Spin trapping of hydroxyl radicals on Cu/HY zeolites suspended in aqueous solution

被引:15
作者
Haeusser, Anette [1 ]
Trautmann, Martin [1 ]
Roduner, Emil [1 ]
机构
[1] Univ Stuttgart, Inst Phys Chem, D-70569 Stuttgart, Germany
关键词
PHASE CATALYTIC-OXIDATION; HYDROGEN-ATOMS; ZSM-5; ZEOLITES; BENZENE; PHENOL; WATER; ION; REDUCTION; CONSTANTS; RESONANCE;
D O I
10.1039/c1cc11181g
中图分类号
O6 [化学];
学科分类号
070301 [无机化学];
摘要
Hydroxyl radical intermediates are trapped in calcined Cu/HY zeolites in the presence of oxygen and water. This suggests that hydrogen peroxide is formed in situ from oxygen. Bronsted acids enhance the formation of the radicals.
引用
收藏
页码:6954 / 6956
页数:3
相关论文
共 24 条
[1]
Adsorption of Benzene to Copper in CuHY Zeolite [J].
Archipov, Tanja ;
Santra, Shampa ;
Ene, Augusta B. ;
Stoll, Hermann ;
Rauhut, Guntram ;
Roduner, Emil .
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (10) :4107-4116
[2]
Radical cations from nitrone spin-traps: Reaction with water to give OH adducts [J].
Bhattacharjee, S ;
Khan, MN ;
Chandra, H ;
Symons, MCR .
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1996, (12) :2631-2634
[3]
CRITICAL-REVIEW OF RATE CONSTANTS FOR REACTIONS OF HYDRATED ELECTRONS, HYDROGEN-ATOMS AND HYDROXYL RADICALS (.OH/.O-) IN AQUEOUS-SOLUTION [J].
BUXTON, GV ;
GREENSTOCK, CL ;
HELMAN, WP ;
ROSS, AB .
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1988, 17 (02) :513-886
[4]
QUANTITATIVE ASPECTS OF ELECTRON-SPIN-RESONANCE AND SPIN TRAPPING OF HYDROXYL RADICALS AND HYDROGEN-ATOMS IN GAMMA-IRRADIATED AQUEOUS-SOLUTIONS [J].
CARMICHAEL, AJ ;
MAKINO, K ;
RIESZ, P .
RADIATION RESEARCH, 1984, 100 (02) :222-234
[5]
The reduction behavior of the Cu ion species exchanged into Y zeolite during the thermovacuum treatment [J].
Chen, HJ ;
Matsuoka, M ;
Zhang, JL ;
Anpo, M .
JOURNAL OF CATALYSIS, 2004, 228 (01) :75-79
[6]
Competitive Adsorption and Interaction of Benzene and Oxygen on Cu/HZSM5 Zeolites [J].
Ene, Augusta Bianca ;
Archipov, Tanja ;
Roduner, Emil .
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (09) :3688-3694
[7]
Spectroscopic Study of the Adsorption of Benzene on Cu/HZSM5 Zeolites [J].
Ene, Augusta Bianca ;
Archipov, Tanja ;
Roduner, Emil .
JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (34) :14571-14578
[8]
Adsorption of oxygen on copper in Cu/HZSM5 zeolites [J].
Ene, Augusta Bianca ;
Bauer, Matthias ;
Archipov, Tanja ;
Roduner, Emil .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (24) :6520-6531
[9]
Vibrational and thermodynamic properties of Ar, N2, O2, H2 and CO adsorbed and condensed into (H,Na)-Y zeolite cages as studied by variable temperature IR spectroscopy [J].
Gribov, EN ;
Cocina, D ;
Spoto, G ;
Bordiga, S ;
Ricchiardi, G ;
Zecchina, A .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2006, 8 (10) :1186-1196
[10]
One-step gas-phase catalytic oxidation of benzene to phenol with molecular oxygen over Cu-supported ZSM-5 zeolites [J].
Hamada, R ;
Shibata, Y ;
Nishiyama, S ;
Tsuruya, S .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5 (05) :956-965