NDLI: Porous MnO$_{2}$/CNT catalysts with a large specific surface area for the decomposition of hydrogen peroxide

Content Provider	Springer Nature Link
Author	Kim, Min June Lee, Kang Bong Seo, Myung gi Lee, Kwan Young
Copyright Year	2017
Abstract	H$_{2}$O$_{2}$ vapor sterilization is an effective and safe method for removing various pathogens. To improve the efficiency of this technique, the time required for sterilization must be shortened. The aeration time constitutes a large portion of the total sterilization time; therefore, the development of a catalyst for H$_{2}$O$_{2}$ decomposition is necessary. Bulk MnO$_{2}$ is typically used in H$_{2}$O$_{2}$ decomposition, but it has a low specific surface area. To increase H$_{2}$O$_{2}$ decomposition activity, specific surface area and electron transfer ability of catalyst need improvement. In this study, MnO$_{2}$/CNT(x), where x denotes the weight ratio of CTAB to H$_{2}$O in the catalyst preparation, was synthesized using a soft template method with varying amounts of the template. Overall, the catalyst specific surface area remarkably increased to 190–200 m$^{2}$/g from 0.043 m$^{2}$/g for bulk MnO$_{2}$ and these increased surface areas resulted in superior H$_{2}$O$_{2}$ decomposition activity. Among the CNT-supported catalysts tested, MnO$_{2}$/CNT (1.0) exhibited the highest activity, which was 570 times that of bulk MnO$_{2}$. Aeration times were also calculated with some assumptions and the aeration can be finished within 1 hr (bulk MnO$_{2}$ needs about 25 hr).
Starting Page	2147
Ending Page	2153
Page Count	7
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	34
Issue Number	8
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2017-06-22
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Manganese Oxide Catalyst Soft Template Method Large Surface Area Hydrogen Peroxide Decomposition Aeration Industrial Chemistry/Chemical Engineering Catalysis Materials Science Biotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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