Atomic layer deposition of Rh/ZnO nanostructures for anti-humidity detection of trimethylamine

Li, Zishuo; Lou, Chengming; Lei, Guanglu; Lu, Guocai; Pan, Hongyin; Liu, Xianghong; Zhang, Jun

doi:10.1016/j.snb.2021.131347

Cited by 50 publications

(23 citation statements)

References 41 publications

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“…Trimethylamine (TMA), as one of the poisonous volatile organic compounds (VOCs), is harmful to human health and air quality . In addition, the concentration of TMA exhaled by sea creatures and fish exceeding 10 ppm indicates the presence of spoilage, suggesting that TMA can be regarded as an effective indicator to evaluate the quality of seafood.…”

Section: Introductionmentioning

confidence: 99%

MoO₃ Nanorods Decorated by PbMoO₄ Nanoparticles for Enhanced Trimethylamine Sensing Performances at Low Working Temperature

Zhang

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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The gas sensing performance of metal oxides is limited by the lack of conductivity and sensing activity. Inducing the release of more electrons and activating more chemisorbed oxygen ions to participate in the gas sensing reaction can effectively overcome this limitation. The development of a PbMoO 4 /MoO 3 heterostructure prepared by the addition of Pb 2+ ions with MoO 3 nanorods is reported for highly sensitive and selective trimethylamine (TMA) detection. The response of the PbMoO 4 /MoO 3 sensor (33.2) to 10 ppm TMA is improved 3-fold compared to the MoO 3 sensor (10.7), and the working temperature is reduced from 170 to 133 °C. The enhanced gas sensing performance and mechanism of PbMoO 4 /MoO 3 were demonstrated using the energy band diagram and X-ray photoelectron spectroscopy (XPS) analysis. It is mainly attributed to the following promotion: (1) the induction of Pb 2+ ions increases the electron density around the Mo element, enabling the decorated MoO 3 to release electrons easily; (2) the formed PbMoO 4 /MoO 3 heterojunction endows a high degree of electron transfer at the interface; (3) the formation of the potential barrier causes the device resistance to decrease significantly upon TMA exposure. Finally, the practicability of the sensor was verified by detecting TMA released from Carassius auratus and shrimp to reflect their freshness.

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Section: Introductionmentioning

confidence: 99%

MoO₃ Nanorods Decorated by PbMoO₄ Nanoparticles for Enhanced Trimethylamine Sensing Performances at Low Working Temperature

Zhang

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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“…4(c), the O 1s spectrum of ZnO can be fitted into three peaks at 532.24 eV, 530.89 eV and 529.69 eV, which are attributed to hydroxyl oxygen, adsorbed oxygen and lattice oxygen. 32–34 The O 1s spectra of ZnO@ZIF-8 respectively at 534.06 eV, 531.51 eV and 529.96 eV are attributed to hydroxyl oxygen, adsorbed oxygen and lattice oxygen. 8,29 Among them, due to the introduction of ZIF-8 with high specific surface area, ZnO@ZIF-8 (55.56%) has a much higher ratio of adsorbed oxygen than ZnO (48.83%).…”

Section: Resultsmentioning

confidence: 99%

Rational design of ZnO@ZIF-8 nanoarrays for improved electrochemical detection of H₂O₂

Mei

Xie

et al. 2022

CrystEngComm

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“…More oxygen vacancies increase free electrons migrating between the 0.75 wt % Pt-In 2 O 3 nanotubes and acetone to improve the acetone response and response speed of the 0.75 wt % Pt-In 2 O 3 nanotubes sensor. And the catalytic effect of Pt accelerates the decomposition of water then the 0.75 wt % Pt-In 2 O 3 nanotubes sensor has good resistance to humidity . Pt can dissociate the adsorbed oxygen into O – at a low operating temperature, which decreases the optimal operating temperature .…”

Section: Resultsmentioning

confidence: 99%

“…And the catalytic effect of Pt accelerates the decomposition of water then the 0.75 wt % Pt-In 2 O 3 nanotubes sensor has good resistance to humidity. 41 Pt can dissociate the adsorbed oxygen into O − at a low operating temperature, which decreases the optimal operating temperature. 42 Another reason is, as shown in Figure S8, the larger BET surface area and total pore volume of the 0.75 wt % Pt-In 2 O 3 nanotubes make it have abundant reactive sites and diffusion channels for acetone sensing.…”

Section: Gas-sensing Mechanismmentioning

confidence: 99%

Pt-Sensitized In₂O₃ Nanotubes for Sensitive Acetone Monitoring

Song

Guan

Zeng

et al. 2022

ACS Appl. Nano Mater.

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Detecting 1 ppm acetone at high humidity is essential for a noninvasive diabetes diagnosis. Metal oxide gas sensors are a promising technology to achieve high sensitivity acetone monitoring. Here, we fabricated Pt-sensitized In 2 O 3 nanotubes, and the gas-sensing performance was tested against eight gases. The fiber structure contributes to the uniform dispersion of Pt onto the In 2 O 3 . Pt-sensitized In 2 O 3 nanotubes have lower optimal operating temperatures and higher sensitivity and selectivity than those of the In 2 O 3 nanotubes. The 0.75 wt % Pt-In 2 O 3 sensor has the maximum sensitivity (113) to 10 ppm acetone at 300 °C; the response and response time to 1 ppm acetone are 19.9 and 10 s, respectively. The response to 1 ppm acetone still has 9.83 at the relative humidity of 83%. It also has a low limit of detection (8.4 ppb) and good long-term stability (30 days). These results illustrate that Ptsensitized In 2 O 3 nanotubes have the potential for a noninvasive diabetes diagnosis.

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Atomic layer deposition of Rh/ZnO nanostructures for anti-humidity detection of trimethylamine

Cited by 50 publications

References 41 publications

MoO₃ Nanorods Decorated by PbMoO₄ Nanoparticles for Enhanced Trimethylamine Sensing Performances at Low Working Temperature

MoO₃ Nanorods Decorated by PbMoO₄ Nanoparticles for Enhanced Trimethylamine Sensing Performances at Low Working Temperature

Rational design of ZnO@ZIF-8 nanoarrays for improved electrochemical detection of H₂O₂

Pt-Sensitized In₂O₃ Nanotubes for Sensitive Acetone Monitoring

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Atomic layer deposition of Rh/ZnO nanostructures for anti-humidity detection of trimethylamine

Cited by 50 publications

References 41 publications

MoO3 Nanorods Decorated by PbMoO4 Nanoparticles for Enhanced Trimethylamine Sensing Performances at Low Working Temperature

MoO3 Nanorods Decorated by PbMoO4 Nanoparticles for Enhanced Trimethylamine Sensing Performances at Low Working Temperature

Rational design of ZnO@ZIF-8 nanoarrays for improved electrochemical detection of H2O2

Pt-Sensitized In2O3 Nanotubes for Sensitive Acetone Monitoring

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MoO₃ Nanorods Decorated by PbMoO₄ Nanoparticles for Enhanced Trimethylamine Sensing Performances at Low Working Temperature

MoO₃ Nanorods Decorated by PbMoO₄ Nanoparticles for Enhanced Trimethylamine Sensing Performances at Low Working Temperature

Rational design of ZnO@ZIF-8 nanoarrays for improved electrochemical detection of H₂O₂

Pt-Sensitized In₂O₃ Nanotubes for Sensitive Acetone Monitoring