Synthesis and the improved sensing properties of hierarchical SnO2 hollow nanosheets with mesoporous and multilayered interiors

Zeng, Yi; Wang, Yanzhe; Qiao, Liang; Bing, Yifei; Zou, Bo; Zheng, Weitao

doi:10.1016/j.snb.2015.08.068

Cited by 50 publications

(12 citation statements)

References 34 publications

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Section: Assembled Thin 2d Materialsmentioning

confidence: 99%

“…Thin 2D nanosheets facilitate the formation of architectural building blocks to be assembled into a variety of nanostructures (see Figure 13) which endows hollow-structured materials with tunable properties [72]. Huang and coworkers prepared hierarchical nanorods assembled by interlaced ultrathin nanosheets (with a thickness of around 3 nm), that possessed a large specific surface area and a novel open-style pore structure, which endowed it with large amount of gas adsorption and rapid gas diffusion [73,74].…”

Section: Assembled Thin 2d Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Thin 2D: The New Dimensionality in Gas Sensing

Neri

2017

Chemosensors

112

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Abstract:Since the first report of graphene, thin two-dimensional (2D) nanomaterials with atomic or molecular thicknesses have attracted great research interest for gas sensing applications. This was due to the distinctive physical, chemical, and electronic properties related to their ultrathin thickness, which positively affect the gas sensing performances. This feature article discusses the latest developments in this field, focusing on the properties, preparation, and sensing applications of thin 2D inorganic nanomaterials such as single-or few-layer layered double hydroxides/transition metal oxides/transition metal dichalcogenides. Recent studies have shown that thin 2D inorganic nanomaterials could provide monitoring of harmful/toxic gases with high sensitivity and a low concentration detection limit by means of conductometric sensors operating at relatively low working temperatures. Promisingly, by using these thin 2D inorganic nanomaterials, it may open a simple way of improving the sensing capabilities of conductometric gas sensors.

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Section: Assembled Thin 2d Materialsmentioning

confidence: 99%

Section: Assembled Thin 2d Materialsmentioning

confidence: 99%

Thin 2D: The New Dimensionality in Gas Sensing

Neri

2017

Chemosensors

112

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“…In the initial stage, the urea in aqueous solution began to hydrolyze and release ammonia, OH − anions as well as CO 2 3− anions according to Eqs. (1)-(3).…”

Section: Figure 8 (A) Low and (B) High Magnification Fesem Images Ofmentioning

confidence: 99%

“…Over the past decades, research efforts in nanoscience and nanotechnology has grown extensively globally due to the fabrication techniques of nanosheets that have attracted a great deal of research activities because of their unique physicochemical properties [1]. These properties have enabled scientists to be able to design and precise control over specialized morphologies of nanomaterials [2]. Consequently, the use of nanomaterials, the tremendous potential of "nano" approaches to revolutionize the ways in which matter is synthesized, fabricated and processed is already apparent.…”

Section: Introductionmentioning

confidence: 99%

Mini Review: Recent Green Advances on the Preparation of V₂O₅, ZnO, and NiO Nanosheets

Likius¹,

Rahman²,

Shilongo³

et al. 2020

Advances in Condensed-Matter and Materials Physics - Rudimentary Research to Topical Technology

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The past decade has seen a surge in the development of research on nanomaterial in the area of mixed metal oxides to fabricate ultrathin films, also known as nanosheets. In this review, different fabrication techniques of metal oxide nanosheets, such as vanadium, nickel, and zinc oxide, are presented. The chapter has also highlighted different ways of how to create smaller, affordable, lighter, and faster devices using vanadium, nickel, and zinc oxides. A detailed description of the synthesis and characterization using scanning electron microscope (SEM) and transmission electron microscope (TEM) for various shapes of nanomaterials is discussed in detail including factors that influence the orientation of nanosheets.

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“…The shape and geometry of hollow nanostructures determine their chemical and physical properties, and thus their performance in applications. Depending on the degree of spatial freedom of voids, hollow nanostructures are classified into zero‐dimensional (0D) nanoshells with voids confined along all three dimensions, one‐dimensional (1D) nanotubes with voids confined along only two dimensions, and two‐dimensional (2D) sheet‐like nanoboxes with voids mainly confined along only one dimension . More complicated hollow structures can be formed from the interconnection of the simple nanostructures to provide new properties and functionalities.…”

Section: Introductionmentioning

confidence: 99%

In Situ Techniques for Probing Kinetics and Mechanism of Hollowing Nanostructures through Direct Chemical Transformations

Sun

2018

Small Methods

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Chemical transformation of nanostructures into hollow ones becomes important in the synthesis of materials with unique properties for applications ranging from sensing to energy storage, to high‐performance catalysis. The nanoscale Kirkendall effect and galvanic replacement represent two typical mechanisms responsible for hollowing nanostructures. These two mechanisms occur either independently or simultaneously to form hollow nanostructures with appropriate geometries and desirable properties. Precisely distinguishing the hollowing mechanism and kinetics involved in a chemical transformation relies on in situ characterization methods including in situ electron microscopy, in situ optical spectroscopy, and a suite of in situ synchrotron X‐ray techniques (e.g., imaging, scattering, and X‐ray absorption fine structure spectroscopy). Here, the two typical hollowing mechanisms and the in situ characterization extensively explored in recent years are summarized, providing a timely overview of the promise of in situ methods in studying nanoparticle evolution under real reaction conditions.

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Synthesis and the improved sensing properties of hierarchical SnO2 hollow nanosheets with mesoporous and multilayered interiors

Cited by 50 publications

References 34 publications

Thin 2D: The New Dimensionality in Gas Sensing

Thin 2D: The New Dimensionality in Gas Sensing

Mini Review: Recent Green Advances on the Preparation of V₂O₅, ZnO, and NiO Nanosheets

In Situ Techniques for Probing Kinetics and Mechanism of Hollowing Nanostructures through Direct Chemical Transformations

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Synthesis and the improved sensing properties of hierarchical SnO2 hollow nanosheets with mesoporous and multilayered interiors

Cited by 50 publications

References 34 publications

Thin 2D: The New Dimensionality in Gas Sensing

Thin 2D: The New Dimensionality in Gas Sensing

Mini Review: Recent Green Advances on the Preparation of V2O5, ZnO, and NiO Nanosheets

In Situ Techniques for Probing Kinetics and Mechanism of Hollowing Nanostructures through Direct Chemical Transformations

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Mini Review: Recent Green Advances on the Preparation of V₂O₅, ZnO, and NiO Nanosheets