HRTEM OBSERVATION OF METAL PARTICLES MOBILITY ON A PT/GAMMA-AL2O3 CATALYST

被引:9
|
作者
MARTRA, G
COLUCCIA, S
MONTICELLI, O
VITULLI, G
机构
[1] UNIV GENOA, INST CHIM IND, I-16132 GENOA, ITALY
[2] UNIV PISA, CTR CNR MACROMOLEC STEREORDINATE & OTTICAMENTE ATT, DIPARTIMENTO CHIM & CHIM IND, I-58100 PISA, ITALY
关键词
MICROPARTICLES; PLATINUM CATALYSTS; ALUMINA SUPPORT; ELECTRON MICROSCOPY;
D O I
10.1007/BF00814256
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
High resolution transmission electron microscopy analysis of Pt/Al2O3 catalyst prepared by deposition of platinum from mesitylene solution shows that the smallest metal particles on edges and corners migrate under the influence of the electron beam. Sintering is also promoted.
引用
收藏
页码:105 / 108
页数:4
相关论文
共 50 条
  • [31] HYDROGENATION OF ETHYL-ACETATE ON RE/GAMMA-AL2O3 CATALYST
    MINACHEV, KM
    AVAEV, VI
    RYASHENTSEVA, MA
    BULLETIN OF THE ACADEMY OF SCIENCES OF THE USSR DIVISION OF CHEMICAL SCIENCE, 1986, 35 (02): : 280 - 283
  • [32] Effect of the performance of Cu/gamma-Al2O3 catalyst with the addition of Ag
    ZHu, B
    Luo, MF
    Zhong, YF
    Li, BF
    Yuan, XX
    Chen, P
    Wu, HL
    CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 1995, 16 (12): : 1921 - 1925
  • [33] Experimental and theoretical description of the equilibrium adsorption of metal ion solutions on the surface of gamma-Al2O3 and MoO3/gamma-Al2O3 systems
    Machuca-Martinez, Fiderman
    Fierro, Jose L. G.
    INGENIERIA Y COMPETITIVIDAD, 2010, 12 (01): : 73 - 93
  • [34] STYRENE HYDROGENATION ON PD/GAMMA-AL2O3 AND PD-MN/GAMMA-AL2O3 CATALYSTS
    SANDULESCU, I
    XU, YD
    PIRVULESCU, V
    REVISTA DE CHIMIE, 1983, 34 (04): : 311 - 313
  • [35] PHOTO-ACOUSTIC SPECTROSCOPY STUDY OF METAL-SUPPORT INTERACTIONS IN CO/GAMMA-AL2O3 AND NI/GAMMA-AL2O3 CATALYSTS
    BURGGRAF, LW
    LEYDEN, DE
    CHIN, RL
    HERCULES, DM
    JOURNAL OF CATALYSIS, 1982, 78 (02) : 360 - 379
  • [36] MEASUREMENT OF 2-QUANTUM AND 3-QUANTUM ANNIHILATION IN POLYCRYSTALLINE GAMMA-AL2O3 AND GAMMA-AL2O3-PT
    EWERTOWSKI, F
    KLIMAS, J
    WOJTOWICZ, M
    DOKLADY AKADEMII NAUK SSSR, 1980, 251 (03): : 650 - 652
  • [37] INTERACTION OF AGI WITH GAMMA-AL2O3
    SCHMIDT, JA
    BAZAN, JC
    VICO, L
    SOLID STATE IONICS, 1988, 27 (1-2) : 1 - 4
  • [38] Promoting Effect of La2O3 on Ni/gamma-Al2O3 Methanation Catalyst
    Liu Xinhua
    Miao Yin
    Li Xiaoli
    Sheng Shishan
    ACTA PHYSICO-CHIMICA SINICA, 1995, 11 (08) : 746 - 750
  • [39] ADSORPTION OF BASES ON GAMMA-AL2O3
    MEDEMA, J
    KUIPER, AET
    VANBOKHO.JJ
    JOURNAL OF CATALYSIS, 1972, 25 (02) : 238 - &
  • [40] STABILIZATION OF O2- ON GAMMA-AL2O3
    LOSEE, DB
    JOURNAL OF CATALYSIS, 1977, 50 (03) : 545 - 548