Porous Au/α-Fe2O3 NRs are one-pot synthesized, and used as gas sensors for in situ VOCs detection. The sensor shows four times higher response to C6H6 than a pure α-Fe2O3 sensor and short response/recovery time (<30 s), which may be useful to establish an effective C6H6 real-time monitoring system in environmental protection and oil reservoirs' prediction.
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Wang et al. (2013) studied this question.
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