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- W2907389327 abstract "Novel hierarchical [email protected]3 nanocomposites with various CuO contents (0–10 wt%) were synthesized by anchoring discrete CuO nanoparticles (CuO NPs) on WO3 nanoplates under a hydrothermal condition for low-temperature detection of H2S gas. In the [email protected]3 nanocomposite, CuO NPs are uniformly distributed on WO3 nanoplates, forming a p-n CuO/WO3 heterojunction. The [email protected]3 nanocomposites show highly sensitive to H2S gas at a low operating-temperature range (25–100 °C). The 5 wt%[email protected]3 sensor shows a high response of 830 when exposed to a 10 ppm H2S gas at 100 °C. At even lower temperatures (e.g., 50 °C and 25 °C), the 5 wt%[email protected]3 sensor shows an obvious response to 1 ppm H2S, and their response time is less than 3 min. In addition, the [email protected]3 sensor exhibits a highly selective response to H2S, compared with SO2, CO, CH4, H2, and organic vapors, operating at 25–100 °C. The improvement of the [email protected]3 sensor in H2S detection at a low operating temperature is ascribed to the unique hierarchical p-n heterojunctions formed between the CuO NPs and WO3 nanoplates." @default.
- W2907389327 created "2019-01-11" @default.
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- W2907389327 date "2019-05-01" @default.
- W2907389327 modified "2023-10-16" @default.
- W2907389327 title "Construction and enhanced low-temperature H2S-sensing performance of novel hierarchical CuO@WO3 nanocomposites" @default.
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- W2907389327 doi "https://doi.org/10.1016/j.jallcom.2019.01.037" @default.
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