Acta Phys. -Chim. Sin. ›› 1988, Vol. 4 ›› Issue (03): 262-266.doi: 10.3866/PKU.WHXB19880308

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STUDIED ON THE SYNTHESIS OF ETHANOL FROM CO HYDROGENATION WITH THE TRANSIENT RESPONSE TECHNIQUE——ADSORPTIVE CHARACTERISTICS OF H2 AND CO ON THE MODIFIED Rh/Al2O3 CATALYSTS

Lu Yun; Liu Danchu*; Zheng Shengan   

  1. Department of Chemistry; University of Fudan; Shanahai
  • Received:1986-10-11 Revised:1987-04-28 Published:1988-06-15
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Abstract: Quadrupole mass spectrometer was used in the transient response technique as an analytical tool. With this technique the adsorptive characteristics of H_2 and CO on the modified Rh/Al_2O_3 catalysts were studied. It is found that a small amount of H_2 or CO was adsorbed irreversibly on the fresh surface of catalysts at 507 K; H_2 and CO are adsorbed on the same surface sites and CO adsorption is somewhat stronger than H_2 adsorption Addition of the potassium salt reduces the amount of adsorption of H_2 or CO, but enhances the difference of adsorption strength between CO and H_2.