【摘要】 本文用低能电子衍射谱研究了ＣＯ分子吸附在过渡金属上的表面结构。更多还原

【Abstract】 This paper studied the sarface structure of CO molecules adsorbed on the transition metals surfaces by Low-energy electron diffraction spectra. It is shown that for CO/Ni {100}, the atomic layer distances dNi-C=0. 1810±0.0001nm, dC-O=0. 1090±0.0001nm; the CO molecule bond length IC-O =0. 1150nm, and the tilted angle β= 18.59°±0. 15°, and that the structure Parameters are close to the figure in Ni (CO) 4, It is found that tbr CO/ Rh{111}, the atomic layer distanes dRh-C = 0. 1950 ±0.0001nm, dC-O =0. 105 ±0.002nm, the CO molecule bond length lC-O=0.1170nm, the tilted angle β=26. 18°± 2.2°and that the structure parameters are close to the figure in Rh2 (CO) 8. It is also found that for CO/Cu {100}, the atomic layer distances dCu-C =0. 192 ± 0.002nm, dC-O =0. 1063±0.0001nm; the CO molecule bond length lC-O =0. 1129nm,the tilted angle β=19.69°± 0.15°; for CO/Pd {100}, the atomic layer distances dPd-C=0.157±0.003nm, dC-O=0. 1126±0.0004nm; the CO molecule bond length lC-O=0.1129nm, the tilted angle β=4. 18°± 2.2°. And for CO / Ti{ 0001}, the atomic layer distances dTi-C=0. 195±0.003nm,dC-O =0. 1191±0.0001nm; the CO molecule bond length lC-O=0.1129nm, and the tilted angle β= 7.63°±0. 15°.更多还原