The activities of evaporated metal films in gas chemisorption

Trapnell, B. M. W.

doi:10.1016/0042-207x(54)90301-2

Cited by 11 publications

(16 citation statements)

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“…2A, dashed line), confirming that both peaks can only be ascribed to the oxidation of CO, ostensibly to CO 2 . Adsorption of CO on Pb is not expected to occur [36]. In fact, it has been shown that CO can displace Pb adatoms deposited on a Pt(1 1 1) surface [5,6].…”

Section: Resultsmentioning

confidence: 98%

“…Conversely, molecular adsorption would be expected on late transition metals. These trends would suggest that CO would dissociatively chemisorb onto Ti, Zr and Ta [36]. In order to ascertain if such trends are maintained in ordered intermetallic phases Pt 3 Ti, Pt 3 Zr, Pt 2 Ta and Pt 3 Ta were synthesized and the adsorption of CO on these surfaces studied.…”

Section: Resultsmentioning

confidence: 99%

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CO tolerance of ordered intermetallic phases

de‐los‐Santos‐Álvarez

Alden

Rus

et al. 2009

Journal of Electroanalytical Chemistry

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

CO tolerance of ordered intermetallic phases

de‐los‐Santos‐Álvarez

Alden

Rus

et al. 2009

Journal of Electroanalytical Chemistry

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“…Chemical reaction is associated with the severance of oxygen from the crystal lattice of the oxide. Chemisorption at copper oxide involves the carbonate above 300°C, according to [8] (3)…”

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confidence: 99%

Reactions of metal oxides with carbon

Ryabchikov¹,

Белов

Mizin³

2014

Steel Transl.

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The reaction of metal oxides with carbon is investigated. Baikov's hypothesis regarding the role of atomic oxygen in the reduction of metals and the oxidation of carbon is confirmed theoretically and experi mentally. The initial stages in the process include conjugate chemical reactions: dissociation of the oxide with the liberation of atomic and molecular oxygen; and the oxidation of carbon. The reaction of thermodynam ically stable metal oxides with carbon is slowed by the accumulation of carbon monoxide in the system and the blocking of the reducing agent's surface by metal carbides and oxycarbides. The production of silicon fer roalloys from briquetted batch is shown to be promising.

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“…2 and Fig. 3: to a greater initial differential heat corresponds a greater activation energy of desorption according to the well known relation Edes = Clads + Eads [9]. So, we have binding energy again decreasing in the order: H2 > N20 > H20 > CO > 02.…”

Section: Adsorption In the Darkmentioning

confidence: 90%

Adsorption and desorption of different gases on Ru film in the dark and under UV irradiation

Stradella¹

1997

React Kinet Catal Lett

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The adsorption and desorption of some vapors and gases (water, hydrogen, dinitrogen oxide, carbon monoxide, oxygen) on Ru film has been investigated at 305 K using a Tiau-Calvet microealorimeter. The initial heat of adsorption, the irreversible coverage and the temperature of maximum desorption rate indicate the following binding energy order: 1-12 > N20 > H20 > CO > 02. The amount of photoadsorption (for H20, N:O, HE) and photodesorption (for CO and 02) has also been determined by recording the pressure changes induced by UV irradiation of the Ru film.Keywords: Adsorption, photoadsorption, ruthenium film Ruthenium and its alloys are widely used in catalysis and an extensive literature is dedicated to this subject [1][2][3].The adsorption properties of ruthenium have been extensively studied [4,5] by electron spectroscopy techniques, but relatively few studies concerning the energetics of the interaction of small molecules with Ru surface have been published till now. Thermal methods of surface analysis such as adsorption microcalorimetry [6], TPD (temperature programmed desorption) and EGA (evolved gas analysis) [7] may provide useful information about adsorption-desorption equilibrium and the energy bonds of the adsorbed species. Furthermore the photochemistry at adsorbate/metal interface seems to undergo recent interesting developments [8].

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The activities of evaporated metal films in gas chemisorption

Cited by 11 publications

References 0 publications

CO tolerance of ordered intermetallic phases

CO tolerance of ordered intermetallic phases

Reactions of metal oxides with carbon

Adsorption and desorption of different gases on Ru film in the dark and under UV irradiation

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