One of the papers in http://www.iscmns.org/work10/Abstracts.pdf says it's "only water" :
Control of excess heat production in Pd-impregnated alumina powder
O. Dmitriyeva, R. Cantwel, M. McConnel, and G. Moddel
A lot of the presentations are now available at http://www.iscmns.org/work10/program.htm -- but NOT this one !!!!
