Applications of graphene-based tungsten oxide nanocomposites: a review

2022 ◽  
Author(s):  
Mehr-Un Nisa ◽  
Nimra Nadeem ◽  
Muhammad Yaseen ◽  
Javed Iqbal ◽  
Muhammad Zahid ◽  
...  
Keyword(s):  
Tungsten Oxide

Physical-mechanical characteristics of composite based on polyimide matrix filled with tungsten oxide

2019 ◽  
pp. 15-25
Author(s):  
V. I. Pavlenko ◽  
◽  
G. G. Bondarenko ◽  
N. I. Cherkashina ◽  
◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Mechanical Characteristics ◽  
Polyimide Matrix

PERFORMANCE OF TUNGSTEN OXIDE DOPED TITANIA via SOL-GEL PROCESS FOR PHOTO-DEGRADATION OF TRANS-CINNAMIC ACID

2016 ◽  
Vol 24 (1) ◽  
pp. 75-86
Author(s):  
Y.N. Tan ◽  
◽  
A.H.A. Malek ◽  
M.Z.A. Malek ◽  
M.T. Zainuddin ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Cinnamic Acid ◽  
Sol Gel ◽  
Photo Degradation ◽  
Sol Gel Process ◽  
Doped Titania

scholarly journals Tungsten Oxide Based Sensor for Oxygen Detection

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 952 ◽  
Author(s):  
Wangi Sari ◽  
Simon Leigh ◽  
James Covington
Keyword(s):  
Metal Oxide ◽  
Linear Relationship ◽  
Tungsten Oxide ◽  
Spin Coating ◽  
Low Temperatures ◽  
Oxygen Sensor ◽  
High Response ◽  
Humid Air ◽  
Dry Air ◽  
Oxygen Detection

In this paper we report on the development tungsten oxide based chemiresistive sensors for the monitoring of oxygen at low temperatures (T ≤ 400 °C) in dry and humid air. The sensors were deposited onto alumina substrate by a combination of spin coating and a photolithographic process to define the sensing area. Our results show that the sensors comply with a linear relationship over a 0 to 20% concentration range, with a high response towards oxygen. The highest response was observed at 350 °C (ΔR/Ra = 7.8) in humid and in dry air (ΔR/Ra = 18). This result is a significant improvement over our previous experiments and we believe to take the concept of a metal-oxide based oxygen sensor a step closer.

scholarly journals Evolution of reduction process from tungsten oxide to ultrafine tungsten powder via hydrogen

2021 ◽  
Vol 40 (1) ◽  
pp. 171-177
Author(s):  
Yue Wang ◽  
Ben Fu Long ◽  
Chun Yu Liu ◽  
Gao An Lin
Keyword(s):  
Surface Morphology ◽  
Tungsten Oxide ◽  
Tungsten Powder ◽  
Reduction Process ◽  
Chemical Vapor ◽  
Transition Process ◽  
Vapor Transport ◽  
Fibrous Structure ◽  
Chemical Vapor Transport ◽  
Oxide Particles

Abstract Herein, the evolution of reduction process of ultrafine tungsten powder in industrial conditions was investigated. The transition process of morphology and composition was examined via SEM, XRD, and calcination experiments. The results show that the reduction sequence of WO2.9 was WO2.9 → WO2.72 → WO2 → W on the surface, but WO2.9 → WO2 → W inside the oxide particles. With the aid of chemical vapor transport of WO x (OH) y , surface morphology transformed into rod-like, star-shaped cracking, floret, irregularly fibrous structure, and finally, spherical tungsten particles.

scholarly journals Lattice-water-induced acid sites in tungsten oxide hydrate for catalyzing fructose dehydration

2021 ◽  
Vol 149 ◽  
pp. 106254
Author(s):  
Haolin Sun ◽  
Fei Song ◽  
Chunmei Zhou ◽  
Xiaoyue Wan ◽  
Yuguang Jin ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Acid Sites ◽  
Oxide Hydrate ◽  
Lattice Water ◽  
Fructose Dehydration

scholarly journals Conversion of Methanol on Rutile TiO2 (110) and Tungsten Oxide Clusters: 2. The Role of Defects and Electron Transfer in Bifunctional Oxidic Photocatalysts

2021 ◽  
Author(s):  
Lars Mohrhusen ◽  
Jessica Kräuter ◽  
Katharina Al-Shamery
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Metal Oxide ◽  
Tungsten Oxide ◽  
Organic Compounds ◽  
Uv Irradiation ◽  
Organic P ◽  
Rutile Tio2 ◽  
Metal Oxide Surfaces

The photochemical conversion of organic compounds on tailored transition metal oxide surfaces by (UV) irradiation has found wide applications ranging from the production of chemicals to the degradation of organic...

Z-Scheme Photocarrier Transfer Realized in Tungsten Oxide-Based Photocatalysts by Combining with Bismuth Vanadate Quantum Dots

2021 ◽  
Vol 60 (5) ◽  
pp. 3057-3064
Author(s):  
Bo Liu ◽  
Xiao Jiang ◽  
Xiaolin Jiang ◽  
Yinyi Ma ◽  
Zemin Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Tungsten Oxide ◽  
Bismuth Vanadate

scholarly journals Conversion of Methanol on Rutile TiO2 (110) and Tungsten Oxide Clusters: 1. Population of Defect-Dependent Thermal Reaction Pathways

2021 ◽  
Author(s):  
Lars Mohrhusen ◽  
Katharina Al-Shamery
Keyword(s):  
Tungsten Oxide ◽  
Single Crystals ◽  
Model System ◽  
Thermal Reaction ◽  
Reaction Pathways ◽  
Bifunctional Catalysts ◽  
Rutile Tio2 ◽  
Reaction Routes ◽  
And Tungsten

Tungsten oxide clusters deposited on rutile TiO2 (110) single crystals were used as a model system for heterogenous oxide-oxide bifunctional catalysts. The population of different thermal reaction routes in methanol...

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