Defect engineering of two-dimensional WO 3 nanosheets for enhanced electrochromism and photoeletrochemical performance

Zhou, Xiaofang; Zheng, Xiaoli; Yan, Bo; Xu, Tao

doi:10.1016/j.apsusc.2016.12.072

Cited by 60 publications

(24 citation statements)

References 39 publications

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“…In the W 4f spectrum of W, shown in Fig. 5(d), the main peaks at approximately 37.7 and 35.6 eV are observed, which result from W 4f5/2 and W 4f7/2 of W 6+ , respectively [55]. Two shoulder peaks assigned to W 5+ and centered at approximately 37.5 and 35.4 eV are also noticed [56].…”

Section: Physicochemical Properties Of the Samplesmentioning

confidence: 84%

Enhanced photocatalytic H2-production activity of WO3/TiO2 step-scheme heterojunction by graphene modification

Meng

Cheng

et al. 2020

Chinese Journal of Catalysis

511

160

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Section: Physicochemical Properties Of the Samplesmentioning

confidence: 84%

Enhanced photocatalytic H2-production activity of WO3/TiO2 step-scheme heterojunction by graphene modification

Meng

Cheng

et al. 2020

Chinese Journal of Catalysis

511

160

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“…In the following years, different methods of synthesis were reported. The 2D-WO 3 nanoparticles were crystallized in the monoclinic WO 3 phase via wet chemical synthesis, [12] topochemical conversion, [13] hydrothermal, [8] solvothermal, [14] exfoliation and oxidation of WS 2 , [15] and microwave irradiation, [16] to name a few. The morphologies of synthesized nanoparticles range from rectangular nanoplates, [13] irregularly shaped nanodisks, [13] leaf-like nanoplatelets, [17] and nanoflakes, [18] with the sizes ranging from 20 nm to 500 nm in lateral dimensions and from 5 nm to 60 nm in thickness.…”

Section: Synthesis Morphology and Structurementioning

confidence: 99%

Recent Progress in the Synthesis and Potential Applications of Two‐Dimensional Tungsten (Sub)oxides

Pirker

Višić

2021

Israel Journal of Chemistry

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While WO3 is one of the most studied metal‐oxides in bulk, it is increasingly gaining interest as a two‐dimensional (2D) material as it exhibits different behaviour compared to bulk. In addition, many substoichiometric WO3–x (0≤x≤1) phases exist both in bulk and 2D form. These Magneli phases have different physical and chemical properties than their WO3 counterparts. By introducing oxygen vacancies, the physical and chemical properties of 2D tungsten (sub)oxide nanomaterials can be further altered. This review focuses on synthesis pathways of 2D tungsten (sub)oxides reported so far, and their subsequent use for various applications. The different stoichiometries and additional oxygen vacancies that appear in these materials, combined with their low thickness and high surface area, make them interesting candidates for gas sensing, catalytic application or in electronic devices.

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“…In addition, their uniquep hysicochemical properties make them effective electrode materials for variousa pplications,a sd epicted in Scheme2. [63][64][65][66][67] Although tungsten oxidesh ave good chargestoragep roperties because of their multiple transition states, recents tudies have proposed that tungsten oxide based materials frequently have ap oor rate capability,alarge irreversible capacity, energy inadequacy,alow coulombic efficiency,a nd a low cyclings tability.T hese impediments are supposed to be embedded in their charge-storage mechanisms. However,i ti s difficult to say that these are simply relatedtot heir microstructures without acomplete understanding of their causes and effects.…”

Section: Importance Of Wo 3 -Based Materials In Electrochemical Energmentioning

confidence: 99%

Review on Recent Progress in the Development of Tungsten Oxide Based Electrodes for Electrochemical Energy Storage

Shinde

2019

ChemSusChem

151

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Current progress in the advancement of energy‐storage devices is the most important factor that will allow the scientific community to develop resources to meet the global energy demands of the 21st century. Nanostructured materials can be used as effective electrodes for energy‐storage devices because they offer various promising features, including high surface‐to‐volume ratios, exceptional charge‐transport features, and good physicochemical properties. Until now, the successful research frontrunners have focused on the preparation of positive electrode materials for energy‐storage applications; nevertheless, the electrochemical performance of negative electrodes is less frequently reported. This review mainly focuses on the current progress in the development of tungsten oxide‐based electrodes for energy‐storage applications, primarily supercapacitors (SCs) and batteries. Tungsten is found in various stoichiometric and nonstoichiometric oxides. Among the different tungsten oxide materials, tungsten trioxide (WO3) has been intensively investigated as an electrode material for different applications because of its excellent charge‐transport features, unique physicochemical properties, and good resistance to corrosion. Various WO3 composites, such as WO3/carbon, WO3/polymers, WO3/metal oxides, and tungsten‐based binary metal oxides, have been used for application in SCs and batteries. However, pristine WO3 suffers from a relatively low specific surface area and low energy density. Therefore, it is crucial to thoroughly summarize recent progress in utilizing WO3‐based materials from various perspectives to enhance their performance. Herein, the potential‐ and pH‐dependent behavior of tungsten in aqueous media is discussed. Recent progress in the advancement of nanostructured WO3 and tungsten oxide‐based composites, along with related charge‐storage mechanisms and their electrochemical performances in SCs and batteries, is systematically summarized. Finally, remarks are made on future research challenges and the prospect of using tungsten oxide‐based materials to further upgrade energy‐storage devices.

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Defect engineering of two-dimensional WO 3 nanosheets for enhanced electrochromism and photoeletrochemical performance

Cited by 60 publications

References 39 publications

Enhanced photocatalytic H2-production activity of WO3/TiO2 step-scheme heterojunction by graphene modification

Enhanced photocatalytic H2-production activity of WO3/TiO2 step-scheme heterojunction by graphene modification

Recent Progress in the Synthesis and Potential Applications of Two‐Dimensional Tungsten (Sub)oxides

Review on Recent Progress in the Development of Tungsten Oxide Based Electrodes for Electrochemical Energy Storage

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