Surface chemistry and the corrosion behavior of magnetron sputtered niobium oxide films in sulfuric acid solution
Source abstract
Abstract
Abstract In this work, magnetron sputtered Nb2O5 films were obtained at two different deposition times. The surface chemistry of the deposited layers was investigated by X-ray photoelectron spectroscopy (XPS). The corrosion behavior was assessed by electrochemical impedance spectroscopy, potentiodynamic polarization and potentiostatic polarization tests in 0.5 M H2SO4 + 2 ppm HF solution at room temperature. The Nb5+/Nb4+ ratio decreased with the deposition time, leading to a higher surface activity for the film obtained at 30 min. This result was confirmed by its lower impedance values and higher current densities when compared to the 15′-film. Surface chemistry played a major role on the corrosion behavior of the sputtered films and can be tailored by the deposition time.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Semiconductor materials and devices · Metal and Thin Film Mechanics · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (51)
Show source-provided references
1. Combined plasma surface modification of austenitic stainless steel for bipolar plates10.1016/j.surfcoat.2017.08.047 ↗
2. Corrosion-resistant characteristics of nitrided Ni-free stainless steel for bipolar plate of polymer electrolyte fuel cell10.1016/j.ijhydene.2017.01.211 ↗
3. Materials selection for bipolar plates for polymer electrolyte membrane fuel cells using the Ashby approach10.1016/j.jpowsour.2012.01.104 ↗
4. Coating of stainless steel and titanium bipolar plates for anticorrosion in PEMFC: a review10.1016/j.ijhydene.2016.06.241 ↗
5. Surface coating and texturing on stainless steel plates to decrease the contact resistance by using screen printing10.1016/j.ijhydene.2017.06.154 ↗
6. Surface modification of 316 stainless steel with platinum for the application of bipolar plates in high performance proton exchange membrane fuel cells10.1016/j.ijhydene.2016.09.220 ↗
7. Corrosion and electrical properties of carbon/ceramic multilayer coated on stainless steel bipolar plates10.1016/j.surfcoat.2016.03.072 ↗
8. Chromium interlayer amorphous carbon film for 304 stainless steel bipolar plate of proton exchange membrane fuel cell
9. Preparation of corrosion-resistant and conductive trivalent Cr-C coatings on 304 stainless steel for use as bipolar plates in proton exchange membrane fuel cells by electrodeposition10.1016/j.jpowsour.2015.05.105 ↗
10. A review of composite and metallic bipolar plates in proton exchange membrane fuel cell: materials, fabrication, and material selection10.1016/j.jpowsour.2014.04.081 ↗
11. Electrochemical behavior and surface conductivity of niobium carbide-modified austenitic stainless steel bipolar plate10.1016/j.jpowsour.2013.08.025 ↗
12. Composition optimization of arc ion plated CrNx films on 316L stainless steel as bipolar plates for polymer electrolyte membrane fuel cells10.1016/j.jpowsour.2012.01.056 ↗
13. Electrochemical behavior of nanocrystalline Ta/TaN multilayer on 316L stainless steel: novel bipolar plates for proton exchange membrane fuel cells10.1016/j.jpowsour.2016.04.133 ↗
14. Enhanced electrical conductivity of two layers AlN-TiN coating on SS316L as bipolar plate using plasma focus device10.1016/j.ijhydene.2016.01.081 ↗
15. Multilayered Zr-C/a-C film on stainless steel 316L as bipolar plates for proton exchange membrane fuel cells10.1016/j.jpowsour.2016.02.078 ↗
16. Influence of Cr-C film composition on electrical and corrosion properties of 316L stainless steel as bipolar plates for PEMFCs10.1016/j.ijhydene.2015.10.047 ↗
17. Low-cost and durable bipolar plates for proton exchange membrane electrolyzers10.1038/srep44035 ↗
18. Corrosion behaviour of polycrystalline Nb2O5 thin films and its size effects10.1134/S2070205116010081 ↗
19. Effect of niobium film on corrosion resistance of AZ91D magnesium alloy
20. Corrosion resistance of atomic layer deposition-generated amorphous thin films10.1021/acsami.6b11231 ↗
