Direct Electrodeposition of Electrically Conducting Ni3(HITP)2 MOF Nanostructures for Micro‐Supercapacitor Integration

Author:

Behboudikhiavi Sepideh1,Chanteux Géraldine1,Babu Binson1,Faniel Sébastien2,Marlec Florent34,Robert Kevin34,Magnin Delphine1,Lucaccioni Fabio1,Omale Joel Ojonugwa1,Apostol Petru1,Piraux Luc1,Lethien Christophe345,Vlad Alexandru1ORCID

Affiliation:

1. Institute of Condensed Matter and Nanosciences Université Catholique de Louvain Louvain‐la‐Neuve 1348 Belgium

2. Institute for Information and Communication Technologies Electronics and Applied Mathematics Université catholique de Louvain Louvain‐la‐Neuve 1348 Belgium

3. Institut d'Electronique de Microélectronique et de Nanotechnologies Université de Lille CNRS Université Polytechnique Hauts‐de‐France UMR 8520 – IEMN Lille 59000 France

4. Réseau sur le Stockage Electrochimique de l'Energie (RS2E) CNRS FR 3459 33 rue Saint Leu Amiens Cedex 80039 France

5. Institut Universitaire de France (IUF) Saint‐Michel 103 Paris 75005 France

Abstract

AbstractMicro‐supercapacitors emerge as an important electrical energy storage technology expected to play a critical role in the large‐scale deployment of autonomous microdevices for health, sensing, monitoring, and other IoT applications. Electrochemical double‐layer capacitive storage requires a combination of high surface area and high electronic conductivity, with these being attained only in porous or nanostructured carbons, and recently found also in conducting metal–organic frameworks (MOFs). However, techniques for conformal deposition at micro‐ and nanoscale of these materials are complex, costly, and hard to upscale. Herein, the study reports direct, one step non‐sacrificial anodic electrochemical deposition of Ni3(2,3,6,7,10,11‐hexaiminotriphenylene)2 – Ni3(HITP)2, a porous and electrically conducting MOF. Employing this strategy enables the growth of Ni3(HITP)2 films on a variety of 2D substrates as well as on 3D nanostructured substrates to form Ni3(HITP)2 nanotubes and Pt@ Ni3(HITP)2 core–shell nanowires. Based on the optimal electrodeposition protocols, Ni3(HITP)2 films interdigitated micro‐supercapacitors are fabricated and tested as a proof of concept.

Funder

H2020 European Research Council

Publisher

Wiley

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