Hydrogenolysis of CFC-12 (CF2Cl2) over Pd/γ-Al2O3 pretreated with HCFC-22 (CHF2Cl)

Byoung Sung Ahn, Sang Goo Jeon, Hyunjoo Lee, Kun You Park, Yong-Gun Shul

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The hydrogenolysis of CF2Cl2 (CFC-12) has been studied in the gas phase over Pd (3 wt.%)/γ-Al2O3. Pretreatment of the catalyst with CHF2Cl (HCFC-22) was found to significantly improve the catalytic activity and the catalyst lifetime. The formation of Pd-carbide was observed in the CHF2Cl-treated catalyst, and the presence of the palladium carbide is thought to enhance the selectivity to the CH2F2 and to prevent sintering of palladium. XRD, TEM and XPS were used to characterize the structure and the composition of Pd/Al2O3.

Original languageEnglish
Pages (from-to)87-93
Number of pages7
JournalApplied Catalysis A: General
Volume193
Issue number1-2
DOIs
Publication statusPublished - 2000 Feb 28

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Chlorofluorocarbons
Hydrogenolysis
Palladium
Catalysts
Carbides
Catalyst activity
Sintering
X ray photoelectron spectroscopy
Gases
Transmission electron microscopy
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Process Chemistry and Technology

Cite this

Ahn, Byoung Sung ; Jeon, Sang Goo ; Lee, Hyunjoo ; Park, Kun You ; Shul, Yong-Gun. / Hydrogenolysis of CFC-12 (CF2Cl2) over Pd/γ-Al2O3 pretreated with HCFC-22 (CHF2Cl). In: Applied Catalysis A: General. 2000 ; Vol. 193, No. 1-2. pp. 87-93.
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Hydrogenolysis of CFC-12 (CF2Cl2) over Pd/γ-Al2O3 pretreated with HCFC-22 (CHF2Cl). / Ahn, Byoung Sung; Jeon, Sang Goo; Lee, Hyunjoo; Park, Kun You; Shul, Yong-Gun.

In: Applied Catalysis A: General, Vol. 193, No. 1-2, 28.02.2000, p. 87-93.

Research output: Contribution to journalArticle

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AB - The hydrogenolysis of CF2Cl2 (CFC-12) has been studied in the gas phase over Pd (3 wt.%)/γ-Al2O3. Pretreatment of the catalyst with CHF2Cl (HCFC-22) was found to significantly improve the catalytic activity and the catalyst lifetime. The formation of Pd-carbide was observed in the CHF2Cl-treated catalyst, and the presence of the palladium carbide is thought to enhance the selectivity to the CH2F2 and to prevent sintering of palladium. XRD, TEM and XPS were used to characterize the structure and the composition of Pd/Al2O3.

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