Lead Monoxide | ScienceGate

The cathodic reduction of the lead monoxide layer formed on lead in 30% aqueous H2SO4 under anodic oxidation at 0.6 V (vs. Hg/HgSO4 reference electrode) was investigated by linear sweep voltammetry, potential step and admittance measurements. The experimental data were analyzed respectively in terms of thin-layer electrochemistry, electrocrystallisation, and changes of resistance of the PbO layer under reduction. The results seem to be best interpreted from the theory of three-dimensional electrocrystallisation as PbO is reduced to Pb. At sub-zero temperatures the PbO peak observed on our voltammograms and potentiostatic current time transients reveals the splitting of the curves into two peaks, which may be a result of reduction of the same material but of different phases, namely, orthorhombic and tetragonal PbO.

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Two-Dimensional Lead Monoxide: Facile Liquid Phase Exfoliation, Excellent Photoresponse Performance, and Theoretical Investigation

ACS Photonics ◽

10.1021/acsphotonics.8b01335 ◽

2018 ◽

Vol 5 (12) ◽

pp. 5055-5067 ◽

Cited By ~ 16

Author(s):

Chenyang Xing ◽

Xing Chen ◽

Weichun Huang ◽

Yufeng Song ◽

Jihao Li ◽

...

Keyword(s):

Liquid Phase ◽

Theoretical Investigation ◽

Two Dimensional ◽

Lead Monoxide ◽

Liquid Phase Exfoliation

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Lead monoxide (PbO) impurities and defects

Non-Tetrahedrally Bonded Elements and Binary Compounds I - Landolt-Börnstein - Group III Condensed Matter ◽

10.1007/10681727_869 ◽

2005 ◽

pp. 1-2

Author(s):

Keyword(s):

Lead Monoxide ◽

Impurities And Defects

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The inhibiting effect of lead tetraethyl I. The effect of lead compounds on the vapour phase slow oxidation of di is opropyl ether and on the ignition of diethyl ether

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1952.0205 ◽

1952 ◽

Vol 215 (1121) ◽

pp. 175-186 ◽

Cited By ~ 15

Keyword(s):

Diethyl Ether ◽

Colloidal Particles ◽

Vapour Phase ◽

Slight Effect ◽

Cool Flame ◽

Lead Compounds ◽

Inhibiting Effect ◽

Lead Monoxide ◽

Flame Ignition ◽

Surface Destruction

The effect of lead tetraethyl on various pressure-temperature regions of ether combustion is described. The inhibiting effect was found to persist after prolonged evacuation of the apparatus. Various experiments suggested that this was due to the deposition of lead oxide. Work has therefore been carried out to determine the effects of the oxides of lead on the slow oxidation and on the ignition of ethers. It is found that lead monoxide gives an inhibiting effect profound, persistent and in every way similar to that of lead tetraethyl. Experiments show that it does this by a surface destruction of chain centres. It is further shown that, on oxidation, lead tetraethyl gives rise to a fog of (probably lead monoxide) particles. Its inhibiting effect is then exerted either by these colloidal particles or by the film of lead monoxide to which they give rise on the walls of the vessel. Lead tetraethyl and lead monoxide inhibit, at both ‘low’ and ‘high ’ temperatures, both the slow oxidation of di is opropyl ether and the process leading to hot flames of diethyl ether. They have no effect on the induction period preceding a cool flame in diethyl ether and only a slight effect on the cool-flame ignition limit. They both reduce the pressure kick due to a cool flame. These results are briefly discussed and are related to other published work.

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