Abstract:
:Dodecyl amine edge functionalized few-layer graphene oxide quantum dots were synthesized in good yields. The covalent functionalization was demonstrated with NMR and AFM-IR. The resulting structure and particle size was measured with AFM and HRTEM. The thermal stability of the compound was investigated and showed a stability of up to 220 °C. The modified graphene oxide quantum dots showed excellent solubility in various organic solvents, including ethers, methanol, toluene, n-hexane, heptane, xylene, dichloromethane and toluene. The stability of a resulting toluene solution was also proven by static light scattering measurements over several days. The excellent solubility gives the possibility of an efficient and fast spray application of the functionalized graphene oxide quantum dots to steel surfaces. Hence, the macroscopic friction behavior was investigated with a Thwing-Albert FP-2250 friction tester. A thin film of the dodecyl amine functionalized graphene oxide quantum dots on steel lowered the friction coefficient from 0.17 to 0.11 and revealed a significant corrosion inhibition effect.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Wolk A,Rosenthal M,Neuhaus S,Huber K,Brassat K,Lindner JKN,Grothe R,Grundmeier G,Bremser W,Wilhelm Rdoi
10.1038/s41598-018-24062-2subject
Has Abstractpub_date
2018-04-11 00:00:00pages
5843issue
1issn
2045-2322pii
10.1038/s41598-018-24062-2journal_volume
8pub_type
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