The International Institute for Science, Technology and Education’s (IISTE) journal Chemistry and Materials Research (vol. 3, no. 3, 2013) has published a report of research done by a team led by Francesco Celani entitled “Experimental Results on Sub-Micro Structured Cu-Ni Alloys under High Temperature Hydrogen/Deuterium Interaction.”
The report describes tests that the team did with hydrogen-loaded constantin wire (a copper-nickel-manganese alloy), in which they report detecting an “anomalous heat effect” with excess heat measured at 60kJ. The report describes and depicts the material preparation, the experimental setup, and the measurement procedures and includes close-up images of the wire used.
In conclusion the report states, “It was experimental found that even low cost material, like commercial Cu-Ni-Mn alloy (named Konstantan or ISOTAN 44), when its surface is properly modified from the point of view of dimensionality, can be used as material able to produce anomalous heat effects because close interaction with Hydrogen (or Deuterium, but at lower intensity) at high temperatures (>300°C).
There’s a lot of detail in the report that you can find in the report. My understanding is that the work was done in June of last year, and that Celani has made improvements in his experiments since then.