Fabrication of Pt cluster-loaded In<sub>2</sub>O<sub>3</sub> inverse opal photonic crystals for fast and highly sensitive ethanol sensing

Li, Feihu; Jing, Junjie; Li, Jinkun; Li, Shu-Ni; Cheng, Dongliang; Zhang, Yeguang; Zhan, Zili; Tang, Bingtao

doi:10.1039/d2tc04341f

Cited by 8 publications

(4 citation statements)

References 54 publications

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“…Although the gas-sensing performances of Ag-Co 3 O 4 sensors had not reached the highest level, the Ag-Co 3 O 4 sensing material still exhibited significant advantages in the response value and working temperature compared with pure Co 3 O 4 material and some noble metal-loaded oxides (Figure c and Table S4). − …”

Section: Results and Discussionmentioning

confidence: 99%

Mechanism of Interfacial Molecular Interactions Reveals the Intrinsic Factors for the Highly Enhanced Sensing Performance of Ag-Loaded Co₃O₄

Cao,

Sun,

Dong

2024

ACS Sens.

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The noble metal-loaded strategy can effectively improve the gas-sensing performances of metal oxide sensors. However, the gas−solid interfacial interactions between noble metal-loaded sensing materials and gaseous species remain unclear, posing a significant challenge in correlating the physical and chemical processes during gas sensing. In this study, in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and in situ Raman spectroscopy were conducted to collaboratively investigate the interfacial interactions involved in the ethanol gas-sensing processes over Co 3 O 4 and Ag-loaded Co 3 O 4 sensors. In situ DRIFTS revealed differences in the compositions and quantities of sensing reaction products, as well as in the adsorption−desorption interactions of surface species, among Co 3 O 4 and Ag-loaded Co 3 O 4 materials. In parallel, in situ Raman spectroscopy demonstrated that the ethanol atmosphere can modulate the electron scattering of Ag-loaded Co 3 O 4 materials but not of raw Co 3 O 4 . In situ experimental results revealed the intrinsic reason for the highly enhanced sensing performances of the Ag-loaded Co 3 O 4 sensors toward ethanol gas, including a decreased optimal working temperature (from 250 to 150 °C), an improved gas response level (from 24 to 257), and accelerated gas recovery dynamics. This work provides an effective platform to investigate the interfacial interactions of sensing processes at the molecular level and further advances the development of high-performance gas sensors.

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Section: Results and Discussionmentioning

confidence: 99%

Mechanism of Interfacial Molecular Interactions Reveals the Intrinsic Factors for the Highly Enhanced Sensing Performance of Ag-Loaded Co₃O₄

Cao,

Sun,

Dong

2024

ACS Sens.

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“…The peaks at 74.16 and 71.01 eV can be attributed to Pt 4f 5/2 and Pt 4f 7/2 of Pt 0 from metallic Pt. 49,50 In addition, the peak located at 78.77 eV may be associated with W 5s. 51…”

Section: Paper Dalton Transactionsmentioning

confidence: 99%

Preparation of Pt/WO₃@ZnO hollow spheres for low-temperature and high-efficiency detection of triethylamine

Dong,

Shao,

Sun

et al. 2024

Dalton Trans.

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“…[16] PCs, as smart materials with built-in structural color sensing, have been attracting much attention. [17][18][19][20][21] Most current stimulus-responsive PCs are structured polymers fabricated by template replication or negative replication, especially Low-swelling polymers (LSPs). [22,23] Based on the limited visible range, usually a small degree of swelling can cause the diffraction displacement of PC to cover the entire visible region.…”

Section: Introductionmentioning

confidence: 99%

“…Such materials can generally be divided into one‐dimensional (1D, layered stack nanostructures in one direction), [14] two‐dimensional (2D, possessing periodic structure array in two directions), [15] and three‐dimensional (3D, nanostructures ordered periodically in three spatial directions) PCs [16] . PCs, as smart materials with built‐in structural color sensing, have been attracting much attention [17–21] …”

