Preparation of porous carbon nanofibers with controllable pore structures for low-concentration NO removal at room temperature

WANG Ming-xi; GUO Ze-yu; HUANG Zheng-hong; KANG Fei-yu

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Article Navigation > New Carbon Mater. > 2016 > 31(3): 277-286

WANG Ming-xi, GUO Ze-yu, HUANG Zheng-hong, KANG Fei-yu. Preparation of porous carbon nanofibers with controllable pore structures for low-concentration NO removal at room temperature. New Carbon Mater., 2016, 31(3): 277-286.

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Preparation of porous carbon nanofibers with controllable pore structures for low-concentration NO removal at room temperature

1.
Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Xiongchu Avenue 693, Wuhan 430074, China;
2.
Lab of Advanced Materials, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
3.
School of Materials Science and Art Design, Inner Mongolia Agriculture University, Hohhot 010010, China

Funds: Cooperative Project JST-MOST (2011DFA50430, 2008DFA51410).

Received Date: 2016-05-08
Accepted Date: 2016-06-28
Rev Recd Date: 2016-06-04
Publish Date: 2016-06-28

Abstract

Abstract

Porous carbon nanofibers (PCNFs) with controllable pore structures for removing low-concentrations of NO at room temperature were prepared from electrospun polyacrylonitrile nanofibersby oxidative stabilization, carbonization and steam activation. The PCNFs had high surface areas and abundant micropores, which were favorable for the adsorption and catalytic oxidation of NO at ambient temperature. The diameter of the fibers and their pore structure were tailored by adjusting the concentrations of polyacrylonitrile, and the spinning and activation parameters. Their performance in the removal of low-concentration NO was strongly dependent on their pore structure and fiber diameter. The highest NO removal ratio for PCNFs activated at 900℃, which had an average diameter of 175 nm, reached 29.7% when the inlet NO concentration was 20 ppm.
- Porous carbon nanofibers (PCNFs),
- NO removal,
- Controllable texture,
- Catalytic oxidation

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References

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