DOI: 10.1557/jmr.1988.0714. Studies of reactions between gaseous organo-silicon compounds and metal surfaces

Studies of reactions between gaseous organo-silicon compounds and metal surfaces

10.1557/jmr.1988.0714

Crossref journal-article

Springer Science and Business Media LLC

Journal of Materials Research (297)

Abstract

A procedure for modifying the surface composition of catalytically active metals with silicon-containing gaseous reactants has been developed. This new gas-solid reaction method is unique in that it can be used for the in situ synthesis of catalytically interesting materials, which cannot be done by conventional solid-solid reaction techniques. Using an oxygen-free silicon compound (e.g., hexamethyldisilazane, HMDS), the metals studied fall into two categories: those that involve reaction followed by diffusion, and those that exhibit surface reaction only. The first group, consisting of the metals Ni, V, Rh, Pt and Pd, formed thick (up to 0.6μ) Si diffusion layers, after reaction at 430 °C for a few hours, with either H2/HMDS or Ar/HMDS mixtures. Under the same conditions, the second group of metals, Fe and Co, showed thin (∼ 500 Å) overlayers containing silicon, but with no diffusion. The only nonmetal (graphite) studied so far showed no reaction, within the detectability limits of Auger spectroscopy. This observation shows that these reactions are catalytically induced by certain metal surfaces; in other words, they selectively take place on metals. These findings clearly have important implications for catalysis. For example, the metal surfaces of oxide-supported metal catalysts can, in principle, be selectively modified by gas-phase reactants. This treatment can readily be accomplished in situ in the catalytic reactor. The above reactions may well result in a new class of metallic catalysts, with one of the components being silicon. Furthermore, gas-phase compounds containing the elements aluminum, boron, and germanium are known to react with metals in an analogous manner, which further extends the range of possibilities for the synthesis of new catalytic materials.

Bibliography

Yates, D. J. C., Behal, S. K., & Kear, B. H. (1988). Studies of reactions between gaseous organo-silicon compounds and metal surfaces. Journal of Materials Research, 3(4), 714â722.

Authors 3

D. J. C. Yates (first)
S. K. Behal (additional)
B. H. Kear (additional)

References 20 Referenced 2

{'key': 'S0884291400003009_ref017', 'volume-title': 'Handbook of Auger Electron Spectroscopy', 'author': 'Davis', 'year': '1976'} / Handbook of Auger Electron Spectroscopy by Davis (1976)
10.1021/ja00341a012
10.1063/1.1663776
10.1116/1.570170
10.1016/0040-6090(75)90058-9
{'key': 'S0884291400003009_ref002', 'volume-title': 'Thin Films–Interdiffusion and Reactions', 'author': 'Poate', 'year': '1978'} / Thin Films–Interdiffusion and Reactions by Poate (1978)
10.1126/science.225.4660.403
10.1016/0021-9517(84)90131-3
10.1116/1.572362
10.1016/S0039-6028(85)80018-2
{'key': 'S0884291400003009_ref008', 'first-page': '752', 'volume': '12', 'author': 'Wallace', 'year': '1982', 'journal-title': 'Chemtech.'} / Chemtech. by Wallace (1982)
10.1021/j100464a026 / J. Phys. Chem. by Imamura (1979)
10.1021/j100488a016
{'key': 'S0884291400003009_ref013', 'first-page': '1', 'volume-title': 'Coke Formation on Metal Surfaces, ACS Symposium Series 202', 'author': 'Yates', 'year': '1982'} / Coke Formation on Metal Surfaces, ACS Symposium Series 202 by Yates (1982)
10.1016/0021-9517(82)90148-8
10.1016/0039-6028(71)90210-X
10.1016/0040-6090(73)90112-0
10.1016/0040-6090(75)90059-0
10.1021/ja00469a029
10.1016/S0039-6028(85)80017-0

Dates

Type	When
Created	17 years, 11 months ago (Sept. 27, 2007, 5:32 a.m.)
Deposited	4 years, 6 months ago (Feb. 24, 2021, 4:42 p.m.)
Indexed	3 years, 4 months ago (April 1, 2022, 4:05 a.m.)
Issued	37 years ago (Aug. 1, 1988)
Published	37 years ago (Aug. 1, 1988)
Published Online	14 years, 6 months ago (Jan. 31, 2011)
Published Print	37 years ago (Aug. 1, 1988)

Funders 0

None

BibTeX

@article{Yates_1988, title={Studies of reactions between gaseous organo-silicon compounds and metal surfaces}, volume={3}, ISSN={2044-5326}, url={http://dx.doi.org/10.1557/jmr.1988.0714}, DOI={10.1557/jmr.1988.0714}, number={4}, journal={Journal of Materials Research}, publisher={Springer Science and Business Media LLC}, author={Yates, D. J. C. and Behal, S. K. and Kear, B. H.}, year={1988}, month=aug, pages={714–722} }

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