Formation of gaseous intermediates in titanium (IV) chloride plasma oxidation

B. Karlemo, Pertti Koukkari, J. Paloniemi

Research output: Contribution to journalArticleScientificpeer-review

26 Citations (Scopus)

Abstract

A number of experiments were made to study tire gas phase reactions that precede TiO2 aerosol formation from TiCl4 in an O2/Ar plasma. The gaseous .species from the plasma-aerosol reactor were detected by a high-resolution QP mass spectrometer. The feed ratio of Ar: O2: TiCl4 was typically 4. l: 0.1. Under such conditions both titanium oxychlorides and oxides of chlorine could be recognized. In the reactor the decay of oxychlorides from the reactions it-as fast, compared to the decay of chlorine. A rough estimate of the quantities of both ClO(g) and Ti0Clx(g) metastable species present is given. TiCl4 oxidation reaction mechanisms with mentioned oxychlorides as intermediates are discussed The theoretical calculations were conducted in tire temperature range from 800 to 3500°C.
Original languageEnglish
Pages (from-to)59-77
Number of pages19
JournalPlasma Chemistry and Plasma Processing
Volume16
Issue number1
DOIs
Publication statusPublished - 1996
MoE publication typeA1 Journal article-refereed

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Titanium
Tires
Chlorine
Aerosols
Chlorides
tires
titanium
chlorides
Plasmas
Oxidation
oxidation
chlorine
aerosols
Mass spectrometers
reactors
decay
mass spectrometers
Oxides
Gases
vapor phases

Cite this

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title = "Formation of gaseous intermediates in titanium (IV) chloride plasma oxidation",
abstract = "A number of experiments were made to study tire gas phase reactions that precede TiO2 aerosol formation from TiCl4 in an O2/Ar plasma. The gaseous .species from the plasma-aerosol reactor were detected by a high-resolution QP mass spectrometer. The feed ratio of Ar: O2: TiCl4 was typically 4. l: 0.1. Under such conditions both titanium oxychlorides and oxides of chlorine could be recognized. In the reactor the decay of oxychlorides from the reactions it-as fast, compared to the decay of chlorine. A rough estimate of the quantities of both ClO(g) and Ti0Clx(g) metastable species present is given. TiCl4 oxidation reaction mechanisms with mentioned oxychlorides as intermediates are discussed The theoretical calculations were conducted in tire temperature range from 800 to 3500°C.",
author = "B. Karlemo and Pertti Koukkari and J. Paloniemi",
note = "Project code: K5Su00428",
year = "1996",
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journal = "Plasma Chemistry and Plasma Processing",
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Formation of gaseous intermediates in titanium (IV) chloride plasma oxidation. / Karlemo, B.; Koukkari, Pertti; Paloniemi, J.

In: Plasma Chemistry and Plasma Processing, Vol. 16, No. 1, 1996, p. 59-77.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Formation of gaseous intermediates in titanium (IV) chloride plasma oxidation

AU - Karlemo, B.

AU - Koukkari, Pertti

AU - Paloniemi, J.

N1 - Project code: K5Su00428

PY - 1996

Y1 - 1996

N2 - A number of experiments were made to study tire gas phase reactions that precede TiO2 aerosol formation from TiCl4 in an O2/Ar plasma. The gaseous .species from the plasma-aerosol reactor were detected by a high-resolution QP mass spectrometer. The feed ratio of Ar: O2: TiCl4 was typically 4. l: 0.1. Under such conditions both titanium oxychlorides and oxides of chlorine could be recognized. In the reactor the decay of oxychlorides from the reactions it-as fast, compared to the decay of chlorine. A rough estimate of the quantities of both ClO(g) and Ti0Clx(g) metastable species present is given. TiCl4 oxidation reaction mechanisms with mentioned oxychlorides as intermediates are discussed The theoretical calculations were conducted in tire temperature range from 800 to 3500°C.

AB - A number of experiments were made to study tire gas phase reactions that precede TiO2 aerosol formation from TiCl4 in an O2/Ar plasma. The gaseous .species from the plasma-aerosol reactor were detected by a high-resolution QP mass spectrometer. The feed ratio of Ar: O2: TiCl4 was typically 4. l: 0.1. Under such conditions both titanium oxychlorides and oxides of chlorine could be recognized. In the reactor the decay of oxychlorides from the reactions it-as fast, compared to the decay of chlorine. A rough estimate of the quantities of both ClO(g) and Ti0Clx(g) metastable species present is given. TiCl4 oxidation reaction mechanisms with mentioned oxychlorides as intermediates are discussed The theoretical calculations were conducted in tire temperature range from 800 to 3500°C.

U2 - 10.1007/BF01465217

DO - 10.1007/BF01465217

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EP - 77

JO - Plasma Chemistry and Plasma Processing

JF - Plasma Chemistry and Plasma Processing

SN - 0272-4324

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ER -