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The Sen Research Group @ UW-La Crosse has access to a variety of scientific instrumentation. Select instruments are listed below: 

Multi-Channel Potentiostat/Galvanostat (VSP-300)

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Computer controlled unit capable of independently operating 5 channels simultaneously in potentiostatic or galvanostatic modes. V-I range of ±10V and ± 500 mA and Electro-impedance (EIS) capability from 1 mHz to 7MHz. Software available for routine electrochemical analysis, impedance analysis and voltammetry.                     

Gas-Chromatograph (GC) with FID and TCD detectors:

Configured with packed columns for the separation, identification and quantification of a mixture of light gases and hydrocarbons such as H2, O2, N2, CH4, CO, CO2, C2 and C3+ hydrocarbons. It is also configured with multiple digital gas flow meters  and mass flow controllers for  controlled delivery of a variety of gases including CO2, N2, CO, Ar, N2 and H2.       

Rotating disk electrode (RDE) system

The WaveVortex-10 is a compact research-grade electrode rotator design from Pine Research for precision Rotating Disk Electrode (RDE) experiments in conjunction with the Biologic potentiostat described previously.  Rotation Rate is adjustable up to 8000 RPM and a variety of electrode surfaces are available for testing.

Viscometer with temperature control

The DV2T Viscometer features a touchscreen display for fast and easy viscosity measurements. User instructions with multi-step test protocols and automated data collection can be achieved with optional RheocalcT software. It allows for small sample volumes (~20 mL) for rheology testing as a function of shear rates and is connected to a circulating chiller to regulate temperature (-10 to 90 C).

Ductless enclosure for safely handling nano-sized dry powders

This ductless portable enclosure protects the operator from nanomaterial particles (less than 100nm in size) encountered during processing of dry powders. It allows safer and easier access to the use of dry nano powders.                               

7-foot Fume hood for electrochemistry

This primary fume hood has been adapted to seamlessly connect (i) three channels from the potentiostat; (ii) accept multiple gas inlet lines from high pressure tanks of H2, N2, Ar, CO2; (iii) feed gas output from an electrochemical cell to the gas chromatograph. This setup enables three independent electrolysis experiments with multiple gas feeds and simultaneous testing of the gaseous products. 

Miscellaneous Equipment with Shared Access

  1. NMR (1H, 13C)

  2. HPLC

  3. AFM

  4. SEM with EDX analyzer 

  5. Metallographic Polishing wheel (NANO1000S)

  6. Ion Chromatography

  7. FTIR

  8. UV/Vis

  9. TGA/DSC

  10. DLS/Zeta Potential

  11. Plasma Cleaner 

  12. 3D Printing

  13. CNC Milling 

  14. X-Ray diffractometer (XRD)

  15. General Machine shop (drilling, mill, band saw cutters, dremel etc.) 

  16. The University of Wisconsin – Madison, College of Engineering, Wisconsin Centers for Nanoscale Technology are shared instrumentation facilities providing equipment, facilities, and expertise in microelectronics, nano-fabrication technology, electron microscopy, micro-analysis and soft materials characterization. (See details here https://wcnt.wisc.edu/) 

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