LaFeO3 porous hollow micro-spindles for NO2 sensing
Source abstract
Abstract
LaFeO micro-spindles with intriguing structural characteristics were synthesized using cyano-bridged coordination polymers as sacrificial templates. Within a longitudinal dimension of less than 5 µm, each micro-spindle features a hollow center contained in a mesoporous shell with hexagonal cross section. Conductometric gas sensors developed from these micro-spindles demonstrate a comprehensively improved NO -sensing performance over other-reported LaFeO devices, including lower operating temperature (155 °C), higher sensitivity (response of 81.4% under 5 ppm) and expedited response and recovery (40 s/329 s). Such performance is enabled by a semiconducting mechanism governed by the formation and catalytic dissociation of nitrite species during NO adsorption on LaFeO , facilitated by the special hierarchical structure of the micro-spindle.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Analytical Chemistry and Sensors · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (55)
Show source-provided references
1. Lotus pollen derived 3-dimensional hierarchically porous NiO microspheres for NO2 gas sensing10.1016/j.snb.2015.12.104 ↗
2. Room temperature trace level detection of NO2 gas using SnO2 modified carbon nanotubes based sensor10.1039/c2jm35172b ↗
3. NOx sensors based on semiconducting metal oxide nanostructures: progress and perspectives10.1016/j.snb.2012.05.026 ↗
4. CO2 reforming of methane over supported LaNiO3 perovskite-type oxides10.1016/j.apcatb.2017.09.022 ↗
5. Fabrication of perovskite-type macro/mesoporous La1-xKxFeO3-δ nanotubes as an efficient catalyst for soot combustion10.1016/j.apcatb.2018.05.030 ↗
6. Role of ceria in the improvement of NO removal of lanthanum-based perovskite-type catalysts10.1039/C8RA00456K ↗
7. Cobalt-doped perovskite-type oxide LaMnO3 as bifunctional oxygen catalysts for hybrid lithium–oxygen batteries10.1002/asia.201701561 ↗
8. Perovskite oxides: materials science in catalysis10.1126/science.195.4281.827 ↗
9. Olszewska · J. Mater. Chem. A · 2018 · 6 · 1327110.1039/C8TA03479F ↗
10. Exceptionally high performance anode material based on lattice structure decorated double perovskite Sr2FeMo2/3Mg1/3O6−δ for solid oxide fuel cells10.1002/aenm.201800062 ↗
11. Material discovery and design principles for stable, high activity perovskite cathodes for solid oxide fuel cells10.1002/aenm.201702708 ↗
12. A new family of Mn-based perovskite (La1-xYxMnO3) with improved oxygen electrocatalytic activity for metal-air batteries10.1016/j.energy.2018.04.145 ↗
13. Rapid low-temperature synthesis of perovskite/carbon nanocomposites as superior electrocatalysts for oxygen reduction in Zn-air batteries10.1007/s12274-017-1869-8 ↗
14. Mesoporous La0.6Ca0.4CoO3 perovskites with large surface areas as stable air electrodes for rechargeable Zn–air batteries10.1039/C8TA00426A ↗
15. Mesoporous LaMnO3+δ perovskite from spray−pyrolysis with superior performance for oxygen reduction reaction and Zn−air battery10.1016/j.nanoen.2017.11.018 ↗
16. Colossal magnetoresistance and charge order in La1−xCaxMnO310.1063/1.364538 ↗
17. Preparation, crystal and magnetic structure, and magnetotransport properties of the double perovskite CaCu2.5Mn4.5O1210.1021/cm0212616 ↗
18. Room-temperature magnetoresistance in an oxide material with an ordered double-perovskite structure10.1038/27167 ↗
19. PrFeO3 hollow nanofibers as a highly efficient gas sensor for acetone detection10.1016/j.snb.2017.09.060 ↗
20. Sub-ppb SO2 gas sensor based on NASICON and LaxSm1-xFeO3 sensing electrode10.1016/j.snb.2017.09.194 ↗
21. Highly selective and sensitive methanol gas sensor based on molecular imprinted silver-doped LaFeO3 core–shell and cage structures10.1088/1361-6528/aaabd0 ↗
22. NO2 sensing properties of SmFeO3 porous hollow microspheres10.1016/j.snb.2018.03.073 ↗
23. Preparation and gas sensing characteristics of nanoparticulate p-type semiconducting LnFeO3 and LnCrO3 materials10.1002/adfm.200600454 ↗
