On behalf of the Chemical and Biological Engineering (CBE) Department, Iowa State University is requesting bids for a Scanning Electrochemical Microscope (SECM) to be used for a range of projects focusing on the electrocatalytic activity of metal surfaces and their corrosion under electrosynthesis conditions. At a minimum, the equipment will meet the following: able to perform electrochemical measurements using both direct and alternating current with high spatial resolution and simultaneously provide information about surface topology; Continuous scan area of 110 mm or greater in all three dimensions (X, Y, Z); Scan speed of 10 mm/s or greater; Closed loop positioning on all three axes; Positioning resolution and accuracy of 20 nm or better; able to properly position the probe without having to move any of the axes to their end position to reset; Ability to obtain the sample topography map during an SECM experiment (simultaneous topography and SECM experiment); system includes a dedicated computer and potentiostat-galvanostat equipped with two independent EIScapable channels (electrochemical impedance spectroscopy)
