Constructing heterostructural Fe@Fe3C@carbon nanotubes/reduced graphene oxide nanocomposites as lightweight and high-efficiency microwave absorbers

2020 ◽  
Vol 8 (41) ◽  
pp. 14515-14522
Author(s):  
Rui Wang ◽  
Xiaosi Qi ◽  
Ren Xie ◽  
Xiu Gong ◽  
Chaoyong Deng ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Efficiency ◽  
Microwave Absorbers ◽  
Reduced Graphene ◽  
Magnetic Heterostructure

Schematic of magnetic heterostructure CNTs/RGO based nanocomposites and comparison diagrams with the recently representative related NCs.

scholarly journals Stable metal anodes enabled by a labile organic molecule bonded to a reduced graphene oxide aerogel

2020 ◽  
Vol 117 (48) ◽  
pp. 30135-30141
Author(s):  
Yue Gao ◽  
Daiwei Wang ◽  
Yun Kyung Shin ◽  
Zhifei Yan ◽  
Zhuo Han ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Efficiency ◽  
High Current Density ◽  
Solid Electrolyte Interphase ◽  
Metal Deposition ◽  
Reduced Graphene ◽  
Lithium Deposition ◽  
Reduced Graphene Oxide Aerogel ◽  
Graphene Oxide Aerogel

Metallic anodes (lithium, sodium, and zinc) are attractive for rechargeable battery technologies but are plagued by an unfavorable metal–electrolyte interface that leads to nonuniform metal deposition and an unstable solid–electrolyte interphase (SEI). Here we report the use of electrochemically labile molecules to regulate the electrochemical interface and guide even lithium deposition and a stable SEI. The molecule, benzenesulfonyl fluoride, was bonded to the surface of a reduced graphene oxide aerogel. During metal deposition, this labile molecule not only generates a metal-coordinating benzenesulfonate anion that guides homogeneous metal deposition but also contributes lithium fluoride to the SEI to improve Li surface passivation. Consequently, high-efficiency lithium deposition with a low nucleation overpotential was achieved at a high current density of 6.0 mA cm−2. A Li|LiCoO2cell had a capacity retention of 85.3% after 400 cycles, and the cell also tolerated low-temperature (−10 °C) operation without additional capacity fading. This strategy was applied to sodium and zinc anodes as well.

High-field emission performance of a NiFe2O4/rGO/CNT tertiary nanocomposite

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 26745-26751 ◽  
Author(s):  
K. Hareesh ◽  
Sachin R. Suryawanshi ◽  
B. Shateesh ◽  
Deodatta M. Phase ◽  
Shailendra S. Dahiwale ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Field Emission ◽  
High Field ◽  
Emission Performance ◽  
Emission Properties ◽  
Field Emission Properties ◽  
Reduced Graphene ◽  
Field Emission Performance

Herein, we report the field emission properties of NiFe2O4/reduced graphene oxide/carbon nanotubes (NGC) and compared them with the field emission properties of NiFe2O4/carbon nanotubes (NC) and NiFe2O4/reduced graphene oxide (NG).

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