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. 2019 Oct 16;19(20):4478. doi: 10.3390/s19204478

Figure 9.

Figure 9

H2 sensing systems with the configuration of Pd NPs on carbon material. (a) Schematic diagrams of Pd NPs/graphene-based sensors. Reprinted with permission from [39]. Copyright 2015 Sensors and Actuators B: Chemical. (b) As-fabricated H2 sensors: Pd NPs/GO thin films on a glass substrate between two Cu contacts. Reprinted with permission from [70]. Copyright 2015 New J Chem. (c) Schematic of single suspended PdNPs/carbon nanowires integrated onto a H2 detection chip. Reprinted with permission from [69]. Copyright 2017 Sensors and Actuators B: Chemical.