ChemInform Abstract: An Unusual Metallic Oxygen Cluster Consisting of a {AlMo12O40(MoO2)2}.

ABSTRACTThe defect annihilation in CZ-crystal was first detected during the process of oxygen out-diffusion, by the positron measurements with a variable-energy beam. The defects, which were related to oxygen atoms such as oxygen cluster, were mainly annihilated at the high temperature, ex., 1150°C. The defect concentration was decreasing down to one tenth, compared with that for an as-grown crystal.

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Cluster Self-Organization of Intermetallic Systems: Cs6 and Cs4 Metal Clusters and Cs11O3 Metal–Oxygen Cluster for the Self-Assembly of the (Cs4)(Cs6)(Cs11O3) Crystal Structure

Glass Physics and Chemistry ◽

10.1134/s1087659618050164 ◽

2018 ◽

Vol 44 (5) ◽

pp. 375-380

Author(s):

V. Ya. Shevchenko ◽

V. A. Blatov ◽

G. D. Ilyushin

Keyword(s):

Crystal Structure ◽

Self Assembly ◽

Metal Clusters ◽

The Self ◽

Self Organization ◽

Oxygen Cluster

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Ion chromatographic analysis of inorganic molecular metal-oxygen cluster compounds

Journal of Chromatography A ◽

10.1016/0021-9673(92)80078-9 ◽

1992 ◽

Vol 602 (1-2) ◽

pp. 173-178 ◽

Cited By ~ 3

Author(s):

A. Jürgensen ◽

G.B. McGarvey ◽

J.B. Moffat

Keyword(s):

Chromatographic Analysis ◽

Cluster Compounds ◽

Oxygen Cluster

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A Mixed-Valence Tin–Oxygen Cluster Containing Six Peripheral Ferrocene Units

Angewandte Chemie International Edition ◽

10.1002/anie.200353359 ◽

2004 ◽

Vol 43 (18) ◽

pp. 2409-2411 ◽

Cited By ~ 86

Author(s):

Guo-Li Zheng ◽

Jian-Fang Ma ◽

Zhong-Min Su ◽

Li-Kai Yan ◽

Jin Yang ◽

...

Keyword(s):

Mixed Valence ◽

Oxygen Cluster

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Hydrothermal Synthesis and Crystal Structure of a New Bisupporting Metal-Oxygen Cluster with Bicapped Pseudo-Keggin Structure: [CuII{Cl0.5Cl(phen)}]2{[PMoV 6MoVI 6O40(VIVO)2][CuII(phen)2]2}·2H2O (phen = 1,10-Phenathroline)

Synthesis and Reactivity in Inorganic Metal-Organic and Nano-Metal Chemistry ◽

10.1080/15533174.2010.522538 ◽

2010 ◽

Vol 40 (10) ◽

pp. 748-753 ◽

Cited By ~ 9

Author(s):

Dong-Bin Dang ◽

Yan-Hua Fan ◽

Yan Bai ◽

Ya-Nan Jin

Keyword(s):

Crystal Structure ◽

Hydrothermal Synthesis ◽

Keggin Structure ◽

Synthesis And Crystal Structure ◽

Oxygen Cluster

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Structure and Composition Factors in the Acidity and Basicity of Inorganic Molecular Metal-Oxygen Cluster Catalysts and Their Influence on the Surface and Catalytic Properties

Acidity and Basicity of Solids ◽

10.1007/978-94-011-0986-4_9 ◽

1994 ◽

pp. 217-235 ◽

Cited By ~ 1

Author(s):

J. B. Moffat

Keyword(s):

Catalytic Properties ◽

Oxygen Cluster ◽

Acidity And Basicity ◽

Composition Factors

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Oxygen-Cluster-Modified Anatase with Graphene Leads to Efficient and Recyclable Photo-Catalytic Conversion of CO2 to CH4 Supported by the Positron Annihilation Study

Scientific Reports ◽

10.1038/s41598-019-49694-w ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 2

Author(s):

Gulzar Ahmed ◽

Fazal Raziq ◽

Muddasir Hanif ◽

Javid Khan ◽

Khurram Shahzad Munawar ◽

...

Keyword(s):

Graphene Oxide ◽

Positron Annihilation ◽

Concentration Ratio ◽

Surface Defects ◽

Response Analysis ◽

Photocurrent Response ◽

Photo Catalytic Activity ◽

Oxygen Cluster ◽

Positron Annihilation Study ◽

First Time

Abstract Anatase TiO2 hollow nanoboxes were synthesized and combined with the graphene oxide to get nanocomposite of TiO2/rGO (TG). Graphene oxide was used to modify the Oxygen-Clusters and bulk to surface defects. Anatase and TG composite were characterized with the positron annihilation, XPS, EPR, EIS and photocurrent response analysis. The relative affects of defects on the photocatalytic reduction (CO2 to CH4) were studied. The TG composites showed highest photo-catalytic activity after GO coupling (49 µmol g−1 h−1), 28.6 times higher photocurrent yields much higher quantum efficiency (3.17%@400 nm) when compared to the TiO2 nanoboxes. The mechanism of enhanced photo-catalytic CO2 conversion to CH4 elucidated through electrochemical and photo-catalytic experiments with traceable isotope containing carbon dioxide (13CO2). For the first time we discovered that diminishing the comparative concentration ratio of anatase from the bulk to surface defects could significantly increase the conversion of CO2 to CH4.

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