Nitrogen-Doped Pitch-Based Activated Carbon Fibers with Multi-Dimensional Metal Nanoparticle Distribution for the Effective Removal of NO

双金属片 活性炭 材料科学 催化作用 选择性催化还原 碳纳米纤维 纳米颗粒 化学工程 氮氧化物 金属 无机化学 碳纳米管 纳米技术 冶金 化学 燃烧 有机化学 吸附 工程类
作者
Sheng-kai Chang,Zhuo Han,Jianxiao Yang,Xuli Chen,Jiahao Liu,Yue Liu,Jun Li
出处
期刊:Catalysts [MDPI AG]
卷期号:12 (10): 1192-1192 被引量:6
标识
DOI:10.3390/catal12101192
摘要

The design of catalytic materials for NOX removal by the selective catalytic reduction with NH3 (NH3-SCR) has been a focus of research in the field of waste gas treatment. In this work, pitch-based activated carbon fibers (ACFs) were impregnated with copper nitrate and cerium nitrate, and then the ACFs that were loaded with bimetallic nanoparticles (ACF@Cu/Ce) were obtained after the pyrolyzation and reduction were performed. Moreover, the ACF@Cu/Ce were furtherly treated through the chemical vapor deposition and NH3 activation, through which the N-doped carbon nanofibers (N-CNFs) were grown on the surface of the ACFs. Thus, the catalytic material with a multi-dimensional metal nanoparticle distribution and nitrogen-rich network structure, namely the N-CNF/ACF@Cu/Ce, was constructed. In the NH3-SCR reaction, the NO conversion of the N-CNF/ACF@Cu/Ce could be maintained at about 72~81% in a wide temperature window of 295~495 °C, which enabled the N-CNF/ACF@Cu/Ce to meet the requirements of the practical applications.
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