Hydrogen sensing properties and mechanism of NiO-Nb2O5 composite nanoparticle-based electrical gas sensors
Source abstract
Abstract
A simple hydrothermal method was used to prepare NiO-Nb2O5 composite nanoparticle electrical sensors for the detection of hydrogen (H2) at room temperature. To investigate the morphology and crystal structure of the synthesized powders, the synthesized nanoparticles were characterized by scanning electron microscopy and X-ray diffraction. The NiO-Nb2O5 composite nanoparticle sensor showed stronger and faster response to H2 than the pristine Nb2O5 one at room temperature. Only weak responses were observed to carbon monoxide, methane and ethanol, indicating that the NiO-Nb2O5 composite nanoparticle sensor could be a potential candidate as a practical gas detector. In this study, the H2 sensing properties and mechanism of NiO-Nb2O5 composite nanoparticle-based electrical gas sensors are discussed in detail.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Reliability and selectivity of H2 sensors composed of Pd film nanogaps on an elastomeric substrate10.1016/j.snb.2015.10.092 ↗
2. Sensing mechanism of SnO2 (1 1 0) surface to H2: density functional theory calculations10.1016/j.snb.2015.05.061 ↗
3. Pt-decorated GaN nanowires with significant improvement in H2 gas-sensing performance at room temperature10.1016/j.jcis.2015.07.048 ↗
4. Advances in H2 sensors for bioanalytical applications10.1016/j.trac.2016.01.015 ↗
5. Influence of annealing on the structural, optical and photoluminescence properties of ZnO thin films for enhanced H2 sensing application10.1016/j.ceramint.2012.11.061 ↗
6. α-Fe2O3 based nanomaterials as gas sensors
7. Electrochromic properties of porous NiO thin films prepared by a chemical bath deposition10.1016/j.solmat.2008.01.009 ↗
8. Nanoporous Nb2O5 hydrogen gas sensor10.1016/j.snb.2012.09.028 ↗
9. Optical gas sensing properties of nanoporous Nb2O5 films10.1021/am508463g ↗
10. Hydrogen sensors - a review10.1016/j.snb.2011.04.070 ↗
11. High performance electrochromic devices based on anodized nanoporous Nb2O510.1021/jp410097y ↗
12. Enhanced coloration efficiency for electrochromic devices based on anodized Nb2O5/electrodeposited MoO3 binaty systems10.1021/jp5017888 ↗
13. Highly stable and selective ethanol sensor based on α-Fe2O3 nanoparticles prepared by pechini sol-gel method10.1016/j.ceramint.2015.12.176 ↗
14. Comparison of the ethanol sensing properties of α-iron oxide nanostructures prepared via the sol-gel and electrospinning techniques10.1088/0957-4484/27/7/075502 ↗
15. Hydrogen sensing properties of multiple networked Nb2O5/ZnO core–shell nanorod sensors10.1016/j.snb.2014.06.028 ↗
16. High-performance liquefied petroleum gas sensing based on nanostructures of zinc oxide and zinc stannate10.1016/j.snb.2011.03.055 ↗
17. CO gas sensing properties of In4Sn3O12 and TeO2 composite nanoparticle sensors10.1016/j.jhazmat.2015.11.044 ↗
18. Malherbe · 2007
19. Synthesis of nanograined ZnO nanowires and their enhanced gas sensing properties10.1021/am300741r ↗
20. Evaluation of selectivity of commercial hydrogen sensors10.1016/j.ijhydene.2014.03.251 ↗
21. Fastandhighly-sensitive hydrogen sensing of Nb2O5 nanowires at room temperature10.1016/j.ijhydene.2011.12.004 ↗
22. Hydrogen gas sensing performance of networked TeO2 nanobelt sensors enhanced by functionalization with Nb2O510.1016/j.materresbull.2016.02.028 ↗
23. High performance H2 sensor based on ZnSnO3 cubic crystallites synthesized by a hydrothermal method10.1016/j.talanta.2012.10.051 ↗
24. Nanostructured Pt decorated graphene and multi walled carbon nanotube based room temperature hydrogen gas sensor10.1039/b9nr00015a ↗
25. Fabrication of a flexible H2 sensor based on Pd nanoparticles modified polypyrrole films10.1016/j.matchemphys.2015.12.037 ↗
26. H2 sensors based on WO3 thin films activated by platinum nanoparticles synthesized by electroless process10.1016/j.ijhydene.2012.12.017 ↗
27. Hydrothermally synthesized SnO2-graphene composites for H2 sensing at low operating temperature10.1016/j.mseb.2015.10.009 ↗
28. 40Å platinum–porous SiC gas sensor: investigation sensing properties of H2 gas10.1016/j.physb.2012.09.036 ↗
29. Palladium nanocubes decorated on a one-dimensional ZnO nanorods array for use as a hydrogen gas sensor10.1016/j.matlet.2015.05.007 ↗
30. Diffusion-controlled H2 sensors composed of Pd-coated highly porous WO3 nanocluster film10.1016/j.snb.2013.09.116 ↗
31. Effects of gamma irradiation on hydrogen gas-sensing characteristics of Pd-SnO2 thin film sensors10.1016/j.ijhydene.2015.07.070 ↗
32. Fabrication of highly sensitive and selective H2 gas sensor based on SnO2 thin film sensitized with microsized Pd islands10.1016/j.jhazmat.2015.09.013 ↗
33. Highly sensitive and selective H2 and NO2 gas sensors based on surface-decorated WO3 nanoigloos10.1016/j.snb.2014.03.073 ↗
34. In-Situ decoration of Pd nanocrystals on crystalline mesoporous NiO nanosheets for effective hydrogen gas sensors10.1016/j.ijhydene.2013.06.120 ↗