Infrared spectra of the oxides and carbonates of silver

Slager, T. L.; Lindgren, B.; Mallmann, A. James; Greenler, Robert G.

doi:10.1021/j100650a029

Cited by 47 publications

(35 citation statements)

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“…Slager et al carried out the FT-IR study of a pure silver(I) carbonate and observed four bands at 1410, 1020, 880, and 690 cm −1 for Ag 2 CO 3 and only one band at 535 cm −1 for Ag 2 O [57]. They also investigated that the reaction of silver(I) carbonate with water vapor resulted in the formation of basic silver carbonate (AgOHAg 2 CO 3 ) having two characteristic bands at 1460 and 1480 cm −1 .…”

Section: Characterizationmentioning

confidence: 99%

Synthesis, characterization, and visible light activity of new nanoparticle photocatalysts based on silver, carbon, and sulfur-doped TiO2

Hamal

Klabunde

2007

Journal of Colloid and Interface Science

267

139

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Section: Characterizationmentioning

confidence: 99%

Synthesis, characterization, and visible light activity of new nanoparticle photocatalysts based on silver, carbon, and sulfur-doped TiO2

Hamal

Klabunde

2007

Journal of Colloid and Interface Science

267

139

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“…Silver oxide surfaces form carbonates readily with exposure to atmospheric CO 2 . 39 Binding Energy (eV) The O/Ag ratio measured by XPS is 1.15 (Table 2). This is consistent with AgO as the surface product, because the observed stoichiometry was similar to that measured for bulk AgO powder (1.08, Table 2).…”

Section: Freshly Prepared Silver Powdermentioning

confidence: 99%

Interaction of a polycrystalline silver powder with ozone

Waterhouse

Bowmaker

Metson

2002

Surface & Interface Analysis

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The interaction of a polycrystalline silver powder with ozone (5 mol.% O 3 in O 2 ) was investigated over the temperature range 300-923 K. Silver powder samples were reacted with ozone for 30 min at specified temperatures in this range. All experiments were performed at atmospheric pressure. Following treatment, samples were cooled rapidly to room temperature under a nitrogen gas purge and then characterized by scanning electron microscopy, powder x-ray diffraction, Raman spectroscopy and x-ray photoelectron spectroscopy. The morphology, structure and chemical composition of the oxide products formed at different reaction temperatures were examined. The silver powder blackened immediately upon contact with the reaction gas mixture at 300 K, due to the formation of silver (I) oxide (Ag 2 O). After reaction with O 3 for 30 min at 300 K, a mixed-oxide phase comprised of Ag 2 O and monoclinic silver (I, III) oxide (AgO) was formed. The AgO was formed at the gas/oxide interface via the oxidation of Ag 2 O. A tetragonal AgO polymorph was formed when the silver powder was reacted with ozone at 473 K. The only product of silver oxidation by O 3 at 673 K was Ag 2 O, which remained stable in the reaction gas to temperatures in excess of 773 K. The silver powder was not oxidized by ozone at 923 K, although the powder did sinter extensively during the treatment. The experimental data presented are in good accord with available thermodynamic data pertaining to the thermal stability of Ag 2 O and AgO in ozonized oxygen at atmospheric pressure.

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“…6) implies that silver (although with different thickness) is always on top of the layer system. It should be noted that silver layers only few nm thick and especially small particles are very reactive and in contrast to the silver bulk materials also react with oxygen at the temperature supplied during annealing [41][42][43][44].…”

Section: Resultsmentioning

confidence: 99%