HoNESt (History of Nuclear Energy and Society) involves an interdisciplinary team with many experienced researchers and 24 high profile research institutions. HoNESt’s goal is to conduct a three-year interdisciplinary analysis of the experience of nuclear developments and its relationship to contemporary society with the aim of improving the understanding of the dynamics over the last 60 years. HoNESt’s results will assist the current debate on future energy sources and the transition to affordable, secure, and clean energy production. Civil society's interaction with nuclear developments changes over time, and it is locally, nationally and transnationally specific. HoNESt will embrace the complexity of political, technological and economic challenges; safety; risk perception and communication, public engagement, media framing, social movements, etc. Research on these interactions has thus far been mostly fragmented. We will develop a pioneering integrated interdisciplinary approach, which is conceptually informed by Large Technological Systems (LTS) and Integrated Socio-technical System (IST), based on a close and innovative collaboration of historians and social scientists in this field. HoNESt will first collect extensive historical data from over 20 countries. These data will be jointly analyzed by historians and social scientists, through the lens of an innovative integrated approach, in order to improve our understanding of the mechanisms underlying decision making and associated citizen engagement with nuclear power. Through an innovative application of backcasting techniques, HoNESt will bring novel content to the debate on nuclear sustainable engagement futures. Looking backwards to the present, HoNESt will strategize and plan how these suitable engagement futures could be achieved. HoNESt will engage key stakeholders from industry, policy makers and civil society in a structured dialogue to insert the results into the public debate on nuclear energy.

Evaluating and fabricating sustainable materials for the energy sector is crucial in addressing the current energy crisis and climate change. Despite safety and sustainability concerns, especially as the early generations of nuclear power plants (NPP) near the end of their operational lifespans, NPPs produce almost one-fifth of the world’s electrical energy. However, controlling material degradation and reprocessing issues in NPPs remains surprisingly understudied due to the extreme operating conditions. Up to 95% of uranium from spent nuclear fuel can be recycled through reprocessing in concentrated nitric acid at temperatures exceeding 100°C, although the underlying mechanisms and the role of alloying elements in the fuel container are not yet well understood. Electrochemical methods have been applied in these extreme electrolytes to investigate materials degradation mechanisms providing in situ global responses. However, these methods are limited as they rely on assumptions developed in aqueous media and do not provide direct, element-specific information, necessitating complementary ex situ surface characterizations. To bridge the gap, the URANUS project will develop a novel element-resolved electrochemistry setup for extreme electrolytes, leveraging the unique expertise of the PI in this field. Element-by-element degradation mechanisms of metallic materials in concentrated nitric acid will be elucidated for the first time, tracking the fate of each alloying element. Other non-aqueous electrolytes including molten salt systems will also be investigated with this approach. This will open new avenues for controlling the corrosion of materials in the energy sector. The unique element-resolved database generated from this project will serve as input parameters for training machine learning models aimed at efficiently discovering optimal alloys in specific environments, thereby reducing the consumption of raw and scarce materials during the materials design process.

Realizing novel superconductors working at high- and possibly room-temperature would completely transform technology as we know it, e.g., enabling the development of low-loss power lines. Hydrogen and hydrogen-rich compounds have been predicted to exhibit high-temperature superconductivity under high-pressure. Since then, the quest for high-temperature superconductivity and high-pressure science have been deeply interconnected, leading to several breakthrough discoveries and taking us a step closer to the "grail" of room-temperature superconductivity. However, the superconducting phases demonstrated until now cannot be recovered at ambient pressure, which prevents their use in real-life applications. To exploit kinetic effects and enable recovery of superconducting hydrides at ambient conditions, we will combine for the first time material synthesis at high-pressure with a suite of dynamic compression approaches. Indeed, it has been demonstrated that dynamic compression can favor metastability, i.e., the ability to retain a phase beyond its stability domain, and could thus provide a way to recover the phases of interest. We will combine different experimental techniques to explore (de)compression timescales spanning several orders of magnitude: using dynamic loading in diamond-anvil cells, we will perform experiments over milliseconds, while the use of high-power lasers will enable compression over only a few nanoseconds. Such wide exploration will investigate the influence of strain-rate on hydrides (meta)stability and inform the open questions on the kinetics of the formation of these compounds. With the new and much needed insight from experiments, we will also tackle the challenge of designing optimized pathways for favouring hydrides ’metastability at low pressure. Ultimately, we will be able to perform experiments at the most suited timescale not only to produce, but also to stabilize and recover the materials of interest for real-life applications.

IASI - Flux and temperature July 2016 was Earth's warmest month on record. The first six months of 2016 were also the warmest six-month period since modern meteorology observations began. This, along with the recent so-called “hiatus” in the warming trend, and the Paris climate agreement, all attracted scientific and public attention as to how reliable the historical temperature record is, and to the level of confidence in future model climate projections. Although the role of satellites in observing the variability and change of the Earth system has increased in recent decades, remotely-sensed observations are still underexploited to accurately assess climate change fingerprints. The IASI - Flux and Temperature (IASI-FT) project aims at providing new benchmarks for top-of-atmosphere radiative flux and temperature observations using the calibrated radiances measured twice a day at any location by the IASI instrument on the suite of MetOp satellites. The main challenge is to achieve the stringent accuracy and stability necessary for climate studies, particularly for climate trends. Building upon the expertise accumulated by my group during the last 10 years, I propose the development of innovative algorithms and statistical tools to generate climate data records at the global scale, of (1) spectrally resolved outgoing radiances, (2) land and sea skin surface temperatures, and (3) temperatures at selected altitudes. Time series of these quantities will be compared with in situ and other satellite observations if available, atmospheric reanalyses, and climate model simulations. The observed trends will be analyzed at seasonal and regional scales in order to disentangle natural (weather/dynamical) variability and human-induced climate forcings. This project, while clearly research-oriented, will lead towards an operational integrated observational strategy for the Earth climate system, given that the IASI program started in 2006 and will last until 2040 at least.