Issue 74, 2016, Issue in Progress
From the journal:

RSC Advances

Performance optimization of a MnO2/carbon nanotube substrate for efficient catalytic oxidation of low-concentration NO at room temperature†

Tao Zhang,a   Dongdong Wang,d   Zhenyuan Gao,a   Kunfeng Zhao,a   Yousong Gu,c   Yue Zhangc  and  Dannong Heab  

a National Engineering Research Center for Nanotechnology, Shanghai, China

b School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai, China

c State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, China

d Whaley Technology Co., Ltd, Shanghai, China

Abstract

Modified nanosheet (NS) MnO2 upon carbon nanotubes (CNT) has been synthesized via doping methods or acid treatment during a hydrothermal reaction. Compared to other mixed oxides (MnO2/CeO2, MnO2/ZrO2, MnO2/TiO2), the MnO2/CNT series has higher surface areas and better activity on the oxidation of low-concentration (10 ppm) NO at room temperature. In addition, the acidulated MnO2/CNT shows high NO selectivity to NO2 for surface acidity promotes the dissociative adsorption of O2. What's more, Ti-doped MnO2/CNT has high stability in a moist stream of simulated feed gas with the increase of H2O desorption. It proves that the surface hydroxyls contribute to NO adsorption and provide an oxygen source for the process of NO oxidation. The primary reaction pathway was proposed to be responsible for the catalytic conversion of NO and O2 into NO2.

Graphical abstract: Performance optimization of a MnO2/carbon nanotube substrate for efficient catalytic oxidation of low-concentration NO at room temperature

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Article information

DOI
https://doi.org/10.1039/C6RA15192B
Article type
Paper
Submitted
11 Jun 2016
Accepted
19 Jul 2016
First published
25 Jul 2016

RSC Adv., 2016,6, 70261-70270

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Performance optimization of a MnO2/carbon nanotube substrate for efficient catalytic oxidation of low-concentration NO at room temperature

T. Zhang, D. Wang, Z. Gao, K. Zhao, Y. Gu, Y. Zhang and D. He, RSC Adv., 2016, 6, 70261 DOI: 10.1039/C6RA15192B

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