Roles of varied radicals in NO oxidation by Fe2+/H2O2 system

ZHAO Haiqian; GAO Jihui; ZHOU Wei; WANG Zhonghua; WU Shaohua

doi:10.11949/j.issn.0438-1157.20140976

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Roles of varied radicals in NO oxidation by Fe²⁺/H₂O₂ system

更新时间：2025-12-10

- Roles of varied radicals in NO oxidation by Fe²⁺/H₂O₂ system
- CIESC Journal Issue 1, Pages: 449-454(2015)
- 作者机构：
  
  1. 哈尔滨工业大学能源科学与工程学院,黑龙江,哈尔滨,150001
  2. 东北石油大学土木建筑工程学院,黑龙江,大庆,163318
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20140976
  CLC： 511
- Online First：05 January 2015，
  
  Published：05 January 2015
- 稿件说明：
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ZHAO Haiqian, GAO Jihui, ZHOU Wei, et al. Roles of varied radicals in NO oxidation by Fe²⁺/H₂O₂ system[J]. CIESC Journal, 2015, (1): 449-454. DOI: 10.11949/j.issn.0438-1157.20140976.
DOI：

ZHAO Haiqian, GAO Jihui, ZHOU Wei, et al. Roles of varied radicals in NO oxidation by Fe²⁺/H₂O₂ system[J]. CIESC Journal, 2015, (1): 449-454. DOI: 10.11949/j.issn.0438-1157.20140976. DOI：

摘要

Fe2+/H2O2体系可分解产生多种氧化性自由基

主要包括O2-·、·OH和HO2·。本文实验研究了O2-·、·OH及HO2·在Fe2+/H2O2体系氧化NO气体过程中的作用。结果表明:在本实验条件下

O2-·对NO气体的氧化作用不明显;·OH及HO2·是该体系氧化NO气体的主要活性物质

其中·OH的氧化作用更大。加快自由基的生成速率可以增强Fe2+/H2O2体系对NO气体的氧化能力

但O2的生成速率同时加快。只有少量·OH及HO2·参与NO的氧化

·OH与HO2·之间的快速反应是Fe2+/H2O2体系氧化NO过程中H2O2利用率低的主要原因。

Abstract

Fe2+/H2O2 system contains a variety of oxidizing free radicals

such as O2-·

·OH and HO2·. In this paper

the behaviors of O2-·

·OH and HO2· played in NO oxidation by Fe2+/H2O2 system were investigated experimentally. The results demonstrated that the ability oxidizing NO of O2-· was weak at the experimental conditions adopted by this paper

while ·OH and HO2· were the main active species for NO oxidation in Fe2+/H2O2 system

and the role of ·OH was more important. Acceleration of generating radical rate could not only promote the ability oxidizing NO gas of Fe2+/H2O2 system

but also accelerated O2 generation rate. Only a small amount of ·OH and HO2· participate in NO oxidation. In the process of NO oxidation by Fe2+/H2O2 system

the rapid reaction between ·OH and HO2· was the major reason of for low utilization of H2O2 (invalid decomposition).

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