Diamondoid Nanostructures as sp<sup>3</sup>‐Carbon‐Based Gas Sensors

Moncea, Oana; Casanova-Cháfer, Juan; Poinsot, Didier; Ochmann, Lukas; Mboyi, Clève D.; Nasrallah, Houssein; Llobet, Eduard; Makni, Imen; El atrous, Molka; Brandès, Stéphane; Rousselin, Yoann; Domenichini, B.; Nuns, Nicolás; Fokin, Andrey A.; Schreiner, Peter R.; Hierso, Jean‐Cyrille

doi:10.1002/anie.201903089

Cited by 20 publications

(10 citation statements)

References 44 publications

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“…Both the XPS spectra of DND–WS 2 BH and DND–WS 2 AH are consistent with the Raman spectra and TEM. The diamond-based sp 3 carbon normally exhibited better gas-sensing performances by increasing the resistance of the sensor as reported elsewhere . Thus, the increased resistance also increases the sensor response of the DND–WS 2 AH sample when compared to that of the DND–WS 2 BH sample.…”

Section: Resultssupporting

confidence: 69%

“…The diamond-based sp 3 carbon normally exhibited better gas-sensing performances by increasing the resistance of the sensor as reported elsewhere. 33 Thus, the increased resistance also increases the sensor response of the DND−WS 2 AH sample when compared to that of the DND−WS 2 BH sample. Besides, Figure 10c displays the as-fabricated DND−WS 2 AH sample, of which the SEM image markedly shows the integration of DND and WS 2 .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Role of Nanodiamond Grains in the Exfoliation of WS₂ Nanosheets and Their Enhanced Hydrogen-Sensing Properties

Kathiravan

Huang

Saravanan

et al. 2021

ACS Appl. Mater. Interfaces

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Herein, for the first time, a combination of detonation nanodiamond (DND)–tungsten disulfide (WS2) was devised and studied for its selective H2-sensing properties at room temperature. DND–WS2 samples were prepared by a sonication-assisted (van der Waals interaction) liquid-phase exfoliation process in low-boiling solvents with DND as a surfactant. The samples were further hydrothermally treated in an autoclave under high pressure and temperature. The as-prepared samples were separated as two parts named DND–WS2 BH (before hydrothermal) and DND–WS2 AH (after hydrothermal). The exfoliated bilayer to few-layer DND-doped WS2 nanosheets were confirmed by ultraviolet–visible spectra, atomic force microscopy, and transmission electron microscopy studies. It was observed that the DND powder not only acted as a surfactant but also doped and expanded on WS2 nanosheets. The difference between samples BH and AH treatment was further investigated using Raman spectroscopy. The WS2 and DND–WS2 samples on SiO2/Si were fabricated using a sputtered Pd/Ag interdigitated electrode and utilized for H2 gas-sensing measurements. Surprisingly, the DND–WS2 exhibits an ultrahigh sensor response of 72.8% to H2 at 500 ppm when compared to only 9.9% for WS2 alone. Also, the DND–WS2 shows a fast response/recovery time, high selectivity, and stability toward H2 gas. It can be attributed to the correlation of the intergrain phase of DND nanoparticles and WS2 nanosheets, which contributes to the easy transportation of charge carriers when exposed to the air and H2 gas atmosphere. Moreover, it is believed that DND-induced WS2 exfoliation might inspire future synthesis of transition metal dichalcogenides induced by DND in green solvents.

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Section: Resultssupporting

confidence: 69%

Section: ■ Results and Discussionmentioning

confidence: 99%

Role of Nanodiamond Grains in the Exfoliation of WS₂ Nanosheets and Their Enhanced Hydrogen-Sensing Properties

Kathiravan

Huang

Saravanan

et al. 2021

ACS Appl. Mater. Interfaces

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“…, rigid sp 3 -hybridized diamondoids) as ligands to build, via a straightforward and upscalable method, Ru NP networks presenting a uniform particle size and interparticle distance, as well as a well-defined chemical environment. Commercially available adamantane and diamantane have mechanically rigid and thermodynamically extremely stable structures, , which are easily amenable to synthetic modifications, − and have been used with success to assemble various innovative functional materials. − Thus, we employed adamantane, bis-adamantane, and diamantane as platforms for synthesizing dicarboxylic and diamine ligands, which are used for the first time to produce a set of Ru NP networks with well-defined characteristics (NP size, interparticle distance, electronic environment) of interest for catalysis. These materials were investigated for the selective hydrogenation of phenylacetylene into styrene.…”

