AN X-RAY PHOTOELECTRON-SPECTROSCOPY STUDY OF OXIDES OF ARSENIC SUPPORTED ON TIO2

被引：56

作者：

LANGE, F ^{[1
]}

SCHMELZ, H ^{[1
]}

KNOZINGER, H ^{[1
]}

机构：

[1] SIEMENS AG,BEREICH ENERGIEERZEUGUNG,W-8000 MUNICH 83,GERMANY

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 1991年 / 57卷 / 3-4期

关键词：

D O I：

10.1016/0368-2048(91)80017-O

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

XPS binding energies for the 3d levels of As5+ and As3+ have been determined to be 46.0 +/- 0.17 eV and 44.6 +/- 0.13 eV respectively, for oxides of arsenic being adsorbed on titania. When As2O3 is deposited on titania from the vapour phase it is oxidized to form As5+ species, probably orthoarsenate (V) species which replace OH groups on the titania surface. An X-ray induced reduction of these pentavalent As surface species during XPS data acquisition was observed.

引用

页码：307 / 315

页数：9

共 16 条

[1] RELAXATION DURING PHOTOEMISSION AND LMM AUGER DECAY IN ARSENIC AND SOME OF ITS COMPOUNDS [J].

BAHL, MK ;

WOODALL, RO ;

WATSON, RL ;

IRGOLIC, KJ .

JOURNAL OF CHEMICAL PHYSICS, 1976, 64 (03) :1210-1218

[2]

BOEHM HP, 1983, CATALYSIS SCI TECHNO, V4, P31

[3]

Bosch H., 1988, CATAL TODAY, V2, P369, DOI DOI 10.1016/0920-5861(88)80002-6

[4]

Gutberlet H., 1988, VGB Kraftwerkstechnik (German Edition), V68, P287

[5] INTERACTION OF ARSENIOUS OXIDE WITH DENOX-CATALYSTS - AN X-RAY ABSORPTION AND DIFFUSE REFLECTANCE INFRARED-SPECTROSCOPY STUDY [J].

HILBRIG, F ;

GOBEL, HE ;

KNOZINGER, H ;

SCHMELZ, H ;

LENGELER, B .

JOURNAL OF CATALYSIS, 1991, 129 (01) :168-176

[6]

HOPFENGARTNER G, 1991, COMMUNICATION

[7] MEASUREMENTS OF CHEMICAL SHIFTS IN PHOTOELECTRON SPECTRA OF ARSENIC AND BROMINE COMPOUNDS [J].

HULETT, LD ;

CARLSON, TA .

APPLIED SPECTROSCOPY, 1971, 25 (01) :33-&

[8]

LEONHARDT G, 1972, PHYS STATUS SOLIDI, V60, P241

[9]

MERRIFIELD RN, 1985, ACS SYM SER, V288, P1

[10] ESCA STUDIES OF GA, AS, GAAS, GA2O3, AS2O3 AND AS2O5 [J].

MIZOKAWA, Y ;

IWASAKI, H ;

NISHITANI, R ;

NAKAMURA, S .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1978, 14 (02) :129-141

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