Challenge: Amminex Emmisions Technology A/S (AET) has developed an unique concept for the safe storage, transport and delivery of
ammonia in high density salts for the reduction of NOx. During start up of a diesel vehicle a fast
release of the ammonia for the NOx reduction is limited by high binding
energies of the metal halide salts which require high amounts of heat to be
supplied and thereby lowers the total efficiencies. Furthermore, not all the
ammonia is released from the pressed salt pellets, which decreases the usable
storage capacity. Thus, AET is interested in R&D in exploring novel
materials and storage concepts for ammonia with rapid and controlled
Idea/solution: Electrospinning is a very efficient technology for nanofiber formation
by electrostatic force. In this project, electrospinning will be used as
shaping technique to design a 3-dimensional porous nanofiber composite that has
the potential of increasing active surface area, facilitating fast
absorption/desorption and improving mass transport.
Your task: You will
explore the potential of electrospinning by designing and shaping composite
nanofiber structures, consisting of adsorbents (MOF, zeolite) or salts which can be utilized for ammonia storage. The resulting composite nanofibers will be evaluated by several characterization
methods, including Scanning electron microscopy (SEM), Brunauer-Emmett-Teller
(BET) surface area analysis, Thermogravimetric analysis (TGA) and Differential
scanning calorimetry (DSC). In addition,
you have the opportunity to work together with Amminex Emissions Technologies
(AET), a leading supplier of DeNOx reduction technology to get feedback and
test the nanofibers.
Education in chemistry, physics, engineering or similar. Experience in material science is a plus.