In:
New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 47, No. 22 ( 2023), p. 10727-10734
Abstract:
The development of a selective and fast response gas sensor for dioctyl phthalate (DOP) has been attracting considerable attention for the early warning of electrical fires. In this study, photodeposition was applied to fabricate highly dispersed Pd/SnO 2 with abundant defects. The obtained 5%Pd/SnO 2 has more Sn 2+ species and oxygen vacancies than SnO 2 , which may be due to the reduction of photogenerated electrons. 5%Pd/SnO 2 exhibited the best comprehensive performance in response value and response and recovery time for DOP sensing among different Pd loadings. The response to 5 ppm of DOP is 3.58 at 240 °C, which is much higher than 1.03 for SnO 2 , due to the abundant oxygen vacancies and Sn 2+ defects of the material. Besides, the material exhibited good selectivity, stability, and a linear response to different concentrations of DOP. The 5%Pd/SnO 2 sensor also responded much faster than conventional smoke detectors for the overheated PVC cable.
Type of Medium:
Online Resource
ISSN:
1144-0546
,
1369-9261
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
1472933-7
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