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- W1995935498 abstract "The adsorption and decomposition of ethylene on the (1×1) Pt(110) surface is examined with TPD and EELS. It is found that the (1 × 1) Pt(110) surface is unusually active for carbon-carbon bond scission and coke formation. At 93 K ethylene adsorbs molecularly on the (1×1) Pt(110) surface to yield a π-bound complex. Some of the π-bound ethylene desorbs upon heating to 220 K; simultaneously, some of the remaining ethylene is converted to a di-σ complex (η2-CH2CH2-). Additional ethylene desorbs upon heating to 300 K. Simultaneously, some of the ethylene reacts to form ethane (C2H6), and some decomposes to yield methane (CH4), ethane-1-yl-2-ylidyne (η4CCH2-), hydrogen (H2), and adsorbed carbon. Additional hydrogen is liberated upon further heating to 400 K to produce a mixture of “C2” species ([-CC-]x) and adsorbed carbon. The (1×1) Pt(110) surface is the only face of platinum studied so far which shows reasonable activity for methane formation. It is also the most active surface for low temperature carbon and [-CC-]x formation. Thus, we conclude that (1×1) Pt(110) sites are especially active for coke formation as expected theoretically." @default.
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- W1995935498 date "1989-11-01" @default.
- W1995935498 modified "2023-09-26" @default.
- W1995935498 title "Ethylene adsorption and decomposition on (1 × 1) Pt(110): Chemistry of the coke formation site on platinum?" @default.
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- W1995935498 doi "https://doi.org/10.1016/0167-2584(89)90933-x" @default.
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