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On the monolayer dispersion behavior of Co<sub>3sub>O<sub>4sub> 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, 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 dispersionreaction performance. 4% Co<sub>3sub>O<sub>4sub>/ZSM-5, the catalyst close to the monolayer dispersionIt is proposed the optimal Co<sub>3sub>O<sub>4sub>/ZSM-5 catalyst can be prepared by loading thecapacity 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    

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    

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>    

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    

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(XRD) spectra, dispersed well on the γ-Al2O3, as shown by transmission electron microscope (TEM

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    

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>)> Ce<sub>2sub>(SO<sub>4sub>)<sub>3sub>, which is in agreement with their abilities of NH<sub>3sub>4sub>3, VO<sub>4sub>3 and SO<sub>4sub>2 on NH<sub>3sub>-SCR performances of Ce-based catalysts was systematically investigated by the X-ray>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    

Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>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: The stability of both catalysts as a function of time on stream was studied and the influence of the

Keywords: Rh<sub>2sub>O<sub>3sub>     CePO<sub>4sub>     N<sub>2sub>O decomposition    

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: >2sub>WO<sub>6sub> composite.The doped Cu had a valence state of +2 and most likely substituted the position of Bi3+.>2sub>WO<sub>6sub>.The optimized NH<sub>3sub> generation rates of Bi/Cu-Bi<sub>2sub>WO<sub>6sub> reached 624 and 243>2sub>-to-NH<sub>3sub> conversion.

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

The stabilization effect of Al<sub>2sub>O<sub>3sub> on unconventional Pb/SiO<sub>2sub> catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1423-1429 doi: 10.1007/s11705-023-2315-y

Abstract: To enhance the stability, the traditional carrier Al<sub>2sub>O<sub>3sub> with a small amount, wasintroduced into Pb/SiO<sub>2sub> catalyst in this study.It has been proved that Al<sub>2sub>O<sub>3sub> can inhibit the reduction of PbO, and weaken theAs a result, 3Al15Pb/SiO<sub>2sub> catalyst exhibits a much higher stability up to more than 150 h.>2sub>O<sub>3sub> addition was also proposed.

Keywords: Pb/SiO<sub>2sub>     Al<sub>2sub>O<sub>3sub>     propane dehydrogenation     propene     stability    

Chemical deactivation of V

Xiaodong WU, Wenchao YU, Zhichun SI, Duan WENG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 420-427 doi: 10.1007/s11783-013-0489-0

Abstract: The catalysts were characterized by X-ray diffraction (XRD), inductively coupled plasma (ICP), N physisorptionnsted acidity of catalysts and decrease the stability of Br?nsted acid sites significantly.

Keywords: V<sub>2sub>O<sub>5sub>-WO<sub>3sub>/TiO<sub>2sub>     potassium chloride     poisoning     reducibility     acid    

Al<sub>2sub>O<sub>3sub> and CeO<sub>2sub>-promoted MgO sorbents for CO<sub>2sub> capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 83-93 doi: 10.1007/s11705-017-1691-6

Abstract: A series of Al O and CeO modified MgO sorbents was prepared and studied for CO sorption at moderate temperatures. The CO sorption capacity of MgO was enhanced with the addition of either Al O or CeO . Over Al O -MgO sorbents, the best capacity of 24.6 mg-CO /g-sorbent was attained at 100 °C, which was 61% higher than that of MgO (15.3 mg-CO /g-sorbent). The highest capacity of 35.3 mg-CO /g-sorbent was obtained over the CeO -MgO sorbents at the optimal temperature of 200 °C. Combining with the characterization results, we conclude that the promotion effect on CO sorption with the addition of Al O and CeO can be attributed to the increased surface area with reduced MgO crystallite size. Moreover, the addition of CeO increased the basicity of MgO phase, resulting in more increase in the CO capacity than Al O promoter. Both the Al O -MgO and CeO -MgO sorbents exhibited better cyclic stability than MgO over the course of fifteen CO sorption-desorption cycles. Compared to Al O , CeO is more effective for promoting the CO capacity of MgO. To enhance the CO capacity of MgO sorbent, increasing the basicity is more effective than the increase in the surface area.

