CE09 - Nanomatériaux et nanotechnologies pour les produits du futur

Controlled elaboration of mixed layers by reduction of diazonium salts – DIAZO

Submission summary

The proposal is part of the development of functional surfaces for the preparation of nanomaterials with applications in various fields such as analysis (sensors), catalysis, nano-electronics or specific coatings elaboration (antifouling, anti-corrosion, specific adhesion, ...).
Controlling the multi-functionalization with several simple independent molecules is an interesting option to give a substrate new properties. This strategy, if it is mastered, has the advantage of i) avoiding significant upstream synthetic work and ii) being flexible since multiple situations can then be envisaged, ranging from diluting active species to improve their reactivity, to exploiting cooperative nature of complementary properties carried by neighbouring species.
Among existing surface modification strategies, reduction of aryldiazonium cations mixture represents a method of choice, recognized for the stability of the layers it provides. However, it also has serious disadvantages linked to the difficulty of controlling the layers formation (in terms of thickness and composition). There is therefore work to be done to provide essential solutions for optimizing devices with application objectives and to offer the community new alternatives.
In this context, the goal of the DIAZO project is to develop a simple, reproducible and generalizable electrochemical methodology for the controlled and sustainable multi-functionalization of (semi-)conductive surfaces by a mixture of functionalized diazonium cations. The target structures to be immobilized will be designed to form organic monolayers allowing a full and precise characterization.

Project coordination

Christelle GAUTIER (INSTITUT DES SCIENCES ET TECHNOLOGIES MOLECULAIRES D'ANGERS (MOLTECH-Anjou))

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.

Partner

MOLTECH-Anjou INSTITUT DES SCIENCES ET TECHNOLOGIES MOLECULAIRES D'ANGERS (MOLTECH-Anjou)

Help of the ANR 213,280 euros
Beginning and duration of the scientific project: - 48 Months

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