Single-walled carbon nanotubes based hydrogen sulfide gas sensor functionalized with TEMPO

被引：1

作者：

Kim, Ryangha ^{[1
]}

Kim, Kyung-eun ^{[1
]}

Kim, Younglae ^{[1
]}

机构：

[1] Gangneung Wonju Natl Univ, Dept Elect Engn, Kangnung 25457, South Korea

来源：

MATERIALS LETTERS | 2025年 / 386卷

关键词：

hydrogen sulfide; gas sensor; carbon nanotubes; functionalized; enhanced sensitivity;

D O I：

10.1016/j.matlet.2025.138193

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydrogen sulfide (H2S), a toxic and corrosive gas, poses significant risks in various industries and environments. This paper presents an electrochemical sensor designed for the detection of H2S within a concentration range of 0.01 ppm to 100 ppm. The sensor utilizes Single-Walled Carbon Nanotubes (SWCNTs) functionalized with 2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPO) to enhance sensitivity. The fabrication process involves a straightforward method for forming the sensor surface, demonstrating the deposition of SWCNTs using a dropcoating technique. The TEMPO-functionalized sensor exhibits improved sensitivity, achieving a 120 % enhancement at 0.01 ppm compared to the non-functionalized sensor. The results indicate that the developed sensor shows promise for real-time detection of H2S at low concentrations and at room temperature.

引用

页数：4

共 50 条

[21] Quantum dynamics of hydrogen interacting with single-walled carbon nanotubes [J].

McAfee, Jason L. ;

Poirier, Bill .

JOURNAL OF CHEMICAL PHYSICS, 2009, 130 (06)

[22] Electrochemical investigation of single-walled carbon nanotubes for hydrogen storage [J].

Rajalakshmi, N ;

Dhathathreyan, KS ;

Govindaraj, A ;

Satishkumar, BC .

ELECTROCHIMICA ACTA, 2000, 45 (27) :4511-4515

[23] Vibrational and photoluminescence properties of the polystyrene functionalized single-walled carbon nanotubes [J].

Baibarac, M. ;

Baltog, I. ;

Lefrant, S. ;

Mevellec, J. Y. ;

Bucur, C. .

[24] Spectroscopic studies on electrochemically doped and functionalized single-walled carbon nanotubes [J].

Rafailov, P. M. ;

Milenov, T. I. ;

Monev, M. ;

Avdeev, G. V. ;

Thomsen, C. ;

Dettlaff-Weglikowska, U. ;

Roth, S. .

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2009, 11 (09) :1339-1342

[25] Actuator-Driven, Purge-Free Formaldehyde Gas Sensor Based on Single-Walled Carbon Nanotubes [J].

Ishihara, Shinsuke ;

Chahal, Mandeep K. ;

Labuta, Jan ;

Tanaka, Takeshi ;

Kataura, Hiromichi ;

Hill, Jonathan P. ;

Nakanishi, Takashi .

NANOMATERIALS, 2025, 15 (13)

[26] Development toxicity of functionalized single-walled carbon nanotubes on rare minnow embryos and larvae [J].

Zhu, Bin ;

Liu, Guang-Lu ;

Ling, Fei ;

Song, Lin-Sheng ;

Wang, Gao-Xue .

NANOTOXICOLOGY, 2015, 9 (05) :579-590

[27] Asymptomatic Diagnosis of Huanglongbing Disease Using Metalloporphyrin Functionalized Single-Walled Carbon Nanotubes Sensor Arrays [J].

Wang, Hui ;

Ramnani, Pankaj ;

Tung Pham ;

Villarreal, Claudia Chaves ;

Yu, Xuejun ;

Liu, Gang ;

Mulchandani, Ashok .

FRONTIERS IN CHEMISTRY, 2020, 8

[28] Electromechanical Transducers based on Single-Walled Carbon Nanotubes [J].

Stampfer, C. ;

Jungen, A. ;

Helbling, T. ;

Durrer, L. ;

Hierold, C. .

CARBON NANOTUBES AND ASSOCIATED DEVICES, 2008, 7037

[29] Formylation of Single-Walled Carbon Nanotubes [J].

Suri, Anil ;

Coleman, Karl S. .

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2012, 12 (03) :2929-2933

[30] Piezoresistance of single-walled carbon nanotubes [J].

Stampfer, C. ;

Helbling, T. ;

Jungen, A. ;

Hierold, C. .

TRANSDUCERS '07 & EUROSENSORS XXI, DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2, 2007,

← 1 2 3 4 5 →