Equipment We Use

DTULogo
We use a wide variety of equipment in our labs.  Fortunately, our section leader Ib Chorkendorff acquired two major grants, the Catalysis for Sustainable Energy (CASE) grant and the Center for Individual Nanoparticle Functionality (CINF).  These 2 grants allowed us to build a good foundation for equipment.  More recently the SurfCat section received a new grant from the Villum Foundation (named VSustain), which has allowed us to purchase state of the art equipment.  Below are pictures of the specific equipment we used. It should be noted that the majority of our Si fabrication is done at the cleanroom at DTU Nanotech and the majority of our microscopy work is done at DTU CEN.  All images are intentionally blurry to mitigate any unwanted recruitment of me as a photographer.

Sputtering Equipment
We have 2 AJA Inc magnetron sputtering systems with the one of the left being an ultra-high vacuum chamber and the one on the right being a high vaccum chamber.  These are easy to use durable and productive machines and AJA is a great company to work with.  I would highly recommend these systems to anybody.

                   


X-Ray Diffraction
We have 2 almost identical PanAnalytical X'Pert Pro systems where one in typically used for in-situ reactions and the other is used for powders and thin films.
                                  




m-reactor
We have a patented microreactor, which is basically just a silicon wafer with holes in in attached to a gas chromatograph.  Nevertheless the engineering involved with this allows us to get detection layers as small as about 1/10 a monolayer of reactant coming off a catalyst.  We do not believe there is a more sensitve technique in the world for detecting dissolved gases in liquid in-situ in an electrochemical set-up.



XPS
We have a Thermo Fischer XPS, where on the back side we have a nitrogen purged atmospheric pressure chamber where we can do electrochemcial measurements.  The advantage of this is that we can directly insert the electrodes into the XPS without exposure to the oxidizing conditions of air.





Furnaces
We have your standard Carbolite box furnaces (not shown) as well as tube furnaces.  Our quasi-homemade tube furnaces can go to 1200C.  We have it currently set-up so we can run 3 different gasses through them.  The furnaces on the right have a line to pull vacuum.  Flushing with vacuum allows us to efficiently pull out all the oxygen before annealing in inert environments.
          XPS     


Electrochemical Set-up
(Biologic)-  We use a VSP Potentiostat with 4 channels.  2 of our channels have impedance capabilities.  These are good potentiostats and I would highly recommend them.

potentiostat












Quartz Crystal Microbalance
(SRS)-  These can be used to determine very small changes in mass. We use these to determine whether we are corroding monolayers of catalyst.  They can very easily be connected to electrochemical set-ups to allow for the very powerful electrochemical quartz crystal microbalance studies.  These are quite cheap and, in my opinion, are one of the most under-utilized tools to analyze electrochemical reactions
EQCM







Gas Chromatographs

We have many Agilent gas chomatographs with most being the 6890 or 7890 model.  Due to horrendous customer support from Agilent, we have recently bought a Perkin Elmer system due to their much better customer support. From left to right, the pictures below are our 6890 model, 7890 model with head space analyzer and our 580C Perkin Elmer model.  All systems are hooked up to allow in-situ measurements from our electrochemical cells.

cc      

HPLC
We have an Agilent HPLC, which we use to analyze liquid products.



Lamps
(Oriel and Thor Labs)- We have a 1000W Oriel Xenon lamp that is our work horse (left picture).  We typically split this in 2 beams to allow for multiple users.  We also have a 300W and 150W Oriel lamp which are similar to the above set-ups except that they do not have a beam splitter.  For long term tests we typically use a Thor Labs (right picture).

Lamp                     LampThor

Spectroscopy Equipment
We have  a Shimadzu 2600 UV-Vis Spectrometer and an FS5  Edinburg Instruments time resolved spectroflourometer.
    
                            

Inductively Coupled Plasma Mass Spectrometer
 (Thermo Fischer)-  This is an excellent machine for determining very small amounts of corrosion (ppb and sometimes ppt).  However it needs constant attention and is best to have a technician in charge of maintaining it.


potentiostat