Characteristics of Hydrogen Sensor Based on Monolayer of Pt Nanoparticles Decorated on Single-Layer Graphene
Characteristics of Hydrogen Sensor Based on Monolayer of Pt Nanoparticles Decorated on Single-Layer Graphene
复制标题
单层石墨烯修饰单层铂纳米粒子氢气传感器特性
DOI：
10.1007/s11664-016-5214-x
复制
发表时间：
2017
影响因子：
2.1
通讯作者：
Hoang Si Hong
中科院分区：
文献类型：
--
作者：
Nguyen Hai Ha;Cung Thanh Long;N. H. Nam;N. T. Hue;N. H. Phuong;Hoang Si Hong
我们报告的建设和测试的连续型H2传感器组成的单层的铂纳米粒子（Pt NPs）沉积使用浸渍法在单层石墨烯。结果发现，Pt NP单层显着降低了石墨烯基H2传感器的响应/恢复时间。该传感器的快速响应归因于单层Pt纳米颗粒和单层石墨烯之间的短扩散长度。该传感器在最佳工作温度150°C下的响应时间为6 s，恢复时间为69 s。此外，所制造的器件在10，000 ppm H2下表现出良好的重复性，10 ppm至10，000 ppm的检测范围，以及良好的热稳定性，满足安全应用对H2传感器的要求。
We report the construction and testing of a resistive-type H2sensor composed of a monolayer of platinum nanoparticles (Pt NPs) deposited using an immersion method on single-layer graphene. It was found that the Pt NP monolayer significantly reduced the response/recovery time of the graphene-based H2sensor. The very rapid response of the sensor is attributed to the short diffusion length between the monolayer Pt nanoparticles and single-layer graphene. The sensor showed response time of 6 s and recovery time of 69 s at the optimal working temperature of 150°C. In addition, the fabricated device exhibited good repeatability at 10,000 ppm H2, detection range of 10 ppm to 10,000 ppm, and good thermal stability, satisfying the requirements for H2sensors for safety applications.