Synthesis of reduced graphene oxide/Cu nanoparticle composites and their tribological properties

RSC Advances ◽  
2013 ◽  
Vol 3 (48) ◽  
pp. 26086 ◽  
Author(s):  
Yi Zhang ◽  
Hua Tang ◽  
Xiaorui Ji ◽  
Changsheng Li ◽  
Lin Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Tribological Properties ◽  
Reduced Graphene ◽  
Cu Nanoparticle ◽  
Nanoparticle Composites

Tribological properties of alkylated reduced graphene oxide as lubricant additive

2022 ◽  
Vol 165 ◽  
pp. 107273
Author(s):  
Bo Yu ◽  
Kai Wang ◽  
Xianjuan Pang ◽  
Gensheng Wu ◽  
Jibin Pu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Tribological Properties ◽  
Lubricant Additive ◽  
Reduced Graphene

scholarly journals Effects of Reduced Graphene Oxide (rGO) at Different Concentrations on Tribological Properties of Liquid Base Lubricants

Lubricants ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 11 ◽  
Author(s):  
Jankhan Patel ◽  
Amirkianoosh Kiani
Keyword(s):  
Graphene Oxide ◽  
Physical Properties ◽  
Reduced Graphene Oxide ◽  
Tribological Properties ◽  
High Speed ◽  
Friction And Wear ◽  
Control Sample ◽  
Wear Properties ◽  
Reduced Graphene ◽  
Friction And Wear Properties

In this study, reduced graphene oxide (rGO) nano platelets were used as an additive to enhance friction and wear properties of oil-based lubricants by preparing three samples at 0.01% w/w, 0.05% w/w, and 0.1% w/w concentrations. To analyze the direct effect of rGO nano platelets on tribological properties, 99.9% pure oil was used as a liquid lubricant. A comparative tribological study was done by performing a ball-on-disk wear test in situ under harsh conditions, which was further analyzed using a non-contact 3D optical profilometer. Morphological evaluation of the scar was done using transmission and scanning electron microscopy (TEM, SEM) at micro and nano levels. The lubricants’ physical properties, such as viscosity and oxidation number, were evaluated and compared for all samples including pure oil (control sample) as per ASTM standards. Findings of all these tests show that adding rGO nano platelets at 0.05% w/w showed significant reduction in friction at high speed and in wear up to 51.85%, which is very promising for increasing the life span of moving surfaces in machinery. Oxidation and viscosity tests also proved that adding rGO nano platelets to all samples does not sacrifice the physical properties of the lubricant, while it improves friction and wear properties.

Preparation of reduced graphene oxide/Cu nanoparticle composites through electrophoretic deposition: application for nonenzymatic glucose sensing

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 15861-15869 ◽  
Author(s):  
Qian Wang ◽  
Qi Wang ◽  
Musen Li ◽  
Sabine Szunerits ◽  
Rabah Boukherroub
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrophoretic Deposition ◽  
Glucose Sensing ◽  
Ethanol Solution ◽  
Simultaneous Reduction ◽  
Electrocatalytic Properties ◽  
Reduced Graphene ◽  
Nanoparticle Composites

The paper reports on the simultaneous reduction/deposition of thin films of rGO/Cu NPs from an ethanol solution of GO and CuSO4 using EPD technique. The electrocatalytic properties of the electrode were exploited for non-enzymatic glucose sensing.

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