Conductometric Response-Triggered Surface-Enhanced Raman Spectroscopy for Accurate Gas Recognition and Monitoring Based on Oxide-wrapped Metal Nanoparticles

doi:10.1021/acssensors.0c00188

HFCAS OpenIR

	Conductometric Response-Triggered Surface-Enhanced Raman Spectroscopy for Accurate Gas Recognition and Monitoring Based on Oxide-wrapped Metal Nanoparticles
	Bao, Haoming 1; Zhang, Hongwen1 ; Zhang, Peng 1,2; Fu, Hao 1,2; Zhou, Le 1,2; Li, Yue1,2 ; Cai, Weiping1,2
	2020-06-26
发表期刊	ACS SENSORS
ISSN	2379-3694
通讯作者	Zhang, Hongwen(hwzhang@issp.ac.cn) ; Cai, Weiping(wpcai@issp.ac.cn)
摘要	Accurate and efficient gas monitoring is still a challenge because the existing sensing techniques mostly lack specific identification of gases or hardly meet the requirement of real-time readout. Herein, we present a strategy of conductometric response-triggered surface-enhanced Raman spectroscopy (SERS) for such gas monitoring, via designing and using ultrathin oxide-wrapped plasmonic metal nanoparticles (NPs). The oxide wrapping layer can interact with and capture target gaseous molecules and produce the conductometric response, while the plasmonic metal NPs possess strong SERS activity. In this strategy, the conductometric gas sensing is performed throughout the whole monitoring process, and once a conductometric response is generated, it will trigger SERS measurements, which can accurately recognize molecules and hence realize gas monitoring. The feasibility of this strategy has been demonstrated via using ultrathin SnO2 layer-wrapped Au NP films to monitor gaseous 2-phenylethanethiol molecules. It has been shown that the monitoring is rapid, accurate, and quantifiable. There exist optimal values of working temperature and SnO2 layer thickness, which are about 100 degrees C and 2.5 nm, respectively, for monitoring gaseous 2-phenylethanethiol. The monitoring signal intensity has a linear relation with the gas concentration in the range from 1 to 100 ppm on a logarithmic scale. Furthermore, the monitoring limits are at the ppm level for some typical gases, such as 2-phenylethanethiol, cyclohexanethiol, 1-dodecanethiol, and toluene. This study establishes the conductometric response-triggered SERS, which enables accurate gas recognition and real-time monitoring.
关键词	conductometric response-triggered SERS accurate gas recognition real-time gas monitoring ultrathin oxide-wrapped metal nanoparticles Au@SnO2 nanoparticles
DOI	10.1021/acssensors.0c00188
关键词[WOS]	SENSING PROPERTIES ; GOLD NANOPARTICLES ; PLASMON RESONANCE ; SCATTERING ; SILVER ; AU ; NANOSTRUCTURES ; MONOLAYERS ; MOLECULES ; DESIGN
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFA0207101] ; National Natural Science Foundation of China[51531006] ; National Natural Science Foundation of China[11974352] ; National Natural Science Foundation of China[51771182] ; Chinese Postdoctoral Science Foundation[2019M662211]
项目资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Chinese Postdoctoral Science Foundation
WOS研究方向	Chemistry ; Science & Technology - Other Topics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Analytical ; Nanoscience & Nanotechnology
WOS记录号	WOS:000545694100018
出版者	AMER CHEMICAL SOC
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/71253
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.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Bao, Haoming,Zhang, Hongwen,Zhang, Peng,et al. Conductometric Response-Triggered Surface-Enhanced Raman Spectroscopy for Accurate Gas Recognition and Monitoring Based on Oxide-wrapped Metal Nanoparticles[J]. ACS SENSORS,2020,5.
APA	Bao, Haoming.,Zhang, Hongwen.,Zhang, Peng.,Fu, Hao.,Zhou, Le.,...&Cai, Weiping.(2020).Conductometric Response-Triggered Surface-Enhanced Raman Spectroscopy for Accurate Gas Recognition and Monitoring Based on Oxide-wrapped Metal Nanoparticles.ACS SENSORS,5.
MLA	Bao, Haoming,et al."Conductometric Response-Triggered Surface-Enhanced Raman Spectroscopy for Accurate Gas Recognition and Monitoring Based on Oxide-wrapped Metal Nanoparticles".ACS SENSORS 5(2020).