51
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Redenius JM, Schmidt LD, Deutschmann O. Millisecond catalytic wall reactors: I. Radiant burner. AIChE J 2006. [DOI: 10.1002/aic.690470523] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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52
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Park YK, Bui PA, Vlachos DG. Operation regimes in catalytic combustion: H2/air mixtures near Pt. AIChE J 2006. [DOI: 10.1002/aic.690440911] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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53
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Demoulin O, Rupprechter G, Seunier I, Le Clef B, Navez M, Ruiz P. Investigation of Parameters Influencing the Activation of a Pd/γ-Alumina Catalyst during Methane Combustion. J Phys Chem B 2005; 109:20454-62. [PMID: 16853647 DOI: 10.1021/jp051874g] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The progressive activation of a Pd(2 wt %)/gamma-alumina catalyst under the reaction conditions of catalytic combustion of methane (CCM) was studied. The reasons of this activation were investigated by XPS, CO-chemisorption, and HR-TEM. The removal of carbon from the surface cannot explain the observed activation process. Sintering of the palladium particles was detected but this parameter alone does not fully explain the activation process of the catalyst. HR-TEM imaging evidences (i) that PdO is present both in the fresh and the active catalyst and (ii) that the PdO nanoparticles sinter and restructure (surface roughening) during the reaction. Development of preferential faces was not observed. It is suggested that this restructuring may be responsible for the activation process by facilitating the formation of an active oxygen layer on the PdO surface. CCM on Pd/gamma-Al(2)O(3) depends on the thermal history of the catalyst and is a structure-sensitive reaction.
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Affiliation(s)
- O Demoulin
- Unité de catalyse et chimie des matériaux divisés, Université catholique de Louvain, Croix du Sud 2/17, B-1348 Louvain-la-Neuve, Belgium.
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54
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Yue B, Zhou R, Wang Y, Zheng X. Study of the methane combustion and TPR/TPO properties of Pd/Ce–Zr–M/Al2O3 catalysts with M=Mg, Ca, Sr, Ba. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcata.2005.05.027] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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55
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Jiang Z, Hao Z, Yu J, Hou H, Hu C, Su J. Catalytic combustion of methane on novel catalysts derived from Cu-Mg/Al-hydrotalcites. Catal Letters 2005. [DOI: 10.1007/s10562-005-2108-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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56
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McCarty JG, Malukhin G, Poojary DM, Datye AK, Xu Q. Thermal Coarsening of Supported Palladium Combustion Catalysts. J Phys Chem B 2004; 109:2387-91. [PMID: 16851233 DOI: 10.1021/jp048822w] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An essential property of combustion catalysts is long-term (>8000 h) stability at high temperatures in an environment (approximately 1 atm of both oxygen and water vapor) that aggressively promotes sintering of the supporting oxide and coarsening of the active component. Extrapolation of accelerated coarsening rate measurements, determined from shorter exposures at higher temperatures, can be made with more confidence if the physical processes of the coarsening and sintering processes were well understood. The current work examines in detail the coarsening of a high-weight-loaded palladium catalyst supported by silica-stabilized alumina at 900 degrees C in such an aggressive environment. The results of this investigation showed that the Pd particle size distribution was consistently log-normal for time periods from 100 to 4000 h, the mean particle growth rate was roughly inverse second-order in mean particle diameter, and the support not only sintered but also underwent phase transformation. The results implicate both coalescence and Ostwald ripening as important coarsening processes.