Section: Introductionmentioning

confidence: 99%

3D Ruthenium Nanoparticle Covalent Assemblies from Polymantane Ligands for Confined Catalysis

et al. 2020

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The synthesis of metal nanoparticle (NP) assemblies stabilized by functional molecules is an important research topic in nanoscience, and the ability to control interparticle distances and positions in NP assemblies is one of the major challenges in designing and understanding functional nanostructures. Here, two series of functionalized adamantanes, bisadamantanes and diamantanes bearing carboxylic acid or amine functional groups have been used as building blocks to produce, via a straightforward method, networks of ruthenium NP. Both the nature of the ligand and the Ru/ligand ratio affect the interparticle distance in the assemblies. The use of 1,3-adamantanedicarboxylic acid allows the synthesis of 3D networks of 1.7-1.9 nm Ru NP presenting interparticle distance of 2.5-2.7 nm. The surface interaction between Ru NP and the ligands were investigated spectroscopically using a 13 C labeled ligand, as well as theoretically with Density Functional Theory (DFT) calculations. We found that Ru species formed during the NP assembly are able to partially decarbonylate carboxylic acid ligands at room temperature. Decarbonylation of a carboxylic acid at room temperature in the presence of dihydrogen usually occurs on catalysts at much higher temperature and pressure. This result reveals a very high reactivity of ruthenium species formed during network assembling. The Ru NP networks were found active catalysts for the selective hydrogenation of phenyl acetylene, reaching good selectivity towards styrene. Overall, we demonstrated that catalyst activity, selectivity, and NP network stability are significantly affected by Ru NP interparticle distance, and electronic ligand effects. As such, these materials constitute a unique set that should allow a better understanding of the complex surface chemistry in carbonsupported metal catalysts.

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“…This carbon‐based gas sensor measured NO 2 and NH 3 at the same time and it had high‐speed response and recyclability. [ 105 ]…”

Section: Application Of Flexible Sensors Based On Hybrid Materialsmentioning

confidence: 99%

Flexible Sensors Based on Organic–Inorganic Hybrid Materials

Ren

Yang

et al. 2021

Adv Materials Technologies

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Flexible electronic devices are widely used in daily life. Among them, flexible sensors are widely studied by their potential for extensive applications. Materials are one of the essential foundations for making electronic devices. Due to the excellent unique properties of organic and inorganic hybrid materials, they are widely used in the manufacture of flexible sensors. Flexible sensor technology is developed by combining organic and inorganic materials and these hybrid materials can ensure the high frequency and high‐speed conductive property of a device while making the device flexible. In this review, the main three elements of sensors are mentioned and the materials selections in different elements are reviewed. After investigating the materials’ performance requirements of sensors, the performance of hybrid materials in sensors is comprehensively summarized according to the type of the sensor. Finally, some challenges and future directions of development are summarized and presented for flexible sensors based on such promising materials.

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Diamondoid Nanostructures as sp³‐Carbon‐Based Gas Sensors

Cited by 20 publications

References 44 publications

Role of Nanodiamond Grains in the Exfoliation of WS₂ Nanosheets and Their Enhanced Hydrogen-Sensing Properties

Role of Nanodiamond Grains in the Exfoliation of WS₂ Nanosheets and Their Enhanced Hydrogen-Sensing Properties

3D Ruthenium Nanoparticle Covalent Assemblies from Polymantane Ligands for Confined Catalysis

Flexible Sensors Based on Organic–Inorganic Hybrid Materials

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Diamondoid Nanostructures as sp3‐Carbon‐Based Gas Sensors

Cited by 20 publications

References 44 publications

Role of Nanodiamond Grains in the Exfoliation of WS2 Nanosheets and Their Enhanced Hydrogen-Sensing Properties

Role of Nanodiamond Grains in the Exfoliation of WS2 Nanosheets and Their Enhanced Hydrogen-Sensing Properties

3D Ruthenium Nanoparticle Covalent Assemblies from Polymantane Ligands for Confined Catalysis

Flexible Sensors Based on Organic–Inorganic Hybrid Materials

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Diamondoid Nanostructures as sp³‐Carbon‐Based Gas Sensors

Role of Nanodiamond Grains in the Exfoliation of WS₂ Nanosheets and Their Enhanced Hydrogen-Sensing Properties

Role of Nanodiamond Grains in the Exfoliation of WS₂ Nanosheets and Their Enhanced Hydrogen-Sensing Properties