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

Haiqian Zhao; Jihui Gao; Wei Zhou; Zhonghua Wang; Shaohua Wu

doi:10.11949/j.issn.0438-1157.20140976

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

Haiqian Zhao
, Jihui Gao^*
, Wei Zhou
, Zhonghua Wang
, Shaohua Wu

^*Corresponding author for this work

School of Energy Science and Engineering, Harbin Institute of Technology
Daqing Petroleum Institute

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

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).

Original language	English
Pages (from-to)	449-454
Number of pages	6
Journal	Huagong Xuebao/CIESC Journal
Volume	66
Issue number	1
DOIs	https://doi.org/10.11949/j.issn.0438-1157.20140976
State	Published - 1 Jan 2015
Externally published	Yes

Keywords

Fe/HO system
Invalid decomposition
NO
Radical

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10.11949/j.issn.0438-1157.20140976

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title = "Roles of varied radicals in NO oxidation by Fe2+/H2O2 system",

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).",

keywords = "Fe/HO system, Invalid decomposition, NO, Radical",

author = "Haiqian Zhao and Jihui Gao and Wei Zhou and Zhonghua Wang and Shaohua Wu",

year = "2015",

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doi = "10.11949/j.issn.0438-1157.20140976",

language = "英语",

volume = "66",

pages = "449--454",

journal = "Huagong Xuebao/CIESC Journal",

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TY - JOUR

T1 - Roles of varied radicals in NO oxidation by Fe2+/H2O2 system

AU - Zhao, Haiqian

AU - Gao, Jihui

AU - Zhou, Wei

AU - Wang, Zhonghua

AU - Wu, Shaohua

PY - 2015/1/1

Y1 - 2015/1/1

N2 - 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).

AB - 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).

KW - Fe/HO system

KW - Invalid decomposition

KW - NO

KW - Radical

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U2 - 10.11949/j.issn.0438-1157.20140976

DO - 10.11949/j.issn.0438-1157.20140976

M3 - 文章

AN - SCOPUS:85050577950

SN - 0438-1157

VL - 66

SP - 449

EP - 454

JO - Huagong Xuebao/CIESC Journal

JF - Huagong Xuebao/CIESC Journal

IS - 1

ER -

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

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Keywords

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