Flexible hydrogen sensors using graphene with palladium nanoparticle decoration

被引：248

作者：

Chung, Min Gyun ^{[1
]}

Kim, Dai-Hong ^{[2
]}

Seo, Dong Kyun ^{[1
]}

Kim, Taewoo ^{[1
]}

Im, Hyeong Uk ^{[1
]}

Lee, Hyun Myoung ^{[3
]}

Yoo, Ji-Beom ^{[3
]}

Hong, Seong-Hyeon ^{[2
]}

Kang, Tae June ^{[1
]}

Kim, Yong Hyup ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Mech & Aerosp Engn, Seoul 151744, South Korea

[2] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151744, South Korea

[3] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 440746, South Korea

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2012年 / 169卷

基金：

新加坡国家研究基金会;

关键词：

Graphene; Palladium nanoparticle; Hydrogen; Gas sensor; WALLED CARBON NANOTUBES; HIGH-PERFORMANCE; THIN-FILMS; TEMPERATURE; FABRICATION;

D O I：

10.1016/j.snb.2012.05.031

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Flexible hydrogen gas (H-2) sensors are fabricated using a single layer graphene decorated with palladium (Pd) nanoparticles. Thermally evaporated Pd is generally deposited on a graphene in the form of nanoparticles when the deposition thickness is very small. The graphene sensor with Pd thickness of 3 nm exhibits a gas response of similar to 33% when exposed to 1000 ppm H-2 and iris able to detect as low as 20 ppm H-2 at room temperature (22 degrees C). The sensor is so flexible that any significant degradation is not observed when it is bent to a curved geometry with a bending radius of 3 mm. The flexible hydrogen sensors are applicable to a broad range of systems with demanding mechanical flexibility, durability and high gas response. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：387 / 392

页数：6

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