Observation of diffusion of hydrogen in molybdenite

被引：0
|
作者：
Fujioka, Yusuke [1 ]
Satoh, Takafumi [1 ]
Takagi, Syouji [1 ]
Gotoh, Tetsuji [1 ]
机构：
[1] Department of Physics, Toho University, 2-2-1, Miyama, Funabashi-shi 274-8510, Japan
来源：
Shinku/Journal of the Vacuum Society of Japan | 2002年 / 45卷 / 03期
关键词：
Atomic physics - Composition - Crystalline materials - Diffusion - Dissociation - Gas emissions - Heating - Molybdenum compounds - Surface phenomena - Thermal effects;
D O I：
10.3131/jvsj.45.262
中图分类号：
学科分类号：
摘要：
Diffusion of hydrogen into a bulk of molybdenite crystal that is exposed to hydrogen gas is studied by measurement of gas emitted from a bulk crystal during cleavage experiment. The cleavage experiment is performed to observe the change of hydrogen concentration in the bulk by the sample heating. The experiment shows that amount of emitted hydrogen molecules and water reduces but emitted hydrogen atoms do not reduce much when the molybdenite crystal heated at 300°C is cooled to room temperature. This suggests that hydrogen molecule absorbed dissociatively on the surface, and then the hydrogen atoms diffuse into the molybdenite crystal.
引用
收藏
页码：262 / 264
相关论文
共 50 条
  • [21] Observation of acoustic diffusion wave
    Kanda, O
    Sakai, K
    Yamamoto, K
    Takagi, K
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2002, 41 (01): : 232 - 236
  • [22] Mechanism and leaching kinetics of molybdenite concentrate in a hydrogen peroxide-acid system
    Aracena, Alvaro
    Azocar, Alan
    Patricio Ibanez, Juan
    Jerez, Oscar
    PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING, 2019, 55 (01): : 140 - 152
  • [23] Diffusion-controlled growth of hydrogen pores in aluminium-silicon castings:: In situ observation and modelling
    Atwood, RC
    Sridhar, S
    Zhang, W
    Lee, PD
    ACTA MATERIALIA, 2000, 48 (02) : 405 - 417
  • [24] DIRECT OBSERVATION OF HYDROGEN ENTRAPMENT
    AUCOUTURIER, M
    LAPASSET, G
    ASAOKA, T
    METALLOGRAPHY, 1978, 11 (01): : 5 - 21
  • [25] OBSERVATION OF MUONIUM IN SOLID HYDROGEN
    BREWER, JH
    CHOW, K
    HARDY, WN
    KADONO, R
    KEMPTON, JR
    KIEFL, RF
    KREITZMAN, SR
    LI, Q
    PFIZ, T
    RISEMAN, TM
    SENBA, M
    ESTLE, TL
    DUVARNEY, R
    LICHTI, R
    SCHWAB, C
    HYPERFINE INTERACTIONS, 1990, 65 (1-4): : 837 - 840
  • [26] DIFFUSION OF HYDROGEN IN NIOBIUM
    SCHOBER, HR
    STONEHAM, AM
    PHYSICAL REVIEW LETTERS, 1988, 60 (22) : 2307 - 2310
  • [27] DIFFUSION OF HYDROGEN IN METALS
    LECLAIRE, AD
    ANNALES DE CHIMIE-SCIENCE DES MATERIAUX, 1989, 14 (1-2): : 51 - 68
  • [28] DIFFUSION OF HYDROGEN IN NICKEL
    SAKAMOTO, Y
    MIURA, A
    JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1978, 42 (04) : 331 - 337
  • [29] HYDROGEN DIFFUSION IN NICKEL
    COMBETTE, P
    AZOU, P
    MEMOIRES SCIENTIFIQUES DE LA REVUE DE METALLURGIE, 1970, 67 (01): : 17 - &
  • [30] DIFFUSION OF HYDROGEN IN SILICON
    OMELYANOVSKII, EM
    PAKHOMOV, AV
    POLYAKOV, AY
    BORODINA, OM
    SOVIET PHYSICS SEMICONDUCTORS-USSR, 1989, 23 (01): : 112 - 113
12345