Hydrogen Photoassisted Generation by Visible Light and an Earth Abundant Photocatalyst: Pyrite (FeS2)

被引：33
|
作者：
Barawi, Mariam [1 ,2 ]
Ferrer, Isabel J. [1 ]
Flores, Eduardo [1 ]
Yoda, Satoko [1 ]
Ares, Jose R. [1 ]
Sanchez, Carlos [1 ]
机构：
[1] Univ Autonoma Madrid, Dept Fis Mat, MIRE Grp, E-28049 Madrid, Spain
[2] Fdn Ist Italiano Tecnol, Ctr Biomol Nanotechnol, I-73010 Arnesano, LE, Italy
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2016年 / 120卷 / 18期
关键词：
IRON PYRITE; THIN-FILMS; BAND-GAP; NATURAL PYRITE; PHOTOELECTRODES; PHOTOLYSIS; LAYER; WATER; CDS;
D O I：
10.1021/acs.jpcc.5b11482
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：
N-Type pyrite (FeS2) thin films, deposited on titanium substrates, have been synthesized and photoelectrochemically characterized. Its flat band potential has been estimated to be -0.75 +/- 0.05V vs Ag/AgCl by electrochemical impedance spectroscopy (EIS). The corresponding energy level diagram of the FeS2/electrolyte interface has been established. Profuse hydrogen flows have been produced under visible light illumination of FeS2 photoanode in a photo electrochemical cell (PEC) at different bias potentials. Their values, measured by mass spectrometry (MS), were higher than 5 mu mol H-2/min.cm(2). Hydrogen photogeneration efficiencies of similar to 8% have been reached.
引用
收藏
页码：9547 / 9552
页数：6
相关论文
共 50 条
  • [31] Theoretical exploration of the interaction between hydrogen and pyrite-type FeS2 surfaces
    Liu, Jinjia
    Yang, Tao
    Peng, Qing
    Yang, Yong
    Li, Yong-Wang
    Wen, Xiao-Dong
    APPLIED SURFACE SCIENCE, 2021, 537
  • [32] Feasibility of band gap engineering of pyrite FeS2
    Sun, Ruoshi
    Ceder, Gerbrand
    PHYSICAL REVIEW B, 2011, 84 (24)
  • [33] SOME ASPECTS ON THE HYDROTHERMAL CRYSTALLIZATION OF FES2(PYRITE)
    BABIC, DD
    NEUES JAHRBUCH FUR MINERALOGIE-MONATSHEFTE, 1982, (12): : 551 - 557
  • [34] SURFACE FREE-ENERGIES OF FES2 (PYRITE)
    BABIC, DD
    NEUES JAHRBUCH FUR MINERALOGIE-MONATSHEFTE, 1981, (05): : 225 - 229
  • [35] Photoeffects in cobalt doped pyrite (FeS2) films
    Thomas, B
    Ellmer, K
    Bohne, W
    Röhrich, J
    Kunst, M
    Tributsch, H
    SOLID STATE COMMUNICATIONS, 1999, 111 (05) : 235 - 240
  • [36] Iron pyrite FeS2 for flexible solar cells
    Rezig, B.
    Dahman, H.
    Kenzari, M.
    Renewable energy, 1992, 2 (02) : 125 - 128
  • [37] THIN PHOTOACTIVE FeS2 (PYRITE) FILMS.
    Chatzitheodorou, G.
    Fiechter, S.
    Koenenkamp, R.
    Kunst, M.
    Jaegermann, W.
    Tributsch, H.
    1600, (21):
  • [38] Photoacoustic characterization of natural mineral pyrite (FeS2)
    P. M. Nikolić
    D. T. Luković
    M. V. Nikolić
    S. Djurić
    S. M. Savić
    A. M. Milovanović
    S. R. ukić
    B. Stamenović
    The European Physical Journal Special Topics, 2008, 153 : 187 - 189
  • [39] Differential adsorption of molybdate and tetrathiomolybdate on pyrite (FeS2)
    Bostick, BC
    Fendorf, S
    Helz, GR
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2003, 37 (02) : 285 - 291
  • [40] ASPECTS OF THE INTERFACIAL ELECTROCHEMISTRY OF SEMICONDUCTOR PYRITE (FES2)
    MISHRA, KK
    OSSEOASARE, K
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1988, 135 (10) : 2502 - 2509
12345