Room-temperature CO oxidation over calcined Pd–Cu/palygorskite catalysts
Source abstract
Abstract
Abstract Pd–Cu/palygorskite catalysts without calcination (U-PdCu/Pal) and with calcination (C-PdCu/Pal) were prepared via an impregnation method. These catalysts' catalytic performances for CO oxidation were studied. CO conversion can reach 100% at room temperature under conditions of 0.5 vol.% CO and 3.3 vol.% H 2 O in the feed gas over C-PdCu/Pal, which is considerably higher than that over U-PdCu/Pal. The XRD results suggest that the Cu species exists as a Cu(OH)Cl phase with a crystallite size of approximately 30 nm on U-PdCu/Pal, while the crystallite size of the Cu(OH)Cl phase on C-PdCu/Pal is significantly smaller. The results of TPR and IR indicate that there is an enhanced interaction resulting from the calcination, which promotes the reduction of C-PdCu/Pal and enhances the catalytic activity.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Catalysts for Methane Reforming · Catalysis and Oxidation Reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. CuO catalysts supported on attapulgite clay for low-temperature CO oxidation10.1016/j.catcom.2008.07.016 ↗
2. Synthesis and characterization of a microfibrous TiO2–CdS/palygorskite nanostructured material with enhanced visible-light photocatalytic activity10.1016/j.clay.2013.11.031 ↗
3. The structure of catalytically active Au on titania10.1126/science.1102420 ↗
4. Realization of a highly effective Pd–Cu–Clx/Al2O3 catalyst for low temperature CO oxidation by pre-synthesizing the active copper phase of Cu2(OH)3Cl10.1039/C5CY00545K ↗
5. Abatement of CO from relatively simple and complex mixtures: II. oxidation on Pd–Cu/C catalysts10.1016/S0926-3373(03)00167-X ↗
6. Low-temperature oxidation of carbon monoxide with gold(III) ions supported on titanium oxide10.1002/anie.201308206 ↗
7. Mixed alcohols synthesis from syngas over activated palygorskite supported Cu–Fe–Co based catalysts10.1016/j.clay.2015.03.009 ↗
8. Insight into the nature of Au–Au2O3 functionalized palygorskite10.1016/j.clay.2014.04.004 ↗
9. Au nanoparticles assembled on palygorskite: enhanced catalytic property and Au–Au2O3 coexistence10.1016/j.molcata.2013.08.024 ↗
10. Effect of CeO2 doping on structure and catalytic performance of Co3O4 catalyst for low-temperature CO oxidation10.1007/s10562-008-9426-4 ↗
11. Synthesis and characterization of ZnO/palygorskite10.1016/j.clay.2010.08.028 ↗
12. Very low temperature CO oxidation over colloidally deposited gold nanoparticles on Mg(OH)2 and MgO10.1021/ja909351e ↗
13. Preparation and catalytic properties of sulfonated carbon–palygorskite solid acid catalyst10.1016/j.clay.2014.04.020 ↗
14. Facile synthesis of Co3O4@CNT with high catalytic activity for CO oxidation under moisture-rich conditions10.1021/am501815d ↗
15. Process development for low temperature CO oxidation in the presence of water and halogen compounds10.1016/S0920-5861(99)00168-6 ↗
16. Effect of rehydration on structure and surface properties of thermally treated palygorskite10.1016/j.jcis.2012.10.062 ↗
17. Palygorskite–TiO2 nanocomposites: part 2. photocatalytic activities indecomposing air and organic pollutants10.1016/j.clay.2012.03.003 ↗
18. Effect of surface treatment of the support on CO oxidation over carbon-supported Wacker-type catalysts10.1006/jcat.2000.2879 ↗
19. Supported copper-ceria catalysts for low temperature CO oxidation10.1016/j.catcom.2010.03.009 ↗
20. Catalytic oxidation of carbon monoxide over transition metal oxides10.1002/cctc.201000378 ↗
21. Schryer · 1991 · 130 · 314
22. The stability and deactivation of Pd–Cu–Clx/Al2O3 catalyst for low temperature CO oxidation: an effect of moisture10.1039/c1cy00146a ↗
23. A synthesis of high-efficiency Pd–Cu–Clx/Al2O3 catalyst for low temperature CO oxidation10.1039/c0cc02776f ↗
24. Pd–palygorskite catalysts: preparation, characterization and catalytic performance for the oxidation of styrene10.1016/j.clay.2014.12.007 ↗
25. Low temperature CO catalytic oxidation over supported Pd–Cu catalysts calcined at different temperatures10.1016/j.cej.2013.12.065 ↗
26. Effect of surface properties of activated carbon on CO oxidation over supported Wacker-type catalysts10.1016/j.cattod.2010.02.067 ↗
27. Effect of preparation method on the catalytic activities of Pd–Cu/APT catalysts for low-temperature CO oxidation10.1007/s10562-015-1536-1 ↗
28. Uniform Cu2Cl(OH)3 hierarchical microspheres: a novel adsorbent for methylene blue adsorptive removal from aqueous solution10.1016/j.jssc.2013.06.009 ↗
29. Fourier transform infrared spectroscopy analysis for hydrothermal transformation of microcrystalline cellulose on montmorillonite10.1016/j.clay.2014.03.014 ↗
30. Synthesis of clay/carbon adsorbent through hydrothermal carbonization of cellulose on palygorskite10.1016/j.clay.2014.03.010 ↗
31. Low-temperature oxidation of CO catalysed by Co3O4 nanorods10.1038/nature07877 ↗
32. FTIR spectroscopy study of the structure changes of palygorskite under heating10.1016/j.saa.2012.07.085 ↗
33. From natural attapulgite to mesoporous materials: methodology, characterization and structural evolution10.1021/jp911516b ↗
34. The design and preparation of planar models of oxidation catalysts: I. Hopcalite10.1016/0021-9517(88)90256-4 ↗
35. Supported Au catalysts prepared from Au phosphine complexes and as-precipitated metal hydroxides: characterization and low-temperature CO oxidation10.1006/jcat.1997.1752 ↗
36. Preparation and catalytic properties of sulfonated carbon–palygorskite solid acid catalyst10.1016/j.clay.2014.04.020 ↗
37. Effect of treatment temperature on the crystal structure of activated carbon supported CuCl2–PdCl2 catalysts in the oxidative carbonylation of ethanol to diethyl carbonate10.1016/j.molcata.2006.11.009 ↗
38. Effects of solvothermal process on the physicochemical and adsorption characteristics of palygorskite10.1016/j.clay.2015.02.004 ↗
39. An overview on strategies towards clay-based designer catalysts for green and sustainable catalysis
40. Fundamental and applied research on clay minerals: from climate and environment to nanotechnology10.1016/j.clay.2013.02.013 ↗
41. Novel polyamidoamine dendrimer-functionalized palygorskite adsorbents with high adsorption capacity for Pb2+ and reactive dyes10.1016/j.clay.2015.01.032 ↗
42. Activity and deactivation of Au/Al2O3 catalyst for low-temperature CO oxidation10.1016/j.catcom.2006.08.024 ↗