data_global _amcsd_formula_title 'La2 Ni O4.24' loop_ _publ_author_name 'Demourgues A' 'Wattiaux A' 'Grenier J' 'Pouchard M' 'Soubeyroux J' 'Dance J' 'Hagenmuller P' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 105 _journal_year 1993 _journal_page_first 458 _journal_page_last 468 _publ_section_title ; Electrochemical preparation and structural characterization of La2NiO4+d phases (0