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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 31, Number 4
JKCSEZ 31(4)
August 20, 1987

Title	Superacidic Property of ZrO2 Modified with Sulfur Compounds 황화합물로 개질된 ZrO2의 초강산 성질
Author	Jong Rack Sohn, Hae Won Kim, Jong Taik Kim 손종락, 김해원, 김종택
Keywords
Abstract	ZrO2의 표면을 H2SO4로 처리하거나 SO2, H2S, CS2로 처리한 후 산화시킴으로 개질하였다. 처리된 황화합물의 산화종과 산화상태를 적외선분광법과 X-선광전자분광법으로 조사하였다. 처리된 황화합물을 산화시킨 후에는 사용된 황화합물의 종류에는 관계없이 개질된 ZrO2는 모두 강한 산성질을 나타내었다. 개질된 ZrO2가 초강산의 성질을 나타내는 것은 가장 높은 산화상태의 황(SO42-)에 기인하였다. ZrO2 was modified by treating with H2SO4 and by treating witb SO2, H2S, and CS2 followed by oxidation. The oxidized species and oxidation state of sulfur compounds were investigated by infrared and X-ray photoelectron spectroscopies. The generation of strong acidity of modified ZrO2 was independent of the sulfur source after oxidation. The sulfur (SO42-) in the highest oxidation state was responsible for the superacidic property of the modified ZrO2.
Page	322 - 327
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