Keywords: CO<sub>2sub> capture     MgO sorbents     Al<sub>2sub>O<sub>3sub>     CeO<sub>2sub>     flue gas    

Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr<sub>2sub>O<sub>3sub> Systemwith Al<sub>2sub>O<sub>3sub> and Cr<sub>2sub>O<sub>3sub> Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Strategic Study of CAE 2004, Volume 6, Issue 6,   Pages 63-67

Abstract:

The thermodynamic calculation and analysis of combustion synthesis reaction of Al - Cr<sub>2</sub>O<sub>3</sub> system with AI<sub>2</sub>O<sub>3</sub>and Cr<sub>2</sub>O<sub>3</sub> diluents were conducted, and the effects of reactionstarting temperature T<sub>O</sub>, diluents AI<sub>2</sub>O<sub>3</sub> and Cr<sub>2</sub>O<sub>3</sub> on the adiabatic combustion temperature

Keywords: cermet     combustion synthesis     Al - Cr<sub>2sub>O<sub>3sub> system     thermodynamics     reaction model    

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>)    

In-MOF-derived In<sub>2sub>S<sub>3sub>/Bi<sub>2sub>S<sub>3sub> heterojunction for enhanced photocatalytic

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 654-663 doi: 10.1007/s11708-023-0885-5

Abstract: In this paper, a broad spectrum responsive In<sub>2sub>S<sub>3sub>/Bi<sub>2sub>S<sub>3sub> heterojunctionis constructed by in-situ integrating Bi<sub>2sub>S<sub>3sub> with the In<sub>2sub>S<sub>2sub>S<sub>3sub>/Bi<sub>2sub>S<sub>3sub> heterojunction demonstrates a rate of 0.71 mmol/(g∙h), which is 2.2 and 1.7 times as much as those of In<sub>2sub>S<sub>3sub> (0.32 mmol/(g∙h) and Bi<sub>2sub>S<sub>3sub> (0.41 mmol/(g∙h)), respectively.

Keywords: photocatalytic hydrogen production     wide-spectrum response     metal sulfides     MOFs derivative     heterogeneous interfacial contact    

Effect of SiO

Qian WANG, Lei WANG, Hui WANG, Zengxi LI, Xiangping ZHANG, Suojiang ZHANG, Kebin ZHOU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 79-88 doi: 10.1007/s11705-010-0550-5

Abstract: diameter of SAPO-34 as well as HZSM-5 increase with SiO /Al O ratio.The variation of BET surface area of SAPO-34 is different from that of HZSM-5 and the sample with SiOFT-IR spectra indicate that HZSM-5 has both Br?nsted and Lewis acid sites and Br?ratio increases, propylene and butylenes become the predominant product of the MTO reaction over HZSM-5.According to the product distribution, the reaction mechanism over HZSM-5 catalysts is proposed.

Keywords: HZSM-5     SAPO-34     methanol-to-olefin (MTO)     SiO<sub>2sub>/Al<sub>2sub>O<sub>3sub> ratio    

Title Author Date Type Operation

On the monolayer dispersion behavior of Co<sub>3sub>O<sub>4sub> on HZSM-5 support: designing applicablecatalysts for selective catalytic reduction of nitrogen oxides by ammonia

Journal Article

Characterization and performance of V

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

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

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

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

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

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

Journal Article

Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>O decomposition

Huan Liu, Zhen Ma

Journal Article

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

Journal Article

The stabilization effect of Al<sub>2sub>O<sub>3sub> on unconventional Pb/SiO<sub>2sub> catalyst

Journal Article

Chemical deactivation of V

Xiaodong WU, Wenchao YU, Zhichun SI, Duan WENG

Journal Article

Al<sub>2sub>O<sub>3sub> and CeO<sub>2sub>-promoted MgO sorbents for CO<sub>2sub> capture at moderate

Huimei Yu, Xiaoxing Wang, Zhu Shu, Mamoru Fujii, Chunshan Song

Journal Article

Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr<sub>2sub>O<sub>3sub> Systemwith Al<sub>2sub>O<sub>3sub> and Cr<sub>2sub>O<sub>3sub> Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Journal Article

Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Journal Article

In-MOF-derived In<sub>2sub>S<sub>3sub>/Bi<sub>2sub>S<sub>3sub> heterojunction for enhanced photocatalytic

Journal Article

Effect of SiO

Qian WANG, Lei WANG, Hui WANG, Zengxi LI, Xiangping ZHANG, Suojiang ZHANG, Kebin ZHOU

Journal Article