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A review of the preparation and applications of MnO2 composites in formaldehyde oxidation
Shengnan Guan,Wenzhi Li,Jianru Ma,Yanyan Lei,Yuanshuai Zhu,Qifu Huang,Xiaomeng Dou 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.66 No.-
This paper reviews several important preparation methods, and several kinds of MnO2 composites, which is efficient in formaldehyde catalytic oxidation. The preparation of MnO2 composites discussed in this article refer to sol–gel method, rheological phase reaction method, micro-emulsion method, chemical coprecipitation method, solid-phase synthesis and template method. After a presentation of methods for the preparation of MnO2, a review of the performance on formaldehyde catalytic oxidation over (I) manganese oxides; (II) metal–MnO2 oxide composites; (III) graphene–MnO2 composites is provided. The mechanisms for catalytic oxidation of HCHO over MnO2 composites, future directions and potential hotspots are also discussed to facilitate understanding.