Corrigendum to “Oxygen vacancy effect on photoluminescence of KNb3O8 nanosheets” [Appl. Surf. Sci. 439 (2018) 983–990]

Li, Rui; Liu, Liying; Ming, Bangming; Ji, Yu-Hang; Wang, Ru-Zhi

doi:10.1016/j.apsusc.2018.03.117

Cited by 11 publications

(12 citation statements)

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“…The single step preparation process initiated novel design that effectively enhanced the charge transfer, conductivity as well as interconnectivity of the metal oxide particles for better device efficacy. [244] Electrophoretic deposition technique was used to fabricate holey-reduced graphene oxide-RuO 2 based solid state flexible supercapacitor electrodes that documented superior GCD stability and 88.5 % capacitance retention efficacy even after continuous 10,000 GCD cycles in PVA-H 2 SO 4 gel electrolyte. [245] Electrophoretic deposition initiated effective layer-by-layer assembling of composite sheets for highly compact, mechanical flexibility films.…”

Section: Ruo 2 -Based Functionalized Graphene Binary Compositesmentioning

confidence: 99%

Recent Progress in Ruthenium Oxide‐Based Composites for Supercapacitor Applications

Majumdar¹,

Maiyalagan

Jiang³

2019

ChemElectroChem

252

147

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Electrochemical energy storage has emerged as one of the principal topics of present‐day research to deal with the high energy demands of modern society. Accordingly, besides fuel cells and battery technologies, interesting and challenging results have been observed in the recent past, during the materialization of “supercapacitors” or “ultracapacitors”, which have provoked a sharp increase in research inclination to revisit this aspect of renewable and sustainable energy storage. Supercapacitor performances are largely dependent on electrode materials, the nature of the electrolyte used, and the range of voltage windows employed. Carbon‐based electrode materials have tunable properties such as electrical conductivity, extensive surface area, and faster electron transfer kinetics with low fabrication costs. But their specific capacitances are found to be too low for commercialization. Ruthenium dioxide (RuO2), owing to its high theoretical specific capacitance value (1400–2000 F g−1), has been extensively recognized as a favorable material for supercapacitor devices, but high production cost and agglomeration effects stand as high barriers preventing marketable usage. Consequently, RuO2‐based nanocomposites have been widely studied to optimize the material cost, with simultaneous improvement in the electrochemical performances. This Review describes comprehensively the recent progress in terms of the fabrication and design, electrochemical performance, and achievements of RuO2 and its nanocomposites as electrode materials for supercapacitors, which will be beneficial for further research designing high‐performance supercapacitor devices.

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Section: Ruo 2 -Based Functionalized Graphene Binary Compositesmentioning

confidence: 99%

Recent Progress in Ruthenium Oxide‐Based Composites for Supercapacitor Applications

Majumdar¹,

Maiyalagan

Jiang³

2019

ChemElectroChem

252

147

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“…Indeed, our preliminary experiment showed that the CsPbBr 3 @g-C 3 N 4 composite photocatalyst exhibit a little improvement in photocatalytic activity for CO 2 reduction compared to pristine CsPbBr 3 under the irradiation of visible light. It is known that the polymeric material g-C 3 N 4 is a good support material for single atom [40][41][42][43][44][45][46][47] and metal nanoparticles, [48][49][50] and enhanced solar fuel production can be achieved along with the introduction of these metal catalytic sites.…”

Section: Introductionmentioning

confidence: 99%

Engineering a CsPbBr₃-based nanocomposite for efficient photocatalytic CO₂reduction: improved charge separation concomitant with increased activity sites

Guo

Tang

et al. 2019

RSC Adv.

