Facile synthesis of PdO/SnO2/CuO nanocomposite with enhanced carbon monoxide gas sensing performance at low operating temperature
Source abstract
Abstract
Abstract This study describes a facile strategy for the synthesis of palladium oxide (PdO)/tin oxide (SnO2)/ cupric oxide (CuO) nanocomposite with different PdO contents and their application as carbon monoxide (CO) sensing materials. The structure, surface composition and morphology of the materials were scrutinized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray spectroscopy. The gas sensing properties of all sensors were investigated by exposing them to various concentration of CO gas ranging from 100 to 2000 ppm. The results revealed that the 7%PdO/SnO2/CuO sensor had enhanced sensing response toward CO gas with the appreciable response and recovery times, wide detection range, high repeatability and long-term stability at a low operating temperature of 200 °C. Such improved gas sensing performance could be attributed to the catalytic effect of PdO nanoparticles as well as the formation of SnO2/CuO heterojunction.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · ZnO doping and properties · Advanced Chemical Sensor Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
Show source-provided references
1. Carson · 2002
2. Function and applications of gas sensors10.1088/0022-3727/34/19/201 ↗
3. Metal oxide semi-conductor gas sensors in environmental monitoring10.3390/s100605469 ↗
4. Hydrothermal synthesis and gas-sensing properties of ultrathin hexagonal ZnO nanosheets10.1016/j.ceramint.2013.07.150 ↗
5. A novel hydrogen sulfide gas sensor apply in tunnel construction10.1166/sam.2019.3441 ↗
6. A novel gas sensor applied in detection of hydrogen sulfide during tunnel excavation10.1166/jno.2019.2543 ↗
7. Hydrothermal synthesis of hierarchical flower-like SnO2 nanostructures with enhanced ethanol gas sensing properties10.1016/j.materresbull.2014.05.019 ↗
8. Effects of different petal thickness on gas sensing properties of flower-like WO3·H2O hierarchical architectures10.1016/j.apsusc.2015.04.060 ↗
9. New insight into gas sensing performance of nanorods assembled and nanosheets assembled hierarchical WO3·H2O structures10.1016/j.matlet.2018.10.012 ↗
10. Assembly of 2D nanosheets into 3D flower-like NiO: synthesis and the influence of petal thickness on gas-sensing properties10.1016/j.ceramint.2015.11.150 ↗
11. SnO2 highly sensitive CO gas sensor based on quasi-molecular-imprinting mechanism design10.3390/s150203789 ↗
12. Facile synthesis of hierarchical SnO2 semiconductor microspheres for gas sensor application10.1016/j.snb.2010.12.036 ↗
13. Development of microstructure CO sensor based on hierarchically porous ZnO nanosheet thin films10.1016/j.snb.2012.05.090 ↗
14. Al-doped ZnO for highly sensitive CO gas sensors10.1016/j.snb.2014.01.068 ↗
15. Structure and CO gas sensing properties of electrospun TiO2 nanofibers10.1016/j.matlet.2009.10.052 ↗
16. Synthesis, characterization, and comparative gas-sensing properties of Fe2O3 prepared from Fe3O4 and Fe3O4-chitosan10.1016/j.jallcom.2012.01.117 ↗
17. Highly sensitive and fast responding CO sensor based on Co3O4 nanorods10.1016/j.talanta.2009.11.034 ↗
18. Enhanced CO gas sensing properties of Pt-functionalized WO3 nanorods10.1016/j.tca.2011.12.002 ↗
19. First fifty years of chemoresistive gas sensors10.3390/chemosensors3010001 ↗
20. Recognition of carbon monoxide with SnO2/Ti thick-film sensor and its gas-sensing mechanism10.1016/j.snb.2013.09.092 ↗
21. Pt surface modification of SnO2 nanorod arrays for CO and H2 sensors10.1039/c0nr00159g ↗
22. Improvement of recovery time of nanostructured tin dioxide-based thick film gas sensors through surface modification10.1016/j.snb.2007.05.005 ↗
