DOI: 10.1063/1.451753. Charge dependence of chemisorption patterns for transition metal clusters

Charge dependence of chemisorption patterns for transition metal clusters

10.1063/1.451753

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

A method is presented for the measurement of the chemisorptive reactivity of transition metal cluster ions at near room temperature. Similar to a technique introduced previously for neutral clusters [Rev. Sci. Instrum. 56, 2123 (1985)], this cluster ion method utilizes a fast-flow reactor attached to a supersonic, laser vaporization metal cluster source, followed by time-of-flight mass spectral analysis of the cluster ions as a function of reactant concentration. Results are presented for clusters of cobalt and niobium in the 1–22 atom size range for their chemisorptive reactions with CO, CO2, and N2. Both Nb+n and Co+n clusters displayed chemical reactivity that is remarkably similar to that of the corresponding neutral clusters. For both charge states of each metal, CO was found to chemisorb with a rate which varied in a slow, monotonically increasing fashion with cluster size. The chemisorption rate of N2 and CO2, on the other hand, was found to be significantly slower than that of CO and sharply dependent upon the cluster size, this dependency being roughly independent of whether the transition metal cluster had a net positive or neutral charge. Photodissociation measurements of the mass-selected positive ion chemisorption products showed that the desorption energy of these products parallels the relative reaction rate.

Bibliography

Brucat, P. J., Pettiette, C. L., Yang, S., Zheng, L.-S., Craycraft, M. J., & Smalley, R. E. (1986). Charge dependence of chemisorption patterns for transition metal clusters. The Journal of Chemical Physics, 85(8), 4747â4748.

Authors 6

P. J. Brucat (first)
C. L. Pettiette (additional)
S. Yang (additional)
L.-S. Zheng (additional)
M. J. Craycraft (additional)
R. E. Smalley (additional)

References 26 Referenced 76

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{'key': '2024021003531367000_r2a', 'first-page': '5421', 'volume': '82', 'year': '1985', 'journal-title': 'J. Chem. Phys.'} / J. Chem. Phys. (1985)
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10.1021/ja00288a049 / J. Am. Chem. Soc. (1985)
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10.1021/j100250a004 / J. Phys. Chem. (1985)
10.1063/1.451316 / J. Chem. Phys. (1986)
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{'key': '2024021003531367000_r6'}
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{'key': '2024021003531367000_r8a'}
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{'key': '2024021003531367000_r12'}

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:02 a.m.)
Deposited	1 year, 6 months ago (Feb. 10, 2024, 12:11 a.m.)
Indexed	1 year ago (Aug. 2, 2024, 9:17 a.m.)
Issued	38 years, 10 months ago (Oct. 15, 1986)
Published	38 years, 10 months ago (Oct. 15, 1986)
Published Print	38 years, 10 months ago (Oct. 15, 1986)

Funders 0

None

BibTeX

@article{Brucat_1986, title={Charge dependence of chemisorption patterns for transition metal clusters}, volume={85}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.451753}, DOI={10.1063/1.451753}, number={8}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Brucat, P. J. and Pettiette, C. L. and Yang, S. and Zheng, L.-S. and Craycraft, M. J. and Smalley, R. E.}, year={1986}, month=oct, pages={4747–4748} }

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