High catalytic activity for formaldehyde oxidation of an interconnected network structure composed of δ-MnO2 nanosheets and γ-MnOOH nanowires

被引：0
作者：
Ying Tao
Rong Li
Ai-Bin Huang
Yi-Ning Ma
Shi-Dong Ji
Ping Jin
Hong-Jie Luo
机构：
[1] Chinese Academy of Sciences,State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics
[2] Shanghai University,Institute for the Conservation of Culture Heritage
[3] University of Chinese Academy of Sciences,Department of Criminal Science and Technology
[4] Jiangsu Police Institute,undefined
来源：
Advances in Manufacturing | 2020年 / 8卷
关键词：
MnO; Formaldehyde; Catalytic oxidation; Hydrothermal synthesis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Among the transition metal oxide catalysts, manganese oxides have great potential for formaldehyde (HCHO) oxidation at ambient temperature because of their high activity, nontoxicity, low cost, and polybasic morphologies. In this work, a MnO2-based catalyst (M-MnO2) with an interconnected network structure was successfully synthesized by a one-step hydrothermal method. The M-MnO2 catalyst was composed of the main catalytic agent, δ-MnO2 nanosheets, dispersed in a nonactive framework material of γ-MnOOH nanowires. The catalytic activity of M-MnO2 for HCHO oxidation at room temperature was much higher than that of the pure δ-MnO2 nanosheets. This is attributed to the special interconnected network structure. The special interconnected network structure has high dispersion and specific surface area, which can provide more surface active oxygen species and higher surface hydroxyl groups to realize rapid decomposition of HCHO.
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页码：429 / 439
页数：10
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