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Generation and Release of OH Radicals from the Reaction of H2O with O-2 over Soot

文献类型：期刊论文

作者He, Guangzhi7; Ma, Jinzhu5,6,7; Chu, Biwu5,6,7; Hu, Renzhi4; Li, Hao7; Gao, Meng5,7; Liu, Yuan5,7; Wang, Yonghong7; Ma, Qingxin5,6,7; Xie, Pinhua4,5,6
刊名ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
出版日期2022-03-24
关键词Carbonaceous Surface OH Radicals Soot Surface Hydroxyls
ISSN号1433-7851
DOI10.1002/anie.202201638
通讯作者Zeng, Xiao Cheng(xzeng1@unl.edu) ; Francisco, Joseph S.(frjoseph@sas.upenn.edu) ; He, Hong(honghe@rcees.ac.cn)
英文摘要OH radicals in the air maintain the oxidizing power of the troposphere. A conventional view is that particulate matter (PM) in the atmosphere is a major sink of OH radicals, thereby lowering the oxidizing power of atmosphere in the event of high-level PM. By contrary, our joint experimental/theoretical study reveals a new mechanism for the generation of gaseous OH radicals by carbonaceous soot particles. We show that water and O-2 react on carbonaceous surfaces and give rise to gaseous OH radicals under irradiation. With ample delocalized pi electrons, carbonaceous surfaces enable the easy desorption of hydroxyl groups to produce gaseous OH radicals, evidenced by direct observation of the steady generation of OH radicals on a carbonaceous surface. Our results reveal a new chemical mechanism for the production of OH radicals.
WOS关键词HETEROGENEOUS CHEMISTRY ; OPTICAL-PROPERTIES ; ORGANIC-CARBON ; AEROSOLS ; FRESH
资助项目National Natural Science Foundation of China[22188102] ; National Natural Science Foundation of China[21777171] ; National Natural Science Foundation of China[52022104] ; Youth Innovation Promotion Association, CAS[2019045] ; Youth Innovation Promotion Association, CAS[Y2021020] ; Youth Innovation Promotion Association, CAS[2018060] ; Cultivating Project of Strategic Priority Research Program of Chinese Academy of Sciences[XDPB19] ; National Key Research and Development Program of China[2017YFC0209401] ; Natural Science Foundation of Anhui Province[2008085J20]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000772667900001
出版者WILEY-V C H VERLAG GMBH
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; Cultivating Project of Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; Natural Science Foundation of Anhui Province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/128187]  
专题中国科学院合肥物质科学研究院
通讯作者Zeng, Xiao Cheng; Francisco, Joseph S.; He, Hong
作者单位1.Univ Penn, Dept Chem, Philadelphia, PA 19104 USA
2.Univ Penn, Dept Earth & Environm Sci, Philadelphia, PA 19104 USA
3.Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA
4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, State Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
7.Chinese Acad Sci, State Key Joint Lab Environm Simulat & Pollut Con, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
推荐引用方式
GB/T 7714		 He, Guangzhi,Ma, Jinzhu,Chu, Biwu,et al. Generation and Release of OH Radicals from the Reaction of H2O with O-2 over Soot[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2022.
APA He, Guangzhi.,Ma, Jinzhu.,Chu, Biwu.,Hu, Renzhi.,Li, Hao.,...&He, Hong.(2022).Generation and Release of OH Radicals from the Reaction of H2O with O-2 over Soot.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION.
MLA He, Guangzhi,et al."Generation and Release of OH Radicals from the Reaction of H2O with O-2 over Soot".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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