Studies on superoxide O2- species on the interaction of TS-1 zeolite with H2O2

被引：32

作者：

Zhao, Q ^{[1
]}

Bao, XH

Wang, Y

Lin, LW

Gang, L

Guo, XW

Wang, XS

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

[2] Dalian Univ Technol, Lab Comprehensive Utilizat Carbonaceous Resources, Dalian 116012, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2000年 / 157卷 / 1-2期

关键词：

superoxide O-2(-) species; ESR; titanium silicalite-1; adsorption;

D O I：

10.1016/S1381-1169(00)00144-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The interactions of silicalite-1 (S-1), titanium silicalite -1 (TS-1), Ti-Si gel and anatase with H2O2 were investigated by ESR technique. It was found that different Ti-O-2(-) species could be formed over TS-1 zeolite and Ti-Si gel, which are dependent on the local structures of Ti atoms. The decay of O-2(-) species on these samples depicted that O-2(-) species on framework Ti sites are much more unstable than O-2(-) species on dispersed extra framework Ti sites. The reaction of O-2(-) species with phenol confirmed that O-2(-) species on framework Ti sites are highly active. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：265 / 268

页数：4

共 13 条

[1] BELLUSSI G, 1994, STUD SURF SCI CATAL, V85, P177
[2] EPOXIDATION OF LOWER OLEFINS WITH HYDROGEN-PEROXIDE AND TITANIUM SILICALITE
CLERICI, MG
INGALLINA, P
[J]. JOURNAL OF CATALYSIS, 1993, 140 (01) : 71 - 83
[3] DRS UV-VIS AND EPR SPECTROSCOPY OF HYDROPEROXO AND SUPEROXO COMPLEXES IN TITANIUM SILICALITE
GEOBALDO, F
BORDIGA, S
ZECCHINA, A
GIAMELLO, E
LEOFANTI, G
PETRINI, G
[J]. CATALYSIS LETTERS, 1992, 16 (1-2) : 109 - 115
[4] EPR evidence for one-electron oxidation of phenols by a dimeric manganese(IV/IV) triazacyclononane complex in the presence and absence of hydrogen peroxide
Gilbert, BC
Kamp, NWJ
Smith, JRL
Oakes, J
[J]. JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1997, (11): : 2161 - 2165
[5] PHYSICOCHEMICAL AND CATALYTIC PROPERTIES OF TITANIUM SILICALITES
HUYBRECHTS, DRC
BUSKENS, PL
JACOBS, PA
[J]. JOURNAL OF MOLECULAR CATALYSIS, 1992, 71 (01): : 129 - 147
[6] LI G, 1998, J DALIAN U TECHNOL, V38, P363
[7] LI G, 1999, CHIN J CATAL, V20, P99
[8] Lunsford J.H., 1972, Adv. Catal., V22, P265
[9] MURPHY DM, 1997, CHEM COMMUN, V22, P2177
[10] Notari B, 1996, ADV CATAL, V41, P253, DOI 10.1016/S0360-0564(08)60042-5

← 1 2 →