Periodic Reporting for period 2 - BIKE (Bimetallic catalyst knowledge-based development for energy applications)
Reporting period: 2021-04-01 to 2023-12-31
However, hydrogen can not be extracted, but can only be obtained from different raw materials by different processes. Depending on the raw material(s) and the process employed for its production, hydrogen is usually classified as brown (grey), blue, and green. Brown hydrogen is produced along with CO2 emissions, usually starting from fossil-derived raw materials, blue hydrogen relies on the same process as brown hydrogen, along with carbon capture and storage (CCS), thus decreasing CO2 emissions. Finally, green hydrogen is carbon-free since obtained from renewable raw materials (even water) and renewable energy.
Whatever the color of hydrogen, more and more efficient processes are highly desirable. BIKE project focuses on the development of the next generation of bimetallic catalysts. Bimetallic catalysts are promising materials since the synergy between two metals can lead to enhanced catalytic performance since the modification of monometallic catalysts with secondary metals could enhance catalyst activity, selectivity, and stability.
The BIKE approach is applied to three different industrially relevant green and blue hydrogen production processes: A) Steam Reforming of bio-gas/bio-methane; B) Aqueous Phase Reforming of Liquid Renewable Feedstocks; and C) Anion Exchange Membrane Water Electrolysis. These applications have been selected due to their importance in sustainable hydrogen production, and to test and validate the next generation bimetallic catalysts under different conditions, allowing to exploit and validate the reliability of the next generation bimetallic catalysts derived by the BIKE.
In BIKE we propose a novel approach based on the combination of enabling state-of-the-art tools, predictive modelling, advanced characterization, knowledge based design innovative catalyst preparation, and explorative testing, in a single methodology to fully exploit the added value of bimetallic catalysts in a synergistic way. Consequently, BIKE next generation bimetallic catalysts are expected to exhibit superior performance by design.
At the end of the project BIKE has trained 14 young scientists to master and to combine the various state-of-the-art and emerging methodologies for the rational development of bimetallic catalysts to improve current hydrogen production processes and, finally, to implement them in an industrial context; three sets of catalysts (one per each hydrogen production process) have passed lab-scale KPIs and have been scaled up, two sets have been tested in industrial labs, and one set, namely Fe-Co bimetallic electrocatalysts, met the industrial KPIs and its exploitation is currently under evaluation; 16 peer reviewed open access scientific papers have been published.
Modeling protocols have been developed and we proceeded to comparison and validation by experimental data produced by the BIKE partners.
We performed the synthesis of bimetallic catalysts based on noble or non-noble metals optimized for the three catalytic reactions subject of BIKE obtaining several sets of mono and bi-metallic catalysts.
The key features of several sets of catalysts and/or support materials have been determined. The results provided important pieces of information for the rational development of synthetic approaches. We also realized operando cells and setups able to mimic reactors configuration to study the methane steam reforming, the APR, and the AEMWE reactions.
The preliminary test of bimetallic catalysts have been performed and the most promising materials, against pre-screening key performances parameters, have been fish out and optimized. Three sets of optmized catalysts (one per each hydrogen production process) have been scaled up, two sets have been tested in industrial labs, and one set, namely Fe-Co bimetallic electrocatalysts, met the industrial KPIs and its exploitation is currently under evaluation.
Project results led to 13 peer reviewed open access scientific papers, and to several contributions to national and international congresses and workshops.
BIKE ESRs have been involved in both local and network-wide training activities. 8 Network-wide Training Events took place including 3 courses on Transferable skills (European Projects writing and Applications; Project management; Business Planning, Entrepreneurship, start-up a business), and 7 scientific workshops (Second International Training School on NanoAlloys and Course on European Projects writing and Applications; Preparation and characterization of catalysts for hydrogen production; Catalyst manufacturing; Catalyst characterization and operando spectroscopy; Theoretical Approaches to NanoAlloy Catalysis; Catalysis and Design of Advanced Reactors; Catalysts for Electrolysers.).
38 secondments have been performed (some of them have been performed remotely due to the Covid19 pandemics restriction to mobility and the lock-down measures, preventing free access to laboratories).
The BIKE framework is built to precisely address these 3 factors. BIKE will progress from the recent breakthrough represented by predictive modelling that allows, in principle, to derive reaction rate of a specific catalyst (i.e. its activity and selectivity) through computational simulations, thereby avoiding time-consuming trial-and-error screening approaches. Very precise experimental determination of catalysts structures not only in their “resting states”, but also under dynamic conditions will contribute to the determination of the structure of bimetallic catalysts. Finally, optimized catalysts will be prepared following the indications of predictive modelling and characterization, using precise, robust and scalable methodologies. The use of preformed bimetallic NPs fulfils these constrains, since it provides NPs with the right size, composition and structure.