Section: Introductionmentioning

confidence: 99%

Recent progress in low‐swellable polymer‐based smart photonic crystal sensors

Qi,

Zhang

2023

Smart Molecules

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Low‐swelling polymers (LSPs) generally refer to materials with a low solvent absorption ratio or volume expansion rate at swelling equilibrium. LSPs with exceptional responsiveness could be upgraded to smart sensors with structural color self‐reporting by bridging photonic crystals (PCs). Based on the regulation of swelling to effective refractive index, lattice spacing, the order‐disorder arrangement of nanostructures, and incident/detection angle, the structural color feedback of smart photonic crystal sensors (SPCSs) can quantitatively and visually reveal the stimulus, which greatly promotes the interdisciplinary development of nanophotonic technology in the fields of chemical engineering, materials science, engineering mechanics, biomedicine, environmental engineering, etc. Herein, to clarify the role of the photonic structures and polymer molecules in high‐performance SPCSs, LSP‐based SPCSs are summarized and discussed, including general swelling mechanisms, color change strategies, structural design, and typical functional applications. It aims to figure out the combination rule between PC structures and LSPs, optimize the design of PC structures, and expound the corresponding structural color sensing mechanisms, inspiring the fabrication of next‐generation SPCSs. Finally, perspectives on future structural design and sensing applications are also presented. It is believed that SPCSs are multifunctional nanophotonic tools for the interdisciplinary development of numerous engineering fields in the future.

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Fabrication of Pt cluster-loaded In₂O₃ inverse opal photonic crystals for fast and highly sensitive ethanol sensing

Abstract: The high porosity of the three-dimensionally ordered macroporous structure of inverse opal photonic crystals (IOPCs) provide an ideal platform for gas sensing based on metal oxide semiconductors. Herein, Pt clusters-loaded...

Cited by 8 publications

References 54 publications

Mechanism of Interfacial Molecular Interactions Reveals the Intrinsic Factors for the Highly Enhanced Sensing Performance of Ag-Loaded Co₃O₄

Mechanism of Interfacial Molecular Interactions Reveals the Intrinsic Factors for the Highly Enhanced Sensing Performance of Ag-Loaded Co₃O₄

Preparation of Pt/WO₃@ZnO hollow spheres for low-temperature and high-efficiency detection of triethylamine

Recent progress in low‐swellable polymer‐based smart photonic crystal sensors

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Fabrication of Pt cluster-loaded In2O3 inverse opal photonic crystals for fast and highly sensitive ethanol sensing

Abstract: The high porosity of the three-dimensionally ordered macroporous structure of inverse opal photonic crystals (IOPCs) provide an ideal platform for gas sensing based on metal oxide semiconductors. Herein, Pt clusters-loaded...

Cited by 8 publications

References 54 publications

Mechanism of Interfacial Molecular Interactions Reveals the Intrinsic Factors for the Highly Enhanced Sensing Performance of Ag-Loaded Co3O4

Mechanism of Interfacial Molecular Interactions Reveals the Intrinsic Factors for the Highly Enhanced Sensing Performance of Ag-Loaded Co3O4

Preparation of Pt/WO3@ZnO hollow spheres for low-temperature and high-efficiency detection of triethylamine

Recent progress in low‐swellable polymer‐based smart photonic crystal sensors

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Product

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Fabrication of Pt cluster-loaded In₂O₃ inverse opal photonic crystals for fast and highly sensitive ethanol sensing

Mechanism of Interfacial Molecular Interactions Reveals the Intrinsic Factors for the Highly Enhanced Sensing Performance of Ag-Loaded Co₃O₄

Mechanism of Interfacial Molecular Interactions Reveals the Intrinsic Factors for the Highly Enhanced Sensing Performance of Ag-Loaded Co₃O₄

Preparation of Pt/WO₃@ZnO hollow spheres for low-temperature and high-efficiency detection of triethylamine