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Metal-halide perovskite nanocrystals have emerged as one of the promising photocatalysts in the photocatalysis field owing to their low-cost and excellent optoelectronic properties. However, this type of nanocrystals generally displays low activity in photocatalytic CO 2 reduction owing to the lack of intrinsic catalytic sites and insufficient charge separation. Herein, we functionalized CsPbBr 3 nanocrystals with graphitic carbon nitride, containing titanium-oxide species (TiO-CN) to develop an efficient composite catalyst system for photocatalytic CO 2 reduction using water as the electron source.Compared to its congener with pristine CsPbBr 3 , the introduction of TiO-CN could not only increase the number of active sites, but also led to a swift interfacial charge separation between CsPbBr 3 and TiO-CN due to their favorable energy-offsets and strong chemical bonding behaviors, which endowed this composite system with an obviously enhanced photocatalytic activity in the reduction of CO 2 to CO with water as the sacrificial reductant. Over 3-fold and 6-fold higher activities than those of pristine CsPbBr 3 nanocrystals and TiO-CN nanosheets, respectively, were observed under visible light irradiation.Our study provides an effective strategy for improving the photocatalytic activity of metal-halide perovskite nanocrystals, thus promoting their photocatalytic application in the field of artificial photosynthesis. Fig. 4 (a) Photoluminescence spectra of CsPbBr 3 and CsPbBr 3 @TiO-CN. (b) Time-resolved photoluminescence decays of CsPbBr 3 and CsPbBr 3 @TiO-CN. The gray curves are the fitting lines based on a multi-exponential function.This journal is Chem. Rev., 2019, 119, 3962-4179. Fig. 5 (a) The yields of CO generated from the photocatalytic CO 2 reduction reactions with TiO-CN, CsPbBr 3 , CsPbBr 3 @g-C 3 N 4 and CsPbBr 3 @TiO-CN photocatalysts after 10 h of irradiation under a 300 W Xe-lamp with the light intensity of 100 mW cm À2 . Gas chromatograms and mass spectra (GC-MS) of the solar-driven (b) reduction of 13 CO 2 to 13 CO (m/z ¼ 29) and (c) oxidation of H 2 18 O to 18 O 2 (m/z ¼ 36) using CsPbBr 3 @TiO-CN as the photocatalyst.34346 | RSC Adv., 2019,9,[34342][34343][34344][34345][34346][34347][34348] This journal is

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“…1, changing the turbulent boundary layer state of vicinity wall for decreasing velocity gradient is an essential and appropriate measure to reduce drag [12]. Bionic research found that some natural organisms have formed a specific surface structure with anti-drag [13], anti-wear [14,15] and hydrophobic [16,17] performance in the evolution of billions of years for adapting to the living environment. Bionic theories have been applied to many engineering fields, such as microstructured tunnel in the external flow [18] and internal flow [19], bionic pump cylinder liner [20], and bionic bearing slider [21], which settle lots of practical problems.…”

Section: Conventional Hydraulic Drag Reduction Methods Include Develomentioning

confidence: 99%

Investigation on drag reduction performance of pipeline with bioinspired microgrooved surface

Liu¹,

Ni²,

Wang³

et al. 2019

Preprint

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Novel surface morphology of pipeline with transverse microgrooves was proposed for reducing the pressure loss of fluid transport. Numerical simulation and experimental research efforts were undertaken to evaluate the drag reduction performance of bionic pipeline. The computational fluid dynamic calculation, using SST κ-ω turbulent model, shown that the “vortex cushioning effect” and “driving effect” produced by the vortexes in the microgrooves were the main reason for the drag reduction. The shear stress of the microgrooved surface was reduced significantly owing to the decline of the velocity gradient; then bionic pipeline achieved drag reduction effect in the pipe and concentric annulus flow. The primary and secondary order of effect on the drag reduction and optimal microgroove geometric parameters were obtained by orthogonal analysis method. The comparative experiments were conducted in a water tunnel, and a maximum drag reduction rate of 3.21% was achieved. The numerical simulation and experimental results were cross-checked and consistent with each other to verify that the utilization of bionic theory to reduce the pressure loss of fluid transport is feasible. Results can provide theoretical guidance for the energy saving of pipeline transportation.

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Corrigendum to “Oxygen vacancy effect on photoluminescence of KNb3O8 nanosheets” [Appl. Surf. Sci. 439 (2018) 983–990]

Cited by 11 publications

References 0 publications

Recent Progress in Ruthenium Oxide‐Based Composites for Supercapacitor Applications

Recent Progress in Ruthenium Oxide‐Based Composites for Supercapacitor Applications

Engineering a CsPbBr₃-based nanocomposite for efficient photocatalytic CO₂reduction: improved charge separation concomitant with increased activity sites

Investigation on drag reduction performance of pipeline with bioinspired microgrooved surface

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Corrigendum to “Oxygen vacancy effect on photoluminescence of KNb3O8 nanosheets” [Appl. Surf. Sci. 439 (2018) 983–990]

Cited by 11 publications

References 0 publications

Recent Progress in Ruthenium Oxide‐Based Composites for Supercapacitor Applications

Recent Progress in Ruthenium Oxide‐Based Composites for Supercapacitor Applications

Engineering a CsPbBr3-based nanocomposite for efficient photocatalytic CO2reduction: improved charge separation concomitant with increased activity sites

Investigation on drag reduction performance of pipeline with bioinspired microgrooved surface

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Engineering a CsPbBr₃-based nanocomposite for efficient photocatalytic CO₂reduction: improved charge separation concomitant with increased activity sites