In order to circumvent the intermittency of renewable energies, the use of an energy vector like hydrogen seems an ideal solution. It enables massive storage of energy over a long period of time, is suitable for a wide range of uses (mobility, heat, processes) and its carbon impact is very interesting depending on its production. This source of energy therefore appears to be a good alternative to the fossil fuels on which we are very dependent. However, 95% of hydrogen is currently produced by steam reforming of natural gas leading to significant emissions of carbon dioxide (CO2)! Besides to this production constraint, hydrogen can be used in fuel cells or in direct combustion for mobile or stationary applications, but this use is highly dependent on its storage, which represents a major issue. Progress in terms of production and storage is therefore necessary before being able to use this energy source efficiently and realistically. Considering this challenge, this interdisciplinary project which brings together one team of the Institute of Physical Chemistry (ICP) CNRS-Paris-Saclay University (Orsay) and 1 member of the Polytechnic Institute of Paris (ENSTA IP Paris) aims to propose a innovative solution for the production and storage of hydrogen adapted to the energy constraints of the current society and to the environments of military deployment operations. The production of Hydrogen, supervised by the ICP partner, will be carried out by using new photocatalytic materials such as composite photocatalysts based on Conjugated Polymer Nanostructures (NPC) coupled with inorganic semiconductors (such as TiO2) and Metal Organic Framework materials (MOFs) synthesized by the ENSTA partner. The composites obtained will then be modified with cocatalysts formed by metallic nanoparticles (without noble metals) induced by radiolysis. Hydrogen storage, supervised by the ENSTA partner, will be considered by adsorption in porous materials such as Metal Organic Frameworks (MOFs) doped with carbonaceous materials and metal nanoparticles synthesized by the ICP partner.