Photocatalytic producing dihydroxybenzenes from phenol enabled by gathering oxygen vacancies in ultrathin porous ZnO nanosheets

2020 ◽  
Vol 505 ◽  
pp. 144580 ◽  
Author(s):  
Shuying Gao ◽  
Fu Yang ◽  
Changjian Song ◽  
Qiong Cai ◽  
Ruyi Wang ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Zno Nanosheets

Oxygen Vacancies in ZnO Nanosheets Enhance CO2 Electrochemical Reduction to CO

2018 ◽  
Vol 130 (21) ◽  
pp. 6162-6167 ◽  
Author(s):  
Zhigang Geng ◽  
Xiangdong Kong ◽  
Weiwei Chen ◽  
Hongyang Su ◽  
Yan Liu ◽  
...  
Keyword(s):  
Electrochemical Reduction ◽  
Oxygen Vacancies ◽  
Zno Nanosheets

Oxygen Vacancies in ZnO Nanosheets Enhance CO2 Electrochemical Reduction to CO

2018 ◽  
Vol 57 (21) ◽  
pp. 6054-6059 ◽  
Author(s):  
Zhigang Geng ◽  
Xiangdong Kong ◽  
Weiwei Chen ◽  
Hongyang Su ◽  
Yan Liu ◽  
...  
Keyword(s):  
Electrochemical Reduction ◽  
Oxygen Vacancies ◽  
Zno Nanosheets

Preparation and Photoluminescence Properties of ZnO-Covered Carbon Fibers

2012 ◽  
Vol 463-464 ◽  
pp. 510-514
Author(s):  
Jun Zeng
Keyword(s):  
Carbon Fibers ◽  
Oxygen Vacancies ◽  
Green Emission ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
Red Emission ◽  
Interstitial Carbon ◽  
X Ray ◽  
Zno Nanosheets ◽  
Pl Spectrum

This paper reports that ZnO nanosheet-covered carbon fibers are synthesized by thermal oxidation of zinc films deposited on carbon fiber surfaces. The structure and optical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectrum. The result shows that all of the cabon fibers are coated ZnO nanosheets. An orange-red emission around 683 nm was found in PL spectrum when the sample prepared at 400 oC for 4 hours in air. I considered that the growth of ZnO nanosheets may be related to the size of substrates and reaction temperature. The orange-red emission was resulted from the interstitial carbon of ZnO-nanosheet-covered fibers, and green emission results from the oxygen vacancies.

ZnO Nanosheets Abundant in Oxygen Vacancies Derived from Metal‐Organic Frameworks for ppb‐Level Gas Sensing

2019 ◽  
Vol 31 (11) ◽  
pp. 1807161 ◽  
Author(s):  
Hongye Yuan ◽  
Saif Abdulla Ali Alateeqi Aljneibi ◽  
Jiaren Yuan ◽  
Yuxiang Wang ◽  
Hui Liu ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Gas Sensing ◽  
Metal Organic Frameworks ◽  
Zno Nanosheets ◽  
Metal Organic

scholarly journals Biosensors: ZnO Nanosheets Abundant in Oxygen Vacancies Derived from Metal‐Organic Frameworks for ppb‐Level Gas Sensing (Adv. Mater. 11/2019)

2019 ◽  
Vol 31 (11) ◽  
pp. 1970076 ◽  
Author(s):  
Hongye Yuan ◽  
Saif Abdulla Ali Alateeqi Aljneibi ◽  
Jiaren Yuan ◽  
Yuxiang Wang ◽  
Hui Liu ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Gas Sensing ◽  
Metal Organic Frameworks ◽  
Zno Nanosheets ◽  
Metal Organic

Conditions for atomic imaging of mullite

1989 ◽  
Vol 47 ◽  
pp. 418-419
Author(s):  
T. A. Epicier ◽  
G. Thomas
Keyword(s):  
Oxygen Vacancies ◽  
High Resolution Electron Microscopy ◽  
Ceramic Materials ◽  
Work Conditions ◽  
Real Space ◽  
Potential Candidate ◽  
Silicate Mineral ◽  
Resolution Electron ◽  
The Subject ◽  
Aluminium Silicate

Mullite is an aluminium-silicate mineral of current interest since it is a potential candidate for high temperature applications in the ceramic materials field.In the present work, conditions under which the structure of mullite can be optimally imaged by means of High Resolution Electron Microscopy (HREM) have been investigated. Special reference is made to the Atomic Resolution Microscope at Berkeley which allows real space information up to ≈ 0.17 nm to be directly transferred; numerous multislice calculations (conducted with the CEMPAS programs) as well as extensive experimental through-focus series taken from a commercial “3:2” mullite at 800 kV clearly show that a resolution of at least 0.19 nm is required if one wants to get a straightforward confirmation of atomic models of mullite, which is known to undergo non-stoichiometry associated with the presence of oxygen vacancies.Indeed the composition of mullite ranges from approximatively 3Al2O3-2SiO2 (referred here as 3:2-mullite) to 2Al2O3-1SiO2, and its structure is still the subject of refinements (see, for example, refs. 4, 5, 6).

Investigation of Some Characterizations of Black TiO\(_2\) Nanotubes Via Spectroscopic Methods

2019 ◽  
Vol 29 (2) ◽  
pp. 189 ◽  
Author(s):  
Tho Truong Nguyen ◽  
Thi Minh Cao ◽  
Hieu Van Le ◽  
Viet Van Pham
Keyword(s):  
Water Splitting ◽  
Oxygen Vacancies ◽  
Light Response ◽  
Nanotube Arrays ◽  
Spectroscopic Methods ◽  
Visible Light Response ◽  
Uv Visible ◽  
Visible Reflectance ◽  
Splitting Effect ◽  
Anodization Method

The black TiO\(_2\) with substantial Ti\(^3+\) and oxygen vacancies exhibit an excellent photoelectrochemical water-splitting performance due to the improved charge transport the extended visible light response. In this study, black TiO\(_2\) nanotube arrays synthesized by the anodization method, and then, they have been investigated some characterizations by spectroscopic methods such as UV-visible reflectance (UV-vis DRS), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, and photoluminescence spectrum. The results showed that some highlighted properties of the black TiO2 nanotube arrays and they could apply for water-splitting effect.

Oxygen Vacancies in Zirconium Oxide as the Blue Luminescence Centers and Traps Responsible for Charge Transport

2020 ◽  
Author(s):  
Damir R. Islamov ◽  
Vladimir A. Gritsenko ◽  
Timofey V. Perevalov ◽  
Vladimir Sh. Aliev ◽  
Alexander P. Yelisseyev ◽  
...  
Keyword(s):  
Charge Transport ◽  
Zirconium Oxide ◽  
Oxygen Vacancies ◽  
Blue Luminescence ◽  
Luminescence Centers

Oxidized indium with transformable dimensions for CO2 electroreduction toward formate aided by oxygen vacancies

2020 ◽  
Vol 4 (7) ◽  
pp. 3726-3731
Author(s):  
Fenghui Ye ◽  
Jinghui Gao ◽  
Yilin Chen ◽  
Yunming Fang
Keyword(s):  
Crucial Role ◽  
Oxygen Vacancies ◽  
Value Added ◽  
Promising Technique ◽  
Co2 Electroreduction ◽  
Value Added Products

Electroreduction of CO2 into value-added products is a promising technique in which the structure of the catalyst plays a crucial role.

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