Tungstated zirconia catalyzed bromination of phenol red under nearly neutral solution

She Tin Wong, Chi Chau Hwang, Chung Yuan Mou

研究成果: 雜誌貢獻文章同行評審

35 引文 斯高帕斯(Scopus)

摘要

The performance of tungstated zirconia catalysts prepared by co-precipitation (WZ) and impregnation (W/m-ZrO2) techniques in phenol red bromination reaction was tested. Both types of catalysts showed excellent activity in this reaction in aqueous solution. The activity of WZ increases as the W loading decreases and the most active 0.6WZ catalyst contained highly dispersed WOx of low surface density on zirconia. The W/m-ZrO2 catalysts showed even higher activity in this reaction but maximum performance is observed for 1.3W/m-ZrO2 instead. The active site for the redox reaction is probably the monomer or dimer of WO x with a single oxo group whereas low surface density of WO x provides enough space on zirconia for the adsorption of phenol red without blocking the redox sites.

原文英語
頁(從 - 到)1-8
頁數8
期刊Applied Catalysis B: Environmental
63
發行號1-2
DOIs
出版狀態已發佈 - 3月 22 2006
對外發佈

ASJC Scopus subject areas

  • 催化
  • 環境科學 (全部)
  • 製程化學與技術

指紋

深入研究「Tungstated zirconia catalyzed bromination of phenol red under nearly neutral solution」主題。共同形成了獨特的指紋。

引用此