scholarly journals Retraction: Enhanced adsorption of Eu(iii) on mesoporous Al2O3/expanded graphite composites investigated by macroscopic and microscopic techniques

2020 ◽  
Vol 49 (17) ◽  
pp. 5742-5742
Author(s):  
Yubing Sun ◽  
Changlun Chen ◽  
Xiaoli Tan ◽  
Dadong Shao ◽  
Jiaxing Li ◽  
...  
Keyword(s):  
Expanded Graphite ◽  
Dalton Trans ◽  
Enhanced Adsorption ◽  
Graphite Composites ◽  
Microscopic Techniques

Retraction of ‘Enhanced adsorption of Eu(iii) on mesoporous Al2O3/expanded graphite composites investigated by macroscopic and microscopic techniques’ by Yubing Sun et al., Dalton Trans., 2012, 41, 13388–13394.

Retracted Article: Enhanced adsorption of Eu(iii) on mesoporous Al2O3/expanded graphite composites investigated by macroscopic and microscopic techniques

2012 ◽  
Vol 41 (43) ◽  
pp. 13388-13394 ◽  
Author(s):  
Yubing Sun ◽  
Changlun Chen ◽  
Xiaoli Tan ◽  
Dadong Shao ◽  
Jiaxing Li ◽  
...  
Keyword(s):  
Adsorption Mechanism ◽  
Surface Complexation ◽  
Expanded Graphite ◽  
Outer Sphere ◽  
Sphere Surface ◽  
Inner Sphere ◽  
Retracted Article ◽  
Enhanced Adsorption ◽  
Graphite Composites ◽  
Microscopic Techniques

The adsorption mechanism between Eu(iii) and mesoporous Al2O3/EG composites shifts from outer-sphere to inner-sphere surface complexation with increasing pH.

Activated Nitrogen-Enriched Carbon/Reduced Expanded Graphite Composites for Supercapacitors

2011 ◽  
Vol 211-212 ◽  
pp. 440-444 ◽  
Author(s):  
Shu Hui Tong ◽  
Chuan Li Qin ◽  
Zheng Jin ◽  
Xue Song Wang ◽  
Xu Duo Bai
Keyword(s):  
Electrode Material ◽  
In Situ Polymerization ◽  
Expanded Graphite ◽  
Mechanical Mixture ◽  
Electrochemical Measurements ◽  
Electrochemical Performances ◽  
Cycle Stability ◽  
Symmetric Supercapacitor ◽  
Graphite Composites

Activated nitrogen-enriched carbon/reduced expanded graphite composites (ANC/REG-c) with different composite ratio were prepared by in-situ polymerization, carbonization, activation and reduction of aniline and expanded graphite. These were characterized by XPS, SEM and electrochemical measurements. XPS shows that N atoms exist in the ANC and ANC/REG-c. Compared to mechanical mixture of ANC and REG(ANC/REG-m), ANC/REG-c shows lower resistance and higherCp1(185.4 F/g) vs 124.3 F/g of ANC/REG-m measured by CV due to the introduction of the composite sturcture. When the composite ratio of ANC/REG-c is 6:1, the ANC/REG-c shows the highestCp1(264.0 F/g) and its symmetric supercapacitor also shows the best synthetical electrochemical performances. The optimal supercapacitor presents good cycle stability. ANC/REG-c is a suitable electrode material for supercapacitors.

scholarly journals Synthesis, Structure and Mechanical Properties of Bulk “Copper-Graphene” Composites

2018 ◽  
Vol 57 (2) ◽  
pp. 151-157 ◽  
Author(s):  
V.G. Konakov ◽  
O.Yu. Kurapova ◽  
E.N. Solovyeva ◽  
I.V. Lomakin ◽  
I.Yu. Archakov
Keyword(s):  
Pure Copper ◽  
Expanded Graphite ◽  
Planetary Mill ◽  
Strength Increase ◽  
Powder Metallurgy Process ◽  
Graphene Flakes ◽  
Tensile Strength Increase ◽  
Few Layer Graphene ◽  
Graphite Composites ◽  
Metallurgy Process

Abstract Bulk copper, copper-graphene and copper-graphite composites were produced from copper-thermally expanded graphite (TEG) powder mixtures with 0-3 wt.% TEG contents via modified powder metallurgy process that includes powder milling in a planetary mill at 350 rpm for 5 hours, compaction, and vacuum annealing at 1030 °C for 1 hour. Phase composition and microstructure of the composites were analysed by XRD and SEM techniques. According to Raman spectroscopy, TEG transforms into a few layer graphene flakes in case of composites with 0.1-1 wt.% of carbon additive, while for 3 wt.% of carbon additive it remains in the form of graphite. The addition of 0.1 wt.% TEG results in the tensile strength increase up to 160 MPa (from 93 MPa for pure copper specimen synthesized via the similar synthesis route). Vickers hardness obtained for Specimens under the study is independent fromthe composite composition.

Effect of TiO2 nanoparticles on the resistivity and gas-sensing performance of poly(vinyl chloride)-expanded graphite composites

2007 ◽  
Vol 43 (4) ◽  
pp. 358-363 ◽  
Author(s):  
L. S. Semko ◽  
Ya. I. Kruchek ◽  
Yu. A. Shevlyakov ◽  
P. P. Gorbik ◽  
E. I. Oranskaya
Keyword(s):  
Tio2 Nanoparticles ◽  
Vinyl Chloride ◽  
Gas Sensing ◽  
Expanded Graphite ◽  
Poly Vinyl Chloride ◽  
Graphite Composites ◽  
Sensing Performance
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