Hierarchical composites of polypyrrole/graphene oxide synthesized by in situ intercalation polymerization for high efficiency and broadband responses of electromagnetic absorption

2016 ◽  
Vol 127 ◽  
pp. 71-78 ◽  
Author(s):  
Xiangnan Chen ◽  
Jingjing Chen ◽  
Fanbin Meng ◽  
Liming Shan ◽  
Man Jiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Efficiency ◽  
Electromagnetic Absorption ◽  
Hierarchical Composites ◽  
Intercalation Polymerization

Laminated graphene oxide-supported high-efficiency microwave absorber fabricated by an in situ growth approach

Carbon ◽  
2018 ◽  
Vol 129 ◽  
pp. 310-320 ◽  
Author(s):  
Bin Quan ◽  
Xiaohui Liang ◽  
Guangbin Ji ◽  
Jing Lv ◽  
SiSi Dai ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Efficiency ◽  
Microwave Absorber ◽  
In Situ Growth ◽  
Growth Approach

Hierarchical composites of TiO2 nanowire arrays on reduced graphene oxide nanosheets with enhanced photocatalytic hydrogen evolution performance

2014 ◽  
Vol 2 (12) ◽  
pp. 4366-4374 ◽  
Author(s):  
Xinrui Cao ◽  
Guohui Tian ◽  
Yajie Chen ◽  
Juan Zhou ◽  
Wei Zhou ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Nanowire Array ◽  
Nanowire Arrays ◽  
Mechanical Mixing ◽  
Reduced Graphene ◽  
Production Activity ◽  
Hierarchical Composites ◽  
Subsequent Calcination

Reduced graphene oxide (RGO)–TiO2 nanowire array hierarchical composites were prepared via an in situ controlled growth process and subsequent calcination, and showed much higher H2 production activity than that of pure TiO2 and RGO–TiO2 generated by mechanical mixing.

In-situ Modification of Graphene Oxide by Insoluble Sulfur and Application for Nitrile Butadiene Rubber

2020 ◽  
Vol 35 (2) ◽  
pp. 221-228
Author(s):  
S.-B. Chen ◽  
T.-X. Li ◽  
S.-H. Wan ◽  
X. Huang ◽  
S.-W. Cai ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Butadiene Rubber ◽  
Nitrile Butadiene Rubber ◽  
In Situ Modification

scholarly journals Epitaxial Crystallization of Poly(ε-caprolactone) on Reduced Graphene Oxide at a Low Shear Rate by In Situ SAXS/WAXD Methods

ACS Omega ◽  
2020 ◽  
Vol 5 (49) ◽  
pp. 31535-31542
Author(s):  
Weijun Miao ◽  
Feng Wu ◽  
Shiman Zhou ◽  
Guibin Yao ◽  
Yiguo Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Shear Rate ◽  
Reduced Graphene Oxide ◽  
Epitaxial Crystallization ◽  
Reduced Graphene ◽  
Low Shear

scholarly journals Influence of Casting Solvents on CO2/CH4 Separation Using Polysulfone Membranes

Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 286
Author(s):  
Roba M. Almuhtaseb ◽  
Ahmed Awadallah-F ◽  
Shaheen A. Al-Muhtaseb ◽  
Majeda Khraisheh
Keyword(s):  
High Efficiency ◽  
In Situ Synthesis ◽  
Separation Process ◽  
Polymeric Membranes ◽  
Gas Mixture ◽  
Manufacturing Cost ◽  
Binary Gas Mixture ◽  
Maximum Permeability ◽  
Polysulfone Membranes

Polysulfone membranes exhibit resistance to high temperature with low manufacturing cost and high efficiency in the separation process. The composition of gases is an important step that estimates the efficiency of separation in membranes. As membrane types are currently becoming in demand for CO2/CH4 segregation, polysulfone will be an advantageous alternative to have in further studies. Therefore, research is undertaken in this study to evaluate two solvents: chloroform (CF) and tetrahydrofuran (THF). These solvents are tested for casting polymeric membranes from polysulfone (PSF) to separate every single component from a binary gas mixture of CO2/CH4. In addition, the effect of gas pressure was conducted from 1 to 10 bar on the behavior of the permeability and selectivity. The results refer to the fact that the maximum permeability of CO2 and CH4 for THF is 62.32 and 2.06 barrer at 1 and 2 bars, respectively. Further, the maximum permeability of CF is 57.59 and 2.12 barrer at 1 and 2 bars, respectively. The outcome selectivity values are 48 and 36 for THF and CF at 1 bar, accordingly. Furthermore, the study declares that with the increase in pressure, the permeability and selectivity values drop for CF and THF. The performance for polysulfone (PSF) membrane that is manufactured with THF is superior to that of CF relative to the Robeson upper bound. Therefore, through the results, it can be deduced that the solvent during in-situ synthesis has a significant influence on the gas separation of a binary mixture of CO2/CH4.

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