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Affiliation(s)
- J G McCarty
- Catalytica Energy Systems, Inc., Mountain View, California 94043, USA
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57
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Cho SJ, Kang SK. Structural transformation of PdPt nanoparticles probed with X-ray absorption near edge structure. Catal Today 2004. [DOI: 10.1016/j.cattod.2004.06.106] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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58
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High throughput experimentation applied to the combustion of methane and a comparison with conventional micro-reactor measurements. Catal Today 2004. [DOI: 10.1016/j.cattod.2004.03.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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59
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Synthesis of nano-sized BaAl12O19 via nonionic reverse microemulsion method: I. Effect of the microemulsion structure on the paticle morphology. STUDIES IN SURFACE SCIENCE AND CATALYSIS 2004. [DOI: 10.1016/s0167-2991(04)80100-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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60
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Xu J, Tian Z, Xu Y, Xu Z, Lin L. Reverse microemulsion synthesis of Mn-substituted barium hexaaluminate (BaMnAl11O19−α) catalysts for catalytic combustion of methane. STUDIES IN SURFACE SCIENCE AND CATALYSIS 2004. [DOI: 10.1016/s0167-2991(04)80098-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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61
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62
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Sohn JM, Kim MR, Woo SI. The catalytic activity and surface characterization of Ln2B2O7 (Ln=Sm, Eu, Gd and Tb; B=Ti or Zr) with pyrochlore structure as novel CH4 combustion catalyst. Catal Today 2003. [DOI: 10.1016/s0920-5861(03)00249-9] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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63
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Wang J, Tian Z, Xu J, Xu Y, Xu Z, Lin L. Preparation of Mn substituted La-hexaaluminate catalysts by using supercritical drying. Catal Today 2003. [DOI: 10.1016/s0920-5861(03)00238-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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64
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65
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High temperature catalytic combustion of methane and propane over hexaaluminate catalysts: NOx emission characteristics. Catal Today 2003. [DOI: 10.1016/s0920-5861(03)00242-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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66
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67
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Kajita S, Dalla Betta R. Achieving ultra low emissions in a commercial 1.4 MW gas turbine utilizing catalytic combustion. Catal Today 2003. [DOI: 10.1016/s0920-5861(03)00248-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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68
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69
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Lyubovsky M, Karim H, Menacherry P, Boorse S, LaPierre R, Pfefferle WC, Roychoudhury S. Complete and partial catalytic oxidation of methane over substrates with enhanced transport properties. Catal Today 2003. [DOI: 10.1016/s0920-5861(03)00231-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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70
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Lyubovsky M, Smith LL, Castaldi M, Karim H, Nentwick B, Etemad S, LaPierre R, Pfefferle WC. Catalytic combustion over platinum group catalysts: fuel-lean versus fuel-rich operation. Catal Today 2003. [DOI: 10.1016/s0920-5861(03)00217-7] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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71
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Rosso II, Saracco G, Specchia V. Tackling the problem of sulfur poisoning of perovskite catalysts for natural gas combustion. KOREAN J CHEM ENG 2003. [DOI: 10.1007/bf02697232] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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72
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Ciuparu D, Lyubovsky MR, Altman E, Pfefferle LD, Datye A. CATALYTIC COMBUSTION OF METHANE OVER PALLADIUM-BASED CATALYSTS. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2002. [DOI: 10.1081/cr-120015482] [Citation(s) in RCA: 466] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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73
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Klvana D, Song KS, Kirchnerova J. Catalytic performance of La0.66Sr0.34Co0.2Fe0.8O3 perovskite in propane combustion: Effect of preparation and specific surface area. KOREAN J CHEM ENG 2002. [DOI: 10.1007/bf02707214] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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74
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Preparation and characterisation of activated Ni (Mn)/Mg/Al hydrotalcites for combustion catalysis. Catal Today 2002. [DOI: 10.1016/s0920-5861(02)00203-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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75
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Sohn JM, Kang SK, Woo SI. Catalytic properties and characterization of Pd supported on hexaaluminate in high temperature combustion. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1381-1169(02)00067-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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76
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77
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Thevenin P, Pocoroba E, Pettersson L, Karhu H, Väyrynen I, Järås S. Characterization and Activity of Supported Palladium Combustion Catalysts. J Catal 2002. [DOI: 10.1006/jcat.2002.3515] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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78
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79
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Xiao TC, Ji SF, Wang HT, Coleman KS, Green ML. Methane combustion over supported cobalt catalysts. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1381-1169(01)00205-9] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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80
