Δ-MnO2 with an ultrahigh Mn4+ fraction is highly active and stable for catalytic wet air oxidation of phenol under mild conditions. Issue 15 (5th July 2017)

• Record Type: Journal Article
• Authors: Ma, Changjian; Wen, Yaoyao; Rong, Chengli; Zhang, Nuowei; Zheng, Jinbao; Chen, Bing H.
• Is Part Of: Catalysis science & technology. Volume 7:Issue 15(2017)
• Page Start: 3200
• Page End: 3204
• Publication Date: 2017-07-05
• Subjects: Catalysis -- Periodicals; 541.395
• DOI: 10.1039/c7cy00774d
• Languages: English
• ISSNs: 2044-4753

Abstract

Abstract : The self-reactivated δ-MnO2 catalyst was developed, and showed high activity and stability for the CWAO of phenol at a very low temperature. Abstract : δ-MnO2 with a very high amount of Mn 4+ showed high catalytic activity and stability for the catalytic wet air oxidation (CWAO) of phenol at a very low temperature of 70 °C. The abundance of Mn 4+ and reactive surface oxygen species in this catalyst, its resistance to Mn leaching, and its repeatable Mn 4+ /Mn 3+ (Mn 4+ /Mn 2+ ) redox cycles contributed greatly to its remarkable catalytic performance.