REACTIONS OF HALOGENATED HYDROCARBONS AT PLATINUM GROUP-METALS .1. A DEMS STUDY OF THE ADSORPTION OF CH3CCL3

被引：14

作者：

BALTRUSCHAT, H ^{[1
]}

BELTOWSKABRZEZINSKA, M ^{[1
]}

DULBERG, A ^{[1
]}

机构：

[1] UNIV POZNAN,INST CHEM,PL-60780 POZNAN,POLAND

来源：

ELECTROCHIMICA ACTA | 1993年 / 38卷 / 2-3期

关键词：

PLATINUM ELECTRODE; DISSOCIATIVE ADSORPTION; ELECTRODESORPTION; MASS SPECTROMETRY; CHLORINATED HYDROCARBONS;

D O I：

10.1016/0013-4686(93)85140-T

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical adsorption of 1,1,1,trichloroethane on Pt in sulphuric acid was studied by on-line mass spectrometry. The adsorption is highest in the hydrogen region suggesting a reductive adsorption process. About 75% of the adsorbate can be desorbed cathodically; the products being ethane, butane and, to minor degree, hexane and possibly higher alkanes. The ratio of these products depends on the adsorption potential. The only oxidation product is CO2. H/D-exchange experiments suggest that the adsorbate is an ethylidyne species.

引用

页码：281 / 284

页数：4

共 8 条

[1] ELECTROCHEMICAL DETECTION OF ORGANIC GASES - THE DEVELOPMENT OF A FORMALDEHYDE SENSOR [J].

BALTRUSCHAT, H ;

ANASTASIJEVIC, NA ;

BELTOWSKABRZEZINSKA, M ;

HAMBITZER, G ;

HEITBAUM, J .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1990, 94 (09) :996-1000

[2]

BALTRUSCHAT H, 1992, DECHEMA MONOGR, V125, P489

[3] Electroreduction of CCl4 at Platinum. Detection of an intermediate by DEMS [J].

BANSCH, B ;

BALTRUSCHAT, H ;

HEITBAUM, J .

ELECTROCHIMICA ACTA, 1988, 33 (10) :1479-1480

[4] DIFFERENTIAL ELECTROCHEMICAL MASS-SPECTROMETRY USING SMOOTH ELECTRODES - ADSORPTION AND H/D-EXCHANGE REACTIONS OF BENZENE ON PT [J].

HARTUNG, T ;

BALTRUSCHAT, H .

LANGMUIR, 1990, 6 (05) :953-957

[5] ELECTROCATALYTIC REDUCTION OF SOME HALOGENATED DERIVATIVES OF METHANE AND ACETIC-ACID AT A PLATINIZED PLATINUM-ELECTRODE IN ACID-MEDIUM [J].

HORANYI, G ;

TORKOS, K .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1982, 140 (02) :329-346

[6] MODERN CONCEPTS IN SURFACE SCIENCE AND HETEROGENEOUS CATALYSIS [J].

SOMORJAI, GA .

JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (03) :1013-1023

[7] DIFFERENTIAL ELECTROCHEMICAL MASS-SPECTROSCOPY (DEMS) - A NEW METHOD FOR THE STUDY OF ELECTRODE PROCESSES [J].

WOLTER, O ;

HEITBAUM, J .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1984, 88 (01) :2-6

[8] INVESTIGATION OF CHLOROFORM ADSORPTION ON A PLATINUM-ELECTRODE BY THE TRACER METHOD [J].

ZUCCHINI, GL ;

ANDREEV, VN ;

KAZARINOV, VE .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1986, 210 (01) :161-166

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