The Norway-based technology developer has announced successful testing of a 6 kW, ammonia-fed solid oxide fuel cell unit. The test unit is seen as the “first building block” of a larger 100 kW module to be stacked & used for marine propulsion.
How simple can a fuel cell be? How about if it’s a direct ammonia fuel cell? This question came to mind during perusal of a paper that appeared in the June 2019 edition of the journal Chemical Engineering Science. The paper, “Development and performance evaluation of a direct ammonia fuel cell stack,” was written by Osamah Siddiqui and Ibrahim Dincer, both active within the Clean Energy Research Laboratory at Ontario Tech University in Canada. Their design may or may not ever reach the point of commercialization, but there is no denying its essential simplicity.
GenCell Energy, an Israeli technology company, recently announced a research collaboration with Fraunhofer UMSICHT, a German research institute, that will deliver a "scale-up of the catalyst synthesis process" for cracking ammonia. This will enable GenCell "to produce large quantities of a novel inexpensive catalyst for generation of hydrogen from ammonia."
The journal Advanced Materials recently published an article that reviews electrochemical ammonia technologies for both synthesis and power generation. In addition to presenting a range of technologies under development, the authors, based at the University of Delaware, present "perspectives in the technical challenges and possible remedies."
Shimshon Gottesfeld’s paper The Direct Ammonia Fuel Cell and a Common Pattern of Electrocatalytic Processes leads with a big number: “A record power density of 450 mW/cm2 has been demonstrated for a direct ammonia fuel cell [DAFC] using an alkaline membrane electrolyte.” We know it’s big because it’s 80% higher than the 250 mW/cm2 that Gottesfeld’s team had achieved in the fall of 2017 and that Gottesfeld, Adjunct Professor of Chemical Engineering at the University of Delaware, reported at the November 2017 NH3 Energy+ Topical Conference.
Japanese manufacturing concern IHI reported on May 16 that it had “successfully generated 1 kW class power” from a direct ammonia solid oxide fuel cell. This is the latest milestone for a technology that could play a major role in the roll-out of Japan’s Hydrogen Society.
Speaking at the NH3 Energy+ Topical Conference last month, University of Delaware Adjunct Professor Shimshon Gottesfeld reported on progress made by the university’s direct ammonia fuel cell (DAFC) project. Evidently, the UDel team is now a big step closer to its goal of establishing the DAFC as a viable automotive power plant.
In the last 12 months ... Researchers from three continents have pushed the boundaries for direct ammonia fuel cells, setting records in power generation and continuous operation.
New research, recently published in the International Journal of Hydrogen Energy, demonstrates that solid oxide fuel cell (SOFC) systems fueled with ammonia could be "more efficient than equivalent hydrogen-based" systems. This new paper comes out of the Fuel Cell Lab at the University of Perugia, in Italy, and builds upon years of research coming out of that laboratory on the use of ammonia and urea in fuel cells.