A facile synthesis and controlled growth of various MoO3 nanostructures and their gas-sensing properties

Cao, Shixiu; Zhao, Cong; Xu, Jing

doi:10.1007/s42452-019-0944-z

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…Since this species has a stronger bonding with adsorbed oxygen, it provides more active sites for gas sensor reactions. Other 1D nanorods of α-MoO 3 were prepared by Cao et al [68] using a similar method with the assistance of hydrochloric acid (HCl) and cetyltrimethylammonium bromide (CTAB) at 180-190 °C for 24 h. The process led to nanorod formation with a diameter and length in the range of 100-200 nm and 1-3 µm, respectively. The resulting nanorod shows a response of 35 toward 400 ppm ethanol at a relatively high optimal temperature of 350 °C.…”

Section: Morphological Designmentioning

confidence: 99%

“…(ppm) T (°C) Response ( R a / R g ) or (R air -R gas )/R air ) Response/recovery times (s) Refs. Morphology design α -MoO 3 nanowires H 2 15,000 RT 0.85% 3/2.7 [ 48 ] α -MoO 3 nanorods Ethanol 400 350 35 N/A [ 68 ] α -MoO 3 nanobelts Xylene 100 206 3 7/87 [ 69 ] α -MoO 3 nanobelts Ethanol 800 300 174 ~ 40/ ~ 5 [ 70 ] α -MoO 3 nanosheets Alcohol 100 300 33.1 21/10 [ 74 ] α -MoO 3 nanoflakes Alcohol 100 300 28.1 23/13 [ 74 ] α -MoO 3 sheets NO 2 ...…”

Section: Molybdenum Oxide (Moo 3 ) Gas Sensing Materialsmentioning

confidence: 99%

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Advanced Strategies to Improve Performances of Molybdenum-Based Gas Sensors

et al. 2021

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Molybdenum-based materials have been intensively investigated for high-performance gas sensor applications. Particularly, molybdenum oxides and dichalcogenides nanostructures have been widely examined due to their tunable structural and physicochemical properties that meet sensor requirements. These materials have good durability, are naturally abundant, low cost, and have facile preparation, allowing scalable fabrication to fulfill the growing demand of susceptible sensor devices. Significant advances have been made in recent decades to design and fabricate various molybdenum oxides- and dichalcogenides-based sensing materials, though it is still challenging to achieve high performances. Therefore, many experimental and theoretical investigations have been devoted to exploring suitable approaches which can significantly enhance their gas sensing properties. This review comprehensively examines recent advanced strategies to improve the nanostructured molybdenum-based material performance for detecting harmful pollutants, dangerous gases, or even exhaled breath monitoring. The summary and future challenges to advance their gas sensing performances will also be presented.

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Section: Morphological Designmentioning

confidence: 99%

Section: Molybdenum Oxide (Moo 3 ) Gas Sensing Materialsmentioning

confidence: 99%

Advanced Strategies to Improve Performances of Molybdenum-Based Gas Sensors

et al. 2021

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“…MoO 3 has a wide range of applications in many fields such as electrochromics [7][8][9], photochromics [10,11], electrochemical capacitors [12,13], electrocatalytic activities [14,15], gas sensors [16][17][18][19], and lithium-ion batteries [20][21][22][23][24], which makes it a more popular transition metal oxide. Recently, the electrochromic properties of MoO 3 nanomaterials have attracted much attention.…”

Section: Introductionmentioning

confidence: 99%

Electrochromic Performance and Capacitor Performance of α-MoO3 Nanorods Fabricated by a One-Step Procedure

et al. 2021

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In this paper, we propose for the first time the synthesis of α-MoO3 nanorods in a one-step procedure at mild temperatures. By changing the growth parameters, the microstructure and controllable morphology of the resulting products can be customized. The average diameter of the as-prepared nanorods is about 200 nm. The electrochromic and capacitance properties of the synthesized products were studied. The results show that the electrochromic properties of α-MoO3 nanorods at 550 nm have 67% high transmission contrast, good cycle stability and fast response time. The MoO3 nanorods also exhibit a stable supercapacitor performance with 98.5% capacitance retention after 10,000 cycles. Although current density varies sequentially, the nanostructure always exhibits a stable capacitor to maintain 100%. These results indicate the as-prepared MoO3 nanorods may be good candidates for applications in electrochromic devices and supercapacitors.

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Rod-shaped microparticles — an overview of synthesis and properties

et al. 2023

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Micro particles come in a wide variety of architectural designs and shapes. It is time to look beyond the conventional spherical morphology and focus on anisotropic systems. Rod-shaped micro particles in particular exhibit numerous unique behaviors based on their structural characteristics. Because of their various shapes, architectures, and material compositions, which are based on the wide range of synthesis possibilities, they possess an array of interesting characteristics and applications. This review summarizes and provides an overview of the substantial amount of work that has already been published in the field of rod-shaped micro particles. Nevertheless, it also reveals limitations and potential areas for development.

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A facile synthesis and controlled growth of various MoO3 nanostructures and their gas-sensing properties

Cited by 8 publications

References 24 publications

Advanced Strategies to Improve Performances of Molybdenum-Based Gas Sensors

Advanced Strategies to Improve Performances of Molybdenum-Based Gas Sensors

Electrochromic Performance and Capacitor Performance of α-MoO3 Nanorods Fabricated by a One-Step Procedure

Rod-shaped microparticles — an overview of synthesis and properties

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