Hong, SB Kim, SJ Choi, YS Uh, YS 2024-01-21T18:41:51Z 2024-01-21T18:41:51Z 2022-01-11 1997-01 0167-2991 https://pubs.kist.re.kr/handle/201004/143994 Electron spin resonance (ESR) spectra of the superoxide ion, O-2(-), generated in dehydroxylated aluminophosphate (AlPO4) molecular sieves and related materials are presented. Among the molecular sieves studied here, the extra-large-pore VPI-5 shows the largest spin concentration of O-2(-), which corresponds to 2.9 x 10(18) ions per gram. Analysis of the g values of O-2(-) in AlPO4 molecular sieves reveals that the crystal field splittings, Delta, of the adsorbed O-2(-) are in the range of 1.32-1.60 eV and suggests that the crystal field interaction is dependent on the pore size of the molecular sieves. English ELSEVIER SCIENCE BV Electron spin resonance studies of O-2(-) adsorbed on aluminophosphate molecular sieves Article 1 PROGRESS IN ZEOLITE AND MICROPOROUS MATERIALS, PTS A-C, v.105, pp.779 - 786 PROGRESS IN ZEOLITE AND MICROPOROUS MATERIALS, PTS A-C 105 779 786 scie scopus A1997BJ22G00096 Chemistry, Physical Chemistry Article; Proceedings Paper