21. Corrosion behavior of amorphous niobium oxide coatings10.1016/S1452-3981(23)13426-2 ↗
22. Biocompatible Nb2O5 thin films prepared by means of the sol–gel process10.1023/B:JMSM.0000021120.86985.f7 ↗
23. Thermodynamic properties of niobium oxides10.1021/je1004609 ↗
24. Novel sol gel coating of Nb2O5 on magnesium alloy for biomedical applications10.1016/j.surfcoat.2014.01.050 ↗
25. Determination of optical and mechanical properties of Nb2O5 thin films for solar cells applications10.1016/j.apsusc.2014.01.144 ↗
26. Niobium based coatings for dental implants10.1016/j.apsusc.2010.10.021 ↗
27. Corrosion of thin, magnetron sputtered Nb2O5 films10.1016/j.corsci.2015.10.023 ↗
28. Corrosion behavior of niobium coated 304 stainless steel in acid solution10.1016/j.apsusc.2016.02.088 ↗
29. Electrochemical behavior of niobium electrodeposited 316 stainless steel bipolar plate for PEMFC in choline chloride based ionic liquids10.1007/s11595-015-1273-8 ↗
30. Corrosion behavior of Cr-based bulk metallic glasses in hydrochloric acid solutions10.1016/j.corsci.2016.02.026 ↗
31. Corrosion behavior and electrical conductivity of niobium implanted 316L stainless steel used as bipolar plates in polymer electrolyte membrane fuel cells10.1016/j.surfcoat.2010.06.009 ↗
32. The effects of heat treatments upon NO adsorption for a single Crystal of LiNbO310.1016/S0169-4332(97)00340-1 ↗
33. The topmost structure of annealed single Crystal of LiNbO310.1016/S0039-6028(98)00177-0 ↗
34. Macroporous nanostructured Nb2O5 with surface Nb4+ for enhanced lithium ion storage properties
35. XPS study of corrosion behavior of Ti-18Nb-4Sn shape memory alloy in a 0.05 mass% HCl solution10.2320/matertrans.44.1405 ↗
36. Effect of cold deformation on the corrosion behaviour of UNS S31803 duplex stainless steel in simulated concrete pore solution10.1016/j.corsci.2017.05.021 ↗
37. Hinge-type knee prosthesis wear tests with a mechanical load and corrosion properties monitoring10.1016/j.triboint.2012.02.014 ↗
38. Electrochemical impedance spectroscopy investigation of the corrosion resistance of a waterborne acrylic coating containing active electrochemical pigments for the protection of carbon steel10.1016/S1452-3981(23)07911-7 ↗
39. Corrosion performance of 3%Cr steel in CO2-H2S environment compared with carbon steel10.1002/maco.201408174 ↗
40. EIS monitoring study of atmospheric corrosion under variable relative humidity10.1016/j.corsci.2010.07.018 ↗
41. Electrochemical impedance spectroscopy investigations of epoxy zinc rich coatings: Role of Zn content on corrosion protection mechanism10.1016/j.electacta.2010.04.018 ↗
42. K. Kowalski, A. Bernasik, W. Singer, J. Camra, In situ XPS investigation of the baking effect on the surface oxide structure formed on niobium sheets used for superconducting RF cavity production, in: Proceedings of the 11th Workshop on RF Superconductivity, Lübeck/Travemünder, Germany, 2003.
43. Electrochemical and XPS studies of the passive film formed on stainless steels in borate buffer and chloride solutions10.1016/j.corsci.2006.11.001 ↗
44. Effect of cold deformation on the corrosion behavior of UNS S31803 duplex stainless steel in simulated pore solution10.1016/j.corsci.2017.05.021 ↗
45. The passive oxide films growth on 316L stainless steel in borate buffer solution measured by real-time spectroscopic ellipsometry10.1016/j.apsusc.2015.05.165 ↗
46. The effect of surface enriched chromium and grain refinement by ball milling on corrosion resistance of 316L stainless steel10.1016/j.materresbull.2017.03.022 ↗
47. Electrochemical polishing as a 316L stainless steel surface treatment method: Towards the improvement of biocompatibility10.1016/j.corsci.2014.06.010 ↗
48. Surface nanostructure determination by X-ray phoemission spectroscopy peak shape analysis10.1116/1.579963 ↗
49. Amorphous niobium oxide thin films10.1016/j.jnoncrysol.2010.09.073 ↗
50. Electrocatalytic activity and durability of Pt/NbO2 and Pt/Ti4O7 nanofibers for PEM fuel cell oxygen reduction reaction10.1016/j.electacta.2011.11.005 ↗
51. Brandolt · Mater. Res. · 2014 · 17 · 86610.1590/S1516-14392014005000087 ↗