On the electrografting of stainless steel from para-substituted aryldiazonium salts and the thermal stability of the grafted layer

Nanoconfined self-assembly on a grafted graphitic surface under electrochemical control

“…The concept of STM tip-assisted lithography and nanomanipulation on functionalized solid surfaces is well documented, in particular for thiol based molecular layers self-assembled on gold. 30,[44][45][46][47][48] Few experiments deal with tip-based degrafting of molecules on graphite or graphene and most of them were carried out under UHV conditions. 6,49 Under ambient conditions, we recently demonstrated such degrafting by tipassisted nanoshaving of covalently grafted 3,5-TBD on HOPG and CVD graphene on Cu.…”

“…The thermal and solvent stability of various grafted films on carbon-based and metallic surfaces has been reported. [29][30][31] However, to the best of our knowledge, the in situ structural characterization at the nanoscale of grafted films and their stability under electrochemical control have not yet been reported.…”

Electrochemically Modified Carbon and Chromium Surfaces for AFM Imaging of Double‐Strand DNA Interaction with Transposase Protein

“…The decomposition of the C/1s peak revealed four contributions (Figure 4 b). Following the assignments proposed by Wu et al and Hinge et al, [26,42,45] we assigned the bands at 282.9 eV to the CÀCr bond, 285.1 eV to the C aro ÀC, 286.8 eV to CHEMPHYSCHEM ARTICLES www.chemphyschem.org the CÀS bond and 288.9 eV to C=O of the carbonyl group. The origin of a signal centered at 288.9 eV corresponding to C=O was quite unclear.…”

“…The phenyl radical is produced during the electrochemical reduction of the diazonium salt coming from the organic synthesis or directly formed in situ from the corresponding amine. [18,27] The phenyl radicals thus introduced on carbon or on various metal surfaces [19,25,26] can accommodate a large variety of active chemical groups [17,28] in the para position of the aryl diazonium salt. The possibility to obtain a highly organized and stable organic layer at the electrode surface has also been shown.…”

Surface modification of CoCr alloys by electrochemical reduction of diazonium salts

“…9,10,20 For instance, XPS, Raman and time-of-ight secondary ion mass spectrometry (ToF-SIMS) analysis revealed the existence of both M-O-C (metal-oxide-aryl) and M-C (metal-aryl) bonds on Cu, 21 Al 22 and Mn 23 oxides, and only M-O-C on Cr 24 and Fe oxides. 25 Other authors reported aryl diazonium graing onto indium tin oxide (ITO), 8 uorine tin oxide (FTO), 26 and stainless steel, 27 but did not discuss the type of bonds involved.…”