Neutron powder diffraction and difference MEM analysis of D $_{2}$ O- and H $_{2}$ O-dissolved Ba(Sn,In)O $_{3}$ proton conductors, 1; Theoretical basis and spatial resolution of difference MEM analysis

Nagasaki, Takanori*; Shiotani, Shinya*; Igawa, Naoki ; Iwasaki, Kota*; Yoshino, Masahito*; Fukazawa, Hiroshi; Utsumi, Wataru

We propose a new method, a difference maximum entropy method (MEM) analysis of the neutron diffraction data, for revealing the detailed structure around hydrogen atoms in proton-conducting oxides. This MEM analysis uses the difference between the structure factors of D $_{2}$ O- and H $_{2}$ O- dissolved crystals. Simulation for Ba(Sn,In)O $_{3}$ -D $_{2}$ O/H $_{2}$ O demonstrate that it not only provides the distribution of hydrogen atoms alone, but also improves the spatial resolution of MEM mapping around hydrogen atoms.

Language	:	Japanese
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Meeting title	:	第47回セラミックス基礎科学討論会
Held date	:	2009/01
Location (city)	:	大阪
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	JRR-3M(研究炉3)
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Article of JAEA R&D Review	:
Cooperating Institute	:	名古屋大学

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Registration No. : BB20083027
JAEA Abstracts No. :
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Neutron powder diffraction and difference MEM analysis of DO- and HO-dissolved Ba(Sn,In)O proton conductors, 1; Theoretical basis and spatial resolution of difference MEM analysis

Neutron powder diffraction and difference MEM analysis of D $_{2}$ O- and H $_{2}$ O-dissolved Ba(Sn,In)O $_{3}$ proton conductors, 1; Theoretical basis and spatial resolution of difference MEM analysis