Probe preparation (IMAGE) Ruhr-University Bochum Caption Biao He is amounting a sample for atom probe tomography. This method can be used to visualize the spatial distribution within electrocatalyst surfaces atom by atom. Credit RUB, Kramer Usage Restrictions The image is free to use for members of the press, provided the relevant copyright notice is included. The image may be used solely for press coverage of Ruhr University Bochum that relates to the contents of the press release “Mechanism of Cobalt-Manganese Catalysts Deciphered”. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.