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Surface modification

About: Surface modification is a research topic. Over the lifetime, 35544 publications have been published within this topic receiving 859567 citations.


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TL;DR: The reaction mechanism of diazonium functionalization of graphene is described and it is shown that the reaction conditions determine the relative degrees of chemisorption and phys isorption, which allows for controlled modulation of the electronic properties of graphene.
Abstract: Graphene is an atomically thin, two-dimensional allotrope of carbon with exceptionally high carrier mobilities, thermal conductivity, and mechanical strength. From a chemist’s perspective, graphene can be regarded as a large polycyclic aromatic molecule and as a surface without a bulk contribution. Consequently, chemistries typically performed on organic molecules and surfaces have been used as starting points for the chemical functionalization of graphene. The motivations for chemical modification of graphene include changing its doping level, opening an electronic band gap, charge storage, chemical and biological sensing, making new composite materials, and the scale-up of solution-processable graphene.In this Account, we focus on graphene functionalization via electron transfer chemistries, in particular via reactions with aryl diazonium salts. Because electron transfer chemistries depend on the Fermi energy of graphene and the density of states of the reagents, the resulting reaction rate depends on t...

281 citations

Journal ArticleDOI
TL;DR: In this article, the effects of surface modification on characteristics of jute fiber and mechanical properties of the biocomposite were evaluated, and the experimental results show that surface modification can remove surface impurities and reduce diameter of the jute fibres.
Abstract: A biocomposite was originally fabricated with biodegradable polymer PBS and jute fibre, and the effects of fibre surface modification on characteristics of jute fibre and mechanical properties of the biocomposite were evaluated in this paper. The experimental results show that surface modification can remove surface impurities and reduce diameter of jute fibres. Regarding the mechanical properties of biocomposites, it is observed that the biocomposites with jute fibres treated by 2% NaOH, 2 + 5% NaOH or coupling agent, respectively, an optimum in mechanical properties can obtain at fibre content of 20 wt.%, which exhibit an obvious enhancement in mechanical strength and modulus compared to the ones with untreated jute fibre. Furthermore, surface modification also exhibits less effects on flexural properties compared to tensile properties and more on flexural or tensile modulus than on the strength.

281 citations

Journal ArticleDOI
TL;DR: In this article, a review of laser surface modification of titanium and its alloys is presented, where the effect of some laser processing parameters on the resulting surface properties of titanium alloys are discussed.

281 citations

Journal ArticleDOI
TL;DR: An improvement in wettability and bioactivity of titanium implant surfaces has been accomplished by combining micro and nano-scale modification and functionalization with protein, peptides, and bioactive compounds.

280 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20232,530
20225,209
20211,961
20202,217
20192,313
20182,263