fixation     charge    

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Effect of different acid anions on highly efficient Ce-based catalysts for selective catalytic reductionof 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: Three kinds of Ce-based catalysts (CePO<sub>4sub>, CeVO<sub>4sub>, Ce<sub>2sub>(SO<sub>4sub>)The catalytic efficiencies of the three catalysts are as follow: CePO<sub>4sub> > CeVO<sub>4sub>> on NH<sub>3sub>-SCR performances of Ce-based catalysts was systematically investigated by the X-rayFinally, CePO<sub>4sub> and CeVO<sub>4sub> catalysts also exhibited relatively strong tolerance of>2sub> for Ce<sub>2sub>(SO<sub>4sub>)<sub>3sub>.

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

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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 MnFe<sub>2sub>O<sub>4sub> NPs with distinctivesizes and shapes as catalysts for reductive degradation of methylene blue, rhodamine 6G, rhodamine BIt was found that the catalytic activities were dependent on the size and shape of the MnFe<sub>2subFurthermore, the MnFe<sub>2sub>O<sub>4sub> NPs could be readily recovered by a magnet and reusedThe size and shape effects of MnFe<sub>2sub>O<sub>4sub> nanoparticles demonstrated in this work not

Keywords： Dye degradation     MnFe<sub>2sub>O<sub>4sub> nanoparticles     Size and shape-control    

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CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> 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 temperatures

Keywords： Mn promotion     nickel catalysts     CO<sub>2sub> methanation     co-methanation of CO and CO<sub>2sub>    

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Effect of carbon deposition over carbonaceous catalysts on CH

Yongfa ZHANG, Meng ZHANG, Guojie ZHANG, Huirong ZHANG

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 481-485 doi: 10.1007/s11705-010-0523-8

Abstract: An investigation was made using a continuous fixed bed reactor to understand the influence of carbon deposition obtained under different conditions on CH -CO reforming. Thermogravimetry (TG) and X-ray diffraction (XRD) were employed to study the characteristics of carbon deposition. It was found that the carbonaceous catalyst is an efficient catalyst in methane decomposition and CH -CO reforming. The trend of methane decomposition at lower temperatures is similar to that at higher temperatures. The methane conversion is high during the initial of stage of the reaction, and then decays to a relatively fixed value after about 30 min. With temperature increase, the methane decomposition rate increases quickly. The reaction temperature has significant influence on methane decomposition, whereas the carbon deposition does not affect methane decomposition significantly. Different types of carbon deposition were formed at different methane decomposition reaction temperatures. The carbon deposition Type I generated at 900°C has a minor effect on CH -CO reforming and it easily reacts with carbon dioxide, but the carbon deposition Type II generated at 1000°C and 1100°C clearly inhibits CH -CO reforming and it is difficult to react with carbon dioxide. The results of XRD showed that some graphite structures were found in carbon deposition Type II.

Keywords： carbon deposition     carbonaceous catalyst     CH<sub>4sub>-CO<sub>2sub> reforming    

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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 CH<sub>3sub>OH oxidation and alleviates

Keywords： Copper modification     Sb-CeZr<sub>2sub>O<sub>xsub> catalyst     NO<sub>xsub>     Methanol    

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Evaluation of H<sub>2sub> on the Evolution Mechanism of NO<sub>xsub> Storage and Reductionover Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> 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-Al<sub>2sub>O<sub>3sub> catalysts were preparedThe physical and chemical properties of the Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub>catalysts were studied using a combination of characterization techniques, which showed that PtO<sub>xsub>, CeO<sub>2sub>, and BaCO<sub>3sub>, whose peaks were observed in X-ray diffraction>catsub> at 350 °C, which was ascribed to the increase in NO<sub>2sub> yield.

Keywords： Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> catalysts     Physicochemical properties     NO<sub>xsub> storageand reduction     NO<sub>xsub> emission     H<sub>2sub> reductant    

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

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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： Co<sub>3sub>O<sub>4sub>-SnO<sub>2sub>     complete oxidation     methane (CH<sub>4sub>)    

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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 waseffects of temperature and the regeneration process on the structural and textural properties of the catalysts

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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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 catalysts

Keywords： fluid catalytic cracking diesel     hydrofining performance     WMoNiP/Al<sub>2sub>O<sub>3sub>     synergetic    

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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: The characterization of catalysts were thoroughly measured using transmission electron microscopy (TEMResults obtained from the CV may explain the significant catalytic activity of the catalysts.

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

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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 NO<sub>xsub> elimination.

Keywords： Precious metal-loaded (Ce     Zr     La)O<sub>2sub> catalysts     Oxygen mobility     Catalytic performance    

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Title Author Date Type Operation

Characterization and catalytic activity of soft-templated NiO-CeO

Luciano Atzori, Maria Giorgia Cutrufello, Daniela Meloni, Barbara Onida, Delia Gazzoli, Andrea Ardu, Roberto Monaci, Maria Franca Sini, Elisabetta Rombi

Journal Article

Catalytic combustion of methane over a highly active and stable NiO/CeO

Xiuhui Huang, Junfeng Li, Jun Wang, Zeqiu Li, Jiayin Xu

Journal Article

Cu-doped Bi/Bi<sub>2sub>WO<sub>6sub> catalysts for efficient N<sub>2sub> fixation by photocatalysis

Journal Article

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

Journal Article

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

Journal Article

CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

Effect of carbon deposition over carbonaceous catalysts on CH

Yongfa ZHANG, Meng ZHANG, Guojie ZHANG, Huirong ZHANG

Journal Article

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

Journal Article

Evaluation of H<sub>2sub> on the Evolution Mechanism of NO<sub>xsub> Storage and Reductionover Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> Catalysts

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

Journal Article

Characterization and performance of V

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

Journal Article

Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Journal Article

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

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

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

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

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

Journal Article

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

Journal Article