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production from reactions between water and small molybdenum suboxide cluster anions
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10.1063/1.3463413
/content/aip/journal/jcp/133/5/10.1063/1.3463413
http://aip.metastore.ingenta.com/content/aip/journal/jcp/133/5/10.1063/1.3463413

Figures

Image of FIG. 1.
FIG. 1.

cluster distribution under dry conditions (black trace) and after exposure to (blue trace). Stoichiometric clusters are indicated with an asterisk (*).

Image of FIG. 2.
FIG. 2.

cluster distribution under dry conditions (black trace) and after exposure to (blue trace). Stoichiometric clusters are indicated with an asterisk (*).

Image of FIG. 3.
FIG. 3.

oxide series on an expanded scale under dry conditions (black traces) and after (a) and (b) exposure (blue traces). Peaks marked with asterisks (*) are contaminants.

Image of FIG. 4.
FIG. 4.

oxide series on an expanded scale under dry conditions (black traces) and (a) with increasing number density and (b) increasing number density. Numbers labeling the individual mass spectra reflect approximate cluster-water collisions during the reactor residence time.

Image of FIG. 5.
FIG. 5.

oxide series on an expanded scale under dry conditions (black traces) and (a) with increasing number density and (b) increasing number density. Numbers labeling the individual mass spectra reflect approximate cluster-water collisions during the reactor residence time.

Image of FIG. 6.
FIG. 6.

oxide series on an expanded scale under dry conditions (black traces) and (a) after exposure and (b) increasing number density. Numbers labeling the individual mass spectra reflect approximate cluster-water collisions during the reactor residence time.

Image of FIG. 7.
FIG. 7.

Integrated peak intensities of (black traces) and D-containing products (red traces) plotted as a function of approximate water-cluster collisions for reactions with given (a) a more reduced initial distribution and (b) a more oxidized initial distribution. Representative error bars are included for and .

Image of FIG. 8.
FIG. 8.

Integrated peak intensities of (black traces) and water products (red traces) plotted as a function of approximate water-cluster collisions for reactions with given (a) a more reduced initial distribution and (b) a more oxidized initial distribution. Representative error bars are included for and .

Image of FIG. 9.
FIG. 9.

Representative plots used to determine pseudo-1° rate constants for sequential oxidation of clusters. Note that the reported values in Table I reflect the average of many such linear fits. (a) The rate constant for the most reduced clusters ( is shown as an example) is determined assuming exponential decay of the peak integral, with the number of water collisions, , via Eq. (4). (b) Using the value of determined in (a), is determined by fitting Eq. (5). In both cases, the red lines are the linear fit generated by the KALEIDAGRAPH graphics program.

Tables

Generic image for table
Table I.

Pseudo-first-order rate constants determined from Eqs. (4) and (5). Conversion to the associated second order rate constants is achieved by multiplying by collisional volume swept per time, . Values in parentheses reflect the uncertainty in the last digit. Dashes indicate that there were insufficient data to assert an approximate value.

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/content/aip/journal/jcp/133/5/10.1063/1.3463413
2010-08-03
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: H2 production from reactions between water and small molybdenum suboxide cluster anions
http://aip.metastore.ingenta.com/content/aip/journal/jcp/133/5/10.1063/1.3463413
10.1063/1.3463413
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