In situ X-ray diffraction environments for high-pressure reactions

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal article

    Bjarne R. S. Hansen, DenmarkKasper Trans Møller, Mark Paskevicius, Denmark
  • Ann-Christin Dippel
  • Peter Walter, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, GermanyColin James Webb, Griffith University, AustraliaClaudio Pistidda, Institute of Materials Research, Materials Technology, Helmholtz−Zentrum Geesthacht, GermanyNils Bergemann, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, D-21502 Geesthacht, GermanyMartin Dornheim, Institute of Materials Research, Materials Technology, Helmholtz−Zentrum Geesthacht, GermanyThomas Klassen, Institute of Materials Research, Materials Technology, Helmholtz−Zentrum Geesthacht, Germany
  • Jens-Erik Jørgensen
  • Torben René Jensen
New sample environments and techniques specifically designed for in situ
powder X-ray diffraction studies up to 1000 bar (1 bar = 105 Pa) gas pressure are reported and discussed. The cells can be utilized for multiple purposes in a range of research fields. Specifically, investigations of gas–solid reactions and sample handling under inert conditions are undertaken here. Sample containers
allowing the introduction of gas from one or both ends are considered, enabling
the possibility of flow-through studies. Various containment materials are
evaluated, e.g. capillaries of single-crystal sapphire (Al2O3), quartz glass (SiO2),
stainless steel (S316) and glassy carbon (Sigradur K), and burst pressures are
calculated and tested for the different tube materials. In these studies, high
hydrogen pressure is generated with a metal hydride hydrogen compressor
mounted in a closed system, which allows reuse of the hydrogen gas. The
advantages and design considerations of the in situ cells are discussed and their
usage is illustrated by a case study.
Original languageEnglish
JournalJournal of Applied Crystallography
Volume48
Pages (from-to)1234-1241
Number of pages8
ISSN0021-8898
DOIs
StatePublished - 2015

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