EPR study of the H2O2 interaction with TiO2; evidence for a novel S=1 surface radical pair

被引:22
作者
Murphy, DM
Griffiths, EW
Rowlands, CC
Hancock, FE
Giamello, E
机构
[1] ICI KATALCO,RES TECHNOL & ENGN,BILLINGHAM TS23 1LB,CLEVELAND,ENGLAND
[2] UNIV TURIN,DIPARTIMENTO CHIM INORGAN FIS & MAT,I-10125 TURIN,ITALY
关键词
D O I
10.1039/a705856j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
H2O2 reacts with rutile TiO2 powder forming not only surface O-2(-) anions but also two newly identified surface S = 1 triplet radical anion pairs composed of two interacting O- ...O- centers characterised by the EPR spin Hamiltonian parameters of g(iso) = 2.0104 and D = 13.7 mT for triplet 1 and g(iso) = 2.0064 and D = 12.7 mT for triplet 2.
引用
收藏
页码:2177 / 2178
页数:2
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