Vitamin C-assisted synthesis and gas sensing properties of coaxial In2O3 nanorod bundles

Li, Xiaowei; Yao, Shiting; Liu, Jiangyang; Sun, Peng; Sun, Yanfeng; Gao, Yuan; Lu, Geyu

doi:10.1016/j.snb.2015.05.038

Cited by 50 publications

(19 citation statements)

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“…The HRTEM image is presented in Figure e. Atomic plane with interplanar distance of 0.292 nm is observed, which could be attributed to the (222) crystal plane of cubic indium oxide . The corresponding selective area electron diffraction (SAED) pattern (Figure f) reveals the polycrystalline nature of the porous In 2 O 3 ‐HNR.…”

Section: Resultsmentioning

confidence: 93%

Metal‐Organic Frameworks‐Derived Porous In₂O₃ Hollow Nanorod for High‐Performance Ethanol Gas Sensor

et al. 2017

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Designing hollow micro/nano structures for gas sensing materials is highly desirable for boosting gas sensing properties and still remains challenging, especially through a simple and economic way. Herein, porous In2O3 hollow nanorod (In2O3‐HNR), which was successfully fabricated by thermal decomposition of an In–MOF (CPP‐3) precursor, was applied as gas sensing materials. The pristine CPP‐3 and obtained In2O3‐HNR were systematically characterized by various techniques, such as XRD, SEM, TEM, TGA‐DTA, XPS, Raman and N2 physisorption. Characterization results indicated that the hexagonal rod‐like shape of original CPP‐3 was maintained after calcination, whereas the surface became rough and concave. In addition, the obtained In2O3‐HNR displayed a hollow interior with porous shell composed by In2O3 nanoparticles (9 nm). Taking advantage of this unique porous nanostructure, In2O3‐HNR exhibited a response as high as 6.2 to 5 ppm ethanol at operating temperature of 200 °C, fast response and recovery (3 and 4 s, respectively), and good selectivity to ethanol. The excellent ethanol‐sensing properties endow this In–MOF templated In2O3‐HNR material with a promising application in practical detection of ethanol gas. This method could be extended to the fabrication of other micro/nano structures with well‐defined morphology and composition for high‐performance gas sensing considering diversity of MOFs family.

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Section: Resultsmentioning

confidence: 93%

Metal‐Organic Frameworks‐Derived Porous In₂O₃ Hollow Nanorod for High‐Performance Ethanol Gas Sensor

et al. 2017

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“…Rapid synthesis of In 2 O 3 using vitamin C as a structuredirecting agent was reported by Li et al [115]. They discussed the formation of cubic In 2 O 3 with nanorod bundle-like morphology ( Fig.…”

Section: In 2 Omentioning

confidence: 87%

“…7. It includes SnO 2 nanosheets [112], WO 3 spheres [113], ZnO flower-like [114] and In 2 O 3 bundle-like structures [115].…”

Section: N-type Metal Oxide Semiconductorsmentioning

confidence: 99%

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Accelerated microwave-assisted hydrothermal/solvothermal processing: Fundamentals, morphologies, and applications

2018

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This article is designed to serve as a roadmap for understanding the fundamentals, the key advantages and the potential applications of microwave-assisted hydrothermal/solvothermal (MAH/S) processing. MAH/S synthesis is a versatile chemical method for preparing a diversity of materials such as metals, semiconductors, electroceramics, graphene and their composites as bulk powders, thin films, or single crystals. The key to improve performance of these materials is achieving controlled morphologies (0 to 3D dimensionality) that favor desirable physical-chemical phenomena at the surface, and in the bulk of these advanced materials. The main features related to the improvement of the thermal and non-thermal effects associated with the use of microwave power concurrently with hydrothermal or solvothermal methods are discussed. Furthermore, the main crystal growth mechanisms (Ostwald ripening and oriented attachment) of these solids in solution under MAH/S treatment are described. Products synthesized by the MAH/S, particularly of interest in the development of gas sensors, batteries, fuel cells, solar cells and photocatalysts are emphasized. We conclude by envisaging new future directions for the use of this rapid and versatile processing approach.

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“…In 2 O 3 is an n-type semiconductor, which has been widely used due to its stable and nontoxic characteristics [12]. In recent years, various nanostructures of In 2 O 3 such as nanoparticles [13], nanofibers [14], nanorods [15] and nanotubes [16] have been synthesized and applied to the field of gas sensors. However, porous In 2 O 3 nanotube structure has rarely been reported.…”

mentioning

confidence: 99%

Porous Nd-doped In2O3 nanotubes with excellent formaldehyde sensing properties

Wang

Zhang

et al. 2016

Chemical Physics Letters

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Vitamin C-assisted synthesis and gas sensing properties of coaxial In2O3 nanorod bundles

Cited by 50 publications

References 52 publications

Metal‐Organic Frameworks‐Derived Porous In₂O₃ Hollow Nanorod for High‐Performance Ethanol Gas Sensor

Metal‐Organic Frameworks‐Derived Porous In₂O₃ Hollow Nanorod for High‐Performance Ethanol Gas Sensor

Accelerated microwave-assisted hydrothermal/solvothermal processing: Fundamentals, morphologies, and applications

Porous Nd-doped In2O3 nanotubes with excellent formaldehyde sensing properties

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Vitamin C-assisted synthesis and gas sensing properties of coaxial In2O3 nanorod bundles

Cited by 50 publications

References 52 publications

Metal‐Organic Frameworks‐Derived Porous In2O3 Hollow Nanorod for High‐Performance Ethanol Gas Sensor

Metal‐Organic Frameworks‐Derived Porous In2O3 Hollow Nanorod for High‐Performance Ethanol Gas Sensor

Accelerated microwave-assisted hydrothermal/solvothermal processing: Fundamentals, morphologies, and applications

Porous Nd-doped In2O3 nanotubes with excellent formaldehyde sensing properties

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Product

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Metal‐Organic Frameworks‐Derived Porous In₂O₃ Hollow Nanorod for High‐Performance Ethanol Gas Sensor

Metal‐Organic Frameworks‐Derived Porous In₂O₃ Hollow Nanorod for High‐Performance Ethanol Gas Sensor