Molecular Evolution of Nitrogen Dioxide on a Nanostructured Gold Surface in the Atmosphere by In Situ Surface-Enhanced Raman Spectroscopy

doi:10.1021/acs.jpcc.2c04775

	Molecular Evolution of Nitrogen Dioxide on a Nanostructured Gold Surface in the Atmosphere by In Situ Surface-Enhanced Raman Spectroscopy
	Fu, Hao 1,2; Bao, Haoming 2; Zhang, Hongwen 2; Zhao, Qian 2; Zhou, Le 2; Zhu, Shuyi 1,2; Guo, Yujing 1,2; Li, Yue 2; Cai, Weiping 1,2
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2022-10-14
ISSN号	1932-7447
DOI	10.1021/acs.jpcc.2c04775
通讯作者	Zhang, Hongwen(hwzhang@issp.ac.cn) ; Cai, Weiping(wpcai@issp.ac.cn)
英文摘要	It has generally been believed that the interaction between nitrogen dioxide (NO2) and Au can occur only under ultralow temperature (<200 K) and vacuum conditions. The evolution process of NO2 on the Au surface and its products are still seriously controversial. Here, the molecular evolution of NO2 on a nanostructured Au surface in the atmosphere is studied by time-dependent in situ surface-enhanced Raman spectroscopy. According to the spectral measurements and density functional theory-based simulations, it has been found that when NO2 contacts the Au surface in the air with enough relative humidity (greater than or similar to 20%), chemisorbed NO2 species would be produced quickly, and after a short induction period (about 1 min), would evolve into NO[Au(NO3)(4)], which subsequently decomposes into O-2 and NO, and/or deliquesce into the adsorbed NO2 and -OH as well as HNO3, depending on the temperature and the relative humidity. Further experiments show that the presence of O-2 and H2O molecules is crucial to such molecular evolution of NO2 on the Au surface in the atmosphere. Finally, a H2O and O-2 -assisted reaction mechanism is proposed and nicely describes the molecular evolution of NO2 on the Au surface. This work provides sufficient spectral evidences for the molecular evolution of NO2 on the Au surface in the atmosphere, and offers a new insight into the interaction between NO2 and the Au surface.
资助项目	Natural Science Foundation of China ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; [11974352] ; [52001305] ; [52271242] ; [E14BBGU52G1]
WOS关键词	SELECTIVE CATALYTIC-REDUCTION ; STEPPED AU(997) SURFACE ; NITRITE REDUCTION ; NO2 ; ADSORPTION ; OXYGEN ; PD ; ACID ; N2O ; CO
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000873956900001
资助机构	Natural Science Foundation of China ; Scientific Instrument Developing Project of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129895]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Hongwen; Cai, Weiping
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol,HFIPS, R China, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Fu, Hao,Bao, Haoming,Zhang, Hongwen,et al. Molecular Evolution of Nitrogen Dioxide on a Nanostructured Gold Surface in the Atmosphere by In Situ Surface-Enhanced Raman Spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2022.
APA	Fu, Hao.,Bao, Haoming.,Zhang, Hongwen.,Zhao, Qian.,Zhou, Le.,...&Cai, Weiping.(2022).Molecular Evolution of Nitrogen Dioxide on a Nanostructured Gold Surface in the Atmosphere by In Situ Surface-Enhanced Raman Spectroscopy.JOURNAL OF PHYSICAL CHEMISTRY C.
MLA	Fu, Hao,et al."Molecular Evolution of Nitrogen Dioxide on a Nanostructured Gold Surface in the Atmosphere by In Situ Surface-Enhanced Raman Spectroscopy".JOURNAL OF PHYSICAL CHEMISTRY C (2022).