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81
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Hayes RE, Kolaczkowski ST, Li PK, Awdry S. The palladium catalysed oxidation of methane: reaction kinetics and the effect of diffusion barriers. Chem Eng Sci 2001. [DOI: 10.1016/s0009-2509(01)00131-2] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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82
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Cominos V, Gavriilidis A. Theoretical investigation of axially non-uniform catalytic monoliths for methane combustion. Chem Eng Sci 2001. [DOI: 10.1016/s0009-2509(01)00031-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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83
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84
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Martinez-Ortega F, Batiot-Dupeyrat C, Valderrama G, Tatibouët JM. Methane catalytic combustion on La-based perovskite catalysts. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1387-1609(00)01202-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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85
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Influence of the Metallic Precursor and of the Catalytic Reaction on the Activity and Evolution of Pt(Cl)/δ-Al2O3 Catalysts in the Total Oxidation of Methane. J Catal 2001. [DOI: 10.1006/jcat.2000.3078] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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86
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87
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88
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OYAMA STED. Chemical and Catalytic Properties of Ozone. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2000. [DOI: 10.1081/cr-100100263] [Citation(s) in RCA: 246] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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89
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Cho SJ, Kang SK. Reversible Structural Transformation of Palladium Catalyst Supported on La−Al2O3 Probed with X-ray Absorption Fine Structure. J Phys Chem B 2000. [DOI: 10.1021/jp991857p] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sung June Cho
- Catalytic Combustion Research Team, Korea Institute of Energy Research, 71-2, Jang-dong, Yusung-gu, Taejon 305-343, Korea
| | - Sung Kyu Kang
- Catalytic Combustion Research Team, Korea Institute of Energy Research, 71-2, Jang-dong, Yusung-gu, Taejon 305-343, Korea
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90
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Sekizawa K, Widjaja H, Maeda S, Ozawa Y, Eguchi K. Low temperature oxidation of methane over Pd catalyst supported on metal oxides. Catal Today 2000. [DOI: 10.1016/s0920-5861(00)00273-x] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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91
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Chae HJ, Choo ST, Choi H, Nam IS, Yang HS, Song SL. Direct Use of Kinetic Parameters for Modeling and Simulation of a Selective Catalytic Reduction Process. Ind Eng Chem Res 2000. [DOI: 10.1021/ie9907270] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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92
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93
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Reverse microemulsion synthesis of nanostructured complex oxides for catalytic combustion. Nature 2000; 403:65-7. [PMID: 10638751 DOI: 10.1038/47450] [Citation(s) in RCA: 451] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Catalysts play an important role in many industrial processes, but their use in high-temperature applications-such as energy generation through natural gas combustion, steam reforming and the partial oxidation of hydrocarbons to produce feedstock chemicals--is problematic. The need for catalytic materials that remain stable and active over long periods at high operation temperatures, often in the presence of deactivating or even poisoning compounds, presents a challenge. For example, catalytic methane combustion, which generates power with reduced greenhouse-gas and nitrogen-oxide emissions, is limited by the availability of catalysts that are sufficiently active at low temperatures for start-up and are then able to sustain activity and mechanical integrity at flame temperatures as high as 1,300 degrees C. Here we use sol-gel processing in reverse microemulsions to produce discrete barium hexa-aluminate nanoparticles that display excellent methane combustion activity, owing to their high surface area, high thermal stability and the ultrahigh dispersion of cerium oxide on the their surfaces. Our synthesis method provides a general route to the production of a wide range of thermally stable nanostructured composite materials with large surface-to-volume ratios and an ultrahigh component dispersion that gives rise to synergistic chemical and electronic effects, thus paving the way to the development of catalysts suitable for high-temperature industrial applications.
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94
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Ismagilov Z, Kerzhentsev M, Shkrabina R, Tsikoza L, Lunyushkin B, Ostrovski Y, Kostin A, Abroskin I, Malyi Y, Matyukha V, Adamson M, Heywood A, Zundelevich Y, Ismagilov I, Babko-Malyi S, Battleson D. A role of catalysis for the destruction of waste from the nuclear industry. Catal Today 2000. [DOI: 10.1016/s0920-5861(99)00223-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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95
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96
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Klvana D, Kirchnerová J, Tofan C. Catalytic decomposition of nitric oxide by perovskites. KOREAN J CHEM ENG 1999. [DOI: 10.1007/bf02698270] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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97
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98
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99
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100
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Magnus Johansson E, Järås SG. Circumventing fuel-NOx formation in catalytic combustion of gasified biomass. Catal Today 1999. [DOI: 10.1016/s0920-5861(98)00318-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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