Development of enhanced surface area LaFeO3 perovskites using amino acids as templating agents
Source abstract
Abstract
Abstract In this article LaFeO 3 perovskites of enhanced specific surface area (ssa) have been developed through a soft templating path which involves amino acids as capping agents of primary particles, in order to suppress aggregating effects, and polymer P123 as a surface enhancing agent. The treatment of the primary LaFeO 3 particles took place using the amino acids β-alanine, serine, tyrosine and threonine and the final surface area increased from 18 up to 42⿿59 m 2 /g, depending on the amino acid. The obtained material showed also a remarkable red shift band gap. The main factor affecting the development of ssa seems to be the interactions between the solid particles and the amphiphilic molecules, which in turn are controlled by the Accessible surface area and the Hydropathy Index of side chain as well as the solubility of amino acid.
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OpenAlex topics: Advanced Photocatalysis Techniques · Electrocatalysts for Energy Conversion · Gas Sensing Nanomaterials and Sensors
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References (42)
Show source-provided references
1. Preparation, characterization and investigation of catalytic activity for NO+CO reaction of LaMnO3 and LaFeO3 perovskites prepared via microemulsion method10.1016/j.apcatb.2003.12.002 ↗
2. Fabrication of nanocrystalline LaFeO3: an efficient sol-gel auto-combustion assisted visible light responsive photocatalyst for water decomposition10.1016/j.ijhydene.2010.08.029 ↗
3. La1-xSrxCo1-yFeyO3-δ perovskites: preparation, characterization and solar photocatalytic activity10.1016/j.apcatb.2014.09.014 ↗
4. Methane combustion on La⿿Sr⿿Ce⿿Fe⿿O mixed oxides: bifunctional synergistic action of SrFeO3-x and CeOx phases10.1016/S0926-3373(00)00279-4 ↗
5. Voorhoeve · 1977 · 129
6. Twu · 1993
7. Oxide nanomaterials for the catalytic combustion of hydrocarbons
8. Perovskites: Structure, Properties and Uses
9. Müller · 2010
10. Chemical Structures and Performance of Perovskite Oxides10.1021/cr980129f ↗
11. Total oxidation of hydrocarbons on perovskite oxides10.1080/01614949208016313 ↗
12. The perovskite structure⿿a review of its role in ceramic science and technology10.1007/s100190000062 ↗
13. Perovskites and thin films⿿crystallography and chemistry10.1088/0953-8984/20/26/264001 ↗
14. Perovskite oxides materials science in catalysis10.1126/science.195.4281.827 ↗
15. Thomas · 1997
16. A Comparative study of Substituted Perovskite-type solids of Oxidic La1-xSrxFeO3±δ and Chlorinated La1-xSrxFeO3±δ ClϿ Form. Catalytic Performance for CH4 Oxidation by O2 or N2O10.1016/j.jcat.2007.07.012 ↗
17. Microwave-assisted synthesis of nanoparticulate perovskite LaFeO3 as a high active visible-light photocatalyst10.1016/j.cap.2012.08.006 ↗
18. A simple and efficient preparation of LaFeO3 nanopowders by glycine⿿nitrate process: effect of glycine concentration10.1016/j.ceramint.2011.07.026 ↗
19. LaFeO3 perovskite-type oxide prepared by oxide-mixing, co-precipitation and complex synthesis methods10.1023/A:1012526018348 ↗
20. Sol⿿gel nanocasting synthesis of patterned hierarchical LaFeO3 fibers with enhanced catalytic CO oxidation activity10.1039/c0nr00760a ↗
21. Perovskite-type oxides synthesized by reactive grinding: Part I. preparation and characterization10.1016/S0926-860X(00)00779-1 ↗
22. Perovskite⿿type oxides synthesized by reactive grinding, Part III: catalytic properties of LaCo1-xFexO3 in VOC oxidation10.1016/S0926-3373(02)00239-4 ↗
23. On the mechanism of oxidative degradation of rhodamine B over LaFeO3 catalysts supported on silica materials: role of support10.1016/j.micromeso.2015.09.034 ↗
24. Efficient encapsulation of LaCoO3 perovskite in mesoporous silica induced by a chelating template10.1016/j.micromeso.2015.09.007 ↗
25. Templated assembly of BiFeO3 nanocrystals into 3D mesoporous networks for catalytic applications10.1039/C5NR00185D ↗
26. Controllable synthesis of mesoporous iron oxide nanoparticle assemblies for chemoselective catalytic reduction of nitroarenes10.1002/chem.201504685 ↗
27. Influence of Pr and Ce in dry methane reforming catalysts produced from La1-xAxNiO3-δ perovskites10.1016/j.apcata.2009.09.004 ↗
28. Effects of PVA content on the synthesis of LaFeO3 via sol-gel route10.1016/j.ceramint.2010.11.045 ↗
29. Solvothermal synthesis and characterization of mixed oxides with perovskite-like structure10.1016/j.cattod.2015.03.029 ↗
30. On a theory of the van der Waals adsorption of gases10.1021/ja01864a025 ↗
31. Adsorption by powders and porous solids
32. A novel method for estimating the C-values of the BET equation in the whole range 0< P/Po<1 using a Scatchard-type treatment of it10.1016/j.micromeso.2004.01.009 ↗
33. The BET equation, the inflection points of N2 adsorption isotherms and the estimation of specific surface area of porous solids10.1016/j.micromeso.2011.11.005 ↗
34. The interpretation of protein structures: estimation of static accessibility10.1016/0022-2836(71)90324-X ↗
35. Environment and exposure to solvent of protein atoms. Lysozyme and insulin10.1016/0022-2836(73)90011-9 ↗
36. A simple method for displaying the hydropathic character of a protein10.1016/0022-2836(82)90515-0 ↗
37. Synthesis and anomalous magnetic properties of LaFeO3 nanoparticles by hot soap method10.1016/j.matchemphys.2011.05.015 ↗
38. Thermal evolution of nanosized LaFeO3 powders from a heteronuclear complex, La[Fe(CN)6]·nH2O10.1016/S0925-8388(98)00602-1 ↗
39. Photoinduced charge property of nanosized perovskite-type LaFeO3 and its relationships with photocatalytic activity under visible irradiation10.1016/j.materresbull.2006.06.010 ↗
40. Synthesis and characterization of nano-LaFeO3 powders by a soft-chemistry method and corresponding ceramics10.1016/j.ssi.2012.10.017 ↗
41. Catalytic properties of stoichiometric and non-stoichiometric LaFeO3 perovskite for total oxidation of methane10.1016/S0254-0584(01)00498-9 ↗
42. Synthesis and gas sensing properties of biomorphic LaFeO3 hollow fibers templated from cotton10.1016/j.snb.2010.03.006 ↗