23. Self-adapted temperature modulation in metal-oxide semiconductor gas sensors10.1016/j.snb.2011.10.072 ↗
24. NiO doped SnO2 p–n heterojunction microspheres: preparation, characterisation and CO sensing properties10.1179/1753555715Y.0000000010 ↗
25. Synthesis of SnO2–CuO heterojunction using electrospinning and application in detecting of CO10.1016/j.snb.2015.11.028 ↗
26. Nanoscale metal oxide-based heterojunctions for gas sensing: a review10.1016/j.snb.2014.07.074 ↗
27. Enhanced BTEX gas-sensing performance of CuO/SnO2 composite10.1016/j.snb.2015.09.140 ↗
28. Highly sensitive and selective CO gas sensor based on a hydrophobic SnO2/CuO bilayer10.1039/C6RA06538D ↗
29. CuO-decorated ZnO hierarchical nanostructures as efficient and established sensing materials for H2S gas sensors10.1038/srep26736 ↗
30. Enhanced response to NO2 with CuO/ZnO laminated heterostructured configuration10.1016/j.snb.2014.01.030 ↗
31. K.Yong, CuO/ZnO heterostructured nanorods: photochemical synthesis and the mechanism of H2S gas sensing10.1021/jp302129j ↗
32. Study on CuO–BaTiO3 semiconductor CO2 sensor10.1016/S0925-4005(01)00892-9 ↗
33. H2S gas sensing properties of CuO-functionalized WO3 nanowires10.1016/j.ceramint.2014.03.120 ↗
34. Controllable construction of Cr2O3-ZnO hierarchical heterostructures and their formaldehyde gas sensing properties10.1016/j.matlet.2018.03.073 ↗
35. Hierarchical α-Fe2O3/NiO composites with a hollow structure for a gas sensor10.1021/am501063z ↗
36. One-step hydrothermal fabrication of nanosheet-assembled NiO/ZnO microflower and its ethanol sensing property10.1016/j.ceramint.2018.07.240 ↗
37. Efficient heterostructures of Ag@ CuO/BaTiO3 for low-temperature CO2 gas detection: assessing the role of nanointerfaces during sensing by operando DRIFTS technique10.1021/acsami.7b07051 ↗
38. Low-temperature and highly sensitive C2H2 sensor based on Au decorated ZnO/In2O3 belt-tooth shape nano-heterostructures10.1016/j.snb.2016.12.044 ↗
39. PdO/SnO2 hollow nanospheres for carbon monoxide detection10.1002/pssa.201431892 ↗
40. High-performance carbon monoxide gas sensor based on palladium/tin oxide/porous graphitic carbon nitride nanocomposite10.1016/j.jallcom.2019.04.187 ↗
41. Klug · 1974
42. Novel mixed phase SnO2 nanorods assembled with SnO2 nanocrystals for enhancing gas-sensing performance toward isopropanol gas10.1021/jp501550w ↗
43. A bamboo-inspired hierarchical nanoarchitecture of Ag/CuO/TiO2 nanotube array for highly photocatalytic degradation of 2, 4-dinitrophenol10.1016/j.jhazmat.2016.03.094 ↗
44. Metallic Sn spheres and SnO2@C core-shells by anaerobic and aerobic catalytic ethanol and CO oxidation reactions over SnO2 nanoparticles10.1038/srep13448 ↗
45. Acceleration of batch-type heterogeneous ligand-free suzuki-miyaura reactions with polymer composite supported Pd catalyst10.1038/s41598-017-06499-z ↗
46. Dose enhancing behavior of hydrothermally grown Eu-doped SnO2 nanoparticles10.1063/1.4790486 ↗
47. CuO/ZnO nanorods: an affordable efficient pn heterojunction and morphology dependent photocatalytic activity against organic contaminants10.1016/j.jallcom.2017.01.126 ↗
48. Palladium phosphide as stable and efficient electrocatalyst for overall water splitting10.1002/anie.201810102 ↗
49. Role of surface hydroxyl groups in promoting room temperature CO sensing by Pd-modified nanocrystalline SnO210.1016/j.jssc.2010.07.017 ↗
50. CO sensing properties and mechanism of Pd doped SnO2 thick-films10.1016/j.apsusc.2017.08.205 ↗
51. Selectivity and sensitivity of Pd-loaded and Fe-doped SnO2 sensor for CO detection10.1016/j.snb.2014.04.026 ↗
52. Heterostructure of CuO microspheres modified with CuFe2O4 nanoparticles for highly sensitive H2S gas sensor10.1016/j.snb.2018.02.110 ↗