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CHRNS: Electrochemistry

An improved electrochemistry capability

The original Initiative proposal concentrated on having electrochemistry capabilities on both VSANS and CANDOR. It was later accepted that more impact could be made from reducing the duplication of hardware between the instruments and adding a fluids-handling robot for CANDOR. As such there is a singular potentiometer workstations but with cooperation in scheduling instruments this is unlikely to be an issue sharing between instruments at the moment.


Working on:

  • Temperature control concepts and testing and implementation 
  • Alternative cell geometries 
  • Control electrochemistry experiment from NICE and time-stamping
  • User control
  • Data processing and visualization 
  • Capability to scan parallel to cells for SANS (10-100 micron resolution)
  • Investigate possibilities for electrolyte and membranes asymmetric electrode environments


CANDOR Electrochemical cell development

We have developed a new 3D-printed sample cell for CANDOR:

CANDOE electrochem cell
Cross-section of cell
CANDOR electrochem cell2
Detailed view of cell

VSANS Electrochemical cell development

We have tested thermal response for PEEK VSANS cells compared to regular titanium cells:

Peek cell
VSANS cells and thermal equilibrium times
Many thanks to party of interested scientists that provided feedback and prioritized capabilities:

Kai Liu – Georgetown; Mike Toney – Colorado; Vivek Prabhu – NIST; Mark Dadmun – Tennessee; Kunal Karen – Calgary; Eric Rus – NIST; Ariel Furst – MIT; Shaun Kelley – Medtronic; Harley Skorpenske – ORNL; Gihan Kwon – SNLS-II 



Created February 4, 2023, Updated June 16, 2023