24. Gas sensing with semiconducting perovskite oxide LaFeO310.1016/S0921-4526(02)01764-7 ↗
25. Screen-printed perovskite-type thick films as gas sensors for environmental monitoring10.1016/S0925-4005(99)00054-4 ↗
26. Surface morphology-dependent room-temperature LaFeO3 nanostructure thin films as selective NO2 gas sensor prepared by radio frequency magnetron sputtering10.1021/am503318y ↗
27. NO2 sensitive LaFeO3 thin films prepared by r.f. sputtering10.1016/0925-4005(95)85146-1 ↗
28. Honeycomb-like periodic porous LaFeO3 thin film chemiresistors with enhanced gas-sensing performances10.1021/am504386q ↗
29. Single-crystalline LaFeO3 nanotubes with rough tube walls: synthesis and gas-sensing properties10.1088/0957-4484/17/21/034 ↗
30. Preparation of porous LaFeO3 microspheres and their gas-sensing property10.1016/j.apsusc.2015.02.064 ↗
31. Gas sensing with yolk-shell LaFeO3 microspheres prepared by facile hydrothermal synthesis10.1016/j.snb.2017.12.018 ↗
32. Synthesis of three-dimensionally ordered macroporous LaFeO3 with enhanced methanol gas sensing properties10.1016/j.snb.2014.12.046 ↗
33. Ultrasensitive ppb-level NO2 gas sensor based on WO3 hollow nanosphers doped with Fe10.1016/j.apsusc.2017.10.074 ↗
34. Hierarchical flowerlike WO3 nanostructures assembled by porous nanoflakes for enhanced NO gas sensing10.1016/j.snb.2017.02.075 ↗
35. Facile synthesis of Pt-functionalized meso/macroporous SnO2 hollow spheres through in situ templating with SiO2 for H2S sensors10.1021/acsami.8b00901 ↗
36. Controllable synthesis of Ho-doped In2O3 porous nanotubes by electrospinning and their application as an ethanol gas sensor10.1007/s10853-017-1796-9 ↗
37. Fabrication of electrospun LaFeO3 nanotubes via annealing technique for fast ethanol detection10.1016/j.matlet.2017.12.062 ↗
38. Synthesis and formaldehyde sensing performance of LaFeO3 hollow nanospheres10.1016/j.physe.2014.03.018 ↗
39. Synthesis and gas sensing properties of biomorphic LaFeO3 hollow fibers templated from cotton10.1016/j.snb.2010.03.006 ↗
40. Preparation of biomorphic porous LaFeO3 by sorghum straw biotemplate method and its acetone sensing properties10.1016/j.snb.2014.02.006 ↗
41. Bio-templated fabrication of hierarchically porous WO3 microspheres from lotus pollens for NO gas sensing at low temperatures10.1039/C5RA02536B ↗
42. Morphological modulation of urchin-like Zn2SnO4/SnO2 hollow spheres and their applications as photocatalysts and quartz crystal microbalance measurements
43. Preparation and gas-sensing performances of ZnO/CuO rough nanotubular arrays for low-working temperature H2S detection10.1016/j.snb.2017.06.110 ↗
44. Formation of Fe2O3 microboxes with hierarchical shell structures from metal–organic frameworks and their lithium storage properties10.1021/ja307475c ↗
45. Electrospun Ni-doped SnO2 nanofiber array for selective sensing of NO210.1016/j.snb.2017.01.022 ↗
46. Nanometric metal−organic framework of Ln[Fe(CN)6]: morphological analysis and thermal conversion dynamics by direct TEM observation10.1021/jp907180e ↗
47. X-ray photoemission measurements of La1-xCaxCoO3 (x=0, 0.5)10.1103/PhysRevB.54.14938 ↗
48. Highly sensitive and selective gas sensors using p-type oxide semiconductors: overview10.1016/j.snb.2013.11.005 ↗
49. Detecting low concentration of H2S gas by BaTiO3 nanoparticle-based sensors10.1016/j.snb.2016.06.172 ↗
50. SnO2 nanoribbons as NO2 sensors: insights from first principles calculations10.1021/nl034235v ↗
51. The NO2 response of solid electrolyte sensors made using nano-sized LaFeO3 electrodes10.1016/S0925-4005(01)00594-9 ↗
52. NOx adsorption behavior of LaFeO3 and LaMnO3+δ and its influence on potentiometric sensor response10.1016/j.snb.2011.05.060 ↗
53. Low-temperature-programmed replacement of nitrogen by hydrogen in pores of mordenite10.1021/jp026585w ↗
54. Conduction model of metal oxide gas sensors10.1023/A:1014405811371 ↗
55. Vitamin C-assisted synthesis and gas sensing properties of coaxial In2O3 nanorod bundles10.1016/j.snb.2015.05.038 ↗